Answer:
6.66 hours, that is, 6 hours and 40 minutes.
Step-by-step explanation:
If Mike can plow a field in 12 hours, we plows 1/12 of the field each hour.
If Phil can plow a field in 15 hours, we plows 1/15 of the field each hour.
So if they are working together, they can plow (1/12) + (1/15) of the field each hour, that is:
(1/12) + (1/15) = (5 + 4) / 60 = 9 / 60 = 3 / 20 = 1 / 6.66
So if they work together, they can plow the field in 6.66 hours, that is, 6 hours and 40 minutes.
Define a quadratic function y = f (x) that satisfies the given conditions.
Vertex (-3, -4) and passes through (0, -31).
Answer:
it says that the given condition for vertex (-3,-4) and passes through (0,-31)
You use a garden hose to fill a wading pool if the water rises 12 cm or seven minutes and you record the data point of (21,y) What is the value of Y?
Answer:
The rate of change at which the water level rise is 13/6 cm/minute.The slope of the line is 13/6.The value of y is 23, (12,23).
Step-by-step explanation:
In the question the water rises 13 cm every 6minutes. Taking x to represent the time in minutes and y to represent the rise in cm then, find the rise y in time x as;
6 minutes=13 cm
1 minute=?---------------------perform cross multiplication
(1*13)/6=13/6
Hence in 1 minute, the rise is 13/6 cm
Thus in 12 minutes, the rise will be ;
12 * 13/6 = 2*13= 26 cm
(x,y) will be (12,26)
Finding the slope of the line using point (6,13) and (x,y)
The rate of change at which the water level rises equals the slope of the line.This is the justification.
(x - 4)(x + 5) need help asap
Answer:
[tex]x^2+x-20[/tex]
Step-by-step explanation:
[tex](x-4)(x+5)= \\\\(x)(x)+(5)(x)+(-4)(x)+(-4)(5)= \\\\x^2+5x-4x-20= \\\\x^2+x-20[/tex]
Hope this helps!
A farmer picks a spherical piece of fruit. The farmer measures the diameter to be 19.2 cm. What is the surface area of the fruit? Use 3.14 for pi.
Answer:1157.53
Step-by-step explanation:
Equation: 4×pi×r squared
Radius is half of diameter so 19.2÷2=9.6
4×3.14×9.6squared=1157.53
Answer:
Answer:1157.53
Equation: 4×pi×r squared
4×3.14×9.6squared=1157.53
answer Is not B
help is appreciated
Answer:
d
Step-by-step explanation:
The sum to n terms of a geometric sequence is
[tex]S_{n}[/tex] = [tex]\frac{a(r^{n}-1) }{r-1}[/tex]
where a is the first term and r the common ratio
Here a = 3 and r = 12 ÷ 3 = 4 , thus
[tex]S_{8}[/tex] = [tex]\frac{3(4^{8}-1) }{4-1}[/tex]
= [tex]\frac{3(65536-1)}{3}[/tex] = 65536 - 1 = 65535 → d
Answer:
d.
Step-by-step explanation: the other person said it and they seem to be way smarter then i am so pick d
I need mega help pleasseeeeee
Answer:
-m/5 - 5 = 1
+ 5 + 5
-m/5 = 6
*5 * 5
-m = 30m = -30First move the numbers to one side.
Then you have to cancel the fraction.
Then solve.
Hope this helps
petunia has 4 friends now. last year she had 16 friends. what is the percent change?
Answer:
25%
Step-by-step explanation:
4/16
= 1/4
= 0.25
= 25%
Slove the equation -3x+1+10x=x+4
Answer:
16
Step-by-step explanation:
Answer:
[tex]x=2[/tex]
Step-by-step explanation:
[tex]-3x+1+10x=x+4[/tex]
[tex]-3x+10x-x=4-1[/tex]
[tex]6x=3[/tex]
[tex]x=2[/tex]
At the Laika Boss Kennel Club, there are 15 dogs that are hairy or small, 2 dogs that are hairy and small, and 9 dogs that are small. How many dogs are hairy?
