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3 years ago

What is -5/7 minus 7/8?

Mathematics

2 answers:

qaws [65]3 years ago

5 0

Answer:

1.) -89/56

2.) 9/56

3.) -5/8

4.) -40/49

lbvjy [14]3 years ago

3 0

Answer:

1.)89/56

2.)9/56

3.)5/8

4.)40/49

Step-by-step explanation:

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Use the Ratio Test to determine whether the series is convergent or divergent.

dezoksy [38]

Answer:

what is your question you already told us the answer

Step-by-step explanation:

4 0

3 years ago

The length of a rectangle is twice it’s width.The perimeter of the rectangle in 162 inches.How long is the rectangle?

Artist 52 [7]

The perimeter of a rectangle is all sides added up, so length + length + width + width.

L = length

W = width

then the perimeter is L+L+W+W, or 2L + 2W, or 2(L+W).

$\bf \textit{perimeter of a rectangle}\\\\
P=2(L+W)~~
\begin{cases}
P=162\\
L=\stackrel{\textit{twice W}}{2W}
\end{cases}\implies 162=2(2W+W)
\\\\\\
\cfrac{162}{2}=3W\implies 81=3W\implies \cfrac{81}{3}=W\implies 27=W$

what's the length? well, is just 2(27).

6 0

3 years ago

What is y + 10 = -3(x + 10) in slope-intercept form?

Inga [223]

Answer:

y= -3x-40

Step-by-step explanation:

first distribute

y+10= -3x-30

than subtract 10

y= -3x-40

4 0

4 years ago

Evaluate |x + y|, for x = 8 and y = -15. A. 7 B. -7 C. 23 D. -23

Ahat [919]

It's A because 8-15 is -7 but the absolute value parenthesis make it positive 7.

6 0

4 years ago

Read 2 more answers

How to solve this problem step by step. Make brainliest answer if its done. Please

sladkih [1.3K]

D is halfway between A and B

so the coordinates of D are (2,2)

E is halfway between A and C so the coordinates of E are (-1,1)

now you need to find the gradient/slope of DE and BC using the formula:

$\frac{y2 - y1}{x2 - x1}$

<h3>Gradient of DE: </h3>

SUB IN COORDINATES OF D AND E

$\frac{1 - 2}{ - 1 - 2}$

therefore the gradient of DE is 1/3.

<h3>Gradient of BC:</h3>

SUB IN COORDINATES OF B AND C

 $\frac{ - 2 - 0}{ - 3 - 3}$ 

therefore the gradient of BC is -2/-6 which simplifies to 1/3.

<h3>therefore, BC and DE are parallel as they both have a gradient/slope of 1/3 and parallel lines have the same gradient</h3>

6 0

4 years ago