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Sloan [31]
3 years ago
9

-12=f-7 help please

Mathematics
2 answers:
Lisa [10]3 years ago
8 0

Answer:

f=-5

Step-by-step explanation:

1) Add 12 to both sides

2) You should get f=-5

lianna [129]3 years ago
6 0

Answer:

\huge \boxed{F=-5}\checkmark

Step-by-step explanation:

First, switch sides.

\displaystyle F-7=-12

Then, add by 7 from both sides of equation.

\displaystyle F-7+7=-12+7

Simplify, to find the answer.

\displaystyle -12+7=-5

\huge \boxed{F=-5}, which is our answer.

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Answer:

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Step-by-step explanation:

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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.

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patriot [66]

Answer:

121

Step-by-step explanation:

cause if its on the oppsite side its going to be the same number

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