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tensa zangetsu [6.8K]
3 years ago
12

How do you do this problem In 8th grade

Mathematics
1 answer:
ipn [44]3 years ago
7 0
25+2x+3=3x-17
x=45

measure of an exterior angle of a triangle = the sum of the measures of the two remote angles
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What is one way the Pennsylvania colony was able to maintain peace with the Native American people?
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5 0
3 years ago
Please help answering questions 215 and 216.
kodGreya [7K]

Problem 215

Check out the attached image. Line up the letters ABC and CDE so the first set of letters are over the second set of letters. Order is important here. Note how A corresponds to C (second C), B corresponds to D, and (the first) C corresponds to E.

We have this mapping:

A <--> C

B <--> D

C <--> E

This means...

Angle BAC corresponds to Angle DCE (red angles)

Angle ABC corresponds to Angle CDE (blue angles)

Angle BCA corresponds to Angle DEC (green angles)

It also means...

Side BC corresponds to Side DE (red sides)

Side AC corresponds to Side CE (blue sides)

Side AB corresponds to Side CD (green sides)

Check out the attached image which I hope clears up any confusion you may have. Often I think it helps to represent stuff like this in a visual way.

============================================

Problem 216

Answer: True

Since triangle ABC is congruent to triangle DEF, this means that side AB is congruent to side ED. These are corresponding sides. Since AB = 6, this means ED = 6 as well.

8 0
3 years ago
Solve for x 13x + 7 = 5x - 20
ivanzaharov [21]

Answer:

13x + 7 = 5x - 20

Step-by-step explanation:

SOLVE for X

13x + 7 = 5x - 20

-------------------------

-5x                   -7  

------------------------

8x=-27

x= -3.375 or -27/8

8 0
3 years ago
Read 2 more answers
A teacher writes two equations as shown.
yaroslaw [1]
A) J = (3/8)*(5/15 -6/15) = (3/8)*(-1/15) = (1/8)*(-1/5) = -1/40
.. K = (3/4)*(4/6 -5/6) = (3/4)*(-1/6) = (1/4)*(-1/2) = -1/8

B) (-1/40) +(-1/8) = -1/40 -5/40 = -6/40 = -3/20

C) The opposite of -3/20 is 3/20

D) Real world: I'm answering Brainly.com questions and one asks the opposite of -3/20.
5 0
3 years ago
Write an exponential function in the form y=ab^x that goes through points (0, 17) and (2,153).
garik1379 [7]

Answer:

y = 17*(3)ˣ

Step-by-step explanation:

y=abˣ

(0,17) : 17 = a*b⁰ = a

(2,153) : 153 = a*b² = 17*b²

b² = 153/17 = 9

b = ± 3  ... (0,17) and (2,153) in first quadrant   b = 3

function: y = 17*(3)ˣ

4 0
2 years ago
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