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3 years ago

Help with number two

Mathematics

1 answer:

BabaBlast [244]3 years ago

7 0

Answer:

y = -2x+1

Step-by-step explanation:

We have a point and a slope, so we can use the point slope form of a line

y-y1 = m(x-x1) where m is the slope and (x1,y1) is the point

y-3 = -2(x--1)

y-3=-2(x+1)

Distribute the 2

y-3 = -2x-2

Add 3 to each side

y-3+3 = -2x-2+3

y = -2x+1

This is in slope intercept form

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Joe earns $4,100 per month and pays $870 each month in rent. Approximately what percent of his money is spent on rent?

Scorpion4ik [409]

if we take 4100 to be the 100%, what is 870 off of it in percentage?

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3 years ago

Simplify: 11y-110/50-5y

alexandr1967 [171]

<h2>Answer:</h2> $\frac{11y-110}{50-5y}=-\frac{11}{5}$

<h2>Explanations:</h2>

Given the following expression show below;

$\frac{11y-110}{50-5y}$

Factor out the GCF from both the numerator and denominator

$\frac{11(y-10)}{5(10-y)}$

This can also be expressed as;

$\begin{gathered} \frac{11(-10+y)}{5(10-y)} \\ \frac{-11(10-y)}{5(10-y)} \end{gathered}$

Cancel out the common expression

$\frac{-11\cancel{(10-y)}}{5\cancel{(10-y)}}=-\frac{11}{5}$

Hence the simplified form of the expression is -11/5

7 0

1 year ago

Sophia and Olivia shared 60p so that Olivia had 10p more than Sophia. How much did Sophia have?

Taya2010 [7]

Answer:

Step-by-step explanation:

If Olivia had 10 more p than Sophia, then Olivia has 35, and Sophia has 25.

35 + 25 = 60!

3 0

3 years ago

The diagram shows a 5 cm x 5 cm x 5 cm cube.

mylen [45]

Answer:

~8.66cm

Step-by-step explanation:

The length of a diagonal of a rectangular of sides a and b is

$\sqrt{a^2+b^2}$

in a cube, we can start by computing the diagonal of a rectangular side/wall containing A and then the diagonal of the rectangle formed by that diagonal and the edge leading to A. If the cube has sides a, b and c, we infer that the length is:

$\sqrt{\sqrt{a^2+b^2}^2 + c^2} = \sqrt{a^2+b^2+c^2}$

Using this reasoning, we can prove that in a n-dimensional space, the length of the longest diagonal of a hypercube of edge lengths $a_1, a_2, a_3, \ldots, a_n$ is