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3 years ago

What is -15x + 80 > 170

Mathematics

1 answer:

Korolek [52]3 years ago

3 0

Answer:

Step-by-step explanation:

Value of x should be less than (-6).

x = { .......,-9,-8,-7}

For example:

-15*-7 +80 = 105+80 = 185 >170

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Which identity coukd be used to rewrite x^4-100

kupik [55]

-100+x^4, adding a negative is the same as subtracting, hope this helps. :)

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3 years ago

In the diagram below, BD is parallel to XY. What is the value of x?

alexira [117]

Answer:

A. 55

Step-by-step explanation:

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3 years ago

Read 2 more answers

Factorise 3x^3 - 12xy^2

igomit [66]

Answer:

we can conclude that:

$3x^3\:-\:12xy^2=3x\left(x+2y\right)\left(x-2y\right)$

Step-by-step explanation:

Given the expression

$3x^3-12xy^2$

Let us factorize the expression

$3x^3-12xy^2$

Apply the exponent rule: $a^{b+c}=a^ba^c$

$3x^3\:-\:12xy^2=3xx^2-12xy^2$

Rewrite 12 as 4 · 3

$=3xx^2-4\cdot \:3xy^2$

Factor out the common term 3x

$=3x\left(x^2-4y^2\right)$

$\mathrm{Apply\:Difference\:of\:Two\:Squares\:Formula:\:}x^2-y^2=\left(x+y\right)\left(x-y\right)$

$=3x\left(x+2y\right)\left(x-2y\right)$

Therefore, we can conclude that:

$3x^3\:-\:12xy^2=3x\left(x+2y\right)\left(x-2y\right)$

8 0

3 years ago

Please help with my math :( i give u 10 points

nordsb [41]

Answer:

It Might be 80 Ngl I see why you need help so ima guess sorry

Step-by-step explanation:

5 0

3 years ago

Dimitri is helping to plan the school talent show. Each performer for the talent show has 7 minutes for his or her performance,

Kaylis [27]

15 performances can be accommodated

Solution:

Given that,

Each performer for the talent show has 7 minutes for his or her performance

The introduction for the talent show is 25 minutes long

The entire show including the introduction, will last 130 minutes

Thus the remaining time for performances is:

Performance time = 130 minutes - 25 minutes

Performance time = 105 minutes

To find, the number of performances, divide the 105 by 7 minutes

$Number\ of\ performances = \frac{105}{7} = 15$

Thus 15 performances can be accommodated

5 0

4 years ago