3 years ago

Can someone please help me for question 9, 10, 11, 12, and 13?

Mathematics

1 answer:

Furkat [3]3 years ago

5 0

Answer:

Step-by-step explanation:

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3 time the sum of a number and 5

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The equation would be 3(x + 5)

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2 years ago

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What Is a area with dimensions 1 unit times 1 unit

Ludmilka [50]

Area is length x width so if the dimensions are both 1,
the area is $1^{2}$

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2 years ago

A rectangular swimming pool measures 14 feet by 30 feet. The pool is

Zolol [24]

Answer:

The total cost of resurface the path is $\$600$

Step-by-step explanation:

step 1

Find the area of the path

The area of the path is equal to the area of the path plus the swimming pool minus the area of the swimming pool

$A=(14+3+3)(30+3+3)-(14)(30)$

$A=(20)(36)-(14)(30)$

$A=300\ ft^{2}$

step 2

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Multiply the area of the path by $2 per square foot

$300*2=\$600$

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3 years ago

A car is traveling at 20.0 m/s, and the driver sees a traffic light. turn red. After 0.530 s (the reaction time), the driver app

slava [35]

Before the driver applies the brakes ( with the reaction time ):
d 1 = v0 · t = 20 m/s · 0.53 s = 10.6 m
After that:
v = v0 - a · t1
0 = 20 m/s - 7 · t1
7 · t1 = 20
t1 = 2.86 s
d 2 = v 0 · t1 - a · t1² / 2
d 2 = 20 m/s · 2.86 s - 7 m/s² · (2.86 s)²/2 = 57.2 m - 28.6 m = 28.6 m
d = d 1 + d 2 = 10.6 m + 28.6 m = 39.2 m
Answer: the stopping distance of a car is 39.2 m.

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3 years ago

A. The perimeter of a rectangle is twice the length plus twice the width. If L represents the length and W represents the width

vampirchik [111]

Perimeter P = 2L + 2W

b. P = 2*1010 + 2*1818 = 2020 + 3636 = 5656 inches

c. Area A = WL

d Area = 1010*1818 = 1836180 in^2

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3 years ago