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3 years ago

Help !!! 8th grade math

Mathematics

2 answers:

Ipatiy [6.2K]3 years ago

4 0

#2=4
#3=16
#4=64
#5=256

MrRa [10]3 years ago

3 0

4 16 64 256 hope this helps you

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What’s 35 divide by 4?

zheka24 [161]

Answer:

Step-by-step explanation:

35/4 = 8.75 or 8 3/4

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2 years ago

Consider the set of differences, denoted with d, between two dependent sets: 84, 85, 83, 63, 61, 100, 98. Find the sample standa

sveta [45]

Answer:

The sample standard deviation is 15.3.

Step-by-step explanation:

Given data items,

84, 85, 83, 63, 61, 100, 98,

Number of data items, N = 7,

Let x represents the data item,

Mean of the data points,

$\bar{x}=\frac{84+85+83+63+61+100+98}{7}$

$=82$

Hence, sample standard deviation would be,

$\sigma= \sqrt{\frac{1}{N-1}\sum_{i=1}^{N} (x_i-\bar{x})^2}$

$=\sqrt{\frac{1}{6}\sum_{i=1}^{7} (x_i-82)^2}$

$=\sqrt{\frac{1}{6}\times 1396}$

$=\sqrt{232.666666667}$

$=15.2534149182$

$\approx 15.3$

4 0

2 years ago

Help please some one

givi [52]

Answer:

i dont know im just doing this for the points

6 0

2 years ago

-7(-13+19) distributive property

Vanyuwa [196]

Answer:

-42

Step-by-step explanation:

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3 years ago

Find the surface area of this rectangular prism.

Alexeev081 [22]

Answer:

Surface area of the rectangular prism= $168 yards^2$

Step-by-step explanation:

Given Dimensions of the rectangular prism are:

$Length(L)= 9 yards\\\\Width(w)=2 yards \\\\Height(H)= 6 yards$

Surface Area of a rectangular prism=

$2(L*W+W*H+H*L)\\\\ =2(9*2+2*6+6*9)\\\\ =2(18+12+54)\\\\ = 2(84)\\\\$

= $168 yards^2$

The surface area of the rectangular prism is $168 yards^2$

5 0

3 years ago