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natta225 [31]
3 years ago
5

-2x^2y, where x = -1 and y = 5

Mathematics
2 answers:
Natali [406]3 years ago
8 0

Answer:

-10

Step-by-step explanation:

-2x²y = -2(-1)²(5) = -2 × 1 × 5 = -10

Sever21 [200]3 years ago
4 0
I hope this helps answer your question.

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Dr. Hoover, a pediatrician, has 3 annual checkups and 2 sick visits scheduled next Tuesday,
Jet001 [13]

Dr. Hoover allot his time on Tuesday for an annual checkup is 147 minutes and for a sick  visit is 42 minutes ​(Total 189 minutes)

On Wednesday appointment,  he allot his time for an annual checkup is 147 minutes and for a sick  visit is 21  minutes ​ (Total 168 minutes)

solution

Let us assume, minutes for annual checkup denoted as x and

minutes for sick visit denoted as y

The equation of Tuesday visit is       3x + 2y = 189 minutes ------ 1

The equation of Wednesday visit is    3x + 1y = 168 minutes ------ 2

by changing the signs of the equation 2  and  subtract it from the equation 1 we will get   1y = 21 minutes

to substitute y =1 in the equation 2 we get

3x + 2(21) = 189

3x + 42 = 189

3x = 189 - 42

3x = 147

x = 147 ÷ 3 = 49 minutes

then now we have substitute both x = 49 and y= 21 in equation ----- 2

we will prove that 3x + 2y = 189  = 3 (49) + 2(21) = 189 147+ 42 = 189 minutes

so the Tuesday appointment , the time allotted for an annual checkup is 147 minutes and for a sick  visit is 42 minutes ​(Total 189 minutes)

On Wednesday appointment,  the time allotted for an annual checkup is 147 minutes and for a sick  visit is 21  minutes ​ (Total 168 minutes)

         

6 0
3 years ago
The data set represents the total number of tickets each person purchased for a play
expeople1 [14]

Answer: would be 10


Step-by-step explanation:


3 0
3 years ago
Will mark BRAINLIEST
balu736 [363]

Answer:

(-4,22)

Step-by-step explanation:

is the right answer

3 0
3 years ago
Read 2 more answers
This is due in an hour please be quick!!​
erma4kov [3.2K]

Answer:

106 m^2

Step-by-step explanation:

First multiply the shaded area:

12 * 10 = 120

Then multiply the white space:

7 * 2 = 14

Then subtract the white space from the shaded area to find the area of only the shaded area.

120 - 14 = 106

Final answer: 106 m^2

I hope this helps!

6 0
2 years ago
Read 2 more answers
Solve the equation.<br> x² =96<br><br> A 4/6<br><br> B 16/6<br><br> C 9<br><br> D 9,-9
alexgriva [62]

Answer:

x = ± 4\sqrt{6}

Step-by-step explanation:

Given

x² = 96 ( take the square root of both sides )

x = ± \sqrt{96} = ±  \sqrt{16(6)} = \sqrt{16} × \sqrt{6} = ± 4\sqrt{6}

3 0
3 years ago
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