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nlexa [21]
3 years ago
12

Find the missing variable for the following direct variation k=3;(9,y)

Mathematics
1 answer:
WINSTONCH [101]3 years ago
5 0

Answer:

Y =ec2

Step-by-step explanation:

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Please help me! Thanks
Yuki888 [10]

Answer:

The answer is D. 22

Step-by-step explanation:


4 0
3 years ago
Square ABCD is dilated by a scale factor of 2 with the center of dilation at the origin to form square ABCD . What are the coord
kobusy [5.1K]

Answer:

B'(16,14)

Step-by-step explanation:

In square ABCD,  A(2,7) C(8,1) D(2,1). First, find the coordinates of the vertex B. From the attached diagram you can see that CD=6 units and is parallel to the x-axis, AD=6 units and is parallel to the y-axis. So, B(8,7).

The origin O is the center of dilation, 2 is the scale factor. The rule of the dilation is

(x,y)→(2x,2y)

Thus,

B(8,7)→B'(16,14) (see attached figure).

8 0
3 years ago
Solve equation 1/2(4d - 2) = d + 5
kogti [31]
The answer is d=6 i can show my work in the comments if you need it
7 0
3 years ago
Read 2 more answers
How many moles of hydrogen, H2, are needed to react with 2.0 moles of nitrogen, N2
Ber [7]
The coefficients DO NOT represent mass. Moles to mole ratios in a balanced chemical reaction are equivalents. Example 1: 3 H2 (g) + N2 (g) → 2 NH3 (g) tells us that 1 mole of nitrogen will stoichiometrically react with 3 moles of hydrogen to theoretically (ideally) produce 2 moles of ammonia.
6 0
3 years ago
The length of a rectangle is twice its width.
mestny [16]

Answer:

<h3>The answer is 60cm</h3>

Step-by-step explanation:

Perimeter of a rectangle = 2l + 2w

Area of rectangle = l × w

where

l is the length

w is the width

From the question

The length is twice its width is written as

l = 2w

Substitute this into the formula for finding the area of the rectangle

Area = 200 yd²

200 = 2w²

Divide both sides by 2

w² = 100

Find the square root of both sides

width = 10cm

Substitute this value into l = 2w

That's

l = 2(10)

length = 20cm

Perimeter of the rectangle is

2(20) + 2(10)

= 40 + 20

<h3>= 60cm</h3>

Hope this helps you

7 0
4 years ago
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