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Maurinko [17]
3 years ago
10

Josie made a 75 on her first quiz in math. On her second quiz she made a 90. What was the

Mathematics
1 answer:
jenyasd209 [6]3 years ago
6 0

Answer:

15%

Step-by-step explanation:

90-75=15

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√6x^2+4x when x=−6. I can't understand this question I really need help it's due in like 2 mins.
VLD [36.1K]

Answer:

Substitute the value of the variable into the equation and simplify.

Exact Form:

36

√

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Step-by-step explanation:

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3 years ago
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Can someone match these up?
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Answer:

(-7)(-1.2) = 8.4

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Step-by-step explanation:

Multiplication.

4 0
3 years ago
The first two terms of geometric sequence are shown.
Ostrovityanka [42]

A geometric sequence follows a pattern with a common ratio.

Find the ratio between 3 and 9

If you multiply 3 by 3 the answer would be 9.

The common ratio is 3.

Now multiply 9 by 3 to get 27.

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3 years ago
Triangle ABC is rotated 45° counterclockwise about vertex A to obtain triangle XYZ. If the m∠ABC is equal to 30°, what is the m∠
prohojiy [21]

Answer:

B,30

Step-by-step explanation:

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3 years ago
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The area of a rectangular glass slab is 80 square centimeters and its perimeter is 36 centimeters. If the length and width of th
netineya [11]

First, you have to find out the values of the length and width.

Let l = length and w = width.

Set up your equation for area: l * w = 80

Set up your equation for perimeter: 2l + 2w = 36

We can use substitution for this problem, so find out the value of l or w. In this case, I will use the first equation to find out the value of l.

(Divide w on both sides) l = 80 / w

Since I know that l = 80 / w, I can substitute it into the second equation.

2l + 2w = 36, and l = 80 / w

= 2 (80/w) + 2w = 36

Simplify the equation.

= 160/w + 2w = 36

Get rid of the w in the denominator by multiplying the entire equation by w.

= ( 160/w + 2w = 36 ) * w

= 160 + 2w^{2} = 36w

= 2 ( w - 8 ) ( w - 10 )

The solutions for width (w) is 8 or 10. Then, you can use both 8 and 10 as your length and width, either or is fine. Multiply by 4 for each of those values and you get 8 x 4 = 32 and 10 x 4 = 40. The new perimeter would be 2(32) + 2(40) =

a. 144 cm

Hope this helped you! Let me know if there are any confusions :)


4 0
3 years ago
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