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3 years ago

Factorise x2+3x-4. please

Mathematics

1 answer:

solmaris [256]3 years ago

4 0

Answer:

(−1) (+4)

Step-by-step explanation:

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Use synthetic division to solve (x^4 – 1) ÷ (x – 1). What is the quotient?

Alenkinab [10]

Quotient is:

${ x }^{ 3 }+{ x }^{ 2 }+x+1$

Remainder: 0

Answer and workings in the attachment below.

8 0

4 years ago

Read 2 more answers

I need help on 12 and 13

Jlenok [28]

If I'm understanding the question right:
12) 24 x 10^4
13) 93,000,000

7 0

3 years ago

(-7,-8),(-6,7) Distance formula

IRISSAK [1]

Step-by-step explanation:

let

(-7,-8) =(x1, y1)

and (-6,7)=(x2, y2)

by the formula

d=√(y2-y1) ²+(x2-x1) ²

=√(7+8)²+(-6+7)²

=√15²+1²

= √225+1

= √226

7 0

3 years ago

sammi is trying to wrap a gift for her brother. the gift fits into a cube-shaped box with a side length of 9 inches. how many sq

Flauer [41]

Answer:

$A=486\ \text{inches}^2$

Step-by-step explanation:

The area of a cube shaped box is given by :

$A=6s^2$

Where

s is the side length and A is the surface area

We have, s = 9 inches

So,

$A=6\times (9)^2\\\\A=486\ \text{inches}^2$

So, the required area is $486\ \text{inches}^2$ .

8 0

3 years ago

Solve AABC. Round your answers to the nearest hundredth, if necessary

Aloiza [94]

Answer:

$C=25^{\circ},\\a\approx 10.72,\\b\approx 11.83$

Step-by-step explanation:

The sum of the interior angles of a triangle is 180 degrees. Thus, angle C must be $180-90-65=25^{\circ}$ .

In any triangle, the Law of Sines is given by $\frac{\sin A}{a}=\frac{\sin B}{b}=\frac{\sin C}{c}$ .

Therefore, we have:

$\frac{\sin 90^{\circ}}{b}=\frac{\sin 25^{\circ}}{5},\\\\b=\frac{5\sin90^{\circ}}{\sin 25^{\circ}}=11.8310079158\approx \boxed{11.83}$

$\frac{a}{\sin 65^{\circ}}=\frac{5}{\sin25^{\circ}},\\a=\frac{5\sin 65^{\circ}}{\sin25^{\circ}}=10.7225346025\approx \boxed{10.72}$

8 0

3 years ago