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Vilka [71]
3 years ago
10

Help pls i dont understand this

Mathematics
2 answers:
Zarrin [17]3 years ago
7 0
Exponects easy
8×8×8×8
4×4×4
7×7
Nuetrik [128]3 years ago
7 0
Remember
(ab)/c=(a)(b/c), we can split them
and
(x^m)(x^n)=x^(m+n)
and
(x^m)/(x^n)=x^(m-n)

so

(8x^4)(4x^3)/(7x^2)=
(8)(x^4)(4)(x^3)/((7)(x^2))=
(8)(4)(x^4)(x^3)/((7)(x^2))=
(32)(x^7)/((7)(x^2))=
(32/7)((x^7)/(x^2))=
(32/7)(x^5

answer is \frac{32x^5}{7}
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A day of the week is randomly chosen. What is the probability of choosing monday or friday?
Karo-lina-s [1.5K]

Answer:

You have a 2/7ths chance of picking Monday or Friday.

Explanation

There are 7 days of the week so you have a 2 out of 7 chance of picking Monday or Friday

8 0
3 years ago
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255,250,245,... Find the 40th term.
Brut [27]
An=-5n+260
A40=60
So the Awnser is 60


(Hope this helped!!)
5 0
2 years ago
I need some help with this rational equation. It's supposed to = -1, but for some strange reason I keep getting x^2 +2x = -1.
Rasek [7]

This one is so easy that your brain refuses to accept it.
It's looking for a harder answer, but can't find it !

You're totally correct, as far you went.     x² + 2x does = -1

Now add ' 1 ' to each side:     x² + 2x + 1 = 0

Can you factor that quadratic ?
Can you mash it through the quadratic formula ?

Actually, it's the simplest possible perfect square.

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So the solutions of     x² + 2x + 1 = 0  are both   x = -1 .

Don't say anything.
I know it's embarrassing.

7 0
3 years ago
Given the triangle below, what is the measure of x to the nearest foot?
luda_lava [24]

Answer:

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Since the triangle is right angled ; we could use trigonometry ;

Using the angle , 40° ; adjacent side, = 14 feets ; hypotenus = x

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Cos 40 = 14 / x

0.7660444 = 14 / x

0.7660444x = 14

x = 14 / 0.7660444

x = 18.27

= 18 ( nearest foot)

8 0
3 years ago
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pantera1 [17]

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That will be $7

4 0
3 years ago
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