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4 years ago

It's a multiple choice question

Mathematics

2 answers:

Sophie [7]4 years ago

6 0

Answer:d or c

Step-by-step explanation:

andriy [413]4 years ago

5 0

To make sure we don't have negatives under the square root, we specify that $x \ge 0$ (x is greater than or equal to 0). We'll use this fact later on

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Start with the given inequality $\sqrt{x} \le 7$ and square both sides to get $x \le 49$ . Couple this with the fact that $x \ge 0$ means we have this compound inequality $0 \le x \le 49$

What does this mean? It means that we can pick any value from 0 to 49 (including both endpoints) and it will be a solution to the inequality. This applies to the values 49, 48 and 44

Answers: Choice C, Choice D, Choice E

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1. The sample life insurance premium table illustrates the monthly premium for every $25,000 of coverage.

Vlad1618 [11]

Answer:

A. $23
B. 0.997359

Step-by-step explanation:

1. The policy rates in the table are for $25000 of insurance. Lydia wants $100,000 of insurance, which is 4 times the amount quoted in the table. Hence her premium will be 4 times the quoted premium. Her spot in the table is in the age 24–30 row and the Female Non-Smoker column. Lydia's premium will be 4×$3.50, or $14 per month.

She wants 2 times the amount quoted in the table ($50,000) of insurance for her spouse, so the premium will be 2 times that quoted in the table. His spot in the table is in the age Under 24 row and the Male Smoker column. The premium for his insurance will be 2×$4.50, or $9 per month.

The total of the two premiums will be $14 = 9 = $23 per month.

___

2. The probability of living another year is the complement of the probability of dying. For a 35–44 year-old male, the probability of dying is 264.1/100,000, about 2.641×10^-3. The complement of that is ...

1 - 0.002641 = 0.997359

6 0

4 years ago

A random survey of seventh- and eighth-grade students was conducted to find out how many hours are spent doing homework each nig

Radda [10]

Answer:

Eighth graders have the greater median

Step-by-step explanation:

In box-and-whisker plots, the median is the line in the middle of the box. The median for the seventh graders is about 3.5 and the median for the eighth graders is 4. Therefore, the eighth graders have a greater median.

5 0

3 years ago

Letv⃗ 1=⎡⎣⎢012⎤⎦⎥,v⃗ 2=⎡⎣⎢1−20⎤⎦⎥,v⃗ 3=⎡⎣⎢30−1⎤⎦⎥be eigenvectors of the matrix A which correspond to the eigenvalues λ1=−3, λ2=2

dem82 [27]

What is this????????????????????

6 0

3 years ago

Use right triangle DCB to find the trig values for angle D.

n200080 [17]

Sin D= opp./hyp. = 35/37
cos D= adj./hyp. = 12/37
tan D= opp./ adj. = 35/12

3 0

3 years ago

Read 2 more answers

Which of the following equations matches the function shown above?

Ksenya-84 [330]

So, the function is obviously shifted up by 1 so it rules out A and B, and we also see that the period is 4pi rather than 2pi, and using the fact that:

$\frac{2\pi}{b}=4\pi \implies \frac{b}{2\pi}=\frac{1}{4\pi}\implies b=\frac{1}{2}$

Now that we know our b value, we see that the correct answer would be C.

3 0

3 years ago