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3 years ago

Mathematics-Algebric expressions and identity for class 8

Mathematics

1 answer:

Pani-rosa [81]3 years ago

5 0

Answer:

-12p^4

Step-by-step explanation:

4p^3*(-3p)

-12p^4

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Can someone help me with 1. ?

d1i1m1o1n [39]

Make a table of each equation.

Find the point where the two lines end? or meet?

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3 years ago

The points (-2, -1), (5, -4), and (-2, -4) are vertices of a polygon. What is the best name for the polygon?

Genrish500 [490]

A Triangle because it has 3 vertices

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3 years ago

Factorise 3(3x-y)-(y-3x)

snow_lady [41]

Answer:

4(3x-y)

Step-by-step explanation:

Given:

$\displaystyle \large{3(3x-y)-(y-3x)}$

To factor this kind of expression, first, find the common factor.

$\displaystyle \large{3(3x-y)-(-3x+y)}\\\displaystyle \large{3(3x-y)+(3x-y)}$

Notice that in the expression, we have both same (3x-y). Therefore, (3x-y) is our factor.

Let u = 3x-y

$\displaystyle \large{3u+u}\\\displaystyle \large{4u}$

Change u back to 3x-y:

$\displaystyle \large{4(3x-y)}$

Therefore, the factored expression is 4(3x-y).

4 0

2 years ago

What is the overlap of Data Set 1 and Data Set 2?

Simora [160]

Answer:

An additional student came by to inform me that they lost their phone yesterday (he thinks by the bus station). It is an iPhone 13 in a black case. If anyone has come across it, please bring the device to Mr. Velez in room 112 and on behalf of the student, thank you!

Step-by-step explanation:

2-2=95383479234.5424334

4 0

3 years ago

Read 2 more answers

I really don’t get it so please someone help thank cu

4vir4ik [10]

Raj earned 58 and spent 42, so he saved 58-42 = 16.

Michael earned 83 and saved 20, so he spent 63, but that doesn't matter.

for Raj, 100% of his earning is 58, how much is 16 off of it as a percentage?

$\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 58&100\\ 16&x \end{array}\implies \cfrac{58}{16}=\cfrac{100}{x} \implies 58x=1600 \\\\\\ x=\cfrac{1600}{58}\implies \boxed{x\approx 27.586}$

for Michael, 100% of his earnings is 83, how much is 20 off of it as a percentage?

$\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 83&100\\ 20&x \end{array}\implies \cfrac{83}{20}=\cfrac{100}{x}\implies 83x=2000 \\\\\\ x=\cfrac{2000}{83}\implies \boxed{x\approx 24.096}$

and you can see clearly which percentage is higher.

6 0

3 years ago