All categories

3 years ago

A number increased by 3 is two times the number

1 answer:

7 0

Twice a number can be translated into '(2)(x)' or '2x'. Increased by 3 can be translated into '+ 3'. Is 7 can be translated into '=7'.

You might be interested in

If h(x) = 2x and g(x) = 3x2 + 1, what is h(g(x))?

Lady_Fox [76]

Answer:

h(g(x))=h(3x^2+1)=2(3x^2+1)=6x^2+2

8 0

3 years ago

Eighty percent of the students graduating from high school in a small Iowa farm town attend college. The town's chamber of comme

anyanavicka [17]

Answer: 0.6368

Step-by-step explanation:

Given : The proportion of z-test for population mean : $\hat{p}= 0.80$

Sample size : $n=45$

We assume that this is normally distributed.

The test statistic for population proportion :-

$z=\dfrac{\hat{p}-p_0}{\sqrt{\dfrac{p_0(1-p_0)}{n}}}$

Now, for $p_0=0.82$ , we have

$z=\dfrac{0.80-0.82}{\sqrt{\dfrac{0.82(1-0.82)}{45}}}\\\\\approx-0.35$

By using the standard normal distribution table , the probability that at least 82% of the surveyed students will be attending college will be :-

$P(p\geq0.82)=P(z\geq-0.35)\\\\=1-P(z$

Hence, the probability that at least 82% of the surveyed students will be attending college = 0.6368

4 0

3 years ago

Someone please help!!!

SSSSS [86.1K]

9514 1404 393

Answer:

A, C

Step-by-step explanation:

The values listed (least-to-greatest) are ...

{-5, -2, 0, 2}

All of these values are integers.

Not all of these values are between -4 and 2. (-5 is outside that range)

All of these values are less than 5.

The true statements are A and C.

8 0

3 years ago

110.0624 divided by 0.503

azamat

Answer:

218.81192

Step-by-step explanation:

5 0

3 years ago

What is half of 2 3/4? And how do I find it

Romashka-Z-Leto [24]

To find half of a number, divide it by 2.

2 3/4 ÷ 2

To divide, convert the mixed fraction into an improper fraction.

2 3/4 = 11/4

The problem becomes

11/4 ÷ 2/1

To divide, multiply by the reciprocal of the fraction on the right.

11/4 · 1/2 = 11/8

Answer:

$\frac{11}{8}$ or $1\frac{3}{8}$

7 0

4 years ago

Read 2 more answers