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3 years ago

Simplify 13 – 8x – 10 + 5x 3 – 3x 3 – 2x 2x – 3 1

2 answers:

jeka943 years ago

5 0

13−8x−10+5x3−3x3−2x2x−31=−8x−28

sp2606 [1]3 years ago

3 0

It's 3 - 3x

13-10= 3
-8x+5x= -3x

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The area of the shaded region to the nearest tenth is __________.

goldfiish [28.3K]

Answer: 380 ft^2

Step-by-step explanation:

Length of sides of square=25

Diameter of semicircle=25

Radius=r=25/2=12.5

π=3.14

Area of square=length x length

Area of square=25 x 25=625

Area of semicircle=0.5 x π x r x r

Area of semicircle=0.5 x 3.14 x 12.5 x 12.5

Area of semicircle=245.3125

Area of shaded portion=area of square - area of semicircle

Area of shaded portion=625-245.3125

Area of shaded portion=379.6875

Area of shaded portion=380ft^2

approximately

4 0

3 years ago

If f ( x ) = 3x² - 5x + 7 , Show that f ( -1 ) = 3 f ( 1 ) . Tysm :')

Lelechka [254]

Solution :

3x² - 5x + 7

put x = -1

3(-1)² - 5(-1) + 7

3(1) + 5 + 7

3 + 12

Now, put x = 1

3(1)² - 5(1) + 7

3(1) - 5 + 7

3 + 2

here :

f(-1) = 15

f(-1) = 3(5)

f(-1) = 3 f(1)

4 0

2 years ago

78 round to the nearest tenth

LenaWriter [7]

78 rounded to the nearest tenth is 80

3 0

3 years ago

Only people who know the answer

polet [3.4K]

Answer:

156ft of material.

Step-by-step explanation:

Since the garden path borders the garden and is 3 feet wide, it increases the side lengths of his garden by 3 feet on each side. Then we just find the perimeter using the new values:

$P=36+36+42+42=156$

If this helped, a brainliest answer would be greatly appreciated!

5 0

2 years ago

Please show how you solved the problem. 4a - 14 = 7a - 8

lianna [129]

4a - 14 = 7a - 8

4a - 7a = 14 -8

-3a = 6

a = 2

ok done. Thank to me :>

4 0

2 years ago

Read 2 more answers