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3 years ago

A number, x, multiplied by 4 is subtracted from the difference of the same number and 65

1 answer:

5 0

X - 65 - 4x.
3x - 65.
I assume that you subtract x times four (a number, x, multiplied by 4) FROM the difference of x and 65 (the same number and 65).
Hope this helps!

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PLEASE ANSWER ASAP SHOW WORK

guapka [62]

x^2z
--------- ................this is your answer
3 y

7 0

4 years ago

Determine if the ordered pairs are a function <br> [(1,3) (-1,3) (0,7) (2,5)]<br> Yes No

Olegator [25]

Answer:

Yes

Step-by-step explanation:

It is a function because the x's are not repeating.

The x's are 1, -1, 0, and 2. They are not repeating.

Remember it is a function if the x's don't repeat.

Hope this helps ya!!

5 0

3 years ago

If the endpoints of the diameter of a circle are (8, −6) and (4, −2), what is the standard form equation of the circle?

Gennadij [26K]

We do the midpoint formula to find the center of the circle to get the left side of the equation.

Midpoint = [(X₁ + X₂) / 2 , (Y₁ + Y₂) / 2]

Now plug in:

[(8 + 4) / 2 , (- 6 - 2) / 2]
(12 / 2 , - 8 / 2)
(6, - 4)

The center of the circle is (6, -4)

Now we plug it into the equation of a circle:

(x - h)² + (y - k)² = r² where (h, k) is the center of the circle and r is the radius.

(x - 6)² + (y + 4)² = r² is the left side of the equation. This will eliminate options A and C

Now we do the distance formula using the center and an endpoint to get the radius. The formula for distance is:

√((X₂ - X₁)² + (Y₂ - Y₁)²)

We plug in using either of the endpoints.

√((4 - 6)² + (- 2 - (- 4))²)
√((-2)² + 2²)
√(4 + 4)
√8

√8 is your radius

(√8)² = 8

Your correct answer is (x - 6)² + (y + 4)² = 8, Option D

3 0

4 years ago

If anyone can help that would be great

rodikova [14]

Answer:

I'm not sure for my answer but is B

I'm gonna put the steps

Step-by-step explanation:

x2−4x−12as(x+p)(x+q)

=−12apqs−12apsx−12aqsx−12asx2+x2−4x

4 0

3 years ago

A seven-year medical research study reported that women whose mothers took the drug DES during pregnancy were twice as likely to

Artyom0805 [142]

Answer:

The classification of the set of circumstances is presented in the following subsections of the understanding.

Step-by-step explanation:

A 7-year health research project revealed that individuals for whom the mom took DES throughout pregnancy seem to have been twice as probable as women for whom the mothers didn't use the medication to establish tissue irregularities that could cause cancer.

(a)

Women with whom the mothers have taken DES throughout pregnancy as well as women where its mothers haven't taken DES during pregnancy.

(b)

The information collected seems to have been a sample or survey.

(c)

A sampling unit of 3980 (women) showed that performance 63 industrialized tissue irregularities that could contribute to disease (cancer) in the proportion of females with whom the mom brought the powerful DES all through pregnancy.

The proportion of abnormalities in tissues established by females does seem to be:

= $\frac{63}{3980}$

= $0.015829$

Of every thousand women, 15.8 established tissue abnormalities.

3 0

3 years ago