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madreJ [45]
3 years ago
15

The equation can be used to find the length of AB

Mathematics
1 answer:
dmitriy555 [2]3 years ago
7 0
You can use
Sine25=9/c
Or
Sin25/9=sine 90/c
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PLEASE HELP 8th GRADE MATH QUESTION OVER HERE!!!
patriot [66]

The side AB measures option 2. \sqrt{20}} units long.

Step-by-step explanation:

Step 1:

The coordinates of the given triangle ABC are A (4, 5), B (2, 1), and C (4, 1).

The sides of the triangle are AB, BC, and CA. We need to determine the length of AB.

To calculate the distance between two points, we use the formula d=\sqrt{\left(x_{2}-x_{1}\right)^{2}+\left(y_{2}-y_{1}\right)^{2}}.

where (x_{1},y_{1}) are the coordinates of the first point and (x_{2},y_{2}) are the coordinates of the second point.

Step 2:

For A (4, 5) and B (2, 1), (x_{1},y_{1}) = (4, 5) and (x_{2},y_{2}) = (2, 1). Substituting these values in the distance formula, we get

d=\sqrt{\left(2-4\right)^{2}+\left(1-5}\right)^{2}} = \sqrt{\left(2\right)^{2}+\left(4}\right)^{2}}=\sqrt{20}}.

So the side AB measures \sqrt{20}} units long which is the second option.

6 0
3 years ago
Plz help if u can 20 pt please just don't take the points..
sergey [27]

Answer:

b. 28x + 8y +2

Step-by-step explanation:

you need to distribute the -2 to all the numbers inside parentheses and then combine like terms.

-2*3x= -6x

-2*12y= -24y

-2*-5= 10 (remember neg times neg = pos)

-2*17= 34x

-2*-16y=32y

-2*4= -8

Now combine like terms

34x-6x= 28x

32y-24y=8y

10-8=2

Write the expression:  28x + 8y +2

5 0
3 years ago
Josh ate 7/8 pizza and Jerry ate 1/2 pizza. how much more did Josh eat then Jerry​
xz_007 [3.2K]

Step-by-step explanation:

6/5 this is the answer hopes this help

8 0
3 years ago
Write an equation of the line that passes through (1,2) and is parallel to the line y = -5x +4
STatiana [176]

Answer:

y=-5x+7

Step-by-step explanation:

Prallel lines have the same slope

so the slope of  the unknown line is -5

and passes through(1,2)

y-2=-5(x-1)

slope-intercept form:y=-5x+7

6 0
3 years ago
A chemist is researching different sustainable fuel sources. She is currently working with benzene, which must be in liquid form
bearhunter [10]

Answer:

176>x>42

a.because the tem cant be 176 or higher, and it cant be 42 degrees or lower.

b. you must describe the graph of inequality which will look something like this:

c.Because the temperature cannot go below 42 before it freezes, she would not have been able to conduct her research

Step-by-step explanation:

4 0
2 years ago
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