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k0ka [10]
3 years ago
6

Solve the following inequaltity. (x-8)^2(x+7)>0 What is the solution?

Mathematics
1 answer:
GREYUIT [131]3 years ago
8 0

(x-8)^2(x+7)>0 \\x\in(-7,8)

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3.5+2=2x-10help me HELP ME JIGGABOOS
Genrish500 [490]
3.5 + 2 = 2x - 10
5.5 = 2x -10
+10 +10
—————————
15.5 = 2x
—— ——
2 2

7.75 = x

7.75 is the answer
5 0
9 months ago
an 8 by 10 inch piece of cardboard cost $ 2.00. if the cost of the cardboard is proporcional to its area what is the cost of pie
denis23 [38]

Answer: $4

The cost of an 8x10 piece is $2, and 16x20 is just 2 times that amount, multiply the cost.

7 0
3 years ago
Q4.
goblinko [34]

The coding of the statistic is used to make it easier to work with the large sunshine data set

  • The mean of the sunshine is 3.05\overline 6
  • The standard deviation is approximately  <u>18.184</u>

<u />

Reason:

The given parameters are;

The sample size, n = 3.

∑x = 947

Sample corrected sum of squares, Sₓₓ = 33,065.37

The mean and standard deviation = Required

Solution:

Mean, \ \overline x = \dfrac{\sum x_i}{n}

The mean of the daily total sunshine is therefore;

Mean, \ \overline x = \dfrac{947}{30} \approx 31.5 \overline 6

s = \dfrac{x}{10 } - \dfrac{1}{10}

  • E(s) = \dfrac{Ex}{10 } - \dfrac{1}{10}

E(s) = \dfrac{31.5 \overline 6}{10 } - \dfrac{1}{10} = 3.05 \overline 6

  • The mean ≈ 3.05\overline 6

Alternatively

,The \ mean \  of \  the \  daily  \ total  \ sunshine,  \, s = \dfrac{31.5 \overline 6 - 1}{10 } = 3.05\overline 6

The mean of the daily total sunshine, \overline s ≈3.05\overline 6

  • Var(s) = Var \left(\dfrac{x}{10 } - \dfrac{1}{10} \right)

Var(s) = \left(\dfrac{1}{10}\right)^2 \times Var \left(x \right)

Therefore;

Var(s) = \left(\dfrac{1}{10}\right)^2 \times 33,065.37 = 330,6537

Therefore;

  • s = \sqrt{330.6537} \approx 18.184

The standard deviation, s_s ≈ <u>18.184</u>

Learn more about coding of statistic data here:

brainly.com/question/14837870

3 0
2 years ago
The number in front of the decimal point represents part of a unit while the
posledela

Answer:

False

Step-by-step explanation:

Because the numbers before the decimal is the whole number and the ones after arn't

6 0
2 years ago
Charmaine's Coffee shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Charmaine $5.75 per pound, a
DIA [1.3K]
Type A = $5.75 per pound
Type B = $4.55 per pound

1 set → 1 pound of Type A + 4 pounds of type B
1 set → 5.75 + 4(4.55)
1 set → $23.95

Number of sets = $526.90 ÷ 23.59 = 22

1 set → 1 pound of Type A
22 sets → 1 x 22 = 22 pounds of type A

Answer: 22 pounds of Type A
5 0
3 years ago
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