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3 years ago

Pls help i am on a timer

Mathematics

2 answers:

salantis [7]3 years ago

8 0

Answer: (x-6)(x+1)

Step-by-step explanation:

Sum : x2 − 5 x- 6

x2 + x-=6 x − 6

factor pair: x 2 + x − 6 x − 6

x( x+ 1 ) − 6 ( x + 1 )

rewrite from: x (x + 1 ) − 6 ( x + 1 )

(x-6)(x+1)

maria [59]3 years ago

3 0

Answer:

A: (x-6)(x+1)

Step-by-step explanation:

We need to find 2 numbers that add to make -5 and multiply to make -6.

We already have the numbers infront of us, so by process of elimination we can remove B and D.

For the numbers, we need a positive number and a negative number (two negatives make a positive). We can eliminate C because at first -3 multiplied by 2 is -6. However, when -3 is added to 2 we get -1.

If we expand A, it makes the expression that needs to be factorised because...

-6 × 1 = -6

-6 + 1 = -5

So expanding it properly we get.

x² - 6x + x - 6

Simplify.

x² - 5x -6

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A school bought 45 band uniforms and 18 musical instruments. If the

Oxana [17]

Answer:

45 times 89

Step-by-step explanation:

The instuments are irrelevant and are only there to distract you.

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3 years ago

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If x = -3, y = 5 and z = -2, evaluate the following: help plsssss note giving brilst

VARVARA [1.3K]

Answer:

3) x^2-yz/z^2

x = -3, y = 5 and z = -2 plug in these values

-3^2 -5(-2) /-2^2

= -1/4

decimal form: -0.25

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x = -3, y = 5 and z = -2 plug in these values

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x = -3, y = 5 and z = -2 plug in these values

(-3+5/-2)+(5+(-2)/-3)

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3 0

3 years ago

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Consider the function.

Licemer1 [7]

Answer:

Option 4

Step-by-step explanation:

Given function is,

$f(x)=2\frac{1}{2}-3\frac{1}{3}x$

Steps to get the inverse of the given function,

Step 1,

Convert the function into equation,

$y=2\frac{1}{2}-3\frac{1}{3}x$

Step 2,

Interchange the variables 'x' and 'y',

$x=2\frac{1}{2}-3\frac{1}{3}y$

Step 3,

Solve the equation for the value of y,

$x-2\frac{1}{2}=-3\frac{1}{3}y$

$x-\frac{5}{2}=-\frac{10}{3}y$

$-x+\frac{5}{2}=\frac{10}{3}y$

$-3x+\frac{15}{2}=10y$

$-\frac{3}{10}x+\frac{15}{20}=y$

$y=-\frac{3}{10}x+\frac{3}{4}$

Step 4,

Convert the equation into inverse function,

$f^{-1}x=-\frac{3}{10}x+\frac{3}{4}$

For x-intercepts,

Substitute y = 0,

$0=-\frac{3}{10}x+\frac{3}{4}$

$\frac{3}{10}x=\frac{3}{4}$

$x=\frac{10}{4}$

$x=\frac{5}{2}$

$x=2\frac{1}{2}$

Therefore, x-intercept of the inverse function is $(2\frac{1}{2},0)$ .

Option 4 will be the answer.

8 0

3 years ago

I need the correct answer

BlackZzzverrR [31]

It's 5,

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3 years ago

Please help!!! 3(x + 8) − 1 = 3x + 4

dmitriy555 [2]

Answer:No value

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