Simplify the expression

Simplify The Expression

Answers

Answer 1

Answer:

B

Step-by-step explanation:


Related Questions

jina runs 4 miles in 30 minutes. at the same rate, how many miles would she run in 48 minutes

Answers

Answer:

6.4

Step-by-step explanation:

You want to divide 30 by 4 to figure out the rate.

30 / 4 = 7.5

Now you divide again, taking the 48 into the equation.

48 / 7.5 = 6.4

Jina would run 6.4 miles in 48 minutes, following the same rate.

The sum of 3 consecutive even integers is 48. Find all three inters

Answers

Answer: 15 16 17

Step-by-step explanation: Add them together and you should get 48

PLEASE HELP ME WITH THIS MATH PROBLEM FOR 26 POINTS AND BRAINLIEST AND EXTRA POINTS IF YOU GET THE BRAINLIEST FIRST!!!!! THIS IS VERY URGENT!!

Answers

Answer:

The answer is  C [ the third choice]

Step-by-step explanation:

Answer: I'm not sure what the answer is so I'd either choose :

C.) n > 6/7 or

D.) n > - 6/7

A ball is thrown from the top row of seats in a stadium. The function
ℎ()=−162+64+80

gives the height, in feet, of the ball t seconds after it is thrown. How long will it be before the ball hits the ground

Answers

Answer:

It will be 5 seconds before the ball hits the ground  

Step-by-step explanation:

∵ A ball is thrown from the top row of seats in a stadium

∵ The function

h(t) = −16t² + 64t + 80 , gives the height, in feet, of the ball t seconds

   after it is thrown

∵ The ball hits the ground

→ That means h(t) = 0

∵ h(t) = 0

0 = -16t² + 64t + 80

→ Reverse the two sides

∴ -16t² + 64t + 80 = 0

→ Divide both sides by -16 to simplify it

∵  [tex]\frac{-16t^{2}}{-16}+\frac{64t}{-16}+\frac{80}{-16}=\frac{0}{-16}[/tex]

t² - 4t - 5 = 0

→ Factorize it into two factors

∵ t² = t × t

∵ -5 = -5 ×  1

∵ -5t + 1t = -4t ⇒ the middle term

→ The factors are (t - 5) and (t + 1)

(t - 5)(t + 1) = 0

→ Equate each factor by 0 to find t

∵ t - 5 = 0

→ Add 5 to both sides

t = 5

∵ t + 1 = 0

→ Subtract 1 from both sides

∴ t = -1 ⇒ rejected because no negative value for the time

∵ t = 5

It will be 5 seconds before the ball hits the ground  

Which expression is equivalent to 2 (5) Superscript 4?
A. 2 times 5 times 4
B. 2 times 5 times 5 times 5 times 5
C. 2 times 4 times 4 times 4 times 4 times 4
D. 10 times 10 times 10 times 10

Answers

Answer:

\franc{\left(2ab^{^3}\right)^{^{-1}}}{20\cdot \left(2^{^{-1}}\cdot \:\:ba^5\right)^{^2}}\cdot \left(\frac{4ab^{^{-1}}}{5b}\right)^{^{-2}}

Step-by-step explanation:

Answer:

B. 2x5x5x5x5

Step-by-step explanation:

2(6)-8=10-5
how would 2(6)-8 equal 10-5?!

Answers

Answer:

It would not

Step-by-step explanation:

10-5 is basically 2-1 so if 2x6-8 (or 2(6)-8) equals 2-1 then it would. So you start with multiplying 6 and 2 and get 12. 12-8  equals to 4-3. I didn't find your answer but I did what I could.

jack has $7.55 of change in his pocket. if he has 4 more dimes than than nickels, and twice as many quarters as nickels, how many of each coin does jack have

Answers

Answer:

11 nickels, 15 dimes, 22 quarters

Step-by-step explanation:

number of nickels = x

number of dimes = x+4

number of quarters = 2x

- - - - - -

total of nickels = 5x cents

total of dimes = 10x + 40 cents

total of quarters = 50x cents

- - - - - -

755 = 5x + 10x + 40 + 50x

755 = 65x + 40

715 = 65x

x = 11

x+4 = 15

2x = 22

In a small library , there are 5 nonfiction books for every 9 fiction books There are 130 a . How many fiction books are there ?

Answers

Answer: 234

Step-by-step explanation:

If there are 130 nonfiction books, then there are 234 fiction books

IF yall report 1 more time istg

Whats 2/3 x 1/5

Answers

Answer:

2/15

Step-by-step explanation:

2/3*1/5=2/15

Answer:

0.133

Step-by-step explanation:

what does 3½-1⅞ equal???​

Answers

Answer: 1 5/8
Explanation:

HELP ASAPPPPP PLEASE

Answers

Answer:

13. -200, balance on car loans

14. 8, monthly payments

15. linear eqn, y=ax+b

16.values of y will decrease.(although i think the graph will remain linear)

17. as the monthly payment decrease so does the balance on car loan decrease.

Which angles are verticle angles?

Answers

this answer is c...
Have a nice day!!!

oh dear god i don't even know what to do with this problem, please help me

i'll give the big brain or whatever the reward is on this site--

i just don't get it

if y'all could also help answer my other question that would be spiffy

Answers

Answer:

1, 2 5, 6 are true

Step-by-step explanation:

Match each statement with the right choice.
6 ( 5 + 8)
5 (10 + 3)
9 ( 2 + 4)
7 ( 3 + 6)

Answers

Answer:

Your answer is:

1) 6 ( 5 + 8 ) = 78

2) 5 ( 10 + 3 ) = 65

3) 9 ( 2 + 4 ) = 54

4) 7 ( 3 + 6 ) = 63

Step-by-step explanation:

Hope this helped : )

WHO CAN HELP ME ITS DUE IN 5 minutes!

