helpppppppppppppppppppppp

Answer:

There is sufficient evidence at 0.05 significant level to support company's claim.

Step-by-step explanation:

We have these informations from the question

n = 1400

P^ = 31% = 0.31

Alpha level = 5% = 0.05

Then we come up with the hypothesis

H0: P = 0.28

H1: P>0.28

From here we calculate the test statistic

z = p^ - p/√pq/n

P = 0.28

q = 1-0.28

= 0.72

z = 0.31-0.28/√(0.31*0.72)/1400

= 0.03/√0.0001594

= 0.03/0.012

= 2.5

Then we have a p value = 0.00621

The p value is less than significance level

0.00621<0.05

So the null hypothesis is rejected.

We conclude that There is sufficient evidence at 0.05 significant level to support company's claim.

Answer:

Please check the explanation.

Step-by-step explanation:

Given the expression

5+5(9b - 7)

FIRST CASE (JUST EVALUATION)

Given the expression

[tex]5+5\left(9b-7\right)[/tex]

[tex]\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b-c\right)=ab-ac[/tex]

[tex]5+5\left(9b-7\right)=5+5\cdot \:9b-5\cdot \:7[/tex]

                     [tex]=5+45b-35[/tex]

                     [tex]= 45b - 30[/tex]

Therefore, we conclude that:

[tex]5+5\left(9b-7\right)=45b-30[/tex]

SECOND CASE (Finding the value of b)

Assuming we have to determine the value of b

[tex]5+5(9b - 7) = 0[/tex]

As we have determined

[tex]5+5\left(9b-7\right)=45b-30[/tex]

so substituting [tex]5+5\left(9b-7\right)=45b-30[/tex] in the equation

[tex]45b-30 = 0[/tex]

Add 30 to both sides

[tex]45b-30+30=0+30[/tex]

Simplify

[tex]45b=30[/tex]

Divide both sides by 45

[tex]\frac{45b}{45}=\frac{30}{45}[/tex]

Simplify

[tex]b=\frac{2}{3}[/tex]

Therefore, the value of b = 2/3

Answer:

10+10=20 +10=30

Answer:

GCF=X

FACTOR OUT X(5X+2)=0

X1=0 AND X2=-2/5

Step-by-step explanation:

The GCF is x . So when we factor it out we get

GCF =x

Factor out  x (5x+2)=0

x1=0 and x2=-2/5

PLEASE MARK ME AS BRAINLIEST

Answer: 1/25 -9

Step-by-step explanation:

Answer:

- [tex]\frac{1}{5}[/tex] ( x + 45 )

Step-by-step explanation:

Given

- [tex]\frac{1}{5}[/tex] x - 9 ← factor out - [tex]\frac{1}{5}[/tex]

= - [tex]\frac{1}{5}[/tex] ( x + 45 )

Answer:

d=5 mark brainliest if satisfied

Step-by-step explanation:

Subtract 7.5 from both sides

2.5d=12.5

d=5

Answer: X= 35

Step-by-step explanation:

Combine like terms then factor them out

Answer:

n^2-3

Step-by-step explanation:

Answer:

C' (-9 , 3)  D' (6 , 3)  E' (-9 , 6)

Step-by-step explanation:

Dilation Factor: 3           Origin: (0,0)       (x,y) ---> (3x,3y)

C' (-9 , 3)

D' (6 , 3)

E' (-9 , 6)

Answer:

w-10-5

Step-by-step explanation:

you are looking for the expression right??

Answer:

the answer is Y=5

hope this helps☺

Answer:

f^-1(x) =  (2x + 4) / 3

Step-by-step explanation:

- switch 'y' with 'x'

x = 3/2y - 2

- solve for 'y'

x + 2 = 3/2y

- multiply each side by 2

y = (2x + 4) / 3

Step-by-step explanation:

Anthropology is the real answer hshshshshs

Answer:

The answer would be D i hop this helps.

