1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
siniylev [52]
3 years ago
13

Which expression is equal to 7(1+3) ?7+217+31+217+4​

Mathematics
1 answer:
Marysya12 [62]3 years ago
8 0

The right answer is first option: 7+21

Step-by-step explanation:

Given expression is;

7(1+3)

In mathematics, the term outside is multiplied by each term inside the bracket, therefore, in this expression;

7(1+3)\\7*1+7*3\\7+21\\

The given expression 7(1+3) is equals to 7+21.

The right answer is first option: 7+21

Keywords: multiplication, addition

Learn more about addition at:

  • brainly.com/question/9527632
  • brainly.com/question/9533500

#LearnwithBrainly

You might be interested in
A medical website states that 40% of U.S. adults are registered organ donors. A researcher believes that the proportion is too h
Marat540 [252]

Answer:

P value is 0.1932

conclusion is that find value P greater than hypothesis test at the 0.05 level

Step-by-step explanation:

Given data

registered organ donors P  = 40%

sample n = 200

registered organ donors x = 74

hypothesis test α = 0.05

to find out

P-value and state a conclusion

solution

we take a trail p less than 40 % i.e 0.40

so p = x/n

p = 74 / 200 = 0.37

so we find here Z value  i.e

Z = p - P / √(PQ/n)

here Q = 1-p = 1-0.40 = 0.60

so Z = 0.37 - 0.40 / √(0.40×0.60/200)

Z = - 0.866

so p value for Z (-0.866) from z table

P value is 0.1932

and conclusion is that find value P greater than hypothesis test at the 0.05 level

6 0
3 years ago
Read 2 more answers
Help!!!
choli [55]

Answer:

Step-by-step explanation:

y - 5 > 2x - 10 \\\ y > 2x - 10 + 5 \\\ y > 2x - 5

If x = 0:

y > 2 × 0 - 5

y > - 5

If x = 3:

y > 2 × 1 - 5

y > 1

The coordenates (3, 1) and (0, -5) are not included.

Alternative A

I hope I helped you.

5 0
3 years ago
Read 2 more answers
Triangles J K L and X Y Z are shown. Angles K J L and Y X Z are right angles. The length of Y X is 10. The length of hypotenuse
pickupchik [31]

ΔJKL and ΔXYZ CANNOT be congruent triangles because: the hypotenuse of one triangle is equal in length to the leg of the other triangle.

<h3>What are Congruent Triangles?</h3>

Congruent triangles are triangles whose corresponding sides are congruent to each other.

The hypotenuse of triangle JKL(KL = 10) is congruent to a leg of triangle XYZ (YX = 10). This implies that they cannot be congruent triangles.

Therefore, ΔJKL and ΔXYZ CANNOT be congruent triangles because: the hypotenuse of one triangle is equal in length to the leg of the other triangle.

Learn more about congruent triangles on:

brainly.com/question/11457412

3 0
1 year ago
Wavelength and Frequency
makvit [3.9K]

Answer:

D. 2 to 1

Step-by-step explanation:

I calculated it logically

5 0
3 years ago
Read 2 more answers
Find seven ordered pairs to the equation y=8 - x2. <br><br> NEED IT ASAP PLEASE!!!
zalisa [80]

-3   |  9-8=1       | (-3, 1)

-2   | 4-8= -4      | (-2, -4)

-1   | 1-8=-7       | (-1, -7)

0.  | 0-8=-8       |  (0, -8)

1   | 1-8=-7       |  (1, -7)

4 0
2 years ago
Read 2 more answers
Other questions:
  • A time capsule was sealed in 1940 and will be opened on the same date in 2018.How long will the time capsule remain sealed
    11·1 answer
  • WRITE 3/10 AS THE PRODUCT OF A WHOLE NUMBER AND A FRACTION. EXPLAIN YOUR ANSWER.
    12·2 answers
  • Helen lost her marbles. But then she found them and put them in 4 bags with m marbles in each bag. She had 3 marbles left over t
    7·1 answer
  • A catering company loses $110 as a result of a delay.
    9·1 answer
  • If y = x - 6 were changed to y = x + 8, how would the graph of the new function compare with the first one?
    8·2 answers
  • Algebra problem, please help
    14·2 answers
  • What's the slope of<br> (4,5) &amp; (-1,-5)<br> helppppp
    12·2 answers
  • A circle has a diameter of 7.2. What is the circumference of the circle rounded to the near tenth of an inch
    10·1 answer
  • Kate bought 6 CDs and 2 DVD for $56.
    10·2 answers
  • Solve using the lcd:<br> 1/x = 1/5 + 5/4x
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!