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2 years ago

Help me and i will give u a brainlliest

Mathematics

1 answer:

kvv77 [185]2 years ago

3 0

Answer:

No solution

Infinate amount of soluions

One solition

No solution

Step-by-step explanation:

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Factor by grouping <br> x^3+2x^2-9x-18

netineya [11]

Answer:

(x+2)(x+3)(x-3)

Step-by-step explanation:

Group and factor out the greatest common factor (GCF), then combine.

Hope this helps!!

6 0

2 years ago

Write -4i + (1/4-5i)-(-3/4+8i)+17i as a complex number in standard form

Alex17521 [72]

Answer:

Step-by-step explanation:

$-4i+\left(\dfrac{1}{4}-5i\right)-\left(-\dfrac{3}{4}+8i\right)+17i\\\\=-4i+\dfrac{1}{4}-5i+\dfrac{3}{4}-8i+17i\\\\=\left(\dfrac{1}{4}+\dfrac{3}{4}\right)+(-4i-5i-8i+17i)\\\\=\dfrac{1+3}{4}+(-4-5-8+17)i\\\\=\dfrac{4}{4}+0i\\\\=1$

5 0

2 years ago

Last one for the night but yeah

Jobisdone [24]

Answer: RQS= 90, QRS= 43, QSR= 47

Solving Steps:
180-90=90 (all the angles combined equal 180)
9x-2+10x-3=90
19x-5=90
19x=90+5
19x=95
x=5

9(5)-2= 43
10(5)-3= 47

4 0

2 years ago

Which of the following represents the area of a rectangle whose length is 5x − 3 and whose width is x + 7?

Nookie1986 [14]

Answer : option C, 5x2 + 32x − 21

In the rectangle, the length = 5x - 3 and width = x + 7

We know the formula for area of rectangle = length * width

Area of rectangle = (5x-3)(x+7)

WE multiply it using FOIL method

F - First terms, 5x * x = $5x^2$

O- Outer terms, 5x * 7 = 35x

I - Inner terms, -3 * x= -3x

L - Last terms, -3 * 7 = -21

Now we add all the terms

$5x^2 +35x -3x -21$

combine like terms

$5x^2 +32x -21$

So area of a rectangle = $5x^2 +32x -21$

4 0

2 years ago

If each pizza has 15 slices how many pizzas should they order

Natalka [10]

Answer:

It depends on how many people there are, and how much pizza they want.

7 0

2 years ago