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tino4ka555 [31]
3 years ago
7

Please explain how you got your answer also, thank you :)

Mathematics
1 answer:
BigorU [14]3 years ago
6 0

Answer:

Step-by-step explanation:

1) y=x²-8x+5=0

2) x²-8x=-5

3) x²-8x+16=9

4) (x-4)²=9

5)(x-4)²-9=0

((x-4)-3)((x-4+3)=0

(x-7)(x-1)=0

x=7 or x=1

sol={1;7}

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Luda [366]
The answer is $0.8

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Answer:

k = 25

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Somebody help me with this
Alchen [17]

<u>Given</u>:

Given that the quadrilateral ABCD is inscribed in the circle.

The measure of ∠A is (14z - 7)°

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The measure of ∠D is (10z)°

We need to determine the measures of ∠A, ∠B, ∠C and ∠D

<u>Value of z:</u>

We know the property that the opposite angles of a quadrilateral inscribed in a circle are supplementary.

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\angle A+ \angle C=180^{\circ}

Substituting the values, we have;

14z-7+8z=180

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Thus, the value of z is 8.5

<u>Measure of ∠A:</u>

The measure of ∠A can be determined by substituting the value of z.

Thus, we have;

\angle A=14(8.5)-7

\angle A=119-7

\angle A=112^{\circ}

Thus, the measure of ∠A is 112°

<u>Measure of ∠C:</u>

The measure of ∠C can be determined by substituting the value of z.

Thus, we have;

\angle C=8(8.5)

\angle C =68^{\circ}

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<u>Measure of ∠D:</u>

The measure of ∠D can be determined by substituting the value of z.

Thus, we have;

\angle D=10(8.5)

\angle D=85^{\circ}

Thus, the measure of ∠D is 85°

<u>Measure of ∠B:</u>

The angles B and D are supplementary.

Thus, we have;

\angle B+ \angle D=180^{\circ}

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\angle B+ 85^{\circ}=180^{\circ}

        \angle B=95^{\circ}

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4 years ago
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Apply this same approach (Pythagorean Theorem) to the remaining problems.

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