Helpp!
Find the value of x. ​

Answer:

The p-value is approximately 0.9015  

Step-by-step explanation:

The statistic parameters are;

The population mean, μ₀ = $85,000

The population standard deviation, σ = $8,700

The size of the sample, n = 50

The sample mean annual profit, [tex]\bar x[/tex] = $82,441

The null hypothesis, H₀: μ = 81,000

The alternative hypothesis, Hₐ: μ > 81,000

Given that n > 30, a z-test is used

The test statistic ≈ 1.29

Therefore, we have;

[tex]z=\dfrac{\bar{x}-\mu_0 }{\dfrac{\sigma }{\sqrt{n}}} = 1.29[/tex]

From the z-score, the p value for a test statistic of 1.29 = 0.90147 which is 0.9015 after rounding up to 4 decimal places

Answer:

-3

Step-by-step explanation:

hopes that it helps you out

Answer:

No solution

Step-by-step explanation:

Given

[tex]x - y = 11[/tex]

[tex]x - y = 5[/tex]

Required

Solve by graph

See attachment for graph.

From the attachment, lines [tex]x - y = 11[/tex] and [tex]x - y = 5[/tex] do not intersect. This implies that, no solution exist

Answer:

triangular pyramid

Step-by-step explanation:

Answer:

4,1

Step-by-step explanation:

(x-4)(x-1)

x=4 or x=1

Answer:

Should be 4/7

Hope it helps have a good day!

Answer:

Polynomials are closed under addition and subtraction, which is fancy mathspeak that means that whenever we add or subtract two polynomials, we always get another polynomial. In that way, they behave a lot like the numbers you're probably already familiar with. Adding and subtracting:

And it works the same with polynomials!

Answer: Equation for the line of best fit is given by f(x)=-4.28402x+0.0875

Step-by-step explanation: like what you just put in your picture

Long Course Season Recorded Best time

2005 2:33.42

2006 2:24.81

2007 2:10.93

2008 2:03.45

2009 1:58.67

2010 1:59.17

2011 1:55.06

2012 1:55.82

2013 1:54.81

2014 2:00.03

-Since we can see from the scatter plot that it has negative correlation.

Equation for the line of best fit is given by f(x)=-4.28402x+0.0875

- This is what I can give you I see some people do this work before and when I see it I just take note and I think it was the answer...

- Hope this help :)

Answer:

Step-by-step explanation:

You have to use the power rule for this. The way I teach my Algebra 1 students to do this is take everything inside the parenthesis and put it into its own set of parenthesis, and then raise each one to the outside power. One thing at a time makes it not so overwhelming. Like this:

[tex](4)^2(x^5)^2(y^3)^2[/tex]

Now follow the power rule. Multiply the power of each element in the parenthesis by the 2 outside.

[tex](4^1)^2=4^2=16[/tex], then [tex](x^5)^2=x^{10[/tex], and finally, [tex](y^3)^2=y^6[/tex].

Now put it all together to get:

[tex]16x^{10}y^6[/tex]

Answer:

steps below

Step-by-step explanation:

(cosA-sinA+1) * cosA = cos²A - sinA cosA + cosA

                                 = (1 - sin²A) - sinA cosA + cosA + sinA - sinA

                                 = cosA + sinA + 1 - sinA cosA  -sin²A - sinA  ..Re-group

                                 = (cosA + sinA + 1) - sinA (cosA + sinA + 1)

                                 = (cosA + sinA + 1) * (1 - sinA)

(cosA-sinA+1) / (cosA + sinA + 1) = (1 - sinA) / cosA

Answer: n-6p^2 + 2np  

Hope this helps!

Step-by-step explanation:

Answer:

(-3b) (10a -3b)

Step-by-step explanation:

(5a–3b)^2–25a^2

Replace (5a–3b) with x

x^2 - (5a) ^2

We have the difference of squares

( x-5a) (x+5a)

Now replace x with (5a -3b)

(5a -3b -5a) ( 5a -3b +5a)

Combine like terms

(-3b) (10a -3b)

Answer:

(5a-3b)²-25a²

= 25a²+9b²-2×5a×3b-25a { (a-b)²= a²+b²-2ab}

=9b²-30ab

=3b(3b-10a)

= -3b(10a-3b)

Ans

Hope, it helped!

First do inside the parentheses:

4 + [8/1 + 6-12] . 10

Now work inside the brackets doing division first

4 + [8 + 6 -12]. 10

Still inside the brackets add an subtract from left to right:

4 + 2 . 10

Multiply:

4 + 20

Add to get final answer of 24

Answer:

4+[8 ÷(8-7) +6 -12] . 10

4+[8÷1+6-12].10

4+[8+6-12].10

4+[14-12].10

4+2×10

4+20

24

Answer:

Step-by-step explanation:

So, she has a box of treats that weighs 9.0 pounds.

She's using those treats to make smaller bags, each having 0.6 pounds of treats.

How many smaller bags can she make?

Answer:

b

Step-by-step explanation:

Answer:

Mario ordered 7 pizzas and wants to divide the pieces equally on plates. He wants to put one fourth of a pizza on each plate. How many plates will Mario need in all?

Step-by-step explanation:

Answer:

I': (-1, 4)

J': (3, 5)

K': (3, 2)

Step-by-step explanation:

to find the new 'x' values, add 2 to original 'x' values

to find the new 'y' values, add 6 to original 'y' values

Answer:

<A=50

Step-by-step explanation:

85+x+55+x+50=180

2x+190=180

2x=180-190

2x=-10

x=-5

A=x+55

A=-5+55

A=50

Answer:Surface Area = 6×542 = 17496 feet2

Step-by-step explanation:

Answer:

5.33333333333

Step-by-step explanation:

2/3= 0.66666666666

0.66666666666 x 8= 5.33333333333

:)

Answer:

4/20

Step-by-step explanation:

Answer:

[tex]\frac{3}{20}[/tex]

Step-by-step explanation:

[tex]\text{To multiply fractions, multiply the numerators, and multiply the denominators.}[/tex]

[tex]\frac{a}{c} *\frac{b}{d}=\frac{ab}{cd}[/tex]

--------------------------

[tex]\frac{1}{5} *\frac{3}{4} =\frac{(1*3)}{(5*4)} =\boxed{\frac{3}{20}}[/tex]

Hope this helps.

Answer:

5

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

The answer is c

Answer:

5/8 * ? = 2 1/2

Step-by-step explanation:

x is the height of tower when finished.

We know that Priya takes a break when the tower is 2 and 1/2 feet tall, which is 5/8 off the height of the tower she wants to build.

This means that 5/8 of x equals 2 and 1/2 Let us represent this information in an equation.

5/8 × x = 2 and 1/2

Convert our given mixed fraction into improper fraction.

5/8 × x = 5/2

Multiply both sides of our equation by 8/5.

(8/5 × 5/8) × x = (5/2 × 8/5)

x = 8/2

x = 4

4 feet

Answer:

274.05 (I assume they round it to A. 274.1)

Step-by-step explanation:

The figure seems to be comprised of 7 triangles, each of base 8.7 and height 9.

total area would be

7 * (8.7 * 9 / 2) = 7 * 39.15 = 274.05

Answer: 17.9

Step-by-step explanation:

Answer:

V= l x b x h

= 9cm x 6cm x 12cm

=648

Answer:

93

Step-by-step explanation:

The absolute value is just how far from away from zero a number is.

Answer:

C. 4x-4

Step-by-step explanation:

If you divide by 4 on the left side you get...

16x/4 - 16/4

4x - 4

We are dividing by 4 because it was factored out of the expression.