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PSYCHO15rus [73]
3 years ago
7

PLEASE ANSWER + BRAINLIEST!!

Mathematics
1 answer:
Firdavs [7]3 years ago
6 0
The correct answer is B. (-1, 3) 



Hope this helps :)
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Sean used candle molds, as shown, to make candles that were perfect cylinders and spheres:
BaLLatris [955]
We calculate for the volumes of each of the wax needed for the candles through the equations presented below.

For cylinder:
                             V = πr²h
where V is volume, r is radius and h is height.

Substituting the known values,
 
                           V = (3.14)(3 in)²(6 in)
                            V = 169.56 in³

For sphere:

                         V = 4πr³/3
Substituting the known values,
                        V = 4(3.14)(3 in)³ / 3 = 113.04 in³

The difference between the two volumes,

                         difference of volumes = 169.56 in³ - 113.04 in³
                         <em>difference of volumes = 56.52 in³</em>

Thus, the answer to this item is the last choice. 
4 0
3 years ago
Please answer!!!! There is a screen shot attached!
pantera1 [17]
Radical 15 is an irrational number
7 0
3 years ago
The overall regression F-statistic tests the null hypothesis that:____.
AnnZ [28]

Answer:

A

Step-by-step explanation:

F test is a statistical method used to determine which models best fits the population from which the sample is derived. It is a ratio of two variances. Variance measure the rate of dispersion

The formula for calculating f-test = explained variance / unexplained variance

There are two hypothesis in an f test :

1. the  null hypothesis  - all slope coefficient are equal to zero

the alternative hypothesis : at least one of the slope coefficient is not equal to zero

8 0
2 years ago
What is (3+21)-4 divides by 2
katen-ka-za [31]
1. -4 times 3 and 21
2.add -12 and -84
3.-96 dived by 2
4 equals -48
3 0
3 years ago
Read 2 more answers
Pls help asap!! this is due really soon
s2008m [1.1K]

Answer:

EF=20

Step-by-step explanation:

EF is midsegment of the triangle so the equation is

AB/2=EF

7x-2/2=2x+8

7x-2=4x+16

7x-4x=16+2

3x=18

x=18/3

x=6

EF=2×6+8

=12+8

=20

6 0
2 years ago
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