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lesantik [10]
3 years ago
8

Which of the following demonstrates the commutative property across multiplication for 2 × 10 × 7        A. 2 + 10 × 7   B. 2 ×

(10 × 7)   C. 10 ×7 × 2   D. (2 × 10) × 7
Mathematics
2 answers:
Yuliya22 [10]3 years ago
3 0

The correct answer is C. 10×7×2

jolli1 [7]3 years ago
3 0

Answer:

Option C is correct

10 \times 7 \times 2

Step-by-step explanation:

Commutative property of multiplication states that you can multiply number in any order.

For example:

2 \times 3  = 3 \times 2

3 \times 4 \times 5 = 4 \times 5 \times 2

Given that:

2 × 10 × 7

By definition Commutative property of multiplication,

⇒10 \times 7 \times 2

Therefore, 10 \times 7 \times 2 demonstrates the commutative property across multiplication for 2 × 10 × 7

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Common factors of 28 and 40
Nady [450]
28: 1, 2, 4, 7, 14, 28

40: 1, 2, 4, 5, 8, 10, 20, 40

The common factors are 1, 2, and 4.

You can use a factor rainbow to help you find the factors (:
7 0
3 years ago
ANSWER HURRY PLSSSSSSSSSSSSSS
Andrews [41]

Answer:

Its a function

Step-by-step explanation:

x cant be the same

7 0
2 years ago
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In a certain country the life expectancy for women in 1990 was 45 and in 2000 it was 85?years. Assuming that life expectancy bet
Darya [45]

Answer:

49145 years

Step-by-step explanation:

In a certain country the life expectancy for women in 1990 was 45 and in 2000 it was 85?years.

Assuming that life expectancy between 2000 and 2100 increases by the same percentage as it did between 1900 and 2000,what will life expectancy be for women in 2100?

In 10 years, the expectancy increased by 85/45 = 17/9

between 2000 and 2100, it will increas by 10 time 10 years, so expected expectancy is  85*(\frac{85}{45})^{10} = 49145  years

4 0
3 years ago
Please help! I keep on getting the wrong answer!
valentina_108 [34]

Answer:

CODE: 1977.98

Step-by-step explanation:

A.

(To get the closest answer, round the circumference to the nearest ten thousandth.)

C = 2(3.14)r                      Circumference formula: C = 2πr

C = 2(3.14)(3)

C = 18.84

B.

A = (3.14)r²

A = (3.14)(3)²

A = (3.14)(9)

A ≈ 28.26

C. (It's asking for the circumference.)

C = 2(3.14)r

C = 2(3.14)(58)

C ≈ 364.24

D. (It's a linear pair, which is 180 degrees.)

4x + 2x = 180

6x = 180

x = 30

m∠ABD = 4x

m∠ABD = 4(30)

m∠ABD = 120°

E. (∠GHI & ∠JHK are vertical angles, so they are congruent.)

x + 7 = 3x - 21

28 = 2x

14 = x

F. (x = 14)

m∠JHK = 3x - 21

m∠JHK = 3(14) - 21

m∠JHK = 42 - 21

m∠JHK = 21°

G. (Supplementary - two angles that add up to 180 degrees.)

180 - 84

= 96°

CODE: E(C - D) - F(G - B) - A

CODE: 14(364.24 - 120) - 21(96 - 28.26) - 18.84

CODE: 14(244.24) - 21(67.74) - 18.84

CODE: 3419.36 - 1422.54 - 18.84

CODE: 1977.98

8 0
2 years ago
What goes in the blanks?
GenaCL600 [577]

Answer:

56/40 + 15/40 = 71/40

Step-by-step explanation:

3 0
2 years ago
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