Step-by-step explanation:

Answer:

9 and 15

Step-by-step explanation:

9 + 15 = 24/ 2 = 12

15 - 9 = 6

The two numbers are 15 and 9.

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

We have,

Mean of two number is 12 and range is 6.

let the two number be a and b

So, Mean = (a + b)/ 2

12 = (a + b)/ 2

a+ b= 24.........(1)

Now, range = 6

a - b = 6........(2)

Solving equation 1 and 2 we get

2a = 24-6

2a = 18

a= 9

and, b= 24 - 9

b = 15

Learn more about Equation here:

https://brainly.com/question/29657983

#SPJ2

Answer:

65

Step-by-step explanation:

Answer:

E

Step-by-step explanation:

The point (0, 7) in located in the 1st quadrant

Answer:

A

Step-by-step explanation:

i think because it would equal to a logical number and estimation for the total cost (total for that sum is 83)

Answer: the required equation is 5x - 6y + 5z = 7

Step-by-step explanation:

Given that;

points : (-1, 1, -5) and (4, -5, 0).

mid point : ( [(-1+4)/2], [(1-5)/2], [(-5+0)/2]

⇒ midpoint : ( 3/2, -2, -5/2 )  

                        x₀    y₀    z₀

Direction vector n = [4-(-1)], [ -5 - 1], [ 0 - (-5)]

⇒ Direction vector n = < 5, -6, 5 >

General equation plane : n(x-x₀, y-y₀, z-z₀) = 0

so we substitute

⇒ (5, -6, 5) (x-3/2, y-(-2), z-(-5/2) ) = 0

⇒ (5, -6, 5) (x - 3/2, y + 2, z + 5/2) ) = 0

⇒ 5(x - 3/2) - 6(y + 2 ) + 5(z + 5/2) = 0

⇒ 5x - 15/2 - 6y - 12 + 5z + 25/2 = 0

⇒ 5x - 6y + 5z = 15/2 + 12 - 25/2

⇒ 5x - 6y + 5z = 7

Therefore, the required equation is 5x - 6y + 5z = 7

Hey there!

The answer to your question is D.) After coupons, the game is $2.25 cheaper at Techno Hut

First, we will solve for the price of Techno Hut's game. Let's find the amount of the discount:

0.10 x 40

4

Then, we take the discount off the price:

40 - 4 = 36

The price of the game at Techno Hut is $36

Next, we find the price of the game at Gamer World. Let's find the amount of the discount:

0.15 x 45

6.75

Then, we take the discount off the price:

45 - 6.75 = 38.25

The price of the game at Gamer World is 38.25

Therefore, Techno Hut is cheaper.

Hope it helps! Good luck and have a great day!

Answer:

$5.97

Step-by-step explanation:

Answer:

$5.97

Step-by-step explanation:

Answer: 37.1

Step-by-step explanation: 530 x .07

Answer:

$37.10

Step-by-step explanation:

You have to take the total price and multiply it by the decimal equivalent of the sales tax. In this case, 7% = 0.07, and so 530 x 0.07 = 37.10. If you wanted to get the total price (for future reference) then you would simply add the tax total to the original price.

Answer:

h= 6.8

Step-by-step explanation:

Answer: 9 x 7

Step-by-step explanation: 9 x 7 = 63

Hope this helps!

Answer:

h+5=(6y)-8

Step-by-step explanation:

The sum is addition. So it wants you to add h and 5 on one side. Do 6 and y in parentheses on the other side and it wants you to subtract 8 from what you got from 6 times y.

Hope this helped!!

Answer:

Move it up as far as it will go without letting the objective touch the coverslip.

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

18 = 2 * 3 * 3 = 2 *3²

[tex]18*3^{(n+2)} = 2*3^{2}*3^{n+2}\\\\[/tex]

                [tex]= 2*3^{2+n+2}\\\\= 2*3^{n+4}\\\\= 2(3)^{n+4}[/tex]

Hint:

[tex]a^{m}*a^{n} = a^{m+n}[/tex]