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yarga [219]
3 years ago
7

Help pleaseeeeeee!!!!!!!

Mathematics
1 answer:
tigry1 [53]3 years ago
7 0

Answer:

a) 100π

Step-by-step explanation:

A = πr²

A = (10²)π

A = 100π

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Solve the equation. Check for extraneous solutions. Type your answers in the blanks. Show your work. |4x+3| = 9+2x
GaryK [48]

Answer:

Step-by-step explanation:

|4x + 3| = 9 + 2x

We see the absolute value so we have to consider 2 cases:

(1)

4x + 3 = -9 - 2x

6x = -12

x = -2

(2)

4x + 3 = 9 + 2x

2x = 6

x = 3

Let's plug in both results.

|4(-2) + 3| = 9 + 2(-2)

|-5| = 9 - 4

5 = 5

Therefore x = -2 is a solution

|4(3) + 3| = 9 + 2(3)

|15| = 9 + 6

15 = 15

Therefore x = 3 is also a solution.

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3 years ago
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LekaFEV [45]
First subtract 8.5 from both sides, then divide the -1.2 to get x by itself 


x=1.5
3 0
3 years ago
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Mashutka [201]

Answer:

B. y = 2x

Step-by-step explanation:

every y value is the value of x multiplied by 2

so that means y=2x

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5 0
2 years ago
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Sam collected six leaves to feed to his caterpillar collection if he wanted to split the leaves among seven cages how much shoul
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6÷7 is 0.857. maybe?
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3 years ago
a circle with a radius of 1 cm sits inside a 3cm x 3cm rectangle. What is the area of the shaded region (the rectangle is shaded
masha68 [24]

Answer:

The area of the shaded region is 5.86\ cm^{2}

Step-by-step explanation:

we know that

The area of the shaded region is equal to the area of the rectangle minus the area of the circle

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A=b^{2} -\pi r^{2}

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b=3\ cm

r=1\ cm

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substitute the values

A=3^{2} -(3.14)(1)^{2}

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5 0
3 years ago
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