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2 years ago

Which binomial is a factor of 100x2 – 49?

Mathematics

1 answer:

pentagon [3]2 years ago

6 0

Answer:

Step-by-step explanation:

What you have here is called "the difference of two squares"

Difference means subtraction and both 100x2 and 49 are perfect squares.

The factored form of 100x2-49 is

(10x+7)(10x-7)

Because 10x times 10x is 100x2 and 7 times 7 is 49

One factor has a + and

One factor has a -

It is a pattern worth memorizing!

So 10x + 7 is the factor you're looking for.

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Pleaseee help

Semenov [28]

Answer:

1. 2/4 = 1/2

2. 9/24= 3/8

3. 56/64= 7/8

Step-by-step explanation:

6 0

2 years ago

Find all the zeros of the equation

lapo4ka [179]

Divide both sides by -3, and replace $x^2$ with $y$ . Then

$-3x^4+27x^2+1200=0\iff y^2-9y-400=0$

Factorize the quadratic in $y$ to get

$y^2-9y-400=(y+16)(y-25)=0\implies y=-16,y=25$

which in turn means

$x^2=-16,x^2=25$

But $x^2\ge0$ for all real $x$ , so we can ignore the first solution. This leaves us with

$x^2=25\implies x=\pm\sqrt{25}=\pm5$

If we allow for any complex solution, then we can continue with the solution we ignored:

$x^2=-16\implies x=\pm\sqrt{-16}=\pm i\sqrt{16}=\pm4i$

6 0

3 years ago

Jerry has been staying up late at night to get in some extra study time. He hopes to get accepted into his favorite college and

svet-max [94.6K]

(Answer coming from someone who’s stressed himself)
Upset stomach.
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3 0

2 years ago

Read 2 more answers

Mehwish's temperature at 9:00 .. Was 97.2 ℉. At 4:00 .. Her temperature was risen to 99 ℉. By how many degrees did her temperatu

ValentinkaMS [17]

Answer:

1.8° F

Step-by-step explanation:

Given that:

Mehwish's temperature at 9:00 = 97.2°F

Mehwish's temperature at 4:00 = 99°F

The degree rise in Mehwish's temperature is :

(Mehwish's temperature at 4:00 - Mehwish's temperature at 9:00)

(99°F - 97.2°F)

= 1.8°F

Therefore. The number of degree rise in Mehwish's temperature is 1.8°F

4 0

2 years ago

The area of a circle is 40 pie (3.14). Find the radius of the circle in simplest form.

dezoksy [38]

Area of a circle equation:
A=(3.14)r^2

40(3.14)=(3.14)*r^2
40=r^2
r= square root of 40

simplified radius is 2 times root 10
(See the photo I attached for the work)

7 0

2 years ago