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3 years ago

Does anybody know the answer?

Mathematics

1 answer:

Elden [556K]3 years ago

3 0

Step-by-step explanation:

y=3/4x+1

because we resiprocal the -3/4x+1

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What is an equivalent expression to 14x^2 + 4y^3 - 3x^2 - 5 + 2y^3

katovenus [111]

Answer:

It’s C :)

Step-by-step explanation:

7 0

3 years ago

*Please answer!* Reese paid $280 for his skis after a 30% discount. What was the original price? Also What was the discount that

madam [21]

280=.7x
.7 because 100%-30% is 70%

Solve
280/.7=x
400=x
$400 original cost

5 0

3 years ago

Read 2 more answers

Which of the following statements regarding a binomial experiment is false, where n is the number of trials, and p is the probab

tatuchka [14]

Answer:

A. The standard deviation is np(1 - p).

Step-by-step explanation:

The variance of the number of successes/failures is measured by (σ2x) is n * P * ( 1 - P ).

The standard deviation (σx) is square root of [ n * P * ( 1 - P ) ]

The mean is np.

4 0

3 years ago

aylor and Natsumi are making block towers out of large and small blocks. They are stacking the blocks on top of each other in a

frozen [14]

Answer:

The height of a large block is of 12.1 inches and of a small block is of 7.7 inches.

Step-by-step explanation:

This question is solved using a system of equations.

I am going to say that:

x i the height of a large block.

y is the height of a small block.

Taylor uses 4 large blocks and 2 small blocks to make a tower 63.8 inches tall.

This means that:

$4x + 2y = 63.8$

Simplifying by 2:

$2x + y = 31.9$

$y = 31.9 - 2x$

Natsumi uses 9 large blocks and 4 small blocks to make a tower 139.8 inches tall.

This means that:

$9x + 4y = 139.8$

Since $y = 31.9 - 2x$

$9x + 4(31.9 - 2x) = 139.8$

$9x + 127.6 - 8x = 139.8$

$x = 12.1$

$y = 31.9 - 2x = 31.9 - 2(12.1) = 7.7$

The height of a large block is of 12.1 inches and of a small block is of 7.7 inches.

7 0

3 years ago

Now Cathy is three times as old as Katie. In six years Cathy will be only twice as old as Katie. How old is each girl now?

BabaBlast [244]

Katie is 6; Cathy is 18!

X- Katie’s age now and 3x -Cathys age now
In 6 years, Katie is 12 and Cathy is 24.

2 x (X+6) = 3x + 6
2x + 12 = 3x + 6
6 = x

6 0

3 years ago