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3 years ago

Expand.Your answer should be a polynomial in standard form.(x-1)(x+4)=

Mathematics

2 answers:

Montano1993 [528]3 years ago

8 0

Answer:

X^2+3x-4

Step-by-step explanation:

This is the answer

lara [203]3 years ago

3 0

Answer: x^2+3x-4

Step-by-step explanation:

if you f.o.i.l (first, outer, inner, last)

you will get x^2+4x-1x-4

this comes out to be x^2+3x-4

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Solve the equation. Then check your solution.

UNO [17]

<h3>Solve the equation. Then check your solution. </h3><h3>1.6a = -9.12 </h3>

Answer: b) -5.7

Step-by-step explanation:

<em>To solve this equation for the variable a, we have to clear the variable a, dividing both sides of the equation by the coefficient of the variable a. </em>

a = -9.12/1.6 = -5.7

Answer: b) -5.7

<h2><em>Spymore</em></h2>

4 0

3 years ago

Which formula represents calculating the slope?

k0ka [10]

C. All of the above. Both formulas represents in calculating the slope.

<u>Step-by-step explanation:</u>

The slope(m) can be identified by the formula rise over run.

i.e. $m=\frac{rise}{run}$ .

Rise is how much the line gone vertically ( y-axis) from the origin.

Run is how much the line gone horizontally (x-axis) from its origin.

∴ Rise = $y_{2} - y_{1}$

And Run = $x_{2} - x_{1}$ .

⇒ $m=\frac{y_{2} - y_{1}}{x_{2} - x_{1}}$ .

Thus both equations can be used to find the slope of the line intercept.

If the points are given you can chose them yourself from the graph. Just consider any two points on the line.

3 0

4 years ago

Community Gardens

garik1379 [7]

Answer:

not taking action

Step-by-step explanation:

because it is talking about how beautiful the gardens are and it could be said like this, "It makes the neighborhood more beautiful. There can be not taking action about that."

8 0

2 years ago

A shipment of 8 computers contains 3 with defects. Find the probability that a sample of size 2, drawn from the 8, will not cont

liq [111]

Answer:

5/28

Step-by-step explanation:

First of all, probability is defined as the number of ways a certain event can happen divided by the total ways of an event happening. In this scenario, we are asked to find the number of non-defective computers divided by the total ways that a sample of two can be chosen.

The number of ways to choose 2 computers from 8 can be written as $8\choose2$ , which is equal to $\frac{8\cdot7}{2}$ , which is 28. Now, there are 3 defective computers, for a total of 5 non-defective computers, so the probability is 5/28.