After being exposed to an electromagnet shrinking machine, Joe’s height decreased by 120 cm over 1.5 seconds. His height decreased by the same amount each second. How much did Joe’s height change each second?

Answers

Answer 1

Answer:

-80cm/sec

Step-by-step explanation:

It is given that Joe was being exposed to an electro magnet shrinking machine.

Because of this his height started decreasing.

The decrease was at a constant rate per second is given.

In 1.5 seconds, the height decreased by 120 cm.

Since given as constant decrease per second we find that this is direct variation of height over second.

variation per second =

Change in each second would be with negative sign indicating decrease

Answer 2

Answer: -80cm

Step-by-step explanation: khan academy


Related Questions

Can someone help me please

Answers

Answer:

Can't properly see the question mate

Step-by-step explanation:

Answer:

165

Step-by-step explanation:

A whole line equals to 180 degrees.

180-15=165

Hope this helps plz mark brainliest!

A table has an area of 12 and a perimeter of 16 ft. What are the dimensions of the table?
A.2 ft by 6 ft
B.2 ft by 8 ft
C.4 ft by 3 ft
D.4 ft by 4 ft
PLEASE HELP

Answers

Answer:

A

Step-by-step explanation:

You can check to see if it is A is you do A = Bh

The base in this question is 6 while the height is 2. To vcheck area you can multiply these to get 12 units squared. To check the perimeter, you can draw a picture. Label each side, you know that there are going to be two 2's and 2 6's so you can add those for the perimeter:

2 + 2 + 6 +6 = 16 units for the perimeter

The answer will be c !

the terms in the sequence increase by the same amount each time ? ? 17 ? ? 29 a)work out the missing terms b)work out in terms of n the nth term of the sequence

Answers

Answer:

The missing terms are 9,13,21 and 25

The nth term is 4n + 5

Step-by-step explanation:

From the arrangement, we can see that 17 is the third term while 29 is the 6th term

Now is this sequence arithmetic or geometric?

Since it increases by the same amount each time, then it is an arithmetic sequence.

Mathematically the third term in an arithmetic sequence with first term a and common difference d is ;

a + 2d = 17 •••••(i)

While for the sixth term, we have

a + 5d = 29 ••••••(ii)

The equations are obtainable for the nth term of an arithmetic sequence which can be written as;

Tn = a + (n-1)d

where a is the first term, n is the term number and d is the common difference

Now solving both equations simultaneously;

We can subtract equation i from ii

Thus;

5d-2d = 29-17

3d= 12

d = 12/3 = 4

we can substitute the value of d in any of the equations to get a

let’s use 1

That would be;

a + 2d= 17

a + 2(4) = 17

a + 8 = 17

a = 17-8

a = 9

Now the first term is 9

Second would be 9 + 4 = 13

Fourth would be 3rd + d = 17 + 4 = 21

Fifth would be 4th + d = 21 + 4 = 25

So the sequence now correctly arranged would be;

9,13,17,21,25,29

where 9,13,21 and 25 are the missing terms

b. Mathematically the nth term of the sequence is

a + (n-1)d

let’s substitute the values of a and d , we have

9 +(n-1)4

9 + 4n-4

4n + 5

At Baskin Robbins, you can choose between the flavors (vanilla, chocolate, cookies 'n cream, strawberry, mango sorbet and mint chocolate chip), the number of scoops (1, 2 or 3), and if you want it in a cone or a cup. What is the probability of someone choosing cookies 'n cream ice cream with 2 scoops?

Answers

Answer:

[tex]\frac{1}{18}[/tex]

Step-by-step explanation:

Given:

Flavors of ice cream are vanilla, chocolate, cookies 'n cream, strawberry, mango sorbet and mint chocolate chip.

Number of scoops can be 1, 2 or 3.

To find: probability of someone choosing cookies 'n cream ice cream with 2 scoops

Solution:

Probability refers to chances of occurrence of some event. Two events A and B are said to be independent if probability of one event does not depend on the probability of the other event.

