3 years ago

I need help with these questions

1 answer:

4 0

38.=721.8 it's really just a matter of multiplication. I only have he answer for this one but, y'know, work and whatnot. If you would multiply 3 by 3 than wou would do the same for this problem

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What’s x-b divided by a= c.. for b

aivan3 [116]

$x-b:a=c\qquad|-x\\\\-\dfrac{b}{a}=c-x\qquad|\cdot(-a)\\\\b=-a(c-x)\\\\b=-ac-a(-x)\\\\\boxed{b=ax-ac}$

3 0

3 years ago

Fill in the blank. In the triangle below, zº =

lianna [129]

Answer:

$38^{\circ}$

Step-by-step explanation:

In a given triangle, the sum of every angle is always $180^{\circ}$ . Here, we are given a right angle ( $90^{\circ}$ ), as well as another $52^{\circ}$ angle. Simply subtracting from 180 will give us the answer.

$z^{\circ}=180^{\circ}-90^{\circ}-52^{\circ} \\z^{\circ}=90^{\circ}-52^{\circ} \\z^{\circ}=38^{\circ}$

5 0

3 years ago

Read 2 more answers

Guysssss I'm struggling in mathh :( I need help

Sedaia [141]

Answer:

The first two is x=60

Step-by-step explanation:

1.5/90 = 1/x

1.5x = 90 x 1

1.5x/1.5 = 90/1.5

x = 60

5 0

3 years ago

Read 2 more answers

Factorize x3 -2x2 -5x+6

Advocard [28]

Answer: x³-2x²-5x-6=(x-1)*(x-3)*(x+2).

Step-by-step explanation:

$x^3-2x^2-5x+6=\\\\x^3-2x^2+x-x-5x+6=\\\\(x^3-2x^2+x)-6x+6=\\\\x*(x^2-2x+1)-6*(x-1)=\\\\x*(x-1)^2-6*(x-1)=\\\\(x-1)*(x*(x-1)-6)=\\\\(x-1)*(x^2-x-6)=\\\\(x-1)*(x^2-x-2x+2x-6)=\\\\(x-1)*(x^2-3x+2x-6)=\\\\(x-1)*(x*(x-3)+2*(x-3))=\\\\(x-1)*(x-3)*(x+2).$

5 0

2 years ago

A student simplified the radical expression at the right. What mistake did the student make? What is the correct answer?

Leni [432]

X has to be inside the radical.
It would be
$\sqrt{ \frac{5x}{5} }$
Simplify the radical by breaking the radicand up into a product of known factors.

8 0

3 years ago