Help anyone I’ll appreciate it thank you

ans is 21

Step-by-step explanation:

you see the right angle plus 15 degree angle equal to the 5x angle

so the quation is

90+15=5x

105=5x

21=x

Answer:

The temperature changed by 45°F .

Step-by-step explanation:

-5°F to 0°F = 5°F  and  0°F to 40°F = 40°F

5° + 40° = 45°F

Answer:

x=30

Step-by-step explanation:

6x+4x-6=24+9x

combine like terms

10x-6=24+9x

add 6 on both sides

10x=30+9x

subtract 9x on both sides

x=30

Hope this helps! :)

Answer:

Here is the order (considered % at the end to be a criteria)

Answer:

26

18

32

45

78

65

least to greatest

Answer:

a

The 95% confidence interval is

   [tex] 0.7811 <  p <  0.9529 [/tex]

Generally the interval above can interpreted as

    There is 95% confidence that the true proportion of Wal-Mart stores that have more than 2 items priced inaccurately per 100 items scanned lie within the interval  

b

  Generally  99% is outside the interval obtained in a  above then the claim of Wal-mart is not believable  

c

 [tex] n =  125  \  stores [/tex]  

Step-by-step explanation:

From the question we are told that

    The sample size is  n =  60  

    The number of stores that had more than 2 items price incorrectly is  k =  52  

Generally the sample proportion is mathematically represented as  

             [tex]\^ p = \frac{ k }{ n }[/tex]

=>          [tex]\^ p = \frac{ 52 }{ 60 }[/tex]

=>          [tex]\^ p = 0.867[/tex]

From the question we are told the confidence level is  95% , hence the level of significance is    

      [tex]\alpha = (100 - 95 ) \%[/tex]

=>   [tex]\alpha = 0.05[/tex]

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

   [tex]Z_{\frac{\alpha }{2} } =  1.96[/tex]

Generally the margin of error is mathematically represented as  

     [tex]E =  Z_{\frac{\alpha }{2} } * \sqrt{\frac{\^ p (1- \^ p)}{n} } [/tex]

=>   [tex]E =  1.96  * \sqrt{\frac{ 0.867  (1- 0.867)}{60} } [/tex]

=>   [tex]E =  0.0859  [/tex]

Generally 95% confidence interval is mathematically represented as  

      [tex]\^ p -E <  p <  \^ p +E[/tex]

=>    [tex] 0.867  - 0.0859  <  p <  0.867  +  0.0859 [/tex]

=>    [tex] 0.7811 <  p <  0.9529 [/tex]

Generally the interval above can interpreted as

    There is 95% confidence that the true proportion of Wal-Mart stores that have more than 2 items priced inaccurately per 100 items scanned lie within the interval  

Considering question b

Generally  99% is outside the interval obtained in a  above then the claim of Wal-mart is not believable  

Considering question c

From the question we are told that

    The margin of error is  E = 0.05

From the question we are told the confidence level is  95% , hence the level of significance is    

      [tex]\alpha = (100 - 95 ) \%[/tex]

=>   [tex]\alpha = 0.05[/tex]

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

   [tex]Z_{\frac{\alpha }{2} } =  1.645[/tex]

Generally the sample size is mathematically represented as  

    [tex]n = [\frac{Z_{\frac{\alpha }{2} }}{E} ]^2 * \^ p (1 - \^ p ) [/tex]

=> [tex]n=  [\frac{1.645 }}{0.05} ]^2 * 0.867  (1 - 0.867 ) [/tex]

=>   [tex] n =  125  \  stores [/tex]  

Answer:

Sydney's Age is 6

Step-by-step explanation:

6 x 2 = 12

12 + 6 = 18

Answer:

Sydney is 6

Step-by-step explanation:

You get this by dividing 18 by three, as one set of 6 is Sydney while tcice that is her brother.

9514 1404 393

Answer:

  9 square units

Step-by-step explanation:

The base JL is a horizontal line. Its length is 5-(-1) = 6.

The height is the difference between the y-coordinate of K and the y-coordinate of the horizontal line: 4 -1 = 3.

The formula for the area of a triangle is ...

  A = (1/2)bh

  A = (1/2)(6)(3) = 9 . . . square units

The area of ∆JKL is 9 square units.

Answer:

9 units

Step-by-step explanation:

shorter answer

Answer:

8 outfits

Step-by-step explanation:

Each number represent a different shirt and each letter represents a different skirt:

1 2 3 4

A B

Outfits:

1A 2A 3A 4A

1B 2B 3B 4B

(hope this helps, i don't really know how to explain it)

Answer:

I got 8!

Step-by-step explanation:

Answer:

The perimeter is 19.7

Step-by-step explanation:

The question is not complete and there is no attachment. Nevertheless, we can make do with the given information.

we can picture that the shape is a circle and we are required to find the perimeter/circumference of the circular shape

Given

The radius r= 3.142

Step two:

the perimeter/circumference is expressed as

C=2πr

C= 2*3.142*3.142

C= 19.7

Answer:

12.75$

Step-by-step explanation:

15$/100=0.15

0.15×15%=2.25

15$-2.25=12.75$

Answer:

15 students/van

26 students/bus

Answer:

When x = 12, y = 4.

