3 years ago

I really need help please hurry

Mathematics

1 answer:

xeze [42]3 years ago

7 0

Its the fırst one or the thırd one

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Which equation is correct? 2x+38) - 5x +4 A 7x - 41 B 7x + 41 C 36x - 2<br>or just write your own

bija089 [108]

Answer:

$-3x+42$

Step-by-step explanation:

$(2x+38) - 5x +4$

$2x+38 - 5x +4$

$2x+38+ - 5x +4$

$2x+-5x+38+4$

$-3x+42$

5 0

4 years ago

What is the approximate age of a woman whose normal systolic pressure measures 125 mm Hg?

sashaice [31]

The approximate age of a woman whose normal systolic pressure measures 125 mm Hg is 31

The function is given as:

$P(A) = 0.006A^2 - 0.02A + 120$

When the normal systolic pressure is 125, it means that:

$P(A) = 125$

So, we have:

$125 = 0.006A^2 - 0.02A + 120$

Subtract 125 from both sides of the equation

$0= 0.006A^2 - 0.02A + 120 -125$

$0= 0.006A^2 - 0.02A - 5$

Rewrite the equation as:

$0.006A^2 - 0.02A - 5 = 0$

Using a graphing calculator, we have:

$A = \{30.58, -27.25\}$

But age cannot be negative.

So, we have:

$A = 30.58$

Approximate

$A =31$

Hence, the age of the woman is 31

Read more about quadratic functions at:

brainly.com/question/11441586

8 0

2 years ago

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Solve for y<br> 5x + y = -10

EleoNora [17]

You would subtract 5x from y so y=5x-10

6 0

4 years ago

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Find the distance between points A (5.-7) and B (-3,-4)

Strike441 [17]

It would help if you had a four quadrant graph, but the distance would be (8,11).

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3 years ago

According to Ohm's law, the electric current I, in

atroni [7]

Answer:

4 ampers

Step-by-step explanation:

WHEN 12 VOLTS ARE APPLIED, THE CURRENT IS 4 AMPERES.

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3 years ago