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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

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Given f(x)=x2+12x+26. Enter the quadratic function in vertex form in the box. f(x)=
makvit [3.9K]

Answer:

vertex(-6,-3)

Step-by-step explanation:

x^2+12+36-36+26

(x+6)^2-10

v=(-6,-10)

4 0
3 years ago
There are 438 students at a middle school. If 38% of the students participate in after school sports what would the number of st
umka21 [38]

Answer:166

Step-by-step explanation:438x.38=166

438 being the total amount of students

.38 being the 38% involved (moved percentage two to the left to make it a decimal)

6 0
3 years ago
IM STCK PLZ HELP!!! THANK YOU :)
lesya [120]

Answer:

x = 81, y = 68 and z = 99

Step-by-step explanation:

The external angle of a triangle is equal to the sum of the 2 opposite interior angles.

z is an exterior angle, thus

z = 63 + 36 = 99

x and z form a straight angle and are supplementary, so

x + z = 180, that is

x + 99 = 180 ( subtract 99 from both sides )

x = 81

The sum of the 3 angles in a triangle = 180°, thus

z + y + 13 = 180, that is

99 + y + 13 = 180

112 + y = 180 ( subtract 112 from both sides )

y = 68

7 0
3 years ago
How do you write the number 7.632 in expanded form
Alex Ar [27]
Expanded FormFind the Expanded Forms of:

Answer:
Standard Form:

7.362

Expanded forms can be written
like a sentence or stacked for
readability as they are here.

Expanded Numbers Form:

 7 + 0.3+ 0.06+ 0.002
Expanded Factors Form:

 7 ×1 +3 × 0.1+6 × 0.01+2 × 0.001
Expanded Exponential Form:

7 × 100+3 × 10-1+6 × 10-2+2 × 10-3
Word Form:

seven and
three hundred sixty-two thousandths
5 0
3 years ago
Read 2 more answers
A garden table and a bench cost $450 combined. The cost of the garden table is two times the cost of the bench. What is the cost
givi [52]
The cost of the bench is $150.

300÷2= 150

150+300= 450

Hope this helps! :)

\(^ ◇^)/
6 0
3 years ago
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