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3 years ago

Multiply (4n - 5)(2n + 5)

Mathematics

2 answers:

WINSTONCH [101]3 years ago

6 0

Answer:

-7n

Step-by-step explanation:

4-5= -1

2+5= 7

-1×7= -7

-7+n= -7n

likoan [24]3 years ago

4 0

Answer:

8n^2+10n-25

Step-by-step explanation:

it's probably wrong that's what I got tough xp

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What conclusion can be determined from the dot plot below?

Mariulka [41]

The answer is D because the median is 4, the mean is 4, and the range is 4

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4 years ago

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At the taco truck an order of 1 taco and 3 quesadillas cost $ 26.50. An order if 3 tacos and 1 quesadilla cost $19.50. for 5 tac

gladu [14]

Answer:

The cost of 1 taco = $4

The cost of 1 quesadilla = $7.50

Step-by-step explanation:

Let the cost of tacos be x and the cost of quesadillas be y.

<h3><u>Given condition:</u></h3>

x + 3y = 26.50 ------------------(1)

3x + y = 19.50 -------------------(2)

Multiply Eq. (2) by 3

3(3x + y) = 19.50 * 3

9x + 3y = 58.5 -----------------(3)

Subtract Eq. (3) from (1)

x + 3y - 9x - 3y = 26.50 - 58.50

x - 9x = -32

-8x = -32

8x = 32

Divide 8 to both sides

x = $4

Put x = 4 in (1)

4 + 3y = 26.50

Subtract 4 to both sides

3y = 26.50 - 4

3y = 22.50

Divide 3 to both sides

y = $7.50

So,

The cost of 1 taco = $4

The cost of 1 quesadilla = $7.50

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2 years ago

ASAP! GIVING BRAINLIEST! Please read the question THEN answer correctly! No guessing.

Snezhnost [94]

Answer:

B yes, because every x value corresponds to exactly one y value

Step-by-step explanation:

A function means that each input goes to a different output

Each input goes to only 1 y value

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4 years ago

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1/56 divided by -30 write fractions is simplest form

Nady [450]

Simplified form of 1/56 divided by -30 is $=-\frac{1}{1680}$

Step-by-step explanation:

We need to solve 1/56 divided by -30 in simplest form.

Solving:

Writing in mathematical form:

$\frac{1}{56}\div -30$

Converting division symbol into multiplication and taking reciprocal of -30

$=\frac{1}{56}\times \frac{1}{-30}$

Simplifying:

$=\frac{1}{56*-30}$

$=-\frac{1}{1680}$

So, simplified form of 1/56 divided by -30 is $=-\frac{1}{1680}$

Keywords: Solving Fractions

Learn more about Solving Fractions at:

#learnwithBrainly

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4 years ago

Need help please I will give brainliest

MatroZZZ [7]

Answer:

i believe your answer would be 5 and 3, FD

Step-by-step explanation:

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4 years ago