Please help with this question!!

Please Help With This Question!!

Answers

Answer 1

The value of y is 3 if the value of x is 4 in the linear equation with two variables.

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have:

Two linear equations in two variables x and y

x + y = 7

x = 4

Plug x = 4 in the equation x + y = 7, we get:

4 + y = 7

y = 7 - 4

y = 3

Thus, the value of y is 3 if the value of x is 4 in the linear equation with two variables.

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Answer 2

Answer:

The value of y is 3 if the value of x is 4 in the linear equation with two variables.

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have:

Two linear equations in two variables x and y

x + y = 7

x = 4

Plug x = 4 in the equation x + y = 7, we get:

4 + y = 7

y = 7 - 4

y = 3

Step-by-step explanation:


Related Questions

While walking to school you pass a barn with a silo. Looking up to the top of the silo you estimate the angle of
elevation to the top of the silo to be about 14°. You continue walking and find that you were around 40 m from
the silo. What is the height of the silo?

Answers

Answer:

9.97 meters

Step-by-step explanation:

The silo is one leg of a right triangle    the other leg is the distance from the silo

for a right triangle    tan = opposite side / adjacent side

                                 tan(14) = height/40

                                40 tan 14 = height = 9.97 m

Function g can be thought of as a scaled version of f ( x ) = ∣ x ∣

Answers

Using translation concepts, it is found that the equation for function g(x) is given by:

[tex]y = -\frac{2}{3}|x|[/tex]

What is a translation?

A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.

The parent function is given by:

f(x) = |x|.

Researching the problem on the internet, function g(x) was reflected over the x-axis, and compressed by a factor of 2/3, hence it is multiplied by -2/3(negative due to the reflection), and the equation for function g(x) is given by:

[tex]y = -\frac{2}{3}|x|[/tex]

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Decide if the situation involves permutations, combinations, or neither. explain your reasoning.
the number of ways you can choose 5 beach towels from a selection of 8 to bring on vacation

Answers

The number of ways you can choose 5 beach towels from a selection of 8 to bring on vacation is a combination problem

Permutation and combination

Permutation has to do with arrangement while combination has to do with selection.

When choosing an object from other pool of object, we will have what is called combination.

From the given question, we are told that the number of ways you can choose 5 beach towels from a selection of 8 to bring on vacation, since they are selecting, hence the situation involves combination.

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(a) state the value of cos(30°)
(b) state the value of sin(30°)

Answers

Square root 3/2
1/2

1. New school desks were made for your school for the upcoming school year. The total
cost of making these desks is related to the amount that are made. This is shownin the
table below:

pls help its 100 points

Answers

Take 2 points

(21,1517)(47,2609)

#a

Find slope

m=2609-1517/47-21m=1092/26m=$42

#b

Find equation y inetercept is our answer

y-1517=42(x-21)y-1517=42x-882y=42x+635

b=635

#c

Put x=250

So

y=42(250)+635y=$11135


A survey asked a sample of vacationers how far they drove to get to their destination. What is the margin of
error if the interval estimate is (200 miles, 250 miles)?

What is the length of the interval?

Answers

The margin of error for the interval (200 miles, 250 miles) is 25 miles.

What is an equation?

An equation is an expression that shows the relationship between two or more variables and number.

The confidence interval = mean (m) ± margin of error (e) = m ± e

Hence:

m + e = 250    (1)

m - e = 200    (2)

From the both equations:

m = 225, e = 25

The margin of error for the interval (200 miles, 250 miles) is 25 miles.

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The sides lengths 4, 6, 9 can be used to form the sides of a triangle.

Answers

Answer: Yes

Step-by-Step Explanation:

We can simply use the Triangle Inequality Theorem which states that the sum of 2 sides of a triangle is greater than the third side.

Therefore,
=> 4 + 6 = 10 (Greater than 9)
=> 6 + 9 = 15 (Greater than 4)
=> 4 + 9 = 13 (Greater than 6)

Hence the side lengths 4, 6, 9 can be used to form the sides of a triangle.

pls help w b. also not sure if what ive written down is right

Answers

Answer:

See below

Step-by-step explanation:

b) 200 ft = -16 (t-2)^2  + 400

      200 / 16 = (t-2)^2

           sqrt (12.5 ) = t-2

              2 + sqrt (12.5)  = t  

Find the indicated missing angle measure. Solve for the value of 0. Round to the nearest whole degree.

