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castortr0y [4]
3 years ago
10

Given that a = -2 and b = -3, evaluate a(a² + b²)

Mathematics
1 answer:
abruzzese [7]3 years ago
4 0

Answer:

{ \tt{a( {a}^{2}  +  {b}^{2} )}}

Substitute the variables:

{ \tt{ - 2( {( - 2)}^{2}  +  {( - 3)}^{2} }} \\  = { \tt{ - 2(13)}} \\  = { \tt{ - 26}}

{ \tt{ \underline{ \blue{becker{ \green { \:  \: jnr}}}}}}

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A merchant buys a television for $125 and sells it for $75 more. what is the percent of markup?
guajiro [1.7K]
Since he sold it for $75 more,

% Mark Up = Mark Up/ Cost Price   * 100%

% Mark Up =   75 / 125 * 100%
            
                   =   0.6  * 100% = 60%

Percent Mark Up = 60%.

Hope this explains it.

4 0
2 years ago
A stem-and-leaf plot is made using the following values. Which does NOT correctly represent a line of stem and leaves from the p
melomori [17]

Answer:

7

Step-by-step explanation:

70, 72, 72, 72, 74, 76

There are 6 numbers that have 7 as a 10. There are only 5 ones on the leaf of the stem 7. The 6 is missing.

5 0
2 years ago
If m + n = 7 and 2n - 3m = 6, what is the value of 3n - 2m ?
S_A_V [24]
Since m + n = 7 we know m = 7-n. So now we have 2n - 3(7-n) = 6. From this we get n = -3. So now we know m - 3 = 7 so m = 10. So now we have 3(-3) + 2(10) = ? and this comes out as 11
8 0
3 years ago
Read 2 more answers
1. Simplify - 5b • 4 + 6a - 4a.4-45 + 5-4.-13a - 1
NISA [10]

answer: -8.6a-2b-45

6 0
2 years ago
What's the midpoint between (1,-7) and (-1,-23)
Alik [6]
Answer: (0,-15)

--------------------------------------------------

Explanation:

Add up the x coordinates to get 1+(-1) = 0. Divide this sum in half to get 0/2 = 0. Therefore the x coordinate of the midpoint is 0.

Repeat for the y coordinates. First add the y coordinates to get -7+(-23) = -30. Then divide that result in half to get -30/2 = -15. So the y coordinate of the midpoint is -15.

Overall, the midpoint is (0,-15).

8 0
2 years ago
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