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2 years ago

What is the value of x?

Mathematics

1 answer:

blsea [12.9K]2 years ago

3 0

Since these are supplementary angles (two angles which sum to 180°) we can say:

4x+x=180 combine like terms on left side

5x=180 divide both sides by 5

x=36°

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Please help rn thanks

Mama L [17]

9514 1404 393

Answer:

(b) (1, 1/6)

Step-by-step explanation:

The "unit rate" is always the y-value for x=1 when the relationship is proportional (as it is here).

That point is not specifically shown on the graph. It would be (1, 1/6).

8 0

2 years ago

MATH HELP ME ASAP PLEASE

elena55 [62]

Answer:

53lbs.

Step-by-step explanation:

If Kevin bought 3 20lbs. Bags of gravel he would have 60 lbs. of gravel. In the end he has 7 lbs. of gravel left he used 53 pounds.

Equations:

7+x=60 or 60-7=53 lbs.

8 0

2 years ago

Read 2 more answers

Sarah described the following situation:

ddd [48]

Step-by-step explanation:

This is an example of correlation because there is an obvious relationship between the two scenarios.

6 0

1 year ago

Read 2 more answers

The profit from a business is

GuDViN [60]

First of all we will understand the question!!

The question is saying that you are given a function and you have to find the value of x which will give the maximum profit... Lets solve it by finding the extrema using the vertex

 $\rm \: p(x) = - 5 {x}^{2} + 30x + 8$ 

Identify the coefficients a and b of the quadratic function

 $\rm \: p(x) = { - 5x}^{2} + 30x + 8 \\ \rm \: a = - 5 \: and \: b \: = 30$ 

Since a<0, the function has the maximum value at x, calculated by substituting a and b into x=-b/2a

$\rm \: x = \frac{30}{ 2 \times (- 5)}$

Solve the equation for x

$\rm \: x = 3$

The maximum of the quadratic function is at x=3

3 0

1 year ago

R2+2r-33=0 solve by completing the square

-BARSIC- [3]

R^2+2r-33=0 move constant to other side by adding 33 to both sides

r^2+2r=33 halve the linear coefficient, square it and add to both sides, in this case it is just one

r^2+2r+1=34 now the left side is a perfect square...

(r+1)^2=34 take the square root of both sides...

r+1=34^(1/2) subtract 1 from both sides

r=-1+34^(1/2) and -1-34^(1/2)

8 0

2 years ago