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3 years ago

What is the angle in a triangle that is part of a linear pair? i will give 15 points im desperate

Mathematics

1 answer:

gogolik [260]3 years ago

7 0

Answer: Linear pairs of angles add up to 180 degrees. A+B=180

Step-by-step explanation: A linear pair of angles is formed when two lines intersect. Two angles are said to be linear if they are adjacent angles formed by two intersecting lines. The measure of a straight angle is 180 degrees, so a linear pair of angles must add up to 180 degrees

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What are the solutions to log (x² + 8) = 1 +logo(x)?

kherson [118]

Answer:

x = 9.125 and 0.875

Step-by-step explanation:

Given the expression

log (x² + 8) = 1 +log(x)?

This can also be written as;

log (x² + 8) = log 10 +logo(x)

log (x² + 8) = log(10x)

(x² + 8) = (10x)

x² -10x + 8 = 0

Factorize;

x = 10±√(-10)²-4(8)/2

x = 10±√100-32/2

x = 10±√68/2

x = 10±8.25/2

x = 10+8.25/2 and 10-8.25/2

x = 18.25/2 and 1.75/2

x = 9.125 and 0.875

4 0

3 years ago

The number a exceeds the number b by 50 percent. By what percent is the number b smaller than the number a?

inna [77]

Answer:

33 1/3 percent smaller

Step-by-step explanation:

The number a exceeds the number b by 50 percent.

a = b + b*.5

a = b(1.5)

Divide by 1.5

a/1.5 = b

2/3a =b

We want to find (a-b)/a to find the percent decrease

(a-2/3a)/a *100percent

(1/3a)/a* 100 percent

1/3 * 100 percent

33 1/3 percent smaller

5 0

3 years ago

Which equation describes a line of symmetry for the figure shown? x = 0 y=−x y = x y = 0

Katena32 [7]

Answer:

y=0

Step-by-step explanation:

Hope this helped!!!

6 0

3 years ago

You buy two ads in a newspaper. One ad takes up 58 of a page, and the other ad takes up 18 of a page. How much space did you buy

Bas_tet [7]

The answer is 76... I just added the two numbers together

3 0

3 years ago

For the function f(x)=3xsquared- 2x+5 find f(1) f(-2) and f(a)

Oksanka [162]

$f(x)=3x^2-2x+5\\\\
f(1):\ \ Substitude\ 1 \ as\ x\ into\ function:\\
f(1)=3*1^2-2*1+5=3-2+5=\textbf{6}\\\\
f(-2)\ \ Substitude\ x=-2\\
f(-2)=3*(-2)^2-2*(-2)+5=3*4+4+5=12+4+5=\textbf{21}\\\\
f(a)\ \ substitude\ x=a\\
f(a)=\underline{3a^2-2a+5}$

4 0

3 years ago