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zvonat [6]
4 years ago
8

Can someone help me please:

Mathematics
1 answer:
elena-14-01-66 [18.8K]4 years ago
8 0
$819.20 is the answer considering each time the units increase by fours, it adds $204.80
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A circular railroad-crossing sign has a diameter of 30 inches. Which measurement is closest to the area of the sign?
marishachu [46]

Answer:

A is about 706.86 inches squared   hope this helps!   :)

Step-by-step explanation:

Using the formulas

A=πr2

d=2r

Solving forA

A=1

4πd2=1

4·π·302≈706.85835in²

8 0
3 years ago
Number 11 pleaseeee help
Natali5045456 [20]
A is the answer because if it is 2.50 each day then the answer is 2.50d
6 0
3 years ago
Read 2 more answers
translate this sentence into an equation. the product of janelles saving and 3 is 54 . use the variable j to represent janelles
gladu [14]
J+3=54
Janelles savings plus 3 is 54 ?
7 0
4 years ago
The area of a rectangle is given by the tri nominal y^2+4y-45. If the Length of the rectangle is y+9, what is the width of the r
motikmotik

Answer:

width = y - 5

Step-by-step explanation:

area = y^2 + 4y - 45

(y + 9)(y - 5)

8 0
3 years ago
Simplify (2x + 3)(x – 4) = ?
svlad2 [7]
<span>Solutions

1) Equation
</span>⇒ <span><span>(<span><span>2x</span>+3</span>)</span><span>(<span>x−4</span>)

</span></span>⇒<span><span>(<span><span>2x</span>+3</span>)</span><span>(<span>x+<span>−4</span></span>)
</span></span>⇒<span>(2x)(x)+(2x)(−4)+(3)(x)</span>+<span>(3)(−4)
</span>⇒2 x^{2} <span><span><span>−<span>8x</span></span>+<span>3x</span></span>−12
</span>⇒2 x^{2} <span><span>−<span>5x</span></span>−<span>12

Answer - </span></span>2 x^{2} <span>−5x−12</span><span>

</span>
7 0
4 years ago
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