PLEASE HELP 20 points!

Step-by-step explanation:

5⁴×5² = 5⁶

10⁶/10³ = 10³

so, we have 5⁶/10³ = 15.625

and in scientific notation we have to write the first digit (which is not 0) in front of the decimal point, and the following digits of the number as pairings after the decimal point, and then indicate a multiplication with a power of 10 to tell us the right position of the decimal point in the plain number.

so, 15.625 as plain number is

1.5625 × 10¹ in scientific notation.

therefore option 1 is correct.

Answer:

( 2x^62- 3x) - 5 = 0

2x^62 - 3x - 5 = 0

X = - 1

- 5/2

The it is my dear friend

Answer:

-36x-36x

Step by step explanation:

4(9x+9)

-36x -36x

Answer:

Step-by-step explanation:

[tex]-4\left(9x+9\right)[/tex]

Apply distributive law:

[tex]-4\times \:9x-4\times \:9[/tex]

[tex]-36x-36[/tex]

Answer:

angle 4 is the alternate angle

Answer: (A) angle 1

Step-by-step explanation:

Let y be f(x)

[tex]\\ \sf\longmapsto y=4x-12[/tex]

Swipe the values

[tex]\\ \sf\longmapsto x=4y-12[/tex]

[tex]\\ \sf\longmapsto 4y=x+12[/tex]

[tex]\\ \sf\longmapsto y=\dfrac{x+12}{4}[/tex]

[tex]\\ \sf\longmapsto y=\dfrac{1}{4}x+3[/tex]

Hence.

[tex]\\ \sf\longmapsto f^{-1}(x)=\dfrac{1}{4}x+3[/tex]

Let y=f(x)

Now interchange the variables

The y we need now

Divide both sides by 4

This is the inverse

Answer:

Step-by-step explanation:

Answer:

Number 3 is correct.

129.19m

Step-by-step explanation:

You might be wondering how did I got 32⁰, well, that's because they are alternate angles.

Now, we're trying to find the opposite side of the triangle.

Using the laws,

we got cos32⁰=x/243.8

243.8cos32⁰=x

129.19⁰

Mark me as Brian list?

Answer:

4x –11y < -5, x=7

Step-by-step explanation:

[tex]\huge\mathtt\colorbox{white}{See attachment pl}[/tex]

Answer:

cow is 65bpm

horse is 38bpm

Step-by-step explanation:

cow is given

horse divide total beats by total min

Answer:  

y = 3x

y = 2.2x

y=1/2x

Step-by-step explanation:

i did the test thank me later

Answer:

Both angels are 70 and both added are 140.

Step-by-step explanation:

Because of the rules, that's names i never remember angle 1 and angle 2 are both 70° and obiously they equal 140.

Answer:

9 1/2 ÷20

9/1 +1/2 ÷20 ( convert to an improper frqction)

18/2 + 1/2 ÷20 ( Multiply 9/1 by 2/2)

19/2 ÷20 ( add 18/2 and 1/2)

19/2 ×1/20 (dividing by 20 is the same as multiplying by 1/20)

19/40

0.475

here!

and here’s a link if you want to understand how to do it!

https://www.khanacademy.org/math/algebra-home/alg-intro-to-algebra/alg-manipulating-expressions/a/combining-like-terms-reminder

Answer:

[tex]-4b^3 - 4a^3 + 5a^3 b^2[/tex]

Step-by-step explanation:

Hope it helps!!

Answer:

-2.5 or -5/2

Step-by-step explanation:

To find the slope we need to find the change in y and divide it by the change in x:

m = change in y ÷ change in x

m = (-5 - 20) ÷ (11 - 1)

m = 25 ÷ -10

m = -2.5 or -5/2

Hope this helps!

Answer:

its the yoyo

Step-by-step explanation:

it was right on the khawn acdemy thing.

Answer:

250 : 500 : 750 : 1000

Step-by-step explanation:

2500 ÷ 1+2+3+4

2500 ÷ 10

250

Therefore the answer is,

1 : 2 : 3 : 4

250 : 500 : 750 : 1000

Answer:

-17

Step-by-step explanation:

−18 + 1 = −17

Answer:

6 × 4 = 25

6 + 4 = 10

hope this helps

Answer:

Step-by-step explanation:

x * y=-21

x+y =-10

we use elimination method to solve

x * y = -21

x + y = -10

x = -11

then replace the y s with -11

x * y = -21

x * -11 =-21

x *-11 + -11 = -21+-11

x = -32

x + y = -10

x +-11 = -10

x + -11--11 = -10--11

x + 0 = -10+11

x = 1

x =1

y = -11

Answer:

It's 15

i took the test

Step-by-step explanation:

Answer:

1/5

Step-by-step explanation:

For every bird in the store there will be 5 fish.

Because there is 5 times more fish then birds.

Using the ratio concept, the number of birds to fish expressed as a ratio is 1/5

Given the Parameters :

Ratio of the number of birds to fish can be expressed thus :

15 : 75

Divide both sides by 15

1 : 5

Hence, the ratio of birds to fish is 1/5

Learn more : https://brainly.com/question/18796573

Answer:

1 teacher female

Step-by-step explanation:

Answer:

Teacher?

Step-by-step explanation:

Well if the other female isn't a student then it must be the teacher.

The measurement of angle b is 128°

Step-by-step explanation:

90 cents is ur answer i believe

Answer:

9.30$

Step-by-step explanation:

take your number (93$) and multiply it by 10% (.10) which is 9.3, or 9.30$

93 x .10 = 9.3

Hope this helps!

Answer:

really I am confused and you are putting this here

Answer:

h = g^2 f

Step-by-step explanation:

because it just is your welcome

Step-by-step explanation:

(x/2) +(y/-8)=1

[tex] \frac{x}{2} - \frac{y}{8} = 1[/tex]

well that is the equation

Answer:

y=(y/x+8/x) x-8

Step-by-step explanation:

Answer:

D.

Step-by-step explanation:

It is simple. Subtract 7* from 65* to get you 58* F.

Answer:

its B

Step-by-step explanation:

I did this in class