3 years ago

Which of the following is an example of categorical data?

Mathematics

1 answer:

djyliett [7]3 years ago

5 0

Height, weight, and income since they all deal with numbers

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Determine whether the graph of the quadratic function y = –3x2 + 2x + 5 opens upward or downward. Explain.

givi [52]

Answer:

The graph of the function opens downwards.

Step-by-step explanation:

The graph opens upward if the coefficient of x^2 is higher than 0.

But, the coefficient of x^2 (-3) is less than 0.

So the graph of the function opens downwards.

4 0

3 years ago

What is the slope of the line?

posledela

Answer:

-2

this eq. can be simplified to -

y = 5 - 2x

we know that the coefficient of x is the slope

therefore , -2 is the slope

7 0

3 years ago

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19. During a 2 3/4 hour assembly, each speaker spoke for 1/4 of an hour. How many speakers were there?

atroni [7]

Answer:

11 speakers

Step-by-step explanation:

2 3/4 ÷ 1/4

11/4 ÷ 1/4

11/4 x 4/1 = 44/4 = 11

6 0

3 years ago

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If a number is added to the numerator of 7/8 and the same number is subtracted from the denominator, the result is 4. Find the n

Alisiya [41]

Answer:

The number is 5.

Step-by-step explanation:

Call the number n. Write the problem as an equation:

$\frac{7+n}{8-n}=4\\7+n=(8-n)4=32-4n\\5n = 25\\n=5$

The number is 5.

3 0

3 years ago

Find the distance between points M (6,16) and Z (-1,14) to the nearest tenth, please help step by step

insens350 [35]

The distance between 2 points P(a, b) and Q(c,d) is given by the formula:

$\displaystyle{d= \sqrt{(b-d)^2+(a-c)^2}$ ,

Apply the formula for the points M(6, 16) and Z(-1, 14):

$\displaystyle{d= \sqrt{(16-14)^2+(6-(-1))^2}= \sqrt{2^2+7^2}= \sqrt{4+49}= \sqrt{53}\approx 7.28$

which rounded to the nearest tenth is 7.3 (units)

Answer: 7.3 units

3 0

3 years ago