Ask question

Ask question

All categories

3 years ago

14

I Need Help!!! I’ll give brianliest and 20 points!!!

2 answers:

Greeley [361]3 years ago

8 0

I would go with d but I am not 100% sure

miskamm [114]3 years ago

7 0

I’m pretty sure it’s D, “Figures M and N are parallelograms.”

You might be interested in

Help me find Sample variance and standard deviation

AnnZ [28]

First, find the mean. You'll need it to compute the variance.

$\bar x=\displaystyle\frac15\sum_{i=1}^5x_i=\dfrac{21+10+6+7+11}5=11$

The variance of the sample is then computed with the formula

$s^2=\displaystyle\dfrac1{5-1}\sum_{i=1}^5(\bar x-x_i)^2=\dfrac{(21-11)^2+\cdots+(11-11)^2}4=\dfrac{71}2=35.5$

The standard deviation is the square root of the variance, so

$s=\sqrt{35.5}\approx5.958$

5 0

3 years ago

Find the value of x

Paladinen [302]

$\qquad \qquad \bf \huge\star \: \: \large{ \underline{Answer} } \huge \: \: \star$

x = 12°

$\textsf{ \underline{\underline{Steps to solve the problem} }:}$

$\qquad❖ \: \sf \:2x + 6 + 5x + 90 = 180$

[ by linear pair ]

$\qquad❖ \: \sf \:7x + 6 = 180 - 90$

$\qquad❖ \: \sf \:7x + 6 = 90$

$\qquad❖ \: \sf \:7x = 90 - 6$

$\qquad❖ \: \sf \:7x = 84$

$\qquad❖ \: \sf \:x = 84 \div 7$

$\qquad❖ \: \sf \:x = 12$

$\qquad \large \sf {Conclusion} :$

$\qquad❖ \: \sf \:x = 12 \degree$

7 0

2 years ago

Find the volume of this cone.<br> Use 3 for TT.<br> 5in<br> Tr2h<br> 3<br> 8in<br> V<br> V ~ [?]in3

LuckyWell [14K]

Answer:

50 in ^3

Step-by-step explanation:

V = 1/3 pi r^2 h

We know that pi = 3

the diameter is 5 so the radius is 1/2 the diameter of 5/2 = 2.5

The height is 8

V = 1/3 ( 3) ( 2.5)^2 ( 8)

V = 50 in ^3

5 0

3 years ago

A cell phone company tests 75 cell phones and finds that 3 of them have defects. Out of 450 cell phones, how many would you expe

Hoochie [10]

Answer:

18 cellphones

Step-by-step explanation:

75 x 6= 450

3 x 6= 18

3 0

3 years ago

Factor with GCF and slide and divide 7n^2 + 52n + 21

UkoKoshka [18]

Answer:

( 7 n+ 3 ) ( n + 7 )

Step-by-step explanation:

factor by grouping

3 0

3 years ago