For such events,

P(A and B)= P(A)×P(B)

Probability = number of favourable outcomes/Total number of outcomes

In the given question, cookies 'n cream ice cream with 2 scoops can be in a cone or a cup.

Therefore,

probability of someone choosing cookies 'n cream ice cream with 2 scoops =( probability of choosing cookies 'n cream ice cream × probability of having two scoops of ice-cream × probability of having ice-cream in a cup )+ (probability of choosing cookies 'n cream ice cream × probability of having two scoops of ice-cream × probability of having ice-cream in a cone )

= [tex]\left ( \frac{1}{6} \right )\left ( \frac{1}{3} \right )\left ( \frac{1}{2} \right )+\left ( \frac{1}{6} \right )\left ( \frac{1}{3} \right )\left ( \frac{1}{2} \right )[/tex]

=[tex]=\frac{1}{36}+\frac{1}{36}\\=\frac{2}{36}\\=\frac{1}{18}[/tex]

Bobby makes trail mix for his hiking group. He mixes 1 and one eighth pounds of​ peanuts, 12 ounces of​ raisins, 11 ounces of​ walnuts, and 7 ounces of pretzels. If Bobby divides the trail mix equally among the 8 hikers in the​ group, how many ounces of trail mix does each hiker​ receive?

Answers

Answer:

If he divide the trail mix among 8 hikers equally each will get 48/8 = 6 ounces.

Step-by-step explanation:

He makes a trail mix . He mixed 1 1/8 pounds of peanuts , 12 ounces of raisins, 11 ounces of walnuts and 7 ounces of pretzels. Notice the weight units are not equal to we have to convert the pounds to ounces so all the weight will be in ounces.

1 pound  = 16 ounces

1 1/8 pounds = ? ounces

cross multiply

1 1/8 × 16

9/8 × 16 = 18 ounces

Therefore,

His trail mix are

18 ounces of peanuts

12 ounces of raisins

11 ounces of walnuts

7 ounces of pretzels

The total weight = 18 + 12 + 11 + 7 = 48 ounces

Weight of the trail mix = 48 ounces

If he divide the trail mix among 8 hikers equally each will get 48/8 = 6 ounces.

what is 7.17+25.8≈ equal to?

Answers

Answer:

7.17 + 25.8 = 32.97

Answer:

7.17+25.8= 32.97

the answer is above

I’m lazy to do this XD But I’m kinda confused

Answers

Answer:

1) 20 Students    2) 5 Students 3) 11 Students

Step-by-step explanation:

1) Count how many numbers are there (not digits)

2) Count the number of 3's and 4's found

3) Count the number of times a number equal to or greater than 6 appears in the data range.

Find the volume of a right circular cone that has a height of 17.7 cm and a base with a diameter of 15.8 cm. Round your answer to the nearest tenth of a cubic centimeter.

Answers

Answer:

[tex]1156.8cm^3[/tex]

Step-by-step explanation:

The volume of a cone is given as:

[tex]V =\frac{1}{3} \pi r^2h[/tex]

where r = radius

h = height of cone

The height of the cone is 17.7 cm and its base radius is 7.9 cm (diameter is 15.8 cm).

Its volume is:

[tex]V = \frac{1}{3} * \pi = 7.9^2 * 17.7\\ \\V = 1156.8cm^3[/tex]

Answer:

1157.3cm^3

Step-by-step explanation:

voume of a cone =V=πr^2h^3

Diameter = 15.8cm

Height = 17.7cm

Radius = diameter/2

= 15.8/2 = 7.9cm

Pi = 22/7

V = 22/7 ×7.9×7.9×17.7/3

= 22/7×62.41×5.9

V = 1157.25cm^3

Hence the volume of the cone is 1157.3cm^3

to the nearest 10th

what is the remainder when 22,714 is divided by 886?

Answers

22714/886=25.637
22714-886*25=564
564 is the remainder.

The remainder of the equation A = 22,714 / 886 is given by R = 564

What do you mean by an Equation?

