Pls help 10th grade math

Answer:

36

Step-by-step explanation:

4(x+7) = 6(3x)

2(x+7) = 3(3x)

2x+14 = 9x

14 = 7x

x = 2

Plugging it back into the equation:

Hexagon = 6(3*2) = 6*6 = 36

Square = 4(2+7) = 4*9 = 36

Therefore, the perimeter of each figure is 36.

Answer:

2x=128 x=64

Step-by-step explanation:

64x 2 =128

Answer:

5 1/2

Step-by-step explanation:

11/3 divided by 2/3= 5 1/2

Answer:

a

The null hypothesis is  [tex]H_o : \mu  =  13.4000[/tex]

The alternative hypothesis is  [tex]H_a :  \mu \ne  13.4000[/tex]

The null hypothesis is rejected

b

The  99% confidence level is   [tex]13.3930  < \mu  < 13.3994 [/tex]

Step-by-step explanation:

From the question we are told that

  The sample size is  n =  10

   The  population mean is  [tex]\mu =  13.4 000 \  angstroms[/tex]

   The level of significance is  [tex]\alpha =  0.05[/tex]

   The  sample data is  

13.3987, 13.3957, 13.3902, 13.4015, 13.4001, 13.3918, 13.3965, 13.3925, 13.3946, and 13.4002

Generally the sample mean is mathematically represented as

        [tex]\= x =  \frac{13.3987+ 13.3957\cdots +13.4002 }{10}[/tex]

=>     [tex]\= x = 13.3962 [/tex]

Generally the sample standard deviation  is mathematically represented as

    [tex]\sigma = \sqrt{\frac{\sum (x_i - \= x)^2}{n} }[/tex]

=> [tex]\sigma = \sqrt{\frac{ (13.3987 - 13.3962)^2 +  (13.3987 - 13.3962)^2 + \cdots + (13.3987 -13.4002)^2  }{10} }[/tex]

=>  [tex]\sigma =0.0039 [/tex]

The null hypothesis is  [tex]H_o : \mu  =  13.4000[/tex]

The alternative hypothesis is  [tex]H_a :  \mu \ne  13.4000[/tex]

Generally the test statistics is mathematically represented as

      [tex]z  =  \frac{\= x - \mu}{\frac{\sigma}{\sqrt{n} } }[/tex]

=>    [tex]z  =  \frac{13.3962 -  13.4000}{\frac{0.0039}{\sqrt{10} } }[/tex]

=>   [tex]z =  3.08[/tex]

Generally the p-value is mathematically represented as

       [tex]p-value  = 2P( z   >  3.08)[/tex]

From the z-table  [tex]P(z >  3.08)= 0.001035[/tex]

So

       [tex]p-value  = 2* 0.001035[/tex]

      [tex]p-value  = 0.00207[/tex]

So from the obtained value we see that

     [tex]p-value  < \alpha[/tex]

Hence the null hypothesis is rejected

Consider the b question

Given that the confidence level is  99%  then the level of significance is

    [tex]\alpha =  (100 -99)\%[/tex]

=> [tex]\alpha =  0.01[/tex]

Generally from the normal distribution table critical value  of  [tex]\frac{\alpha }{2}[/tex] is  

    [tex]Z_{\frac{\alpha }{2} } =  2.58[/tex]

Generally the margin of error is mathematically represented as  

     [tex]E =  Z_{\frac{\alpha }{2} } *  \frac{\sigma}{\sqrt{n} }[/tex]

=>   [tex]E = 2.58  *  \frac{0.0039}{\sqrt{10} }[/tex]

=>    [tex]E = 0.00318[/tex]

Generally the 99% confidence interval is mathematically represented as

     [tex]13.3962   - 0.00318  < \mu  < 13.3962   +  0.00318 [/tex]

=>   [tex]13.3930  < \mu  < 13.3994 [/tex]

Answer:

B) x = 6

Step-by-step explanation:

If you try substituting all the numbers (from these options) for x, you'll find that 6 is the only x value that can let the expression be further simplified.

[tex] \sqrt{39 \times 6} [/tex]

[tex] \sqrt{234} [/tex]

[tex] \sqrt{9 \times 26} [/tex]

[tex] \sqrt{9} \times \sqrt{26} [/tex]

[tex]3 \sqrt{26} [/tex]

Answer:

2

Step-by-step explanation:

-42/14 = 3, so you need to cancel out the 1/2 being multiplied on the bottom part of the fraction

Answer:

-17

Step-by-step explanation:

-3-14 = -17

-17 + 14 = -3

Answer:

88% left to consume

Step-by-step explanation:

880 of 1000

88/100

percentages are out of 100

so you can just divide both sides by 100, or take away the extra zero

let me know if you need further guidance ;)

Answer:

C

American involvement in other countries.

Hope it helps ❤️

The labeled bolts of clothes represent the political cartoon will be about American involvement in other countries,

A drawing, chart, or graph that is labeled helps to visualize a concept. Students can better understand the relationships between the diagram's various components by using labeled diagrams in math, science, and language arts.

