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3 years ago

Which expression represents the sum of an unknown number and 22? A. B. C. D.

Mathematics

1 answer:

motikmotik3 years ago

5 0

" the sum " means add

x + 22 <== ur expression with x being the unknown number

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At a resting pulse rate of 75 beats per minute, the human heart typically pumps about 73 mL of blood per beat. Blood has a densi

Kaylis [27]

Answer:

There is approximately 5.475 liters of blood in the body.

Step-by-step explanation:

At a resting pulse rate of 75 beats per minute, the human heart typically pumps about 73 ml of blood per beat.

73 ml in liters = $73\times0.001=0.073$ liters

Now, 75 beats/min x 0.073 liters/beat = 5.475 liters/min

And 5.475 liters/min x 1 min/body = 5.475 liters/body

Hence, there is approximately 5.475 liters of blood in the body.

7 0

3 years ago

Common factors of 8xy⁴,6x²y,10x²y²

Citrus2011 [14]

Answer:

$2^{3}$ ×5×3× $x^{2}$ × $y^{4}$

Step-by-step explanation:

$8xy^{4}$ = $2^{3}$ × $x$ × $y^{4}$

6 $x^{2} y$ = 2×3× $x^{2}$ × $y^{}$

10 $x^{2} y^{2}$ = 2×5× $x^{2}$ × $y^{2}$

$2^{3}$ ×5×3× $x^{2}$ × $y^{4}$

4 0

2 years ago

CAn y’all PLEASEEEEE help me?

Nimfa-mama [501]

Answer:

option A is correct answer......

6 0

2 years ago

Read 2 more answers

Find the product of these complex numbers (8+6i)(-5+7i)

spayn [35]

Answer:

Step-by-step explanation:

= -40 + 56i -30i +42i

= 68i - 40

3 0

1 year ago

Please help asap<br><br> rewrite c + 1/4c as a single term with a fractional coefficient.

My name is Ann [436]

C is same thing as 1c

1c + 1/4c

(In simple words: Adding a whole to 1/4.)
1 + 1/4 = 1 1/4 or 5/4
same thing when having c:
1c + 1/4c = 1 1/4c or 5/4 c

Answer: 1 1/4c or 5/4c

3 0

3 years ago