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Ne4ueva [31]
3 years ago
12

What is the measure of DEF?

Mathematics
1 answer:
Tems11 [23]3 years ago
5 0

The measures of triangle def is ,

78+x+x=180

78+2x=180

2x=180-78

2x=102

x=102÷2

x=51

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Construct a linear function, f(x), to model the ordered pairs (6, 2) and (7, −5). f(x) = 7x + 44 f(x) = x + 4 f(x) = −44x + 7 f(
Sonbull [250]

First we find the slope between the two given points.

m = (y2 - y1)/(x2 - x1) = (-5 - 2)/(7 - 6) = -7/1 = -7

Now we use the slope-intercept equation of a line.

y = mx + b

We use one point as x and y, and we solve for b.

2 = -7(6) + b

2 = -42 + b

b = 44

The equation is

y = -7x + 44

Answer: f(x) = -7x + 44

4 0
3 years ago
Jerry has taken a random sample of students and determined the number of electives that each student in his sample took last yea
Pani-rosa [81]
The correct answer for the question that is being presented above is this one: "B. 6/19." Jerry has taken a random sample of students and determined the number of electives that each student in his sample took last year. There were 19 students in the sample.
4 0
3 years ago
What's the value of x y z
lions [1.4K]
They are algebraic symbols or known as unknown number. There is no true value for them. The value of algebraic symbols are based on equations

ie. 1+x = 2

First, we isolate the x by canceling the +1 FROM BOTH SIDES(Balance method) by -1 ON BOTH SIDES.

1+x-1 = 2-1

So we are left with the x on the left side, and a single number on the right side. Therefore, our calculation is complete.

x = 1


More complex cases would be

2y-3 = 45

First, we need to isolate the algebraic symbol, which is 2y (yx2) by +3 ON BOTH SIDES

2y-3+3 = 45+3

2y = 48

WE ARE NOT DONE! 2y=48 is still an equation. Therefore, to isolate the y, we need to divide BOTH SIDES by 2

2y/2 = 48/2

y = 24

There is no true or absolute or definite value for algebraic symbols like x,y,z,a,c,t,h,d etc. They are used to represent unknown numbers.


Hope this helped!
8 0
3 years ago
what dose a point represents: a) line segment b) a location c) intersection of a plane d) none of the above
meriva

Answer:

(B) A location

Step-by-step explanation:

If you have a point on a graph or number line, it always represents a certain location on the graph.

For instance, if we have a point on the x=3 line and the y=4 line, the point would represent the location (3,4).

Hope this helped!

6 0
3 years ago
Please help fast! My friend thinks it’s 52 but I think it’s 28.
Marizza181 [45]

Answer:

Hey there!

I'm sorry, but your friend is right.

It is the difference between -40 and 12, which is 52.

Let me know if this helps :)

5 0
2 years ago
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