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Lubov Fominskaja [6]
3 years ago
14

Consider the sequence of steps to solve the equation:

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
6 0

Answer:

Well, technically it's the distributive property, but since that's not on here, and technically it's multiplying so. Multiplying property.

Step-by-step explanation:

Well, technically it's the distributive property, but since that's not on here, and technically it's multiplying so. Multiplying property.

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The area of a rectangle is 14 m2 , and the length of the rectangle is 3 m less than double the width. find the dimensions of the
muminat
Width =3.5, length = 4

Let's make a few equations to summarize what we know.:
a = 14
l = 2w -3
a = wl

Now let's substitute the expression for l into the expression for area and solve.
a = w(2w - 3)
a = 2w^2 - 3w
14 = 2w^2 - 3w

0 = 2w^2 - 3w - 14

which factors into
(2w - 7) (w + 2)

Solving for w
2w - 7 = 0
2w = 7
w = 3.5

w+2 = 0
w = -2

So w can be either 3.5 or -2. Since a negative width doesn't make sense, w = 3.5

Let's verify
w = 3.5
l = 2w - 3
l = 2*3.5 - 3
l = 7 - 3
l = 4
a = wl
a = 3.5 * 4
a = 14

So the width is 3.5 and the length is 4.

3 0
3 years ago
Juana scored higher than 85.31% of the students. What was her score?
kirill [66]

Answer:

= 14.7 percent

Step-by-step explanation:

= 100 - 85.3

= 14.7 percent

8 0
3 years ago
Chipper had 189 hits in 572 at bats calculate chippers batting average for season by dividing the number if hits by the number o
lord [1]

Answer:

0.330

Step-by-step explanation:

Divide the number of hits (189) by the number of bats (572)

189/572=0.330

8 0
3 years ago
Suppose in a math class of 22 students, 14 are boys and 8 are girls. On the final exam, 4 boys and 6 girls made an A grade. 1) I
DerKrebs [107]

Answer:

1 is A 2 Is B

Step-by-step explanation:

I hope this helps

5 0
3 years ago
What is the slope of the line that passes through the points (-2,7) and (2,-5) in simplest form ?
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Its m=\dfrac{\Delta y}{\Delta x}=\dfrac{7-(-5)}{-2-2}=\dfrac{12}{-4}=\boxed{-3}.

Hope this helps.

6 0
3 years ago
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