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3 years ago

Triangle ABC is an equilateral triangle with side lengths labeled a, b, and c.

Mathematics

2 answers:

Butoxors [25]3 years ago

6 0

Answer:

the answers are all bold below

Step-by-step explanation:

Triangle ABC is an equilateral triangle with side lengths labeled a, b, and c.

Triangle A B C is an equilateral triangle. The length of side A B is c, the length of B C is a, and the length of A C is b.

Trigonometric area formula: Area = One-half a b sine (C)

Which expressions represent the area of triangle ABC? Select three options.

a c sine (60 degrees)

One-half b c sine (60 degrees)

One-half a squared sine (60 degrees)

StartFraction a squared b sine (60 degrees) Over 2 EndFraction

StartFraction a b sine (60 degrees) Over 2 EndFraction

alina1380 [7]3 years ago

3 0

Answer:

B C E

Step-by-step explanation:

I took the test

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Christopher plays quarterback for a

jeka94

Answer:

70%

Step-by-step explanation:

$42\div60$

Calculate

$\frac{42}{60}$

Cross out the common factor

$\frac{7}{10}$

Multiply a number to both the numerator and the denominator

$\frac{7}{10}\times\frac{10}{10}$

Write as a single fraction

$\frac{7\times10}{10\times10}$

Calculate the product or quotient

$\frac{70}{10\times10}$

Calculate the product or quotient

$\frac{70}{100}$

Rewrite a fraction with denominator equals 100 to a percentage

$70$ %

I hope this helps you

:)

8 0

2 years ago

Pls help me no explain need ❤️❤️❤️

RoseWind [281]

Answer:

$\displaystyle m=2$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Reading a Cartesian plane
Coordinates (x, y)
Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (-5, 0)

Point (-9, -8)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [Slope Formula]: $\displaystyle m=\frac{-8-0}{-9+5}$
[Fraction] Subtract/Add: $\displaystyle m=\frac{-8}{-4}$
[Fraction] Divide: $\displaystyle m=2$

3 0

2 years ago

Quadrilateral DEFG has vertices D(−2,4) , E(4,7) , F(10,3) , and G(8,0) .

fredd [130]

A rotation 270° counterclockwise about the origin is the same as rotation 90° clockwise about the origin and has a rule:

(x,y)→(y,-x).

Then:

D(−2,4)→D'(4,2)
E(4,7)→E'(7,-4)
F(10,3)→F'(3,-10)
G(8,0)→G'(0,-8)

Answer: the coordinates of vertices of quadrilateral D′E′F′G′ are D'(4,2), E'(7,-4), F'(3,-10), G'(0,-8).

8 0

2 years ago

1) Find 0.2+(-0.6). » Model the expression on the number line

Temka [501]

Answer:

-0.4

Step-by-step explanation:

If using a number line, start at 0.2 and go backwards 0.6 to get to -0.4

5 0

3 years ago

Find the slope of the line that passes through (95, 2) and (-2, 95).

adoni [48]

Answer:

Slope is -93/97

Step-by-step explanation:

To find slope subtract the y's and put that answer in top of a fraction. Then subtract the x's and put that on the bottom of the fraction. If its a smaller number on top and bigger number on the bottom, that is a proper fraction. If the bigger number is on top then it is an improper fraction. If it divides evenly, then the answer will just be a whole number (what the questions calls an integer) All these answers can be positive or negative.

***BUT, you have to start the subtractions with the same point!!!

Let's start with (-2, 95) in front, for both subtractions. (But it could be either point, the answer comes out the same)

Subtract y's: 95-2 is 93.

Subtract x's: -2 - 95 is -97

The slope is 93/-97 it is a proper fraction.

We can put the negative sign in front instead of at the bottom, it looks better.(and is the same)

Slope is -93/97

5 0

2 years ago