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kow [346]
3 years ago
15

CAN SOMEONE HELP ME PLEASEEEEEEE

Mathematics
1 answer:
Lemur [1.5K]3 years ago
6 0

Answer:

a) = 7x² + 4y²

b) = 3x + 7xy - 7

Step-by-step explanation:

a) = (9 - 2) x² + (-3 + 7) y²

= 7x² + 4y²

b) = (8 - 5) x + (3 + 4) xy - 7

= 3x + 7xy - 7

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Add.
Sidana [21]

Answer:

1\frac{7}{20}

Step-by-step explanation:

1. Convert the mixed number to an improper fraction to match the rest of the problem (this just makes it easier for now, the answer will still be a mixed number)

-1\frac{4}{5} becomes \frac{9}{5}

2. Re-write the new equation. When there is a "+" in front of a set of parentheses the expression doesn't change aside from removing the plus signs.

The new equation becomes

\frac{9}{5} - \frac{1}{4} -\frac{1}{5}

3. Calculate. Just work out the new expression.

The answer is \frac{27}{20}

4. Convert to a simplified mixed decimal.

27 goes into 20 once with seven left over, making the answer 1\frac{7}{20}

8 0
3 years ago
Jack was 8 years older than pricillla. Together their ages totaled 166. what are their ages
mylen [45]
The answer is 58 I think 166-8= 158
4 0
3 years ago
Read 2 more answers
and a list of numbers the pattern increases by 0.001 as you move to the right if the third number list is 0.0 64 what is the fir
Ksivusya [100]

Answer:

  0.062

Step-by-step explanation:

The numbers will decrease by 0.001 as you move the the left, so the list of numbers can be found as ...

  3rd number: 0.064

  2nd number: 0.064 -0.001 = 0.063

  1st number: 0.063 -0.001 = 0.062

7 0
4 years ago
What's a squared plus a squared
ad-work [718]

for example lets use 3^2 + 4^2, you add the main numbers, 3 and 4 to get 7, then there are still the exponents, the squared signs, they don't change, they stay as a two. If your problem required a single whole number, then you have to square the 7, 7*7 is 49, so that or 7^2 would be your final answer.
5 0
4 years ago
Read 2 more answers
You are asked to select a password that consists of 5 characters. Each of the characters can be any of the capital letters of th
grandymaker [24]

Answer:

00.546

Step-by-step explanation:

6 0
3 years ago
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