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katovenus [111]
3 years ago
11

Pl help it’s for a grade

Mathematics
2 answers:
Virty [35]3 years ago
5 0

Answer:

r^{2}+6r+9=(r+3)^{2}  \\m^{2}-10m+25=(m-5)^{2}

Step-by-step explanation:

Only !

frosja888 [35]3 years ago
4 0

Answer:

A,d,e not sur tho

Step-by-step explanation:

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Evaluate this power with a base that is a negative fraction. (−1/4 )^2
Tomtit [17]

\left(-\dfrac 1 4\right)^2 = (-1)^2 \cdot \dfrac{1}{4^2} = \dfrac{1}{16}

Answer: 1/16

6 0
4 years ago
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olga_2 [115]

Answer:

2.6 and 5.4 are both the same sign, he should add them and then take that negative sign from (-5.4), so the answer would be -8.0.

5 0
3 years ago
find the measure of the central angle of a circle if it's minor are length is 14π and the radius is 18 inches
MrMuchimi

Step-by-step explanation:

Length of arc of a circle is given as:

l =  \frac{ \theta}{360 \degree}  \times 2\pi \: r \\  \\  \therefore \: 14\pi = \frac{ \theta}{360 \degree}  \times 2\pi \:  \times 18 \\  \\ \therefore \:\theta =  \frac{14\pi \times \: 360 \degree }{2\pi \:  \times 18} \\  \\ \therefore \:\theta =  \frac{7 \times \: 360 \degree }{18}  \\  \\ \therefore \:\theta =  7 \times \: 20 \degree \\  \\  \huge \red{ \boxed{\therefore \:\theta =  140 \degree}}

Thus, the measure of central angle is 140°.

7 0
3 years ago
Karla's jewelry box is shaped like a rectangular prism. The bottom surface of the box has an area of 65 square inches. The heigh
koban [17]

Answer:

780  cubic inches

Step-by-step explanation:

Step one:

Given data

The bottom surface of the box has an area of 65 square inches.

Already given an area and a height of 12 in

we proceed to find the volume by multiplying Area and height

Required

The volume of the box

Volume= Area* height

Step two:

Volume= 65*12

Volume = 780  cubic inches

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3 years ago
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What do you mean by that
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