I really dont get this question

Answer:

Step-by-step explanation:

Given that:

population mean = 150

Sample size  = 10

Sample mean = 136

Standard deviation = 28

Significance level = 0.05

The null hypothesis:

[tex]H_o : \mu \ge 150[/tex]

The alternative hypothesis

[tex]H_a : \mu < 150[/tex]

This is a left-tailed test.

The t-test statistics can be computed as:

[tex]t = \dfrac{\overline x - \mu}{ \dfrac {s} {\sqrt{n}} }[/tex]

[tex]t = \dfrac{136 - 150}{ \dfrac {28} {\sqrt{150}} }[/tex]

t = -1.58

The P-value = P(t < -1.58)

Using the t tables

P-value = 0.0743

Decision rule: To reject the null hypothesis if the P-value is lesser than the level of significance.

Conclusion: We fail to reject the null hypothesis; since P-value is greater than (∝). Thus, there is sufficient evidence to support Fred's Claim.

No, we can not reject Fred's claim.

Answer:

-21.43%

Step-by-step explanation:

intial valu: 84

final value: 66

so this means it will eaqual-21.43% :) just remeber that the difference if 84 and 66 is -18 :) hope this helps!!!!!!!

Answer:The answer is B

Step-by-step explanation:

because i did the same test and got 100 A+

Answer:

$62.50

Step-by-step explanation:

The amount of private mortgage insurance required in this case per annum is 0.75% of the entire loan which is $100,000.

Annual insurance=0.75%*loan amount

Annual insurance=0.75%*$100,000

Annual insurance=$750

Since the annual cost of mortgage insurance per year is established, monthly cost would be annual cost divided by 12 months is which is number of months in a year that payments are to be made

monthly payment=$750/12

monthly payment=$62.50

Answer:

A

Step-by-step explanation:

Answer:

I believe its A

Answer:

Step-by-step explanation:

Y axis of y

1 ÷ 4 = 0.25

1 ÷ 2/8 = 4

1/2 ÷ 4 = 1/8

1/2 ÷ 2/8 = 2

Answer:

x= −  8 /13  = −1  8 /5  = −1.625

Step-by-step explanation:

either one is the answer

<3 Enjoy,

    Dea

Answer:

x=-1.625  Decimal form  

x= -13/8    Fraction form

Step-by-step explanation:

3(-2x-1)=2(x+5)

Use distributive property to solve-

-6x-3=2x+10

Now add like terms

-6x-3=2x+10

    +3       +3

   -6x=2x+13  (get the x by itself)

  -2x    -2x

-8x=13     Divide

x= -1.625   Decimal form

x=-13/8   Fraction form

Answer:

x+4x=5x

5x+x=6x

6x+8x=14x.

Answer:

You can use the division sign.

Step-by-step explanation:

48÷{2×[(6×5)-(9×3)]} =

48÷{2×[(30)-(27)]} =

48÷{2×[3]} =

48÷{6} =

8

Answer:

I think its A

Step-by-step explanation:

because A shows decreasing and half which is 2.

Answer:

yes

Step-by-step explanation:

because of math,

Step-by-step explanation:

[tex] p\geqslant - 8[/tex]

Answer:

Expression

Step-by-step explanation:

Answer: Expression

Got this right!!!

Hope this helps!!!

Answer:

7.9 of each

Step-by-step explanation:

Answer:

$416.00

Step-by-step explanation:

Leslie's 10% and her employer's 3% total 13% of her salary:

0.13 · $3200 = $416

The maximum monthly deposit to Leslie’s 401(k) account, including her employer’s matching contribution, is $416.

A matching contribution is a type of contribution that Leslie's employer decides to contribute to Leslie's 401(k) plan, which is an employer-sponsored retirement plan.

Monthly salary = $3,200

Leslie's maximum contribution = 10% of salary

Employer's matching contribution = 3% of salary

Total contributions to the 401(k) plan = 13% of salary

= $416 ($3,200 x 13%)

Thus, the maximum monthly deposit to Leslie’s 401(k) account, including her employer’s matching contribution, is $416.

