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3 years ago

Factor each of the following using differences of squares

Mathematics

2 answers:

professor190 [17]3 years ago

8 0

The first is (x+10)(x-10)

The second one is (3x+14)(3x-14)

timofeeve [1]3 years ago

4 0

The first one is (x+10)(x-10)

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II. Using Radians to Measure Arcs and Angles

padilas [110]

Pi radians is 180 degrees.
A
1) 180/3=60
2) 270
3) 45
4) 3240
B
1) 100/180=5/9
3) 30/180=3/18
5) 1/180
C
1) (pi) cm
2) 2pi

4 0

3 years ago

Find the area of a square with a side measure of 3x − 6 feet.

Wittaler [7]

Area of a square: s^2

Because we know the length of one side, we can multiply it by itself to find the area.

(3x - 6)(3x - 6)

9x^2 - 18x - 18x + 36

Combine like terms.

9x^2 - 36x + 36

<h3>The correct answer is A, or the first answer. </h3>

6 0

3 years ago

-1/3x+2x=3 3/4 what does the variable represent?

svet-max [94.6K]

Start off by combining like terms on the LHS (the terms with x in them).

So we get $\frac{-1}{3}x+2x= \frac{-1}{3}x+ \frac{6}{3}x= \frac{-5}{3}x$

Replacing this result with what we had before on the LHS, we get $\frac{-5}{3}x=3 \frac{3}{4}= \frac{9}{4}$

⇒Solve for x (divide both sides $\frac{-5}{3}$ )
⇒Don't forget about reciprocity rules when dividing. This is the same as multiplying both sides by $\frac{3}{-5}$

⇒ $x= \frac{9}{4}( \frac{3}{-5})
$
⇒ $x= -\frac{27}{20}=-1\frac{7}{20}$ ***This is a proper fraction

4 0

3 years ago

Read 2 more answers

Hello I need help on this math question

Licemer1 [7]

Answer:

94.2 in squared

Step-by-step explanation:

lateral area plus area of both flat sides

37.68 + 2(3.14*3^2)

37.68 + 56.52 = 94.2 in squared

4 0

2 years ago

Can someone please answer this really quick question?

julia-pushkina [17]

|2x-3|=2x-1

need to consider two cases

(1) 2x-3<0 --> x<3/2

-(2x-3)=2x-1

x=1, and this is <3/2 so that's a valid solution

(2) 2x-3>=0 --> x>=3/2

2x-3=2x-1

-3 = -1 so there no solution for x>=3/2

The single solution is x=-1

6 0

3 years ago