Answers

Answer:

67 degrees

Step-by-step explanation:

Calculator!

solve for x !
[tex]\longrightarrow\bold{4x {}^{2} + 10x + 4 = 0}[/tex]

ty! ~​

Answers

Step-by-step explanation:

We could easily solve this by factoring.

Given eqn:

[tex]\rm{4x ^{2} + 10x + 4 = 0}[/tex]

Solution:

Factor left side:

[tex] = > 2(2x + 1)(x + 2) = 0[/tex]

Write the factors to 0 to get our solution:

[tex] = > 2x + 1 = 0[/tex]

[tex] = > \boxed{ x = - \cfrac{1}{2} }[/tex]

or else,

[tex] = > x + 2 = 0[/tex]

[tex] = > \boxed{ x = - 2}[/tex]

[tex] \rule{225pt}{2pt}[/tex]

Find the Lowest Common Multiple of a and b.

Answers

Answer:

181104

Step-by-step explanation:

2 x 2 x 2 x 2 x 3 x 7 x 7 x 7 x 11 = 181104

Answer:

181104

Step-by-step explanation:

2 x 2 x 2 x 2 x 3 x 7 x 7 x 7 x 11 = 181104

Please help me on this!

Answers

The correct statement is the first one. g(x) exceeds f(x) by 72.

Which statement is true?

By looking at the table, we can see that f(x) is a linear function and g(x) is an exponential function, such that:

f(x) = 10 + 3x

g(x) = (1/2)^x

By evaluating these functions in x = -6 we get:

[tex]f(-6) = 10 - 3*6 = -8[/tex]

[tex]g(-6) = (1/2)^{-6} = 64[/tex]

The difference is:

g(-6) - f(-6) = 64 + 8 = 72

Then the correct option is the first one, g(x) exceeds f(x) by 72.

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Help its timed 35 points

Answers

Answer:
x = 36
Angle 1 = 108
Angle 2 = 72

Explanation: Angle 1 & Angle 2 are supplementary, equaling to 180 You can just add them both and then equal to 180.

3x + 72 = 180

-11 2/3 x (-4 1/5) help I need it

Answers

Answer:

Step-by-step explanation:

[tex]-11 \frac{2}{3} x -4\frac{1}{5} =[/tex]

First we change the mix number fractions into a improper fraction

[tex]\frac{-11*3+2 }{3} x- \frac{4*5+1}{5} =[/tex]

[tex]\frac{-33+2}{3} x- \frac{20+1}{5} =[/tex]

[tex]\frac{-31}{3}x - \frac{21}{5} =[/tex]

Give both fractions the common denominator 15 and subtract the fractions

[tex]\frac{-31x*5}{15} - \frac{21*3}{15}=[/tex]

[tex]\frac{-155x -63}{15}[/tex]

Write seven tenths as a decimal

Answers

Answer:

seventh tenths as a decimal are 0.7

how many times larger than 3*10^2 is 12*10^4

Answers

Hey there!

3 * 10^2

= 3 * 10 * 10

= 3 * 100

= 300


AND

12 * 10^4

= 12 * 10 * 10 * 10 * 10

= 12 * 100 * 100

= 12 * 10,000

= 120,000


SIMPLIFYING the ANSWER


120,000 - 300

= 119,700

≈ 100,000


Therefore, your answer should be:

100,000


Good luck on your assignment & enjoy your day!



~Amphitrite1040:)

A salsa recipe uses green pepper, onion, and tomato in the extended ratio 1 : 5 : 7. How many cups of onion are needed to make 117 cups of salsa?

Answers

Answer:

We need 45 cups on onion

Step-by-step explanation:

green pepper : onion: tomato: total

1                          5              7        13

We have 117 total so divide by 13

117/13 = 9

Multiply each number by 9

green pepper : onion: tomato: total

1*9                        5*9        7*9        13*9

9                            45         63           117

We need 45 cups on onion

The hypotenuse of a right triangle measures 2 square root 15 centimeters and its shorter leg measures 2 square root 6
centimeters.

What is the measure of the larger acute angle of the triangle? Round your answer to the nearest
tenth of a degree.

Answers

Answer:

  50.8°

Step-by-step explanation:

The mnemonic SOH CAH TOA is intended to remind you of the relationship between side lengths and trig functions for a right triangle. Here, you are given the short side and the hypotenuse, and asked for the largest acute angle.

__

The short side is adjacent to the largest acute angle, so the relevant relation is ...

