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stellarik [79]
3 years ago
5

Which of the following is a prime number? Select one: A. 19 B. 20 C. 21 D. 22

Mathematics
2 answers:
7nadin3 [17]3 years ago
8 0

Answer:

A. 19

Step-by-step explanation:

The rest wouldn't be considered prime number. Only 19

nexus9112 [7]3 years ago
6 0

Answer: a. 19

Step-by-step explanation:

it only has 1 and itself

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The team ran
juin [17]

The team ran 2 miles.

Step-by-step explanation:

Step 1; The track is \frac{3}{4} miles long and the team ran 2\frac{2}{3} laps on it. To calculate the distance run we multiply the number of laps ran with the distance on each lap.

Distance run = Number of laps × Distance on each lap.

Step 2; We convert 2\frac{2}{3} from a mixed fraction into an improper fraction. To do this, we multiply the whole number with the denominator of the fraction and add with it the numerator of the same fraction whereas the denominator remains unchanged. To convert the fraction 2\frac{2}{3} = ((2 × 3) + 2) / 3 = \frac{8}{3}.

Distance run = Number of laps × Distance on each lap = \frac{8}{3} × \frac{3}{4} = \frac{8}{4} = 2 miles.

3 0
3 years ago
Read 2 more answers
In one day's work at the nursery, Dale and Mary together potted 74 plants. If Dale potted 48, how many did Mary pot?​
dybincka [34]
You would subtract the number of plants dale potted from the total amount. 74-48=26
6 0
3 years ago
Read 2 more answers
G(x)=x^3+5x h(x) =x+3 find (g+h)(x)
exis [7]

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

Step-by-step explanation:

The operations on functions can be performed as they are performed on polynomials

The addition of functions is used in the given question

Given

g(x)=x^3+5x\\h(x)=x+3

We have to find:

(g+h)(x)=g(x)+h(x)\\=x^3+5x+x+3\\=x^3+6x+3

So,

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

Keywords: Functions, operations on functions

Learn more about functions at:

  • brainly.com/question/4892332
  • brainly.com/question/4924817

#LearnwithBrainly

7 0
3 years ago
I Need help. Thanks.
PIT_PIT [208]

Answer:

A

Step-by-step explanation:

-2(5y-5)-3y\leq -7y+22

Expand parentheses:

-10y+10-3y\leq -7y+22

Move all y's to one side and numbers to the other:

-6y\leq 12

Divide both sides by -6. Since you are dividing both sides by a negative number, you need to flip the comparator:

y\geq -2

Hope this helps!

5 0
4 years ago
Read 2 more answers
Mulder and Scully are driving to the same town. Mulder leaves the office at 9​:30a.m. averaging 57mph. Scully leaves at 10​:00​a
koban [17]

Answer:

Scully will catch up with Mulder by 7:30 PM.

Step-by-step explanation:

Consider the provided information.

Mulder leaves the office at 9​:30a.m. averaging 57mph.

Scully leaves at 10​:00​a.m., following the same path and averaging 60 mph.

Distance covered by Mulder between 9:30 AM and 10:00 AM:

\frac{57}{2}= 28.5 miles

Let t is the time taken by Scully to catch up with​ Mulder.

After leaving office Scully needs to cover extra distance of 28.5 miles because Mulder leaves the office earlier.

Therefore total distance cover by them is:

28.5+57t=60t

28.5=60t-57t

28.5=3t\\t=9.5

Hence, it would take 9 hours 30 minutes to catch up Mulder.

10 am + 9 hours 30 minutes = 7:30 pm

Therefore, Scully will catch up with Mulder by 7:30 PM.

6 0
3 years ago
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