MATHEMATICS MIDDLE SCHOOL

Factor the expression and exlplain
20b - 16

Answers

Answer 1

Answer:

Answer:

4(5b-4)

Step-by-step explanation:

20b -16

Both terms are divisible by 4 so we can factor out a 4

4*5b -4*4

4(5b-4)

Related Questions

An ordered pair has coordinates that have the same sign. In which quadrant(s) could the point lie
Solve the quadratic equation for x. What is one of the roots? (x + 6)^2 = 49
A dresser in the shape of a rectangular prism measures 2 feet by 2 feet by 6 feet. What is the surface area of the dresser?
Pls help, it’s not 6
Plz help me quick!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

What is the answer to this question please explain (picture included)

Answers

easy peasy
just use PEMDAS and some exonential laws

$(x^(m))(x^(n))=x^(m+n)$
$(x^(m))^(n)=x^(mn)$
$(ab)^(m)=(a^(m))(b^(m))$

also another is $x^{(m)/(n)}=\sqrt[n]{x^(m)}$

so

$[3(2a)^{(3)/(2)}]^(2)$ =
$(3^(2))((2a)^{(3)/(2)}^(2))$ =
$(9)((2a)^{(3)/(2)}^(2))$ =
$(9)((2a)^{(6)/(2))$ =
$(9)((2a)^(3))$ =
$(9)(8a^(3))$ =
$72a^(3)$

The product shown is a difference of squares. What is the missing constant term in the second factor?(–5x – 3)(–5x +?

Answers

Difference of two squares is of the form (a + b)(a - b) or vice-versa. Here, a = -5x and b = 3.
(-5x - 3)(-5x + 3)
Answer: 3

Answer: (–5x – 3)(–5x +3)

Step-by-step explanation:

3 is the answer.

this answer is 100% correct for edge.nuity

A circle has an diameter of 153.86. What is the diameter?

Answers

153.86
You just told me

PLEASE HELP ASAP!? Which equations in point-slope form are equations of the line that pass through the points (4, 5) and (−3, −1)?Choose exactly two answers that are correct.
A. y-3 = 7/6 (x-1)
B. y-5 = 6/7 (x-4)
C. y+1 = 6/7 (x +3)
D. y-4 = 7/6 (x-5)

Answers

I am not sure about point slope, but I can find an equation in slope-intercept form and convert it, so
y=mx+b, m=slope
slope=(y1-y2)/(x1-x2)
we have points
(4,5)
(-3,-1)
(x,y)
x1=4
y1=5
x2=-3
y2=-1
subsitute
(5-(-1))/(4-(-3))=(5+1)/(4+3)=6/7
y=6/7+b
sybsitute and solve for b
(4,5)
x=4
y=5
5=6/7(4)+b
5=24/7+b
5=35/7
subtract 24/7 from both sides
11/7=b
y=6/7x+11/7
convert to the point slope form and find equivilent fraction
since the question asks for 2 answers that are correct and only 2 of the equations have slope of 6/7 I can guess that the answers are B and C

point slope form is

y -y1 = m(x - x1)

First, we need to calculate the slope.

$Slope = (y_2-y_1)/(x_2-x_1) = (5-(-1))/(4-(-3)) = (6)/(7)$

The slope is 6/7

Next, we plug in both points.

m = 6/7, (x1,y1) = (4,5)

The equation will be:
y - 5 = 6/7 (x - 4)

Plugging in m = 6/7, and (x1,y1) = (-3,-1)

The equation will be
y + 1 = 6/7 (x + 3)

Your answer is B and C.

What are vertically opposite angles

Answers

When two lines cross, there are four angles at the place where they cross.
Two angles that do NOT share a side are vertical angles. There are two pairs
of vertical angles where the lines cross.

Also, by the way, vertical angles are always equal to each other. It's often
very helpful to know that.

When two angles of two lines are directly facing one another, or opposite, hope this helps!

What times what equels 900