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Sophie [7]
3 years ago
5

Simplify 4a – 7b + 2ab – a + b.

Mathematics
2 answers:
Ivenika [448]3 years ago
6 0

Answer:

- ab and 15ab

Step-by-step explanation:

inysia [295]3 years ago
4 0

Answer:

3a - 6b + 2ab

Step-by-step explanation:

We can group the a's and b's like this:

4a - 7b + 2ab - a + b

4a - a - 7b + b + 2ab

3a - 6b + 2ab

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Answer:

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Step-by-step explanation:

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3 years ago
Please answer this correctly
MAVERICK [17]

Answer:

1:50 PM

Step-by-step explanation:

Left school at 10:38 AM,

took them 51 minutes,

38+51=89,

89-60=29,

so when they drove to the museum, it was 11:29 AM.

From here, they stayed at the museum for 1 hour and 26 minutes,

so they stayed at the museum until 12:55 AM since 29+26=55.

Now, it took them 55 minutes to drive back to the school,

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7 0
3 years ago
Four more than twice a number is -10.
Vadim26 [7]

Answer:

4 + ( -7 X 2 ) = -10

Step-by-step explanation:

Check work:

-7 times 2 is -14.

4 + -14 = -10

5 0
4 years ago
Read 2 more answers
16x⁴-4x²-4x-1 and 8x³-1<br>HCF​
IgorLugansk [536]

Answer:

We have expanded formula of (-4x-1)² = a²+2ab+b².

So, we write the formula in square form as (a+b)².

Since we have a²-b² in step 4. We further write this as (a+b)(a-b). This is the factor formula of a²-b².

As we had two terms in place of in (a+b)(a-b), we multiply the term 'b' with '+' and '-' sign respectively.  

Write the second expression given in the question.

Write the terms in the form of cube.

Write the factor formula of a³-b³) in the form of (a-b)(a²+ab+b²).

Write the H.C.F. (Highest Common Factor) of the given expressions by analysing the factors you generated in each expressions. Here, (4x²+2x+1) are the common factors.

4 0
3 years ago
These two rectangles are similar. Which is a correct proportion for corresponding sides?
Keith_Richards [23]

Answer:

option (2) is correct.

\frac{4}{8}=\frac{12}{x}

Step-by-step explanation:

Given two similar rectangles and with dimension of sides,

we have to choose the correct proportion for corresponding sides.

Since, the rectangles given are similar rectangles.

So, the corresponding sides are in same proportion in case of similar figures,

So,  

\frac{4}{8}=\frac{12}{x}

Thus, option (2) is correct.


7 0
3 years ago
Read 2 more answers
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