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oksian1 [2.3K]
1 year ago
15

9th Grade Math - Geometry

Mathematics
1 answer:
worty [1.4K]1 year ago
6 0

14x+70+20x+8=180

34x+78=180

34x=102

x=3

XBC= 20(3) +8

60+8

68

XBA= 14(3)+70

42+70

112

Angle XBC= 68 degrees

Angle XBA= 112 degrees

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elena55 [62]

Answer:

there is no quick way around this. U need to plug in -4,2,8 into x value into the function, and see what y returns to

Step-by-step explanation:

7 0
2 years ago
The difference of two numbers is 3. Their sum is - 24. Find the numbers.
Katarina [22]

Answer:

y = -13.5

x = -10.5

Step-by-step explanation:

Hi there!

Let the two numbers be equal to <em>x</em> and <em>y</em>.

The difference of two numbers is 3 ⇒ x - y = 3

Their sum is - 24 ⇒ x + y = -24

Solve using elimination:

x - y = 3

x + y = -24

Add the two equations:

x + x - y + y = 3 - 24

2x = -21

x = -10.5

Solve for y:

-10.5 - y = 3

- y = 3 + 10.5

y = -13.5

I hope this helps!

4 0
3 years ago
Which is true about the polynomial –8m3 + 11m?
Mumz [18]

Answer:

b) It is a binomial with a degree of 3.

Step-by-step explanation:

We need to find about which is true about the polynomial –8m3 + 11m from the given choices.

There are two terms so it is binomial.

Highest exponent on variable m is 3 so degree is 3.

Correct matching choice is "It is a binomial with a degree of 3."

Hence final answer is choice "b) It is a binomial with a degree of 3."


4 0
3 years ago
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zhannawk [14.2K]

Answer:

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Step-by-step explanation:

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3 years ago
Determine the slope between (4, 2) and (-3, 5) ~hurry please~
SpyIntel [72]

Answer:

A.-3/7

Step-by-step explanation:

the slope formula is

m = (y2 - y1) / (x2-x1)

The point (4, 2) is (x1, y1) and the point (-3, 5) is (x2, y2). Now you have to substitute in the slope formula:

m = (5 - 2) / (-3 - 4)

m = 3 / -7

m = -3/7

7 0
3 years ago
Read 2 more answers
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