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mote1985 [20]
3 years ago
8

How do I do thisplz help​

Mathematics
2 answers:
Law Incorporation [45]3 years ago
6 0

Answer:

6

Step-by-step explanation:

Use order of operations.

42/(15-2^3)

Exponents in Parentesis

42/(15-8)

Subtraction inParenthesis

42/7

Division

6

WINSTONCH [101]3 years ago
3 0

Answer:

6

Step-by-step explanation:

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in 10 minutes a heart beats 700 time how many minutes will a heart beat 140 times? At what rate can a heart beat?​
posledela

Answer:

A heart will beat 140 times in 2 minutes

Step-by-step explanation:

700 ÷ 10 = 70

140 ÷ 70 = 2

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Step-by-step explanation:

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3 years ago
The product of 15 and the difference between 5 and - 7<br> A numerical expression
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2 years ago
Which of these absolute values is the greatest? a. |140| b. |-104| c. |104| d. |-20
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/////////////////

5 0
2 years ago
Read 2 more answers
Help? Solve the system of equations.<br><br> y = 3x<br> y = x2 + 3x – 16<br> solutions: ( );( )
mote1985 [20]

Answer:

(- 4, - 12 ) , (4, 12 )

Step-by-step explanation:

Given the 2 equations

y = 3x → (1)

y = x² + 3x - 16 → (2)

Substitute y = x² + 3x - 16 into (1)

x² + 3x - 16 = 3x ( subtract 3x from both sides )

x² - 16 = 0 ( add 16 to both sides )

x² = 16 ( take the square root of both sides )

x = ± \sqrt{16} = ± 4

Substitute these values into (1) for corresponding values of y

x = - 4 : y = 3 × - 4 = - 12 ⇒ (- 4, - 12 )

x = 4 : y = 3 × 4 = 12 ⇒ (4, 12 )

6 0
3 years ago
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