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nikitadnepr [17]
3 years ago
10

Simplify the expression: 2(3y - 2) + 9

Mathematics
1 answer:
damaskus [11]3 years ago
3 0

Answer:

6y+5

Step-by-step explanation:

2 *3y=6y

2*-2=-4

but -4 +9 = +5

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Arnold records the number of chirps per minute (x) that crickets make
Sauron [17]

Answer:

X=0 the temperatures is 40

Step-by-step explanation:

y=1/4x +40

x=0

y=1/4*0+40

y=0+40

y=40

7 0
3 years ago
What’s the area of 36 square meters perimeter of 30 meters what’s the width and length of those?
Anvisha [2.4K]
≠ means not equal to
L x w = 36
2L + 2w = 30

1. Find the multiples of 36

1 and 36
2 and 18
3 and 12
4 and 9
6 and 6

2. Figure out which set of numbers multiplied by 2 equals 30.

For 1 and 36:
2(1) + 2(36) = 2 + 72 = 74 ≠ 30

For 2 and 18:
2(2) + 2(18) = 4 + 32 = 36 <span>≠ 30

For 3 and 12:
2(3) + 2(12) =  6 + 24 = 30

So your answer is 3 and 12</span>
3 0
3 years ago
Click to see the question
Vikki [24]

A and C is the answer

hope you'll learn from your teacher how?

6 0
3 years ago
Read 2 more answers
A 12 ft. ladder is leaning against a house. The ladder makes a 60° angle with the ground. Use special right triangles to find ho
OlgaM077 [116]

Given:

The length of the ladder  = 12 ft

The angle of ladder with ground = 60 degrees

To find:

How far up the building the ladder will reach.

Solution:

Using the given information draw a figure as shown below.

We need to find the vertical distance between the top of ladder and the ground.

Let x be the required distance.

In a right angle triangle,

\sin \theta=\dfrac{Perpendicular}{Hypotenuse}

In the below triangle ABC,

\sin A=\dfrac{BC}{AC}

\sin 60^\circ=\dfrac{x}{12}

\dfrac{\sqrt{3}}{2}=\dfrac{x}{12}

Multiply both sides by 12.

\dfrac{\sqrt{3}}{2}\times 12=x

6\sqrt{3}=x

Therefore, the ladder will reach 6\sqrt{3} ft far up the building.

4 0
2 years ago
The ratio of the height of two similar cylinders is 4 to 3 What is the ratio of their volumes
ASHA 777 [7]

Answer:

  64 : 27

Step-by-step explanation:

When using scale factors

Length = scale factor

Area = scale factor squared

Volume = scale factor cubed

The ratio is 4:3

The ratio of the volume is 4^3 : 3^3

                                            64 : 27

7 0
3 years ago
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