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Kazeer [188]
2 years ago
15

Which is equivalent to 4(x + 5) 4x + 9 4x + 20 4x + 5

Mathematics
2 answers:
Stells [14]2 years ago
8 0
4x+20 is the correct answer
PilotLPTM [1.2K]2 years ago
3 0
The answer is , 4x+20
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What is the approximate circumference of a circle that has a radius of 6 units? Round your answer to the nearest tenth.
Angelina_Jolie [31]

Answer:

37.7 units²

Step-by-step explanation:

the formula for circumference of a circle is πr²

π x 6² = 37.69 ≈37.7²

8 0
3 years ago
Given a 30-60-90 triangle with a long<br> leg of 9 in, determine the length of the<br> hypotenuse.
aniked [119]

Answer:

10.38 in

Step-by-step explanation:

Long side would be opposite to 60°.

Since, side opposite to 60° is root 3 upon 2 times of hypotenuse.

9 =  \frac{ \sqrt{3} }{2} \times hypotenuse \\  \\ hypotenuse =  \frac{9 \times 2}{ \sqrt{3} }  \\  =  \frac{18}{ \sqrt{3} }  =  \frac{18 \sqrt{3} }{3}  = 6 \sqrt{3}  = 6 \times 1.73 \\   \:  \:  \: \red{ \bold{hypotenuse = 10.38 \: in}}

8 0
3 years ago
X + y + z = 7<br> 2x − y + z = 7<br> 3x − z = 2
soldi70 [24.7K]
<span>A) X + y + z = 7
B) 2x − y + z = 7

C) 3x − z = 2
</span><span>C) z = 3x -2 Substituting this into equations A) and B)

</span>
<span>A) X + y + 3x -2 = 7
B) 2x − y + 3x -2 = 7 Adding A and B
3x + 6x -4 = 14
9x = 18
x = 2
</span>Since x = 2 then
<span>A) 2 + y + 6 -2 = 7
</span><span>A) y  = 1

</span>A) X + y + z = 7
<span>A) 2 + 1 + z = 7</span>
z = 4

7 0
3 years ago
Clarence works at least 5 hours but not more than 7 hours. He earns $11.60 per hour. The function f(t)=11.6tf(t)=11.6t represent
qaws [65]
I would say all real numbers between 58 to 81.2 inclusive
3 0
3 years ago
Solving Quadratic Equations-<br> Factorable<br> 2x^2 - 7x -15= 0
Pepsi [2]

Step-by-step explanation:

2{x}^{2}  - 7x - 15 = 0

can be factored to

(2x + 3)(x - 5) = 0

Hence,

x = 5

or

x =  -  \frac{3}{2}

6 0
3 years ago
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