Equations are statements in mathematics that have two algebraic expressions on either side of the equals (=) sign.

It displays the similarity of the connections between the phrases on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are examples of the parts of an equation. When creating an equation, the "=" symbol and terms on both sides are necessary.

Given data ,

Let the remainder be represented as R

Let the equation be represented as A

Now , the value of A is

Let the first number be p = 22,714

Let the second number be q = 886

Now , A = p/q

On simplifying , we get

A = 22,714 / 886

886 x 25 = 22150

So , the difference between 22714 - 22150 = 564

Therefore , the value of R is 564

Hence , the remainder is 564

To learn more about equations click :

https://brainly.com/question/19297665

#SPJ3

Solve for x.
[tex] \frac{x}{2} = - 7[/tex]

Answers

Answer:

x = -14

Step-by-step explanation:

[tex]\frac{x}{2}[/tex] = -7

multiply 2 on both sides

the 2's cancel out on the fraction side, leaving x = -7(2)

multiply -7 and 2 to get -14

x = -14

Answer:

-14

Step-by-step explanation:

We must find out what divided by 2 equals -7

So we work backwards

2(-7)

2(-7)=-14

When multiplying negative and positive you get negative

Plug in -14 in x

-14/2=-7

If you can't solve it put it in calculator

Hope this helps plz mark brainliest!

On a coordinate plane, a line goes through points (negative 2, 0) and (0, 2). Study the graph of the line. Use the drop-down menu to find its equation. The equation of the line is .

Answers

Answer:

[tex]y=x+2[/tex]

Step-by-step explanation:

Finding Slope:

We are given the points (-2,0) and (0,2).

Slope is [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]m=\frac{2-0}{0-(-2)}=\frac{2}{2} = 1[/tex]

The slope is one.

Finding the Y-intercept:

So far we have [tex]y=x+b[/tex].

We can use a point to find 'b', the y-intercept.

I will use (0,2):

[tex]2=0+b\\2-0=0-0+b\leftarrow \text {Subtraction Property of Equality} \\\boxed {2=b}[/tex]

The y-intercept is 2.

Final Equation:

The equation of the line is [tex]y=x+2[/tex].

In slope equations, the 'one' is commonly hidden.

Answer:

y = x + 2

Step-by-step explanation:

Work out 97.974436 + 14 give your answer to 2 decimal places

Answers

Answer:

111.97

Step-by-step explanation:

97+14=111

to 2dp =.97

•°•=111.97


I WILL MARK BRAINLIEST
If a tuna can has a diameter of 6.5 cm , and a height of 3 cm , determine the area of the label. (I'm only asking for the label, not the whole thing :))

Answers

Answer:

61.27cm^2

Step-by-step explanation:

The tuna can has a shape of a cylinder, and the area of the  tuna lablel is the  lateral surface area of the can

[tex]A=2\pi rh[/tex]

Data

diameter d= 6.5cm

radius r = [tex]\frac{diameter}{2}[/tex]= [tex]\frac{6.5}{2} = 3.25cm[/tex]

height h= 3cm

leteral surface area

[tex]A=2*3.142*3.25*3\\= 61.269\\=61.27cm^2[/tex]

✨Could y'all help me pls cuz im dumb soooo imma give BRAINLIEST and don't jus pick a random answer (-_-")✨

The vertices of a triangle are located at the points A(-1, 0), B(-2, 2), and C(3, 3). A'B'C' is the result of rotating ABC 180° about the origin. Which statement can be used to find the coordinates of the vertices of A'B'C'??

A. multiply each x-value by -1 and keep each y-value the same

B .multiply each x-value by -1 and multiply each y-value by -1

C. multiply each x-value by -1, keep each y-value the same and switch their places

D. keep each x-value the same, multiply each y-value by -1 and switch their places

Answers

Answer:

multiply both the x value and y value by -1

Solve the following equation. Then place the correct number in the box provided. 3y + 2 ≥ 5y +8

Answers

Answer:

[tex]y\leq -3[/tex]

Step-by-step explanation:

[tex]3y+2 \geq 5y+8 \\\\3y\geq 5y+6\\\\-2y\geq 6\\\\y\leq -3[/tex]

Hope this helps!

