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katovenus [111]

3 years ago

7

At the 0.01 significance level, test the claim that the true percentage is less than 10%. based on the results, determine whethe

r the 8% sample results justifies the phrase "almost 1 out of 10."

1 answer:

valentina_108 [34]3 years ago

4 0

You should ask your parent/guardian
or teacher if needed! Merry Christmas!

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What is the value of (2/3)^-4?

kvv77 [185]

Answer:

16/81

Step-by-step explanation:

$(2/3)^{-4}$

=> $2^{-4} /3^{-4}$

=> -16/-81

=> 16/81

If my answer helped, kindly mark me as the brainliest!!

Thank You!!

7 0

2 years ago

A rectangular sheet of cooper is twice as long as it is wide. From each corner a 3-inch square is cut out, and the ends are then

Galina-37 [17]

Answer:

length=24 inches and width=12 inches

Step-by-step explanation:

Let width of the rectangular sheet be x.

Then its length is twice as width = 2x

From each corner 3-inch square is cut to form a tray.

The length of the tray formed = l = 2x-6 (total length - length of 2 squares cut out from both ends)

The width of the tray formed = b = x-6 (total width - length of 2 squares cut out from both ends)

Height of the tray formed = h = 3 inches

Volume of the tray = l*b*h = (2x-6)*(x-6)*3 = 324 cubic inches.

$2x^{2}-18x+36=108\\x^{2}-9x-36=0\\(x-12)(x+3)=0\\x=12$

The length and width of the sheet is 24 and 12 inches respectively.

6 0

3 years ago

How do I find the midpoint

Hunter-Best [27]

To find the midpoint of a line use the midpoint formula which is M = (x1+x2/2 , y1 +y2/2) After plugging in the coordinates for your variables you should get (-1+5/2, -1+2/2) This simplifies to (2, 1/2) which is the coordinates for the middle point of the base XY.

5 0

2 years ago

X=8 units and h=5 units what is the area of the triangle

kykrilka [37]

Area=20. Ur welcome!

4 0

3 years ago

A family has an annual income of $25,200. of this, 1/4 is spent for food, 1/5 for housing, 1/10 for clothing, 1/9 for savi

Firlakuza [10]

To answer the question, you have to multiply $25,200 by 1/4 (portion allocated/ alloted for the tax -
$25,200 * 1/4 = 25,200/4 (then divide 25,200 by 4)
= $6,300
Therefore, the family spent $6,300 for taxes from their annual income of $25,200.

8 0

2 years ago