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Answer:

[tex]\int\limits {e^{2s} cos\frac{s}{4} ds[/tex]    =[tex]\frac{4 e^{2s} }{65 } ({8 cos (\frac{1}{4} ) s + sin \frac{1}{4} s} ))[/tex]

Step-by-step explanation:

Step(i):-

Given that  [tex]f(s) = e^{2s} cos\frac{s}{4}[/tex]

Now integrating

            [tex]\int\limits {f(s)} \, ds = \int\limits {e^{2s} cos\frac{s}{4} ds[/tex]

By using integration formula

   [tex]\int\limits { e^{ax} cos b x dx = \frac{e^{ax} }{a^{2}+b^{2} } ( a cos b x + b sin b x )[/tex]

Step(ii):-

 [tex]\int\limits {e^{2s} cos\frac{s}{4} ds[/tex]    =   [tex]\frac{e^{2s} }{(2)^{2}+(\frac{1}{4}) ^{2} } ( 2 cos (\frac{1}{4} ) s + \frac{1}{4} sin \frac{1}{4} s ))[/tex]  

                    = [tex]\frac{e^{2s} }{(4+\frac{1}{16})} ( 2 cos (\frac{1}{4} ) s + \frac{1}{4} sin \frac{1}{4} s ))[/tex]

                   = [tex]\frac{e^{2s} }{(\frac{65}{16} } ( \frac{8 cos (\frac{1}{4} ) s + sin \frac{1}{4} s}{4} ))[/tex]

                 = [tex]16 X\frac{e^{2s} }{65 } ( \frac{8 cos (\frac{1}{4} ) s + sin \frac{1}{4} s}{4} ))[/tex]

                 =[tex]\frac{4 e^{2s} }{65 } ({8 cos (\frac{1}{4} ) s + sin \frac{1}{4} s} ))[/tex]

Final answer:-

[tex]\int\limits {e^{2s} cos\frac{s}{4} ds[/tex]    =[tex]\frac{4 e^{2s} }{65 } ({8 cos (\frac{1}{4} ) s + sin \frac{1}{4} s} ))[/tex]

Answer:

[tex]\frac{5\sqrt{3} }{6}[/tex]

Step-by-step explanation:

Given :

base length = 2

side lengths = x

dx/dt = 5 unit/min

Determine d∅ / dt  at x = 2

d∅ / dt  at x = 2  = [tex]\frac{5\sqrt{3} }{6}[/tex]

attached below is a detailed solution

Answer:

Use the BODMAS method and at the end work the fraction left by adding it to 15

My answer was 15.274

Answer:

24°

Step-by-step explanation:

Assume the hexagon is regular.

Answer: the first one

Step-by-step explanation:

Answer:

1,296,296 cars are red.

Answer:

Can you please write a question

Step-by-step explanation:

Answer:

can you write a question and also can i pls get a brainliest it'll make my day a whole lot better bc i have had a terrible day today :/ have a blessed day :)

Step-by-step explanation:

Answer:

220

Step-by-step explanation:

Easy!

Multiply 55 by 4!

2

55

x  4

--------

 220

five times 4 is 20, so put 0 then regroup the 2. Then, 5 times 4 again, but add two!

Answer: 1.977

Step-by-step explanation:

Answer:

1.977

Step-by-step explanation:

Answer is 11.9ft.

Law of cosines:

In trigonometry, the Cosine Rule says that the square of the length of any side of a given triangle is equal to the sum of the squares of the length of the other sides minus twice the product of the other two sides multiplied by the cosine of angle included between them.

[tex]c^{2} = a^{2} + b^{2} - 2ab cos(C)[/tex]

Since we have two side lengths and an angle, we can use the Law of Cosines to find the length of the final side.

In this case we can write the law of cosines as,

[tex]f^{2} = d^{2} + e^{2} - 2(de)cos(F)[/tex]

f2 = 5.22 + 6.82 - 2(5.2)(6.8)cos(166)

f2 = 27.04 + 46.24 - 66.56 cos (166)

f2 = 73.28 - 66.56 cos 166

f = √(73.28 - 66.56 cos 166) ≈ 11.9 ft.

f ≈ 11.9 ft.

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Answer:

132

Step-by-step explanation:

S.A.S.→Law of Cosines

From reference sheet

[tex]a^2=b^2+c^2-2bc[/tex] cos A

plug in values

[tex]f^2=36^2+97^2-2(36)(97)cos 166[/tex]

square and find cosine

[tex]f^2=1296+9409-2(36)(97)(-09.70296)[/tex]

Multiply

[tex]f^2=1296+9409+6776.54535[/tex]

Add

[tex]f^2=17481.54535[/tex]

Square root and round

[tex]f=\sqrt{17481.54535}[/tex]≈132.218≈132

Answer:

40=10% im rightthe total is 400

Step-by-step explanation:

Answer:

-500 +  200, -300

|0 - 200|, +200

Step-by-step explanation: