use the distributive property and simplify 3c(5a+2b-1)

Answer:

f^-1 (x) =7 − 21x

Step-by-step explanation:

Hope this helps!

Plz give brainliest

y = -72

Hope this helps :)

Answer:

14 cm per day

Step-by-step explanation:

To find the water level increase rate in cm per day, divide 84 by 6, since it increased by 84 cm in 6 days:

84/6

= 14

So, the water level increase rate in 14 cm per day

Answer:

80 degree angle while  second has a 50 degree angle(looks like an icecream cone)

Step-by-step explanation:

Answer:

They aren't equivalent, they're congruent. That's why it marked your answer wrong.

Step-by-step explanation:

Answer:

70 sec (1 min 10 sec)

Step-by-step explanation:divide 28 by 2 and get 14 and multiply that by 5 to get 70 sec

hi there! here's my answer for you...

i do not think there is an answer since the equation you have given is not a conic section. therefore, there is no vertex form, axis of symmetry, or vertex.

hope this helped. have a good one!

Answer:

Hope your having a great day.

Step-by-step explanation:

God Bless, and try not to stress to much about school your doing great :)

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basta yan yong answer

Answer:

y=8(5)^(x)

Step-by-step explanation:

Answer: The answer is D, unless I am extremely dumb

Step-by-step explanation: The x is going by 2 so, the next would be 11, and the y is going by one so the next would be 19.

Answer: Dear friend google

Step-by-step explanation: search it up

Answer:

[tex]f(x) = 144[/tex]

Step-by-step explanation:

This problem deals with a function. All this question is asking is to plug in -4 every time an x appears.

So, let's do that:

[tex]f(-4) = 10(-4)^{2} + 3(-4) - 4[/tex]

[tex]f(-4) = 10(16) - 12 - 4[/tex]

[tex]f(-4) = 160 - 16[/tex]

[tex]f(-4) = 144[/tex]

-y+4x=19

I think that's it but I'm not sure

Answer:

2x-y=20 I hope this is right!

Step-by-step explanation:

2*x

=2x

2*4

=8

y=2x-8(2)

y=2x-16-3

y=2x-20

20+y=2x

-y       -y

20=2x-y

Answer:

[tex]T_n = 7.143(0.7^n)[/tex]

Step-by-step explanation:

If a ball bounces to a height of 5feet, the initial drop = 5feet

If the ball rebounds to 70% of its previous height after each bounce, the next height after rebouncing will be expressed as;

= 70% of 5

= 70/100 * 5

= 0.7*5

= 3.5 feet

The next height will be 0.7*3.75 = 2.45 and so on

The  heights wil form a sequence as thus;

5, 3.5, 2.45...

This sequence forms a geometric progression.

To get the function that could be used to model the nth term in the sequence of heights of the ball after the initial drop, w will find the nth term of the sequence

[tex]T_n = ar^{n-1}[/tex]

a is the first term of the sequence

n is the number of terms

r is the common ratio

From the sequence:

a = 5

[tex]r = \frac{3.5}{5} = \frac{2.75}{3.5} = 0.7[/tex]

Substitute the given values into the formula

[tex]T_n = 5(0.7)^{n-1}\\T_n = 5(\frac{0.7^n}{0.7^1} )\\T_n = \frac{5}{0.7}\times 0.7^n \\T_n = 7.143(0.7^n)[/tex]

The nth tern=m required is [tex]T_n = 7.143(0.7^n)[/tex]

The amount of work done if a person carries 5n of candy 25m when trick or treating is 125.

In order to determine the amount of  work done we are going to multiply the force by the distance.

Using this formula

Work done = Force  x Distance

Where:

Force = 5n

Distance  = 25m

Let plug in the formula

Work done = 5 x 25

Work done= 125

Inconclusion the amount of work done if a person carries 5n of candy 25m when trick or treating is 125.

Learn more here:

https://brainly.com/question/18818154

The work done  if a person carries 5n of candy 25m when trick or treating is; 125 J.

We are given;

Force carried; F = 5n

Distance covered; d = 25 m

Now, the formula for work done is given as;

Work done = Force × Distance

Thus;

Work done = 5 × 25

Work done = 125 N.m

In conclusion, the work done  if a person carries 5n of candy 25m when trick or treating is 125 N.m or 125 J.

