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3 years ago

How many people speak a foreign language? ~plz help I cannot get this wrong !

Mathematics

1 answer:

wolverine [178]3 years ago

6 0

I guess no the answer is 80 because 70 plus 10 is 80 or is it wrong

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Kyle is making a frame for a rectangular piece of art. The length of the frame is 3 times the width, as shown below. A rectangle

g100num [7]

Given :

A rectangle with a length of 3 x and height of x. If Kyle uses 18 feet of wood to make the frame.

To Find :

The length of the frame.

Solution :

We know, perimeter of the rectangle is given by :

$P=2(l+b)\\\\P=2(3x+x)\\\\P=8x$

Now, it is given that 18 feet of wood is used.

So,

$8x=18\\\\x = 2.25\ feet$

Therefore, length of frame is given by 3x = 6.75 feet.

Hence, this is the required solution.

5 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=8%20%5Csqrt%7B72%7D%20" id="TexFormula1" title="8 \sqrt{72} " alt="8 \sqrt{72} " align="absmid

Ghella [55]

Answer:

$8 \sqrt{72} = 8 \sqrt{3 \times 3 \times 2 \times 2 \times 2} \\ = 8 \times 3 \times 2 \times \sqrt{2} = 48 \sqrt{2}$

<h2><u>48√2</u> is the right answer.</h2>

7 0

3 years ago

1. Find the value of y in this equation 16y=164

polet [3.4K]

1). 16 Y= 164. ( then divided)
Y= 164 : 16
Y= 41 : 4
Y = 10 +1/4

2) 8z = 64. (then divided)
z= 64 :8
z= 8

3. D = A•B•C. ( divided)
D : A•B = C

C= D:AB

c. c= d divided by ab

4 0

3 years ago

Read 2 more answers

A researcher wants to obtain a sample of 30 preschool children consisting of 10 two-year-old children, 10 three-year-old, and 10

VMariaS [17]

Answer:

Quota sampling

Step-by-step explanation:

Quota sampling is a type of sampling method in which a representative data is collected from a group. It is a non probability based sampling method, a type of stratified sampling. Quota sampling is required when researchers are working with limited time and are without a sampling frame. Quota sampling method helps to determine the characteristics of a subgroup under research. It is an highly accurate method of sampling.

3 0

3 years ago

Labor economists have extensively researched the determinants of earnings. Invest-ment in human capital, measured in years of ed

never [62]

Answer:

Kindly check explanation for other solutions

Years, Inning and saves are statistically significant ; ERA is not.

Step-by-step explanation:

Earning for staying one additional year :

Multiply slope value of years * 1 = 0.052 * 1 * 100 % = 5.2% (earning increases by 5.2%)

Relives with 10 more saves :

10 * 0.0032 * 100% = 3.2% (earning increases by 3.2%)

Having 100 more innings :

100 * 0.00089 * 100% = 8.9%

If ERA is reduced by 1.5 ; earning will increase by (0.0085*100)% * 1.5 = 1.275%

B.) At 5% level of confidence :

α = 1.64

Years = 0.052/0.026=2

Inning = 0.00089/0.00020 = 4.45

Saves = 0.0032/0.0018 = 1.78

ERA = 0.0085/0.0168 = 0.51

Years, Inning and saves are statistically significant as they are greater than α ; As for ERA, it is not statistically significant (0.51 < 1.64)

8 0

3 years ago