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Luba_88 [7]
4 years ago
14

(5x2 – 3) + (8x2 - 1)

Mathematics
2 answers:
sineoko [7]4 years ago
5 0

Answer:

Step-by-step explanation:

(5x2-3)+(8x2-1)

 13x squared - 4

 (5 • (x2)) -  3) +  (23x2 -  1)

 (5x squared -  3) +  (8x squared - 1)

 13x squared - 4

GalinKa [24]4 years ago
3 0

Answer:

13x^2-4

Step-by-step explanation:

(5x^2-3)+(8x^2-1)=

5x^2+8x^2-3-1=

13x^2-4

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1.Identify the fractions. Using the distributive property, you’ll eventually turn them into integers.

2.For all fractions, find the lowest common multiple (LCM) -- the smallest number that both denominators can fit neatly into. This will allow you to add fractions.

3.Multiply every term in the equation by the LCM.

4.Isolate variables adding or subtracting like terms on both sides of the equals sign.

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1/3(x-6)=16<br> Please help me out
Alexeev081 [22]

Answer:

\frac{1}{3} (x - 6) = 16) \times 3 \\ x - 6 = 3 \times 16 \\ x = 48 + 6 \\ \color{yellow} \boxed{ x = 54}

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3 years ago
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Explain why y +1 = 1.2(x + 2) and y- 5 = 1.2(x – 3) represent the same line, despite having
Shtirlitz [24]

Answer:

They have the same slope

Step-by-step explanation:

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3 years ago
Using your answer from the previous question, state the value of 't' if Josephine is going to run a dis-
gogolik [260]

Using the relation between velocity, distance and time, it is found that t = 3 hours.

<h3>What is the relation between velocity, distance and time?</h3>

Velocity is <u>distance divided by time</u>, hence:

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For this problem, the parameters are given as follows:

d = 15 miles, v = 5 mph

Hence the time in hours is found as follows:

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More can be learned about the relation between velocity, distance and time at brainly.com/question/24316569

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16. Find the value of y. ​
devlian [24]

y + (2x -12) = 180 (since they are supplementary angles)

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y = 84.

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3 years ago
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