Read more at; https://brainly.com/question/18818154

Answer:

∠AEC = 139°

Step-by-step explanation:

EC bisects ∠BED. This means that the line EC cuts the angle in half, so        ∠BEC = 4x + 1

Work Shown:

Use the pythagorean theorem

a^2+b^2 = c^2

21^2 + 20^2 = c^2

441 + 400 = c^2

841 = c^2

c^2 = 841

c = sqrt(841)

c = 29

Answer:

-27x+63

Step-by-step explanation:

you do -9 times 3x then -9 times -7, two negatives creates a positive, and so 9 times 7 equals 63

hope this helps :^)

-9(3x-7)

Multiply each term in the parentheses by -9

-9×3x-9×(-7)

Calculate the product

-27x-9×(-7)

now we do the same thing only different way ok

-9×3x

Multiplying a negative and a positive equals a negative : (-)x(+)=(-)

-(9×3)x

Multiply the numbers

-27x

-9×3x-9×(-7)

Multiply the numbers

-27x+63

Now we do the same thing only different way ok

-9×(-7)

Multiply two negatives equals a positive: (-)×(-)=(+)

9 × 7

multiply the numbers

63

Solution: -23x+63

PLEASE MARK ME AS BRAINLIEST

Answer:

Square root of 50

Step-by-step explanation:

50.1 repeating, negative 50/2 and negative 50.1 are all rational, while square root of 50 is irrational

Answer:

Square root of 50

Step-by-step explanation:

50.1 repeating, negative 50/2 and negative 50.1 are all rational, while square root of 50 is irrational

Answer:33,325,000

Step-by-step explanation:95,976,000÷2.88=33,325,000

Answer:

4s + 6a + 5c = 1,660

s = 2a

s + a + c = 353

Step-by-step explanation:

s = # of student tickets bought

a = # of adult tickets bought

c = # of senior citizen tickets bought

Answer: 2 inches

Step-by-step explanation:

14 inches

Step-by-step explanation:

Length of the hole = 16(½) inches

Length of the dirt = 8(¾)inches

The distance between the top of the pile to the bottom of the hole = ?

Since the dirt is beside the hole and not inside the hole, we can find it's length using addition.

Distance from the top to the bottom = length of dirt + length of the hole

Length of dirt = 8×¾ = 6 inches

Length of the hole = 16 × ½ = 8 inches

Distance from the top of the dirt to the bottom of the hole = (6 + 8) inches

Distance from the top of the dirt to the bottom of the hole = 14 inches

Note: the only way we can use subtraction here is if the hole was filled with dirt, what's the distance that's left

Distance left = length of hole - length of dirt

Distance left = 8 - 6 = 2 inches .

Answer:

-4

Step-by-step explanation:

[tex]Given:[/tex] Line segment PQ with points P(-2.5) and Q(-1,1)

m = (y₂ - y₁)/(x₂ - x₁)

m = (1 - 5)/(-1 - (-2)) = -4/1 = -4

Answer:

-4/1

Step-by-step explanation:

Answer:

6y

Step-by-step explanation:

There are 6 people in each boat and y boats. So, there would 6y people total.

ex:

There are 24 boats.

24 x 6 = 144

Answer: 15, and 44 are integers.

Step-by-step explanation: For 15 to be an integer, 15 has to be a whole number. Furthermore, for 15 to be an integer, you should be able to write 15 without a fractional or decimal component. 15 is a whole number that can be written without a fractional component, thus 15 is an integer, as well as 44.

Answer:

B.) X less than or equal to 16.5

Step-by-step explanation:

If you take his limit, 40 and subtract the 7 dollars you will get 33. Then, divide that by two because he will need two tickets and you will get 16.5. It can't be greater than 16.5 because he will go over his budget.

Answer:

x ≤ 16.5

Step-by-step explanation:

40 ≤ 2t + 7 Subtract 7 from both sides.

40 - 7 ≤ 2t + 7 - 7

33 ≤ 2t Divide both sides by 2.

[tex]\frac{33}{2}[/tex] ≤ [tex]\frac{2t}{2}[/tex]

16.5 ≤ t or t ≥ 16.5

Answer: B

Step-by-step explanation:

We have to find the amount that Maya painted IN ALL, which means we must add 3/4 and 1/8. First, look for the answer choice that has 1/8 as a number (B and A). However, none of the answer choices have 3/4 as an answer, so we must convert it into an equivalent fraction, 6/8. You get 6/8 by multiplying both the numerator and denominator by 2. Therefore the answer is B.

Answer:

12*10=120

Step-by-step explanation: