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Nataly_w [17]
3 years ago
6

Factorise the following:x²-7x-30​

Mathematics
1 answer:
Anna35 [415]3 years ago
3 0

Answer:

x²-(10-3)x-30

x²-10x-3x-30

x(x-10)-3(x-10)

(x-3)(x-10)

Step-by-step explanation:

I hope this helps! Stay safe <3

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You multiply 36×10 and you get 360 gallons

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What are the coordinates of the orthocenter of LMN ?
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Step-by-step explanation:

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A group of dental researchers are testing the effects of acidic drinks on dental crowns. They have five containers of crowns lab
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\begin{array}{cccccc}{x} & {V} & {W} & {X} & {Y} & {Z} & P(x) & {0.20} & {0.20} & {0.20} & {0.20} & {0.20} \ \end{array}

Step-by-step explanation:

Given

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Required

The probability model

To do this, we simply calculate the probability of each container.

So, we have:

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P(Y) = \frac{n(Y)}{n(S)} = \frac{1}{5} = 0.20

P(Z) = \frac{n(Z)}{n(S)} = \frac{1}{5} = 0.20

So, the probability model is:

\begin{array}{cccccc}{x} & {V} & {W} & {X} & {Y} & {Z} & P(x) & {0.20} & {0.20} & {0.20} & {0.20} & {0.20} \ \end{array}

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the is the value of b in ax -by =-5

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