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stellarik [79]
2 years ago
9

What is the answer to 9x + 10 = -8

Mathematics
2 answers:
Bess [88]2 years ago
8 0
Answer: the answer should be x=-2
Kryger [21]2 years ago
8 0

Answer:

x = -2

Step-by-step explanation:

9x+10=-8~(Given)\\\\9x+10-10=-8-10~(Subtract~10~on~both~sides)\\\\9x=-18~(Simplify)\\\\\frac{9x}{9}=\frac{-18}{9}~(Divide~9~on~both~sides)\\\\x=-2~(Simplify)

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Two diameters of circle P are AB and CD. Find the measure of arc ACD and arc AC when arc AD has a measure of 20 degrees
steposvetlana [31]

Answer:

Hence measure of arc ACD and arc AC are 340 degrees and 160 degrees respectively.

Step-by-step explanation:

Given:

A Circle with p as center and AB and CD as 2 diameters for a circle.

To Find:

Measure of ACD, and arc AC when arc AD is 20 degrees.

Solution:

<em>As we know that , Diameter is biggest chord which passes through center of circle,</em>

<em>Hence it divides the circle into two equal parts and making center as midpoint of it</em> .

(Refer the attachment)

angle APD=20 degree or arc AD=20 degree.

So AB as diameter ,so  arc DB=160 degree  or BPD=160 degree as A-B-P are

and angle APD and BPC are vertical opposite angles so they are congruent BPC=20 degree

Now,

points A,C,B,D,A makes circle which measures 360 degrees.

to find ACD

measure of ACD=360-(meaure of arc AD or angle APD)

=360-20

=340 degree.

Now arc AC,

as AB is diameter with p as midpoint ,A-P-B

arc APB=180 and arc BC=20 or angle BPC=20 degrees.

For measure of arc AC= measure of arc APB- arc BC

arc AC=180-20 degrees.

arc AC=160 degrees.

5 0
3 years ago
Rewrite the equation below in standard form.
enyata [817]
Well, the standard equation is in the form:

ax + bx = c (constant).

Thus, x and b must be isolated together on one side with the constant on the other. The equation which satisfies this is:

A. -2x + y = 5
7 0
3 years ago
PLEASE NO LINKS, I will report you.
FromTheMoon [43]

Answer:

for 18 x is 6 and for 20 it is 11

Step-by-step explanation:

For 18, since -1+2x and 5+x is the same thing, set up and equation. WE can simplify to -1+x=5 and then we get x=6

For 20, 18 is 11 since 18=-4+2x. If we simplify we get 22=2x then we can use algebra to say that x=11

Hope this helps :)

7 0
2 years ago
Read 2 more answers
Hey guys did you know Brainly has a very nice app with some cool camera features?
love history [14]
Yes, Brainly is a very useful app. I love helping people, and it allows me to gain some help from others when needed :)
6 0
3 years ago
What is the value of 5x+ 3 when X= 4?<br> 9<br> 12<br> 23<br> 60
Bingel [31]
The answer is 23 because you would substitute in the 4 for the X and multiply 5 times 4 = 20 then add 20 plus 3 and you get 23
7 0
3 years ago
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