Answer:

-3 ≥y

Step-by-step explanation:

3y + 2 ≥ 5y +8

Subtract 3y from each side

3y-3y + 2 ≥ 5y-3y +8

2 ≥ 2y +8

Subtract 8 from each side

2-8 ≥ 2y +8-8

-6 ≥ 2y

Divide by 2 on each side

-6/2 ≥ 2y/2

-3 ≥y

A carpenter must pick up a wooden beam from the Home Depot. The wooden beam is 12 feet long. The bed of his truck is 5.5 ft by 8 ft by 2 ft. If he puts the beam in the bed diagonally, how much will the beam stick out the back of the truck

Answers

Answer:

Beam stick out = 2.09 ft

Step-by-step explanation:

Given:

Length of wooden beam = 12 ft

Side of bed =  5.5 ft by 8 ft by 2 ft

Find:

Length of wooden beam needed.

Computation:

[tex]Length\ of \ diagonal = \sqrt{a^2+ b^+ c^} \\\\\\ Length\ of\ diagonal = \sqrt{5.5^2+ 8^2+ 2^2}\\\\ Length\ of\ diagonal = \sqrt{30.25+64+4}\\\\Length\ of\ diagonal = \sqrt{98.25}\\\\Length\ of\ diagonal = \sqrt{30.25+64+4}\\\\Length\ of\ diagonal = 9.91[/tex]

Length of wooden beam needed = 9.91 ft

Beam stick out = 12 ft - 9.91 ft

Beam stick out = 2.09 ft

Plz answer fast with steps

The product of two consecutive odd numbers is 10 more than the square of the smaller number.Find the smaller number.

If you answer i will give you 50 points

Answers

Answer: 5 and 7

Step-by-step explanation:

(x)*(x+2)-10=(x)^2

x^(2)+2x-10=x^2

x^(2)+2x=x^2+10

2x=10

x=5

x+2=5+2=7

I need help with this can someone please please help me

Answers

Answer:

SAS

Step-by-step explanation:

Please answer correctly !!!!!!! Will mark brainliest !!!!!!!!!!!

Answers

Answer:

ishaan is 21

chris is 7

Step-by-step explanation:

Subs 3C from (1) for I in(2):

3C = C + 14   —>  C = 7,  I = 21

Find the sticker price for a vehicle with the following features and costs: suggested retail price of $15,250, destination charge of $359, equipped with AC, tinted window, and a custom sound system for $800, $210, and $490, respectively.

$16,260

$17,109

$16,050

$16,850

Answers

Answer: The correct answer would be $17,109.

Step-by-step explanation:

The reasoning behind this answer is quite simple and easy to approach.

The suggested retail price is the base price for the vehicle and any other prices presented in the problem would be in addition to the base price.

So, with this information, we know that the base price is $15,250 and that the additional options would be $359 + $800 + $210 + $490.

Therefore, after completing the math for the additional options and adding them to the base price, you will receive the final cost of $17,109.

A rectangle has length 9 cm and with 7 cm. The rectangle is to be enlarged by scale factor of 4. Calculate the length of the enlargement.

13cm

28cm

36cm

64cm

Answers

28cm ezeeeeeee bruv

Answer:

i think 28cm is the answer.

