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2 years ago

Find the value of x A. 11.67° B. 42.5° C.18° D.20°

Mathematics

2 answers:

Julli [10]2 years ago

7 0

Answer:

D. 20°

Step-by-step explanation:

The entire angle = 90 degrees you can tell that from the corner indicator

Set the two expressions equal to 90

(3x+10) + (x) = 90

Combine like terms

4x + 10 = 90

Subtract 10 from both sides to cancel it out

4x = 80

Divide each side by 4

x = 20

Check it by substituting x for 20

3(20) + 10 = 70 x = 20 70 + 20 = 90

Paha777 [63]2 years ago

7 0

Answer:

D. 20degrees

Step-by-step explanation:

This is a Complementary Angle so it will equal 90.

3x + 10 + x = 90

4x + 10 = 90

90 - 10

= 80

4x = 80

80 / 4

x = 20

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The last time brea played softball she hit the ball 35 percent of the times she was at bat based on this information how many ti

WITCHER [35]

Answer:

The answer to your question is 7 times

Step-by-step explanation:

Data

Percent of accuracy = 35%

Times she is at bat = 20

Times she hit the ball = ?

Process

1.- Use proportions to solve this problem

20 times will be the 100% because is the total number of times she is at bat.

20 times ------------------ 100%

x ------------------ 35%

x = (35 x 20) / 100

x = 700 / 100

x = 7

2.- Conclusion

From 20 times she is at bat, she will hit the ball 7 times.

4 0

3 years ago

Suppose that the functions r and s are defined for all real numbers x as follows.

mixas84 [53]

ANSWER

Given

$r(x) = x - 1$

and

$s(x) = 3 {x}^{2}$
ANSWER TO QUESTION 1

$(r + s)(x) = r(x) + s(x)$

$(r + s)(x) = x - 1 + 3 {x}^{2}$

$(r + s)(x) = 3 {x}^{2} + x - 1$

ANSWER TO QUESTION 2

$(r \times s)(x) = r(x) \times s(x)$

$(r \times s)(x) = (x - 1) \times 3 {x}^{2}$

$(r \times s)(x) = 3 {x}^{3} - 3 {x}^{2}$

ANSWER TO QUESTION 3

$( r - s)(x) = r(x) - s(x)$

$( r - s)(x) = x - 1 - 3 {x}^{2}$

$( r - s)( - 3) = (- 3) - 1 - 3 ({ - 3}^{2} )$

$( r - s)( - 3) = - 4 - 3 \times 9$

$( r - s)( - 3) = - 4 - 27 = - 31$

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3 years ago

If AUVW~ ARST, what is the value of x?

Scrat [10]

Answer:120

Step-by-step explanation:

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3 years ago

4/5(2x+5)−4=1 what is the value of x?<br> A. 5/8<br> B.1 1/4<br> C.1 3/5<br> D. 3 1/5

Novay_Z [31]

Answer:

B.1 1/4