MATHEMATICS HIGH SCHOOL

A researcher who is studying voting habits chose 650 registered voters at random, shortly after the 2016 presidential election. Of these voters, 74% said they had voted in the election. However, election records show that only 58% of registered voters voted in the election. Which of the following statements is true? Seventy-four percent is a sample and 58% is a population. Seventy-four percent and 58% are both statistics. Seventy-four percent is a statistic and 58% is a parameter. Seventy-four percent is a parameter and 58% is a statistic. Seventy-four percent and 58% are both parameters.

Answers

Answer 1
Answer:

Step-by-step explanation:

A statistic is a percentage of a sample.

A parameter is a percentage of a population.

So 74% is a statistic and 58% is a parameter.

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A bottle of iron supplement has 45g of iron in 330ml of solution. How many grams of iron are in100ml of solution?

Answers

Answer:

45 * 100 / 330 = amount in 100 ml of solution

13.6363636364  grams

Step-by-step explanation:

What's the length of one leg of a right triangle if the length of the hypotenuse is 25 units and the length of the other leg is 15 units? A. 10 units B. 20 units C. 24.7 units D. 29.2 units

Answers

the length of the hypotenuse is 25 units and the length of the other leg is 15 units

To find the length of one leg of a right triangle we apply Pythagorean theorem

(one leg)^2 = hypotenuse ^2 - other leg ^2

Let x be the length of one log

hypotenuse = 25

other log = 15

x^2 = 25^2 - 15^2

x^2 = 625 - 225

x^2 = 400

Take square root on both sides

x = 20

The length of one leg = 20 units

a six-foot-tall tent standing next to a cardboard box cast a nine foot Shadow if the cardboard box cast a shadow that is 6 foot long and how tall is it

Answers

I think it's 3 foot long but I'm not sure...

Answer: 9ft

Step-by-step explanation:

9 x 6 = 54 ÷ 6 = 9

Israel planted 4 tomato seeds in his garden. Then he planted flower seeds in each of his three neighbor's gardens. Which expression represents the number of seeds Israel planted?A. 4s + 3
B. 4 + 3s
C. 4 – 3s
D. 3s – 4

Answers

The expression that represents the number of seeds that has been planted by Israel is 4 + 3s. Hence, Option B is correct.

What is an expression?

A finite combination of symbols that are well-formed in accordance with context-dependent principles is referred to as an expression or mathematical expression in mathematics.

Mathematical symbols can represent variables, operations, functions, brackets, punctuation, and grouping to help specify the logical syntax and order of operations.

But in contemporary mathematics, and particularly in computer algebra, formulae are seen as expressions that can be evaluated as true or false, depending on the values given to the variables present in the expressions.

In the garden, Israel sowed 4 tomato seeds. Then Israel scattered flower seeds throughout the gardens of the three neighbors. Here neighbors will be denoted as x. For this the most suitable expression will be 4 + 3s.

Therefore, Option B is correct.

Learn more about expression from here:

brainly.com/question/14083225

#SPJ2

Answer:

B. 4+3s

Step-by-step explanation:

Please help me with this, i just need this question and i'll be able to graduate

Answers

easey, just multiply everybody and add the exponents for like terms remember
(a^m)(a^n)=a^(m+n)
also
(ab)c=a(bc)
so

-4x³y²(7xy⁴)=
-4*x³*y²*7*x*y⁴=
-4*7*x³*x*y⁴*y²=
-28*x⁴*y⁶
-28x⁴y⁶

Which value is equivalent to 8.7% written as a decimal? A.0.87

B.8.7

C.0.087

D.87.0

Answers

percent mean parts out of 100
8.7%=8.7/100=0.87/10=0.087
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