3 years ago

Negative seven plus four

Mathematics

1 answer:

gulaghasi [49]3 years ago

8 0

Answer:

-3

Step-by-step explanation:

it like 7-4 but then you change the sign to negative since you chance it earlier.

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Simplify 4a²+1/3a+5+a²+4+1/3a

vladimir2022 [97]

Answer:

$5a^2+\frac{2a}{3} + 9$

Step-by-step explanation:

Refer to file. Trying something different. Should be easier to read than text format and is easier than mathML.

7 0

3 years ago

Which of the following is the solution to the system of equations shown below?

antiseptic1488 [7]

Answer:

x = -2, x = 1

Step-by-step explanation:

mark as brainliest it is right

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3 years ago

Find the two straight lines represented by x² + 5xy - 6y² = 0

Andreyy89

By factorizing, we have

$x^2 + 5xy - 6y^2 = (x - y) (x + 6y) = 0$

so that

$x - y = 0 \implies \boxed{y = x}$

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2 years ago

A restaurant bill comes to $34.65. Find the total cost if the tax is 7.25% and a 20% tip is left on the amount before tax.

Tasya [4]

Answer:

44.59

Step-by-step explanation:

First add 20% to $34.65 and get $41.58, add the tax and your answer is $44.59.

3 0

3 years ago

You have 9 1/2 on a poster for a row of photos. Each photo is 2 3/4 inches wide. How many photos can you fit?

Sever21 [200]

Answer:

i wanna say 3

Step-by-step explanation:

i believe its 3 because if you add that 1/2 to the 3/4 you could have a 3 and 3 divided by 9 is 3 (forgive me if incorrect)

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3 years ago