Answer:
8 hairy dogs
Step-by-step explanation:
There are 15 dogs that are hairy or small
2 that are hairy and small
9 that are small
small - ( hairy and small) =just small
9 -2 = 7 small only dogs
Take the total dogs minus the small dogs minus the small and hairy dogs to find the hairy dogs
15 - 7 - 2 =6
There are 6 hairy dogs
2 small and hairy dogs
7 small dogs
total 15 dogs
If we want the total of the hairy dogs
2 small and hairy + 6 hairy = 8 hairy dogs
Which equation correctly represents the distance between −15.1 and −3.9 on a number line?
a |−3.9−(−15.1)|=11.2
b −15.1−3.9=−19
c |−15.2+(−3.9)|=19
d −3.9−15.1=−11.2
which on is it
Answer: The correct answer is A
Which of the following is a geometric sequence? Question 11 options: A) 2, 6, 18, 54, 162, 486, ... B) 0, 5, 10, 15, 20, ... C) 1, 5, 9, 13, 17, ... D) 5, 1, –3, –7, –11, –15, ...
Answer:
A
Step-by-step explanation:
A geometric sequence is a sequence that increases by a factor from one term to the next. A is the only one that does this, and it increases by a factor of 3. All the others are an arithmetic sequence, where each term in increasing by a constant number.
Answer:
A
Step-by-step explanation:
helllllllllllllllllllllpppppppppp
Answer: C
Step-by-step explanation: 7 squared is 49 so
.7 times .7 is .49
The cost of renting an apartment can be modeled by the function C(m)=900m+1400, where C(m) is the cost in dollars for m months of living in the apartment. State the meaning of the slope and y-intercept of this function with respect to the costs associated with renting the apartment.
Answer:
On the context of the problem, the slope means the total paid for every month that the apartment is rented, 900 per month in this case, while the y-intercept means the initial cost for renting the apartment, 1400 upfront in this case.
Step-by-step explanation:
This function is linear, which means that it increases at a steady rate and has the following form:
[tex]y(x) = a*x + b[/tex]
Where "a" is the slope or the rate at which "y" changes for every change in "x". While "b" is the number at which the function crosses the "y" axis.
On the context of the problem, the slope means the total paid for every month that the apartment is rented, 900 per month in this case, while the y-intercept means the initial cost for renting the apartment, 1400 upfront in this case.
Please help me answer this question
Answer:
B
Step-by-step explanation:
Use the formula: V = [tex]\frac{1}{3}[/tex][tex]\pi[/tex]r²h
33.5 = [tex]\frac{1}{3}[/tex](3.14)(4)h
33.5 = 4.19h
8 = h
]solomon needs to justify the formula for the arc length of a sector. which expression best completes this argument? the circumference of a circle is given by the formula c=pi * d , where d is the diameter. because the diameter is twice the radius, c= 2 * pi * r. if equally sized central angles, each with a measure of n°, are drawn, the number of sectors that are formed will be equal to 360°/n° the arc length of each sector is the circumference divided by the number of sectors, or _____. therefore, the arc length of a sector of a circle with a central angle of n° is given by 2*pi*r*n/360 or pi*r*n/180 . a. 2*pi*r/270/n b. 2*pi*r/360/n c. 2*pi*r/180/n d. 2*pi*r/90/n
Answer:
[tex]\frac{2 \pi r}{\frac{360^{\circ}}{n^{\circ}}}[/tex] best completes this argument
Step-by-step explanation:
Circumference of circle =[tex]\pi \cdot d[/tex]
Where d is the diameter of circle
We are given that if equally sized central angles, each with a measure of n°, are drawn, the number of sectors that are formed will be equal to [tex]\frac{360^{\circ}}{n^{\circ}}[/tex]
So, Number of sectors = [tex]\frac{360^{\circ}}{n^{\circ}}[/tex]
The arc length of each sector is the circumference divided by the number of sectors
[tex]\Rightarrow \frac{\pi \cdot d}{\frac{360^{\circ}}{n^{\circ}}}[/tex]
Diameter d = 2r (r = radius)
[tex]\Rightarrow \frac{2 \pi r}{\frac{360^{\circ}}{n^{\circ}}}[/tex]
Option b is true
Hence[tex]\frac{2 \pi r}{\frac{360^{\circ}}{n^{\circ}}}[/tex] best completes this argument
Answer:
2 pie r/ 360 over n
Step-by-step explanation:
just did this
Let u = < -6 , 3 >, v = < 1 , 9 >. Find u - v.
Answer:
< - 7, - 6 >
Step-by-step explanation:
Subtract corresponding components, that is
u - v
= < - 6, 3 > - < 1, 9 >
= < - 6 - 1, 3 - 9 >
= < - 7, - 6 >
Hi
Please answer:
How are you?
