Help plz and fix the mistakes with explanations to everything thxs !!

Answers

Answer 1

Answer: C.) Is 4 to the 8 power.
D.) Is 6 to the 9 power.
F.) Is 3 to the 9 power.
G.) Is 173 to the 11 power over 1000 to the 11 power.
H.) Is 7569 over 10000.
I.) Is 25 over 4.

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Can somebody please help me

Answers

Answer:

idk can we

Step-by-step explanation:

!!!!!!!!!!!!50 POINTS!!!!!!!!!!! Question bellow!

Answers

7x - 3y = 13
x - 2y = 5

To solve a system of equations, we first need to solve for one of the variables. In this case, let's solve for x.

7x - 3y = 13 Given
7x = 3y + 13 Add 3y to both sides
x = 3/7y + 13/7 Divide both sides by 7

x - 2y = 5 Given
x = 2y + 5 Add 2y to both sides

Now we can set the two equations equal to each other, since they both equal x.

3/7y + 13/7 = 2y + 5 Set the equations equal to each other
13/7 = 11/7y + 5 Subtract 3/7y from both sides; 2 can also be written as 14/7, since 14 divided by 7 is 2, so just subtract 3 from 14
-22/7 = 11/7y Subtract 5 from both sides
-2 = y Multiply both sides by 7/11, since you multiply fractions by their reciprocal to cancel; you might want to use a calculator for this

Now we know that y = -2. Let's substitute that into one of our original equations to get x.

x = 2y + 5 Given
x = 2(-2) + 5 Substitute y for -2
x = -4 + 5 Multiply
x = 1 Add

The answer is x = 1, y = -2.

Hope this helps!

Solutions

To solve the equation we have to use substitution. "Substitution" means putting numbers where the letters are placed.

Calculations

1) Solve for x in x−2y=5

⇒ Solve for x

x−2y=5

⇒ Add 2y to each side

x=5+2y

2) Substitute x=5+2y into 7x−3y=13

⇒ Start with the original equation

7x−3y=13

⇒ Let x=5+2y

7(5+2y)−3y=13

⇒ Simplify

35+11y=13

3) Solve for y in 35+11y=13

⇒ Solve for y

35+11y=13

⇒Subtract 35 from both sides

11y=13−35

⇒ Simplify 13−35 to −22

11y=−22

⇒ Divide both sides by 11

y=−22 ÷ 11

⇒ Simplify 22 ÷ 11 to 2y=−2
y= -2

4) Substitute y=−2 into x=5+2y

⇒ Start with the original equation

x=5+2y

⇒ Let y=−2

x=5+2×−2

⇒ Simplify

x=1

Therefore,

x=1

y=−2

The Smiths are sending out a batch of holiday cards. Emily signed 2/5 of the cards. Then Josh signed 1/9 of the remaining cards. Tatiana signed 20% of what Josh had left. If there were 75 cards in all, how many cards are left to be signed?

Answers

32 Cards are left to be signed.

What is probability ?

The proportion of all conceivable outcomes to the number of outcomes in an exhaustive set of equally likely outcomes that result in a certain event.
Example -Since there is a 50% chance that the outcome will be heads, we can anticipate 50 heads.

total cards are 75,

then , 2/5 of 75 = 30.

now left cards 75 -30 = 45

That leaves 45 cards

1/9 of 45 = 5 cards,

so 45 -5 = 40 ⇒ that leaves 40.

now,

Calculate 20% of 40,

40 × $(20)/(100)$ = 8

that is 8 cards.

cards are left to be signed 40 - 8 = 32

Therefore, 32 Cards are left to be signed.

Learn more about probability brainly.com/question/21976495 here

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Answer:

There are 32 cards yet to be signed.

Step-by-step explanation:

Simplify the expression. x2/3 · x7/2

Answers

Answer:

x^2/3 x7/2

=1/6 x^9

Step-by-step explanation:

try using mathpapa

Lee rolls a fair number cube labeled 1 through 6 two times. On both rolls, the number6 lands face-up. In this situation, the second roll isA dependent on the first roll, because the outcome of the first roll affects the outcome of thesecond rolldependent on the first roll, because the outcome of the first roll does not affect the outcome ofthe second rollindependent of the first roll, because the outcome of the first roll affects the outcome of thesecond rolln independent of the first roll, because the outcome of the first roll does not affect the outcome ofthe second roll

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D. The last one.

independent b/c the outcome of the first roll does not affect the second

you buy two rolls of wrapping paper. each roll has the same lateral surface area. what is the diameter of roll B?

Answers

The area of lateral surface is equal that the perimeter multiply by the length. So the lateral surface area of roll A is 3*π*30=90π. Roll B: d*π*24=24dπ. Put them together: 90π=24dπ. So d=3.75 in.

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