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Sonja [21]
3 years ago
8

The measure of an angle is 89. Find the measure of its supplement

Mathematics
1 answer:
prohojiy [21]3 years ago
6 0

Step-by-step explanation:

Supplementary angles are equal to 180°. To determine the supplement of any angle, subtract the given angle from 180°.

\text{Supplement \: of \: 89  \: \degree = 180 \degree - 89\degree =  \boxed{ \bold{ \text{91\degree}}}}

Hope I helped ! ツ

Have a wonderful day / night ! ♡

# { \underbrace{ \text{Carry \: On \: Learning}}} !! ✎

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A menu has 8 entrée choices, 4 salad choices, and 3 dessert choices.
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Step-by-step explanation:

All you have to do is multiply the three numbers.

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A mechanic earned $983.88 for 42.5 hours of work . Which is the best estimate of how much the mechanic earned per hour
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Andy is building a model of a square pyramid for a class project. The side length of the square base is 11 inches and the slant
Wewaii [24]

Answer:

The surface area of the model pyramid is 451\ in^{2}

Step-by-step explanation:

we know that

The surface area of the pyramid is equal to

SA=B+LA

where

B is the area of the base of the pyramid

LA is the lateral surface of the pyramid

<em>Find the area of the base B</em>

B=11^{2}=121\ in^{2} -----> is a square

<em>Find the lateral surface area of the pyramid LA</em>

we know that

The lateral surface area is equal to the area of its four triangular faces

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<em>Find the surface area of the pyramid</em>

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3 years ago
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Naddika [18.5K]

Answer:

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Step-by-step explanation:

General equation of circle is x^{2} +y^{2} +2\times g \times x+2\times f\times y+c = 0   ---------------------(1)

This circle passes through the given three points, (1,7) , (8,6) and (7,-1).

Substitute (1,7) in (1),

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Substitute (8,6) in (1),

8^{2} + 6^{2} +2\times g \times 8+2\times f\times 6 +c=0

16g + 12f + c = -100    -----------(3)

Substitute (7,-1) in (1),

7^{2} + (-1)^{2} +2\times g \times 7+2\times f\times (-1) +c=0

14g - 2f + c = -50    ---------------(4)

Solving (2),(3) amd (4) simultaneously,

g = -4

f = -3

c = 0

Equation of circle is

x^{2} +y^{2} +(-8)\times x+ (-6)\times y = 0  

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Answer:

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