What is this?
This is a App called Brianly in which you ask questions regarding your knowledge
Give the answer correct to 3 significant figures.
Answer:
52.868
Step-by-step explanation:
do you want me o explain step by step
Answer:
52 point 868
Step-by-step explanation:
i think but no one ever wants an explanation unless u want one lol
gebra
Assignment
Active
Analyzing the Discriminant of a Quadratic Equation
Which values of o will cause the quadratic equation-x2 + 3x + c = 0 to have no real number solutions? Check all that
apply
I-5
- 2 /
1
no
Answer: The answer is 1, 2
Step-by-step explanation:
What is the measure of
Answer:
x= 145
Step-by-step explanation:
this equals to 180
so 180- 35=
Answer:
x=145
Step-by-step explanation:
When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?
-7
1
7
Answer:
14
Step-by-step explanation:
Plug in the values into each equation and solve.
3x² - 2y
3(3)² - 2(5)
3(9) - 10
27 - 10
17
2x² - 3y
2(3)² - 3(5)
2(9) - 15
18 - 15
3
Now take the two values and subtract them from each other.
17 - 3 = 14
What is the final transformation in the composition of
transformations that maps pre-image ABCD to image
A'B'C"D"
Answer:
Translation
Step-by-step explanation:
We'll translate (move) the quadrilateral ABCD to A'B'C'D' to prove their congruency
Answer:
The Answer is C. a 270 degree rotation about point B’
Step-by-step explanation:
Took the test, here is image proof lol, hope this helps you guys
What is the value of a ?
50
55
100
110
Answer:
50
Step-by-step explanation:
The inscribed angle theorem tells us that the inscribed angle of an arc is half the arc measure.
As a is the inscribed angle, the answer is 100/2 = 50
Please help me!!!!!!! :)
Answer:
The answer would be 2
Step-by-step explanation:
Add the numbers given: 0+1+2+3+4=10.
Divide the answer by the amount of numbers given: 10÷5=2.
Your answer is 2.
How much less is 50km than 13.9km?
Answer: It is not less
Step-by-step explanation: 50 km is 36.1 km more than 13.9.
Hope this helps !
-Carrie
Answer:
It is not less
Step-by-step explanation:
50 km is 36.1 km more than 13.9
What 3 numbers multiplied equal 12.5?
Find the Value of x.
읽
28
20
0 10
Answer:
x =28
Step-by-step explanation:
We have similar triangles, so we can use ratios
12 8
------ = ----------
12+30 x
Using cross products
12x = 8*(42)
12x = 336
Divide by 12
12x/12 = 336/12
x =28
if you have blue, green ,yellow and red what is the probability of spinning red twice
Answer:
2% chances
Step-by-step explanation:
The probability of spinning red is 2 out of 4 because since there is 4 colors and spinning a color twice it can't happen.
How do i know
1: Divide the number of color by the number of outcomes
2: So since there are 4 colors and twice means 2.
3: 4 divided by 2 = 2% chances.
Hope this helps.
Of the cones recently sold by an ice cream shop, 3 had cookie dough ice cream and 15 had other flavors. What is the experimental probability that the next cone sold will have cookie dough ice cream?
Write your answer as a fraction or whole number.
Answer:1/6
Step-by-step explanation:
15+3 =18
[tex]\frac{3}{18}[/tex] = 1/6
Josephine is opening a retail shoe store and has developed this graph to represent her projected revenue, costs, and profit. Which two
sentences correctly interpret the graph?
20.000
revenue
Dollars
costs
profits
50
Profits increase until the price of the shoes reaches $22.
Costs decrease until the price of the shoes reaches $22,
Answer:
Profits increase until the price of the shoes reaches $22.
There are more prices with positive revenues than positive profits.
Step-by-step explanation:
In the picture attached, the problem is shown.
The first sentence is true because the profit curve has a maximum at $22.
The second sentence is true because the profit is computed as follows:
profit = revenue - cost
and cost decreases as the price increase; therefore, there are positive revenues with negatives profits.
The two sentences which correctly interpret the graph include:
Profits increase until the price of the shoes reaches $22.There are more prices with positive revenues than positive profits.What is a Graph?This is defined as a pictorial representation of numbers or variables in an organized manner.
The profit curve has a maximum at $22 which makes statement 1 correct while from the graph we can also deduce that there are more prices with positive revenues.
Read more about Graph here https://brainly.com/question/11539624
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