A line passes through the point (-10, 2) and has a slope of 1/2
Write an equation in slope-intercept form for this line.

Answers

We have to find b first: 3 = -3/2(10)+b3 = -15+b18 = bNow right the equation, your slope will be the same one....Y = -3/2x + 18

More

Grant drove his car for 417 miles on 15 gallons of gas. How many miles per gallons does Grant's car get?

Answers

Answer:

27.8

Step-by-step explanation:

417 divided by 15 equals 27.8 miles per gallon

27.8 mpg

this question is very easy to tackle:

miles/ gallon

/ = per

so

417/ 15

27.8 gallons

hope this helps:)))))

Make a conjecture about the sum of primes based on the following pattern:
4 = 2 + 2
6 = 3 + 3
8 = 3 + 5
10 = 3 + 7
12 = 5 + 7
and so on.
The sum of primes is equal to an even number.
The sum of primes is equal to the multiple of the primes.
The sum of primes is equal to primes.
The sum of primes is between 4 and 12.

Answers

Answer:

the answer is "the sum of primes is equal to an even number"

Step-by-step explanation:

The sum of primes is equal to an even number. Then option A is correct.

What is a prime number?

Any natural number higher than 1 that is not the sum of two smaller natural numbers is referred to be a prime number.

Prime numbers = { 1 , 2 , 3 , 4 , 5 ..............}

The given pattern is,

4 = 2 + 2

6 = 3 + 3

8 = 3 + 5

10 = 3 + 7

12 = 5 + 7

In the given pattern we can see that the sum of all the prime numbers is an even number.

Hence, option A is correct.

To know more about prime numbers follow

https://brainly.com/question/145452

#SPJ2

The density of sugar is 1.6 g/cm3. What is the mass of a sugar cube
with a volume of 5.0 cm3?

Answers

Answer:

8.0 g

Step-by-step explanation:

you have a ratio of 1.6g : 1 cm^3.

x : 5.0?

1.6 * 5.0 = 8

If this is chemistry, you have 2 sig figs. Therefore your answer is 8.0 g

Determine the type of symmetry presented in the figure

Answers

i believe c (both line and rotational symmetry).

Given f(x) = -2x - 1, solve for x when f(x) = -7

Answers

-2(-7) - 1
14-1

ANSWER: 13

Easy 7th grade work sheet ! Please help , I’ll give brainliest (all answers)

Answers

1. +16
2. -11
3. -6
4. 9
5. 8
6. 5
7. Simply place dots on the numbers stated, which are 11, -5, and -8.
8. The absolute value of a non-zero number is positive because absolute value is a magnitude, and is either positive or zero. The absolute value of any non-zero number can be thought of as its distance from zero, which will always be positive.

Please mark as branliest if i helped!!:)

PLEASE HELP!!! QUICK!!!

Answers

Answer:

A B and D

Step-by-step explanation:

the number just has to be below 1/1

A B and D there u go

4(-2)(5)
What is the answer?

Answers

Answer:

-40

Step-by-step explanation:

Answer:

-40

-2 x 5=-10

You have the 4 and you need to multiply it by -10

-10 x 4 =-40

Plz answer I need help my teacher doesn't explain things good

Answers

270 is most probably the answer

If e || f and a || b, what is the value of y. *

Answers

Answer:

y = 90

Step-by-step explanation:

Since, e || f and a || b

Therefore, quadrilateral so formed is a rectangle.

Each angle of a rectangle is right angle.

[tex] \therefore \: y \degree = 90 \degree \\ \\ \huge \red{ \boxed{ \therefore \: y = 90}} \\ \\ [/tex]

Car Y travels 105 miles on 3 gallons of petrol. Car Z travels 80 miles on 9 litres of petrol.

Which car has better petrol consumption ( more miles per gallon)?

You may use the fact that 1 gallon =4.5 litres


Options are

A. None

B. Y

C. Z

Answers

Answer:

Car Z has better petrol consumption. Choice C. Z

Step-by-step explanation:

Petrol Consumption

Car Y travels 105 miles on 3 gallons of petrol. The average consumption is 105 / 3 = 35 miles/gallon

Car Z travels 80 miles on 9 litres of petrol. Since 1 gallon=4.5 litres, the consumption of car Z is 9/4.5= 2 gallons. The average consumption is 80/2 = 40 miles/gallon.

This means that car Z has better petrol consumption. Choice C. Z

If b = 3, then b ^-2 is equivalent to ... please help fast lol I’m in a test

Answers

Answer:1/9

Step-by-step explanation:

one angle of an isosceles triangle measure 140 degrees. which other angles could be in that isosceles triangle?

Answers

Answer:

20!

Step-by-step explanation:

Isosceles triangles have 2 angles are the same. Since we can't do 140, because interior angles of a triangle equal 180, then we need to subtract 140 from 180. 180-140=40. 40/2 because of 2 angles=20. 20 is the angle.

Answer:

20

Step-by-step explanation:

What is the equation of the line that passes through (4, -1) and (-2, 3)?

Answers

Answer:

y= - 4/6x+1.66

Step-by-step explanation:

To get the slope you subtract y2-y1 / x2-x1. This gives the slope. Then you need to get the y-intercept. This can be done by substituting the slope and the coordinates of a point (x, y) on the line in the slope-intercept formula and then solve for b.

What does “m” stand for in the slope formula?
A. y axis
B. y coordinated
C. slope
D x coordinated

Answers

c. slope is the answer
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