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
GREYUIT [131]
3 years ago
6

The 1 mile race is equal to how many feet

Mathematics
1 answer:
Elina [12.6K]3 years ago
8 0

Answer:

5280 ft

Step-by-step explanation:

1 mile = 5280 ft

You might be interested in
The face of the triangular concrete panel shown has an area of 22 square meters, and its base is 3 meters longer than twice its
Elodia [21]

Answer:

The length of the base is 11 meters.

Step-by-step explanation:

The diagram of the triangle is not shown; However, the given details are enough to solve this question.

Given

<em>Shape: Triangle</em>

<em>Represent the height with h and the base with b</em>

b = 3 + 2h

Area = 22

Required

Find the length of the base

The area of a triangle is calculated as thus;

Area = \frac{1}{2} * b * h

Substitute 22 for Area and 3 + 2h for b

The formula becomes

22 = \frac{1}{2} * (3 + 2h) * h

Multiply both sides by 2

2 * 22 = 2 * \frac{1}{2} * (3 + 2h) * h

44 = (3 + 2h) * h

Open the bracket

44 = 3 * h + 2h * h

44 = 3h + 2h^2

Subtract 44 from both sides

44 - 44 = 3h + 2h^2 - 44

0 = 3h + 2h^2 - 44

Rearrange

0 = 2h^2 +3h - 44

2h^2 +3h - 44 = 0

At this point, we have a quadratic equation; which is solved as follows:

2h^2 +3h - 44 = 0

2h^2 + 11h - 8h - 44 = 0

h(2h + 11) - 4(2h + 11) = 0

(h - 4)(2h + 11) = 0

Split the above

(h - 4) = 0\ or\ (2h + 11) = 0

h - 4 = 0\ or\ 2h + 11 = 0

Solve the above linear equations separately

h - 4 = 0

Add 4 to both sides

h - 4 + 4 = 0 + 4

h = 0 + 4

h = 4 ---- <em>First value of h</em>

2h + 11 = 0

Subtract 11 from both sides

2h + 11 - 11 = 0 - 11

2h  = 0 - 11

2h = -11

Divide both sides by 2

\frac{2h}{2} = -\frac{11}{2}

h = -\frac{11}{2}<em> ------ Second value of h</em>

Since height can be negative, we'll discard h = -\frac{11}{2}

Hence, the usable value of height is h = 4

Recall that b = 3 + 2h

Substitute 4 for h

b = 3 + 2(4)

b = 3 + 8

b = 11

Hence, the length of the base is 11 meters

3 0
3 years ago
What is the exponential growth formula?
maksim [4K]

Answer:

To calculate exponential growth, use the formula y(t) = a__ekt, where a is the value at the start, k is the rate of growth or decay, t is time and y(t) is the population's value at time t.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Solve -5w = -80 for w.<br><br> w =
Aleks [24]

Answer:

w=4

Step-by-step explanation:

-80/-5=4

6 0
3 years ago
Read 2 more answers
Cual es el resultado? 3x-2=
MrMuchimi
Reinforces 5tttxes el
7 0
2 years ago
Read 2 more answers
Please help, I'll mark Brainiest. It's 8th grade math
yawa3891 [41]

Answer:

(-5, 2)

Step-by-step explanation:

<u>plug x into the equation x - 5y = -15</u>

-5 - 5y = -15

add 5 to both sides: -5y = -10

divide by -5: y = 2

7 0
3 years ago
Read 2 more answers
Other questions:
  • Solve this equation for x. Round your answer to
    15·1 answer
  • In the diagram below, and are tangent to O. What is the measure of E?
    15·1 answer
  • Kevin wants to make a mixture that is 50% lemon juice and 50% lime juice. How much 100% lemon juice should he add to a juice mix
    5·1 answer
  • Match each description with its symbolic representation. 1. P (A) The probability that both events A and B do not occur together
    9·1 answer
  • A hotel offers teo activity packages. One costs $192 and includes 3h of horsebackriding and 2h of parasailing. The second costs
    8·1 answer
  • One fourth times one fourth
    10·2 answers
  • Simplify the following expression:<br><br> (3x + 6) - 4 + (3x + 6) - 4
    6·2 answers
  • Hey stars of the day i need help
    12·1 answer
  • 26. Which of the following DO NOT illustrates independent events?
    13·1 answer
  • A submarine is at the surface of the ocean, preparing to dive. It submerges and dives to - 993 feet. Then, it ascends 308 feet t
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!