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bazaltina [42]
3 years ago
6

Help me please, evaluate the expressions below if (a=8), (b=-2) and (c=-9).

Mathematics
2 answers:
Naddika [18.5K]3 years ago
8 0

Answer:

<em>100 </em>

Step-by-step explanation:

Evaluate the expressions | - a² - 2bc | if a = 8, b = - 2 and c = - 9.

| - 8² - 2( - 2 )( - 9 ) | = | - 64 - 36 | = | - 100 | = <em>100</em>

maxonik [38]3 years ago
5 0

-(8^2) - 2(2)(9)=

-64-36

Final answer: -100

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8 0
3 years ago
This is my last question by the way
Leni [432]

Part A:

There are 25 blocks for the length, and the length of each is 5.5 inches. 5.5x25=137.5

There are 9 blocks for the height, and each is 2.75 inches. 2.75x9=24.75

Since we're trying to find how much longer the length is to the width, we find the difference. 137.5-24.75=112.75

So part A answer is <em><u>112.75 (or 112¾)</u></em>

Part B:

We know the length is 137.5 and the height is 24.75. To find how many times longer the length is, we need to divide to see how many 24.75 can go into 137.5.

137.5÷24.75=5.55

So the answer to part B is <u><em>5.55. Given the context, the answer would probably be 5, because that's how many entire height can fit.</em></u>

<u><em /></u>

Sorry if it's wrong lol

8 0
3 years ago
Alright last one- im very bad at this T-T 17 pointsss :)
Salsk061 [2.6K]

Answer:

you can find the answers here :)

Step-by-step explanation:

https://www.wolframalpha.com

https://www.symbolab.com

6 0
3 years ago
Read 2 more answers
9) v - 15 = -27 10) n + 16 = 9
Alik [6]

Answer:

9) v= -12  

10) n= -7

Step-by-step explanation:

9) v - 15 = -27

Add 15 from both sides

i.e. v - 15 + 15 = -27 + 15

v = -12

10) n + 16 = 9

Subtract 16 from both sides

i.e. n + 16 - 16 = 9 - 16

n = -7

Hope this helps!!!

5 0
3 years ago
What is 1/4 times 4​
ivanzaharov [21]

Answer:

97

Step-by-step explanation:

bc

8 0
3 years ago
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