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3 years ago

CAN ANYONE HELP ME ASAP with this math thing? :D

Mathematics

2 answers:

mylen [45]3 years ago

6 0

Answer:

y = -1/2x + 10

Step-by-step explanation:

icang [17]3 years ago

3 0

Answer:

Step-by-step explanation:

slope intercept form is y=mx+b

(-1/2)x +y= 10; add to both sides (-1/2)x

y= (1/2)x +10

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-13x+4x=-39+18x what is X??????

Vinil7 [7]

X= 1.4
First, you combine like terms

-13x + 4x = -9x

Then you subtract 18x from each side so you can get -39 by itself

-9x -18x = -27x

Next you divide -27x by -27 and -39 by -27

-27/-27 = 1x

-39/-27 = 1.4

So X= 1.4

6 0

3 years ago

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Which of the following operations should be used first to solve 10t + 5 = 150.

My name is Ann [436]

Answer:

Subtract 5 to get 10t = 145.

3 0

3 years ago

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Find all the missing dimensions when a=9, b=13, c=64°

DerKrebs [107]

Answer:

Part 1) $c=12.14\ units$

Part 2) $m\angle A=41.78^o$

Part 3) $m\angle B=74.22^o$

Step-by-step explanation:

step 1

Find the measure of side c

Applying the law of cosines

$c^2=a^2+b^2-2(a)(b)cos(C)$

we have

$a=9\ units\\b=13\ units\\C=64^o$

substitute

$c^2=9^2+13^2-2(9)(13)cos(64^o)$

$c^2=81+169-234cos(64^o)$

$c^2=250-234cos(64^o)$

$c^2=147.4212$

$c=12.14\ units$

step 2

Find the measure of angle A

Applying the law of sines

$\frac{a}{sin(A)}=\frac{c}{sin(C)}$

substitute the given values

$\frac{9}{sin(A)}=\frac{12.14}{sin(64^o)}$

solve for sin(A)

$sin(A)=\frac{sin(64^o)}{12.14}(9)$

$sin(A)=0.6663$

$m\angle A=sin^{-1}(0.6663)=41.78^o$

step 3

Find the measure of angle B

we know that

The sum of the interior angles in any triangle must be equal to 180 degrees

$m\angle A+m\angle B+m\angle C=180^o$

substitute the given values

$41.78^o+m\angle B+64^o=180^o$

$m\angle B+105.78^o=180^o$

$m\angle B=180^o-105.78^o$

$m\angle B=74.22^o$

5 0

3 years ago

PLEASEEE HELP MEEE!! I DONT UNDERSTAND AT ALL!!

jenyasd209 [6]

Domain: (-∞,∞)

Range: (3,∞)

x-intercepts: none

y-intercepts: (0,7)

Interval positive: (3,∞)

Interval negative: none

Interval increasing: (7,∞)

Interval decreasing: (-∞,7)

I'm not sure what the average rate of change over is though.

7 0

3 years ago

Urgent I’ll give brainlist

Jobisdone [24]

Answer:

I think A

Step-by-step explanation:

Can you mark me brainliest because I am almost to level ace!

4 0

3 years ago

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