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artcher [175]
4 years ago
15

Help please?

Mathematics
1 answer:
zubka84 [21]4 years ago
6 0
13)4n-40=-14n+14
=4n+14n=14+40
=18n=54
n=54/18
n=3

14)35a-28-1=14-8a
35a+8a=14+29
43a=43
a=43/43
a=1

15)-31-4x=-5-5-25x
-4x+25x=-10+31
21x=21
x=21/21
x=1

16)38+7k=8k+32
7k-8k=32-38
-k=-8
k=-8/-1
k=8
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2x/7 divides by 4y/14?
Sonbull [250]
Remember that \frac{\frac{a}{b}}{\frac{c}{d}}=(\frac{a}{b})(\frac{d}{c})=\frac{ad}{bc}

try and simpliy each first
4y/14=(2/2)(2y/7)=2y/7

so 2x/7 divided by 2y/7
\frac{\frac{2x}{7}}{\frac{2y}{7}}=(\frac{2x}{7})(\frac{7}{2y})=\frac{(2x)(7)}{(2y)(7)} = \frac{14x}{14y}=\frac{x}{y}
7 0
3 years ago
Solve for x: −2x + 5 < 7
Neko [114]

Inequality Form = X > -1

Interval Notation = (-1,∞)

3 0
3 years ago
Read 2 more answers
F\left(x\right)\ =\ 2^{x\ }and\ g\left(x\right)\ =\sqrt{x}+1
castortr0y [4]

Answer:

F(x) = 2^x gives you (0,1)

G(x) = \sqrt{x}+1 also gives you (0,1)

Step-by-step explanation:

I hope these are the answers you were looking for! I'm sorry if it's not, I would need the question to give you the correct answer.

3 0
3 years ago
Find the area of the shape. ( image of 3/4 circle with the radius of 6 ) Answer in exact terms of pi or use 3.14 as pi and enter
Luba_88 [7]

The area of the shape is 84.78 square units

<h3>Area of a circle</h3>

The formula for calculating the area of a circle is expressed as:

A = πr²

where

r is the radius of a circle

Given the following

r = 6 units

pi = 3.14

Substitute

A = 3.14 * 6²

A = 113.04 square units

If the figure is 3/4 of a circle, the area of the shape will be:

A = 3/4 * 113.04

A = 84.78 square units

Hence the area of the shape is 84.78 square units

Learn more on area of a circle here: brainly.com/question/10645610

#SPJ1

3 0
2 years ago
What is y=1/2x+4 in standard form?
zhuklara [117]
<h3>Answer:  x-2y = -8</h3>

===========================================

Explanation:

Multiply both sides by 2 to clear out the fraction

y = (1/2)x+4

2y = 2[ (1/2)x + 4 ]

2y = 2*(1/2)x + 2*4

2y = x + 8

Then move the x term over to the left side

2y = x+8

2y-x = 8

-x+2y = 8

Optionally we can multiply both sides by -1

-x+2y = 8

-1*(-x+2y) = -1*8

x-2y = -8

This is in standard form Ax+By = C with A = 1, B = -2, C = -8

The reason why I multiplied both sides by -1 was to make A > 0 which is what some textbooks use as convention. Of course -x+2y = 8 is equally valid too.

8 0
3 years ago
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