  Cos = Adjacent/Hypotenuse

  cos(β) = (2√6)/(2√15) = √0.4

The angle measure is found using the inverse cosine function:

  β = arccos(√0.4) ≈ 50.8°

The larger acute angle is about 50.8°.

Which equation can be used to find the surface area of the cylinder? a cylinder with a radius of 4 inches and height of 16 inches. s = 2 pi (4) squared 2 pi (4) (16) s = 2 pi (8) squared 2 pi (8) (16) s = 2 pi (16) squared 2 pi (16) (4) s = 2 (4) squared 2 (4) (16)

Answers

The equation we can use to find the surface area of the cylinder is: 2π(4)(16 + 4).

What is the Surface Area of a Cylinder?

Surface area of a cylinder = 2πr(h + r), where h is the height and r is the radius of the cylinder.

Given the following:

Radius = 4 in.Height = 16 in.

Equation to find the surface area of the cylinder = 2π(4)(16 + 4)

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please help me solve this

Answers

Answer:

1364.26 mm^2

Step-by-step explanation:

If this is correct: side length a =

30

side length b =

10

side length c =

24

prism height h =

18

then the answer would be 1364.26 mm^2

1 is greater than w, and -5 is less than w.
Use w only once in your inequality.

Answers

Answer: As an inequality —> -5 < w < 1

Mr. Graham invested some of his $18,000 in bonds that made a 5% profit and the rest in bonds that made a 12% profit. If the profit on the 12% bonds was $885 more than the profit on the 5% bonds, how much did Mr. Graham
invest in the 5% bonds?

Answers

Answer:

$7500

Step-by-step explanation:

Let investment in 5% bond be x

(18000 - x) * 12% - x * 5% = 885

18000*12 - 12x - 5x = 88500

216000 - 88500 = 17x

x = 7500

14 ft
16 ft
5 ft
What is the Surface Area??

Answers

Answer:

0.805ft

Step-by-step explanation:

she determines the surface area of material she needs to create

if you run for 30 mintes at a speed of 8 miles per hour how many feet wpuld you hav erun

Answers

Answer:

not sure if this is correct but i tried (1267200 feet)

Answer:

21120 ft

Step-by-step explanation:

We need to change 8 miles per hour to feet per minute

8 miles      5280 ft      1 hour

----------- * ----------      * ----------

hour          1 mile          60 minutes

704 ft/ minute

Now multiply by 30 minutes

704 ft / minute * 30 minutes =21120 ft

Can someone solve number 1 only

Answers

Answer:

24.00

Step-by-step explanation:

hope this helps

What is the sum of the first 45 terms of the sequence?
-282,-266,-250,-234,...
S45 =

Answers

Use the attachment (It has a full explanation and answer).

Please help will mark brainliest 5 points

Answers

Answer:

D. Graph D

Step-by-step explanation:

First, off me know that that equation is in slope-intercept form.

Therefore, your y-intercept is (0,1)

Then you need to find the slope by using two points on a graph and using the y2-y1/x2-x1 equation.

Now you need to pay attention to the sigh. It's [tex]\leq[/tex].

That means it is greater than or equal to ur y-intercept, it must be shaded do the side of numbers greater to 1 (ur y-intercept.)

Giving you D.

Answer is D

The line is solid and on the right side

Out of 90 scientists who study dinosaurs, 30 study the T-Rex, 22 study the Brontosaurs and 10 study both. How many of this group of scientists studies another speices of dinosaurs?

Answers

Answer:

it 152 u have to add 3 time like this

90+10+30+ it gives you 152

Step-by-step explanation:

hope this works or help

eathan answer 80% correctly on his history test he correctly answers 32 enter the amount of questions on his test

Answers

Answer:

40 questions.

Step-by-step explanation:

By proportion:

80 %      is equivalent to  32 questions

So 100%  ..   ..   ..  ..   ..  ..   (32/80) * 100

= 32 * 5/4

= 160/4

= 40

Answer:

40

Step-by-step explanation:

80/100=32/x

You can also set this up with a diagram.

x=40

Is π^2 greater or less than 7.2?

Answers

Answer:

less than

Step-by-step explanation:

Well pi divided by 2 is 1.57 and you need to figure out if 7.2 is greater than or less than pi^2 aka 1.57 so theres your ansewr

Answer:

greater

Step-by-step explanation:

π = 3.1425.....

π > 3

π^2 > 9 > 7.2

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