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3 years ago

Why would negative numbers not make sense for the values of variables

1 answer:

6 0

Negative numbers wouldn't make sense for values of the variables because the solution having a negative value is invalid.

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Jessica had m beads. She used 18 of them to make a necklace for her mom. Then she used the rest to make k bracelets for her frie

Y_Kistochka [10]

The expression to represent this would be (m-18)/k.

We first subtract the 18 beads she used in her mother's bracelet from her beginning number, m. We then divide our result by k, the number of bracelets she made for her friends.

3 0

4 years ago

The length of human pregnancies from conception to birth varies according to a distribution that is approximately normal with a

Oduvanchick [21]

218, 314 are the two values do the middle 95% of the lengths of all pregnancies fall.

8 0

3 years ago

Help !! Please I can’t find the answer

SVETLANKA909090 [29]

Answer:

$\large\boxed{r^2=(x+5)^2+(y-4)^2}$

Step-by-step explanation:

The equation of a circle:

$(x-h)^2+(y-k)^2=r^2$

(h, k) - center

r - radius

We have diameter endpoints.

Half the length of the diameter is the length of the radius.

The center of the diameter is the center of the circle.

The formula of a distance between two points:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Substitute the coordinates of the given points (-8, 2) and (-2, 6):

$d=\sqrt{(6-2)^2+(-2-(-8))^2}=\sqrt{4^2+6^2}=\sqrt{16+36}=\sqrt{52}$

The radius:

$r=\dfrac{d}{2}\to r=\dfrac{\sqrt{52}}{2}$

The formula of a midpoint:

$\left(\dfrac{x_1+x_2}{2},\ \dfrac{y_1+y_2}{2}\right)$

Substitute:

$x=\dfrac{-8+(-2)}{2}=\dfrac{-10}{2}=-5\\\\y=\dfrac{2+6}{2}=\dfrac{8}{2}=4$

$(-5,\ 4)\to h=-5,\ k=4$

Finally:

$(x-(-5))^2+(y-4)^2=\left(\dfrac{\sqrt{52}}{2}\right)^2\\\\(x+5)^2+(y-4)^2=\dfrac{52}{4}\\\\(x+5)^2+(y-4)^2=13$

5 0

3 years ago

To the nearest tenth, what is the area of the shaded segment when AG = 6 ft?

baherus [9]

A. 10.3 ft^2 should be the right answer

6 0

3 years ago

Read 2 more answers

A pair of Jeans has a marked price AED 800.

Bumek [7]

Answer:

640

Step-by-step explanation:

you say 100% = 800

what about 80%(i get 80% after substracting 100% that's marked price - 20% discount)

then u say 80×800÷100

4 0

3 years ago