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Aneli [31]
4 years ago
7

The measures of two vertical angles are represented by (3x+15) and (2x-10). what is the value of x

Mathematics
1 answer:
Oksana_A [137]4 years ago
4 0
Vertical angles are congruent.  3x+15 = 2x-10.  x = -25
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Find the value of (6^0 − 7^0) × (6^0 + 7^0)
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Step-by-step explanation:

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Read 2 more answers
Help with 21 would be much appreciated.
umka2103 [35]

Answer:

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Step-by-step explanation:

Look at the picture.

ΔADC and ΔCDB are similar. Therefore the sides are in proportion:

\dfrac{AD}{CD}=\dfrac{CD}{DB}

We have

AD=14-8=6\\CD=y\\DB=8

Substitute:

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For x use the Pythagorean theorem:

x^2=6^2+(4\sqrt3)^2\\\\x^2=36+48\\\\x^2=84\to x=\sqrt{84}\\\\x=\sqrt{4\cdot21}\\\\x=\sqrt4\cdot\sqrt{21}\\\\\boxed{x=2\sqrt{21}}

3 0
3 years ago
A borrower had a loan of $ 60 comma 000.00 at 4 % compounded annually comma with 8 annual payments. Suppose the borrower paid of
quester [9]

Answer:

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Step-by-step explanation:

When interest is compounded annually, total amount A after t years is given by:

A = P(1 + r)^{t}

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From the question:

P = $60,000

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t = 4

A = 60000(1 + 0.04)^{4} \\A = 60000(1.04)^{4}\\A = 60000 * 1.16985856\\A = 70191.5136\\A = 70192

The amount needed to pay off the loan after 4 years is $70,192

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7 0
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Sindrei [870]
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3 years ago
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iogann1982 [59]

Answer:

x = 2    y = 0

Step-by-step explanation:

8 0
3 years ago
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