Evaluate m^0-n^2 form=2 and n=-1

Answers

Anything to the power of 0 equals to one. Therefore the answer is -1

A bag of 60 skittles has an equal amount of red, orange, yellow, green, and purple what is the probability of choosing a green

Answers

Answer:

1/5

Step-by-step explanation:

60 /5 = 12

So there are 12 red, 12 orange, 12 yellow, 12 green, 12 purple

P(green) = green/ total = 12/60 = 1/5

Answer:

If a bag of skittles has and equal amount of red,orange,yellow,green and purple there are 60 colors and 5 colors so 60 skittles and 5 colors divided give u 12 so that means that there are 12 skittles of each color so the probability would be 12 out 60 skittles  

Step-by-step explanation:

the distance between the points (-3,0) and (4,0) is

Answers

Answer:

[tex] \sqrt{7} [/tex]

Step-by-step explanation:

[tex] \sqrt{(4 - ( - 3) + (0 - 0)} [/tex]

[tex] \sqrt{(4 + 3) + 0} [/tex]

[tex] \sqrt{7 + 0} [/tex]

[tex] \sqrt{7} [/tex]

Answer:

7

Step-by-step explanation:

Two points P1 (x1,y1) and P2(x2,y2)

d=SQRT((x2-x1)^2+(y2-y1)^2))

choose your points

let (-3,0) be (x1,y1)

let (4,0) be (x2,y2)

Substitute the values into the equation

SQRT((4-(-3))^2+(0-0)^2))

Simplify

SQRT(7^2+0)

Square root of 7 squared is 7 or -7, however distance cannot be negative so the answer is 7

This applies to all two points however there is a faster solution for these two points as they have the same y value meaning you could've just drawn a line between these two points on a Cartesian plane and counted 7.

for what value of x would the quotient (2x^2+3x-4÷(×+4) not make sense​

Answers

Answer:

  -4

Step-by-step explanation:

No quotient is defined when the denominator is zero. Here, the denominator will be zero for x = -4.

The value -4 does not make sense for x in this quotient.

Erin built a wooden box to hold hay on her farm. Hay costs $14dollar sign, 14 per cubic meter. How much will it cost to completely fill the box with hay?

Answers

Here is the complete question.

Erin built a wooden box to hold hay on her farm.The box is 3 \text { m}3 m3, start text, space, m, end text long, 1 \text { m}1 m1, start text, space, m, end text wide, and 1 \text { m}1 m1, start text, space, m, end text high.Hay costs $14dollar sign, 14 per cubic meter. How much will it cost to completely fill the box with hay?

Answer:

it cost  $42 to completely fill the box with hay

Step-by-step explanation:

Given that :

The length of the wooden box = 3m ; the width of the box = 1m and the height of the box = 1 m; we can easily determine the volume of the rectangular wooden box;

We all know it would assume the shape of a rectangular prism and it's volume = L  × W × H

Thus; the volume of the box = . 3 m × 1 m × 1 m = 3 m³

However, the question proceeds by stating it that the wooden box cost $14 per cubic meter;

So , if 1 cubic meter = $14;

three cubic meters = $14 × 3  = $42

Hence;  it cost  $42 to completely fill the box with hay

A similar right triangle would be created by a rise of 8 and a run of

Answers

Answer:

It would be a run of 3

Step-by-step explanation:

Answer:

The slope is 4/3, so if the rise is increased by 8, then the run must increase by 6.

Step-by-step explanation:

How many grams of water would require 4000 joules of heat to raise its temperature from
65°C to 100°C? The specific heat of water is 4.181?

Answers

Answer: 27.33 g water

Step-by-step explanation:

For this problem, we will need to use the equation for heat: q=mCΔT. Since we are given heat, change in temperature, and specific heat, all we have to do is plug them in to find grams.

4000J=m(4.181J/g°C)(100-65°C)              [find change in temperature]

4000J=m(4.181J/g°C)(35°C)    [divide both sides by specific heat and change in temperature]

m=27.33 g

When solving p2+5=8p-7, kate wrote p2+12=8p. The property she used is

Answers

Answer:

She used the addition property of equality:

p2 + 5 = 8p - 7

     +7           +7

p2 + 12 = 8p

Find the length of side b to two decimal places

Answers

Answer:

b = 14.34

Step-by-step explanation:

sin(Θ) = (Opposite/Hypotenuse)

sin(35)= (b/25)

25 x sin(35) = 14.33941091

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