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svlad2 [7]
3 years ago
7

How to fill in the proof

Mathematics
1 answer:
klasskru [66]3 years ago
5 0
Given
def of congruent polygons
def of congruent polygons
def of congruent polygons
dad of congruent polygons
segment addition postulate
segment addition postulate
substitution property of equality
substitution property of equality
SAS congruence
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Evaluate. Write your answer as a fraction in simplest form.<br><br> 2 1/6 −(−8/3)+(−4 7/9)
Snezhnost [94]

Answer:

1/18

Step-by-step explanation:

first, you make the fraction a mixed number so 2 2/3.

second, the two minuses cancel each other out so 2 1/6 + 2 2/3

third, make the 2/3 from 2 2/3 into 4/6 so you can add it to the 2 1/6

fourth, add your 2 1/6 and your 2 4/6 to get 4 5/6.

that’s the first part: 2 1/6 -(-8/3) is equal to 4 5/6

then, since you’re adding a negative number, it’s basically subtracting the 4 7/9 from 4 5/6

first you subtract the whole numbers = 0

then, make the denominators the same: (6*9, common denominator is 54) so since you’re multipling the 9 from 7/9 by 6, also multiply the 7 by 6 to get 42. 42/54. do the same but with a 9 on the 5/6. you get 45/54

so now you can do 42/54 — 45/54 to get 3/54

54/3 is 18 so you can simplify to 1/18

7 0
3 years ago
Read 2 more answers
Use zero property to solve the equation.<br> F(x)=3x(x+7)-2(x+7)
oksian1 [2.3K]

Answer:

x = -7 or x = 2/3

Step-by-step explanation:

I'm assuming you meant solve for x when f(x) = 0.

f(x) = 3x(x + 7) - 2(x + 7)

0 = (x + 7)(3x - 2) -- Both terms have a common factor of (x + 7) so we can group them

x + 7 = 0 or 3x - 2 = 0 -- Use ZPP

x = -7 or x = 2/3 -- Solve

7 0
4 years ago
Noelle bought two 1/2- gallon cartons of lemonade for her lemonade stand. How many ounces of lemonade did she buy? what's your n
Alisiya [41]
Two 1/2 gallons would be one gallon, there is 128 ounces in a gallon.
i don't know how to help you with the model but
there is 128 ounces
6 0
3 years ago
Choose the correct simplification of (5x3 − 5x − 8) + (2x3 + 4x + 2).
Lana71 [14]
(5x^3-5x-8)+(2x^3+4x+2)
7x^3-x-6
7 0
4 years ago
Read 2 more answers
Can someone help me
zzz [600]
The answer is B (-1,3) hope this helped u
7 0
4 years ago
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