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vampirchik [111]
3 years ago
10

6. Find the missing value. Show your work.

Mathematics
1 answer:
S_A_V [24]3 years ago
5 0
A+b=c it must equal a 90° angle
51+12=c and what ever c is subtract by 90 to get the missing variable(y)
51+12=63
90-63=27
y=27
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For each equation, determine whether it represents a direct variation, an inverse variation, or neither.
SSSSS [86.1K]

we know that in direct variation as x increase y also increases.

in indirect variation x decreases y increase and vice versa.

in part a we have x at top (numerator ) and y at denominator it mean indirect variation (as x increases y decreases).

to find k we know that for indirect variation xy=k

if we rewrite the equation x=9/y we get xy=9

which mean k=9 .

in part b we have 4xy=20 if we simplify this equation we get

xy=20/4=5

so here if we rewrite in terms of x.

we get x=5/y which represents indirect variation.

and we know xy=k

we have xy=5 .so k=5

8 0
3 years ago
Please help just say A,B,C, Or D if you don’t feel like giving examples. Thank you
Mashcka [7]

D. is the correct anser

7 0
3 years ago
Read 2 more answers
Help me please ?!!!!
blondinia [14]

Answer:

<em>The slope of the line is -1</em>

Step-by-step explanation:

<u>Slope of a Line</u>

Suppose we know a given line passes through points A(x1,y1) and B(x2,y2). The slope can be calculated as follows:

\displaystyle m=\frac{y_2-y_1}{x_2-x_1}

From the table in the image, we select the points (1,4) (3,2). The slope is:

\displaystyle m=\frac{2-4}{3-1}=\frac{-2}{2}=-1

Now select two other points like (5,0) (7,-2)

\displaystyle m=\frac{-2-0}{7-5}=\frac{-2}{2}=-1

Following the same procedure with any other pair of points, we'll get the very same result:

The slope of the line is -1

4 0
3 years ago
Explain why it is necessary to rename 4 1/4 if you subtract 3/4 from it
Alik [6]
To subtract a number from another number, they must be the same type. 4 1/4 is a mixed number; 3/4 is a fraction. thus, 4 1/4 must be converted into fractional form go subract a fraction (3/4) from it.
5 0
3 years ago
Determine if the three lengths given will be able to construct a triangle or not.
borishaifa [10]

Answer:

1) No

2) No

3) Yes

4) No

5) Yes

Step-by-step explanation:

All three sides must add with another to be greater than the last side (Not sure if that makes sense ._.)

5 0
3 years ago
Read 2 more answers
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