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harkovskaia [24]
3 years ago
7

What is the negative square root of 361?

Mathematics
1 answer:
Stolb23 [73]3 years ago
6 0

the square root of 361 = 19

 so the negative square root would be -19

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To eliminate the y-terms and solve for x in the fewest steps, by which constants should the equations be multiplied by before ad
Kryger [21]

Answer:

The first equation should be multiplied by 9 and the second equation by −4

Step-by-step explanation:

Given the simultaneous equation

First Equation: 5x − 4y = 28

Second equation: 3x - 9y = 30

In order to eliminate y, we must make the coefficient of x in both expression to be equal.

To do that the first equation should be multiplied by 9 (negative value of the coefficient of y in equation 2)and the second equation by -4( (coefficient of y in equation 1)

7 0
3 years ago
QR has endpoints at Q (11, 13) and R(7, 14). Find the midpoint M of QR
cricket20 [7]

Answer:

M=(9, 13.5)

Step-by-step explanation:

What you do is you need to use the midpoint formula.

(x_1+x_2/2), (y_1+y_2/2).

(11, 13) and (7, 14) are your points and you put those numbers into the equation.

11 and 7 are x and 13 and 14 are y.

(11+7/2), (13+14/2)

M=(9, 13.5) is your answer.

3 0
3 years ago
at a grocery store, an uncooked beef roast is on sale for $5.99/lb. At the same grocery store, prepared roast beef is available
-Dominant- [34]

Answer:

$7.58/lb

Step-by-step explanation:

raw roast: $5.99 per lb

deli roast: $2.99 for 100g

We know the price per lb of the raw roast.

Let's find the price per lb of the deli roast.

1 lb = 454 grams

454 grams / 100 grams = 4.54

1 lb is 4.54 times 100 g

If we multiply the price of 100g of deli roast by 4.54, we get teh price per lb.

$2.99/lb * 4.54 = $13.57/lb

raw roast: $5.99/lb

deli roast: $13.57/lb

difference in price of 1 lb: $13.57 - $5.99 = $7.58

Answer: $7.58/lb

3 0
3 years ago
Read 2 more answers
Help please answer fast!!!
Alenkinab [10]
I think it’s 4.5
Hope this helps
6 0
3 years ago
The heights of a group of boys and girls at a local middle school are shown on the dot plots below.
sukhopar [10]

Answer:

The girls and boys heights are equal and none are shorter or taller.

You get this answer from identifying the numbers, seeing if there is any number that is larger or shorter than 40-60.

Hope this helped!

4 0
3 years ago
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