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UNO [17]
2 years ago
11

Which graph shows the solution to the inequality -3x-7 <20?

Mathematics
1 answer:
Yuri [45]2 years ago
8 0

Answer:Great selection of modern and classic books waiting to be discovered. All free and available ... the house of seven gables penguin readers level 1 · typography ... solutions manual engineering electromagnetics by inan ... understanding business 10th edition exam 3 ... toyota 5l engine manual ... turbo pascal 7 0 4th edition.

Step-by-step explanation:

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Which numbers are factors of 40? select all that apply. 4 10 7 80 submit?
lutik1710 [3]
The factors of 40 from that list are 4, 8. and 80. A factor needs to be able to be divided by 40.

8 0
3 years ago
A rectangle is 64 cm long 40 cm wide find is area and perimeter​
kow [346]

Answer:

Assuming the length to be x and the width to be y.

Since the area is 64cm, hence

x*y = 64 (equation 1)

Since the perimeter is 40cm, hence

x + x + y + y = 40

2x + 2y = 40

2(x + y) = 2(20)

x + y = 20 (equation 2)

Hence by using simultaneous equation,

x = 20 - y (equation 3)

Substituting equation 3 into equation 1, we get

(20-y)*y=64

20y-y^2=64

Tidying up the equation,

y^2 - 20y + 64 = 0

By using factorisation,

(y-16)(y-4)=0

y=16 or y=4

By substituting y=16 into equation 1,

x*16=64

x = 4

By substituting y = 4 into equation 1,

x*4=64

x=16

Therefore,

The length is 4 cm while the width is 16 cm.

OR

The length is 16 cm while the width is 4cm.

Hope this helps!!

7 0
2 years ago
Find the circumference of a circle if the radius is 10 feet.
maria [59]

c = 2\pi r
2×3.14×10= 62.8

C ≈ 62.83

4 0
3 years ago
The ratio of the width to the length of a rectangle is 3:7. The shorter side is 9 inches long. What is the longer side and also
photoshop1234 [79]

shorter side : longer side = 3 : 7


Equate 3 parts tp 9 inches:

3 parts = 9 inches


Find 1 part:

1 part = 9 ÷ 3 = 3 inches


Find 7 parts:

7 parts = 3 x 7 = 21 inches


Area = Length x Width = 21 x 9 = 189 in²


Answer: The longer side is 21in and the area is 189 in²

3 0
3 years ago
Read 2 more answers
Simplify the expressions by combining like terms<br><br> 4r + 9r - 11r + 7r
konstantin123 [22]
9r
Explanation:
4r + 9r = 13r
13r-11r = 2r
2r + 7r = 9r
4 0
3 years ago
Read 2 more answers
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