Step-by-step explanation:

If

y

∝

x

we can write that

y

=

k

⋅

x

where k is a constant of proportionality.

Using the values given:

6

=

18

⋅

k

⇒

k

=

1

3

y

=

1

3

⋅

12

=

4

Answer:

2

Step-by-step explanation:

1/2 divided by 1/4 rewritten is 1/2 times 4/1 equels 4/2. In its simplest form 2.

1/2 divided by 1/4 in the simplest form is 2.

The division in mathematics is one kind of operation. In this process, we split the expressions or numbers into same number of parts.

Given that the expression 1/2 divided by 1/4.

simplifying,

1/2 divided by 1/4  = 1/2 ÷ 1/4

Rearranging into the multiplication form,

1/2 divided by 1/4 = 4/2

1/2 divided by 1/4 = 2

Therefore, the simplest form of 1/2 divided by 1/4 is 2.

To learn more about the division;

https://brainly.com/question/13263114

#SPJ2

Answer:

[tex]N:D = 1: 2[/tex]

Step-by-step explanation:

Given

Represent Nickels with N and Dimes with D

[tex]N=25[/tex]

[tex]D=25[/tex]

Required

Write as a ratio to lowest term

Ratio of Nickels to Dime is represented as N:D

[tex]N:D = 25\ nickels : 25\ dimes[/tex]

Convert nickels to dollar

[tex]N:D = 25\ * \$0.05. : 25\ * \$0.10[/tex]

[tex]N:D = 1.25 : 2.5[/tex]

Divide through by 1.25

[tex]N:D = 1.25/2.25 : 2.5/1.25[/tex]

[tex]N:D = 1: 2[/tex]

Hence, the ratio to lowest term is 1:2

Answer:

60

Step-by-step explanation:

Answer:

h = 13

Step-by-step explanation:

20 - 7 = 13

Answer:

HL

Step-by-step explanation:

In both triangle, hypotenuse and one leg is congruent. So, HL congruent

Answer:

7n-10

Step-by-step explanation:

=(5n-3) - (-2n) -7 [Bracket Opens]

=5n - 3 +2n -7 [- × - = +]

=7n - 10 [ addition]

Answer:

One solution (x = -3)

Step-by-step explanation:

4x + 2x + 2 = 3x - 7

6x + 2 = 3x - 7

3x = -9

x = -3

Answer:

Tip.

Step-by-step explanation:

Since to total is $5 that means all taxes are already counted for.

He added the 75 cents as a tip.

Answer:

15-9-2.65-1.35-1.74 which is a negative number meaning he doesnt have enough money

Step-by-step explanation:

9(1) + 2.65(1) + 1.35(1) + 1.74(2) = 16.48

Answer:

0.0809

Step-by-step explanation:

Given that :

Mean(m) = 16000

Standard deviation (s) = 1500

Probability that the life span of the monitor will be more than 18,099

P(x > 18099)

Using the Zscore formula :

Zscore =(x - m) / s

Zscore = (18099 - 16000) / 1500

Zscore = 2099 / 1500

Zscore = 1.399

P(Z > 1.399)

Using the Z probability calculator :

P(Z > 1.399) = 0.080906

= 0.0809

Answer:

There is no function since there is no association between all the numbers

Step-by-step explanation:

If you were to put them in a graph they would be every where and make there be no function.

Answer:

[tex]5\sqrt{5}\left(ab\right)^{\frac{3}{2}}=\sqrt{\left(5ab\right)^3}[/tex]

Step-by-step explanation:

Let us consider the expression

[tex]5\sqrt{5}\left(ab\right)^{\frac{3}{2}}[/tex]

Writing the expression as a radical

But, let us revise some rules:

[tex]\sqrt{a}=a^{\frac{1}{2}}[/tex]

[tex]\left(a^b\right)^c=a^{bc},\:\quad \mathrm{\:assuming\:}a\ge 0[/tex]

[tex]\left(a\cdot \:b\right)^n=a^nb^n[/tex]

let us solve now

[tex]5\sqrt{5}\left(ab\right)^{\frac{3}{2}}[/tex]

[tex]=5^{\frac{3}{2}}\left(ab\right)^{\frac{3}{2}}[/tex]         ∵  [tex]\:5^{\frac{3}{2}}=5\sqrt{5}[/tex]

[tex]=\left(5ab\right)^{\frac{3}{2}}[/tex]

[tex]=\left(5ab\right)^{3\cdot \frac{1}{2}}[/tex]

[tex]=\left(\left(5ab\right)^3\right)^{\frac{1}{2}}[/tex]

[tex]\mathrm{Apply\:radical\:rule}:\quad \sqrt{a}=a^{\frac{1}{2}}[/tex]

[tex]=\sqrt{\left(5ab\right)^3}[/tex]

Thus,

[tex]5\sqrt{5}\left(ab\right)^{\frac{3}{2}}=\sqrt{\left(5ab\right)^3}[/tex]

Answer:

B.it is an equilateral triangle not a right triangle