1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Juliette [100K]
3 years ago
7

1 Enter the correct answer in the box. Simplify the expression (62,4.

Mathematics
1 answer:
adelina 88 [10]3 years ago
4 0

Answer:

248

Step-by-step explanation:

(62)4

= 62 x 4

= 248

You might be interested in
An olympic sprinter can run 56 yards in 8 seconds. At the same rate, how long (in seconds) would it take the sprinter to run 81
aniked [119]

Answer:

20,365.7 seconds

Step-by-step explanation:

First, we need to know how to convert yards to miles, as the question is in miles. We know that 1 mile is equivalent to 1760 yards. So we have:

1 mi = 1760 yards

If we multiply both sides by 81:

81 mi = 142,560‬ yards

And we know that the sprinter needs 8 second to run 56 yards:

8 s = 56 yards

If we divide both sides by 56 we get the time he needs for 1 yard:

8/56 s = 56/56 yards

1/7 s = 1 yard

So, takes him 1/7 seconds to run one yard. At this rate he runs 142,560 yards in:

(1/7) * 142,560 = 20,365.7

So, he needs 20,365.7 seconds to run 81 miles (142,560 yards)

6 0
3 years ago
The length of a 200 square foot rectangular vegetable garden is 4feet less than twice the width. Find the length and width of th
inna [77]

Answer:

Length = 18.099 ft

Width = 11.049 ft

Step-by-step explanation:

let the length of the field be x ft

and the width be y ft

as per the condition given in problem

x=2y-4   -----------(A)

Also the area is given as 200 sqft

Hence

xy=200

Hence from A we get

y(2y-4)=200

taking 2 as GCF out

2y(y-2)=200

Dividing both sides by 2 we get

y(y-2)=100

y^2-2y=100

subtracting 100 from both sides

y^2-2y-100=0

Now we solve the above equation with the help of Quadratic formula which is given in the image attached with this for any equation in form

ax^2+bx+c=0

Here in our case

a=1

b=-1

c=-100

Putting those values in the formula and solving them for y

y=\frac{-(-2)+\sqrt{(-2)^2-4 \times (-1) \times 100}}{2 \time 1}

y=\frac{-(-2)-\sqrt{(-2)^2-4 \times (-1) \times 100}}{2 \time 1}

Solving first

y=\frac{2+\sqrt{4+400}{2}

y=\frac{2+\sqrt{404}{2}

y=\frac{2+20.099}{2}

y=\frac{22.099}{2}

y=11.049

Solving second one

y=\frac{-(-2)-\sqrt{(-2)^2-4 \times (-1) \times 100}}{2 \time 1}

y=\frac{2-\sqrt{4+400}{2}

y=\frac{2-\sqrt{404}{2}

y=\frac{2-20.099}{2}

y=\frac{-18.99}{2}

y=-9.045

Which is wrong as the width can not be in negative

Our width of the field is

y=11.099

Hence the length will be

x=2y-4

x=2(11.049)-4

x=22.099-4

x=18.099

Hence our length x and width y :

Length = 18.099 ft

Width = 11.049 ft

4 0
3 years ago
What percent of 180 is 45? A. 4.5% B. 18% C. 22% D. 25%
Ber [7]

Answer:

D. 25%

Step-by-step explanation:

45/180=0.25

0.25 into a percent is 25%

6 0
3 years ago
Read 2 more answers
Which is not an equation of the line going through (3,-6) and (1, 2)?
Olegator [25]

Answer:

○ \displaystyle y - 1 = -4(x - 2)

Step-by-step explanation:

When you plug these coordinates into this equation, they will be confirmed as <em>false</em>.

I am joyous to assist you anytime.

3 0
3 years ago
What’s the equation for mrs Mersons car
gregori [183]

Answer:

I'm not sure what your talking about? Is there a math equation? I need more information to answer this question.

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Two numbers multiply together to make 8 but add together to make 6. What are the two numbers?
    6·1 answer
  • Which of the following is a monomial ? 9/x 11x2 20x9-7x 20x -14
    7·1 answer
  • Filbert makes $14 per hour. If he makes time and a half for overtime, how much will he make for working 63 hours?
    6·1 answer
  • 15.
    7·2 answers
  • Gordon types 3,572 words in 47 minutes. Find the unit rate.
    15·2 answers
  • What is the slope of the line with equation 10x + 15y = -90?
    15·1 answer
  • Which table represents a linear function?
    13·1 answer
  • Please help asap!!!!!!
    12·2 answers
  • What is the equation of the line in slope-intercept form? <br>​
    11·2 answers
  • Helllllllllllllllllllloooooo
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!