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2 years ago

Answer this question i need help!! i’ll give brainly

Mathematics

1 answer:

frez [133]2 years ago

5 0

Answer:

A. The color of fire when different metals are burned.

Explanation:

Qualitative data is data that relates to a quality or characteristic of an object, and does not include any numbers.

example: colour, taste, survey answers

Quantitative data, on the other hand, relates to measurements and counting of variables, and uses numbers to convey value.

example: height of a person, number of coins

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Jenny is running for president of the chess club, and she received 36 votes. There are 50 members in the club. What percentage o

grandymaker [24]

Answer:

$72\%$

Step-by-step explanation:

$\frac{36}{50}=\frac{72}{100}=0.72=72\%$

8 0

2 years ago

Read 2 more answers

Write the fraction as a percent. 37/50

aleksklad [387]

74% is the correct answer

4 0

3 years ago

A recent poll of 1500 new home buyers found that 60% hired a moving company to help them move to their new home. Find the margin

Mrac [35]

Answer:

The margin of error M.O.E = 2.5%

Step-by-step explanation:

Given that;

The sample size = 1500

The sample proportion $\hat p$ = 0.60

Confidencce interval = 0.95

The level of significance ∝ = 1 - C.I

= 1 - 0.95

= 0.05

The critical value:

$Z_{\alpha/2} = Z_{0.05/2} \\ \\ Z_{0.025} = 1.96$ (From the z tables)

The margin of error is calculated by using the formula:

$M.O.E = Z_{\alpha/2} \times \sqrt{\dfrac{\hat p(1 -\hat p)}{n}}$

$M.O.E = 1.96 \times \sqrt{\dfrac{\hat 0.60(1 -0.60)}{1500}}$

$M.O.E = 1.96 \times \sqrt{\dfrac{0.24}{1500}}$

$M.O.E = 1.96 \times \sqrt{1.6 \times 10^{-4}}$

M.O.E = 0.02479

M.O.E ≅ 0.025

The margin of error M.O.E = 2.5%

8 0

3 years ago

What is the area of the figure?

Scrat [10]

Answer:

15 sq. cm.

Step-by-step explanation:

Each of the full squares are 1 so each of the half squares are .5

There are 12 full squares and 6 half squares. If you add those half squares you will get 15 sq. cm.

3 0

4 years ago

Read 2 more answers

Write the equation of the line that is perpendicular to 4x - 3y = 6 and passes through (4, -2)

Svetlanka [38]

Perpendicular is slope multiplies to -1
for
ax+by=c
slope=-a/b

4x-3y=6
-a/b=-4/-3=4/3
perpendicular to 4/3 is -3/4

point slope form
y-y1=m(x-x1)
for slope=m
a point is (x1,y1)

point (4,-2)
slope is -3/4
y-(-2)=-3/4(x-4)
y+2=-3/4(x-4)
or converted
y=-3/4x+1
or
3x+4y=4

5 0

3 years ago