It is given that the labeled bolts of clothes represent the political cartoon.

They provide a cheerful diversion from the increasingly somber political discourse by offering a colorful alternative to formal news reporting. Cartoons offer a quick and easy way to comment on current events because they can condense news and opinion into a caricature.

Thus, the labeled bolts of clothes represent the political cartoon will be about American involvement in other countries,

Learn more about the labeled diagram here,

https://brainly.com/question/13354430

#SPJ2

Answer: y =5(5)-3

5*5=25-3 =22  ANSWER IS y=22

Answer:

26.79 (rounded to the nearest hundredth)

Answer:

5.4

Step-by-step explanation:

5.2, 5.4, 4.9, 4.4, 5.1

4.4, 4.9, 5.1, 5.2, 5.4

5.4 is the maximum

Hope this helped!

Answer:

[tex] k = 10.08 \times 100 \div 0.12 \times 100 = 1008 \div 12 = 84[/tex]

Step-by-step explanation:

option B 84

.

Answer:

[tex]7^{3}[/tex]

Step-by-step explanation:

Hope this helps! Pls consider marking my answer Brainliest! it would mean a lot!

Answer:

7^3

Step-by-step explanation:

(also happy pride month!! ️‍)

[tex]3 {a}^{2} \times {b}^{2} \times 2ab + 6 {a}^{3} \times {b}^{2} = [/tex]

[tex]6 {a}^{3} {b}^{3} + 6 {a}^{3} {b}^{2} = [/tex]

Factoring 6a^3 b^2

[tex]6 {a}^{3} {b}^{2}(b + 1) [/tex]

_________________________________

I think this is the correct answer.

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

Step-by-step explanation:

2.3r - 7 + 6 = 21

2.3r - 1 = 21

2.3r = 22

r = 22/2.3

r = 9.6

2.3(4.23) - y + 6 = 21

9.73 - y + 6 = 21

15.73 - y = 21

-y = 5.27

y = -5.27

Answer:

The answer is Not a line (no constant slope)

Step-by-step explanation:

21/7

-2/-1

78/26

-105/-35

The slope is always different, therefore there is no constant slope!

Hope this helps!

Answer:

4+(9*6)^2-1

Step-by-step explanation:

Answer:

The decision rule is  

   Fail to reject the null hypothesis

The conclusion is  

   There is no sufficient evidence to accept  the manufacturing company claims

Step-by-step explanation:

From the question we are told that

   The sample size is  n =  35

   The sample standard deviation is  [tex]s =  2.12[/tex]

   The level of significance is [tex]\alpha = 0.01[/tex]

The null hypothesis is  [tex]H_o  :  \sigma ^2  = 9.0[/tex]

The alternative hypothesis is  [tex]H_a  :  \sigma ^2  <  9.0[/tex]

Gnerally the test statistics is mathematically represented as

    [tex]X^2 _{stat} =  \frac{(n -1) * s^2 }{\sigma^2 }[/tex]

    [tex]X^2 _{stat} =  \frac{(35  -1) * 2.12^2 }{9 }[/tex]

=> [tex]X^2 _{stat} =  16.98[/tex]

Generally the degree of freedom is mathematically represented as

   [tex]df =  n - 1[/tex]

=>    [tex]df =  35 - 1[/tex]

=>    [tex]df =  34[/tex]

From the chi - distribution table the  critical value of [tex]\alpha[/tex] at a degree of freedom of  [tex]df =  34[/tex] is  

     [tex]X^2_{\alpha, 34 } =56.060[/tex]

From the value obtained we see that the test statistics does not lie within the region of rejection (1.e 56.060 , [tex]\infty [/tex]   )

Then

The decision rule is  

   Fail to reject the null hypothesis

The conclusion is  

   There is no sufficient evidence to accept  the manufacturing company claims

Answer:

1

Step-by-step explanation:

So when we raise a number to the zeroth power, that means we multiply the number by itself zero times - but that means we're not multiplying anything at all! ... In short, 0 is the only number such that for any number x, x + 0 = x

Answer:

Hi there! The answer to this question is 1.

Hope this helps :D

Answer:

160.284

Step-by-step explanation:

Answer:

.

Step-by-step explanation:

a = 66 points (first test)

b = 98 (second test)

Hi there !

a = first test

b = second test

a + b = 164

b = a + 32

replace b

a + (a + 32) = 164

2a = 164 - 32

2a = 132

a = 132 ; 2

a = 66 points (first test)

b = 66 + 32

b = 98 (second test)

Good luck !

Answer:

b and 59° are vertical angles so they are equal.

b=59°

Answer:

66.34

Step-by-step explanation:

if my calculations are correct it should be 66.34

The answer should be 66.34

Answer:

Probably 5 feet

Step-by-step explanation:

Since the diving board is 5 feet then it is 10 feet the it equals 5 feet if you half it

Sorry if wrong and hope this helps