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4 years ago

What should be done to solve the following equation d - 8 equals 9

Mathematics

2 answers:

Nitella [24]4 years ago

6 0

Answer:

What should be done is you add 8 on both sides and then d=17

Step-by-step explanation:

mr Goodwill [35]4 years ago

4 0

You have to do balanced steps and then add 8 on both sides to d-8=9. Then you should get an answer of d=17.

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70 POINTS!!!!!!!!!! Given: E, F, Q, D∈k(O),O ∈ ED, m∠DFQ = 10°, measure of arc EF = 28° Find: Angles of △EFQ

Likurg_2 [28]

Answer:

The measures of angles of triangle EFQ are

1) $m\angle EFQ=100\°$

2) $m\angle FEQ=66\°$

3) $m\angle EQF=14\°$

Step-by-step explanation:

step 1

Find the measure of arc QD

we know that

The inscribed angle is half that of the arc it comprises.

$m\angle DFQ=\frac{1}{2}(arc\ QD)$

substitute the given value

$10\°=\frac{1}{2}(arc\ QD)$

$20\°=(arc\ QD)$

$arc\ QD=20\°$

step 2

Find the measure of arc FQ

we know that

$arc\ QD+arc\ FQ+arc\ EF=180\°$ ---> because ED is a diameter (the diameter divide the circle into two equal parts)

substitute the given values

$20\°+arc\ FQ+28\°=180\°$

$arc\ FQ=180\°-48\°=132\°$

step 3

Find the measure of angle EFQ

we know that

The inscribed angle is half that of the arc it comprises.

$m\angle EFQ=\frac{1}{2}(arc\ QD+arc\ ED)$

substitute the given value

$m\angle EFQ=\frac{1}{2}(20\°+180\°)=100\°$

step 4

Find the measure of angle FEQ

we know that

The inscribed angle is half that of the arc it comprises.

$m\angle FEQ=\frac{1}{2}(arc\ FQ)$

substitute the given value

$m\angle FEQ=\frac{1}{2}(132\°)=66\°$

step 5

Find the measure of angle EQF

we know that

The inscribed angle is half that of the arc it comprises.

$m\angle EQF=\frac{1}{2}(arc\ EF)$

substitute the given value

$m\angle EQF=\frac{1}{2}(28\°)=14\°$

5 0

4 years ago

When constructing an equilateral triangle,

Fofino [41]

Answer:

Connect the intersections of the diameters and the circle with a segment

Step-by-step explanation:

Assuming the construction creates two orthogonal diameters, their ends will be the vertices of the inscribed square. Connecting them with segments in order around the circle will create the square.

7 0

4 years ago

Read 2 more answers

How do you solve this: Чx - 15 : 7х + 21

forsale [732]

Answer:

you can't solve this because it's not an equation

Step-by-step explanation:

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3 years ago

Last year, 15 dogs entered the local dog show. this year, 27 entered. what is the percent increase?

lukranit [14]

Answer:

80%

Step-by-step explanation:

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3 years ago

What is the answer to 45% of 432

suter [353]

The answer is 194.4.

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