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zlopas [31]
3 years ago
14

PLEASE HELP ME WITH THIS QUESTION!!! WHATS THE ANSWER?? I WILL GIVE YOU BRAINLIEST AND A THANKS!

Mathematics
2 answers:
Free_Kalibri [48]3 years ago
8 0

Answer:

B

Step-by-step explanation:

Scrat [10]3 years ago
3 0

Answer:

B. 50.2ft^2

Step-by-step explanation:

π r^2

=3.14×(8/2)^2

=3.14×16

=> 50.2 ft^2

hope it helps..

have a great day!!

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A girl wants to count the steps of a moving escalator which is going up. If she is going up on it, she counts 60 steps. If she i
Kaylis [27]
Let's V the speed of the girl in step
v the speed of the escalator in step
L the length between ground and floor.

V*60+v*60=L ==> V+v=L/60
V*90-v*90=L ==> V-v=L/90
2V=L(3+2)/180
==>V=5L/360
Time to climb (in step) with v=0 (escalator standing still)
V*t=L==> t=L/V=L/(L*5/360)=72

The girl will count 72 steps.


8 0
4 years ago
Read 2 more answers
Suppose a certain home improvement outlet knows that the monthly demand for framing studs is 2,300 when the price is $4.77 each
pogonyaev

Answer:

p + 0.0001q = 5

Step-by-step explanation:

Data provided in the question:

When Price, p₁ = $4.77 ; Demand, q₁ = 2,300

and,

When Price, p₂ = 3,300 ; Demand, q₂ = 3,300

considering the above as the points on the line,

now, the general equation for a line is given as:

\frac{q_1-q}{p_1-p}=\frac{q_2-q_1}{p_2-p_1}

on substituting the respective values, we get

\frac{2,300-q}{4.77-p}=\frac{3,300-2,300}{4.67-4.77}

or

\frac{2,300-q}{4.77-p}=\frac{1000}{-0.1}

or

2,300 - q = -10,000(4.77 - p)

or

⇒ 2,300 - q = -47700 + 10,000p

or

⇒ 10,000p + q = 2300 + 47700

or

⇒ 10,000p + q = 50000

or

⇒ p + 0.0001q = 5

8 0
3 years ago
Suppose the circumference of a circle is 2 pi what is the area?
irina1246 [14]
 <span>Circumference of a circle = 2 π r 

(where r is the radius) 

Area of a circle = π r^2 

(where r is the radius) 

you have to find the radius

C = 2π unit 
r = 1 unit 

Area = π square units 
</span>
4 0
3 years ago
Read 2 more answers
22. Francisco is three years more than twice Jenna's age. Harrison is two years less than three times Jenna's age.
Jet001 [13]

Answer:

An expression for Francisco's age in terms of a is (2a+3)

An expression for Harrison's age in terms of a is (3a-2)

An expression for the sum of all  three ages, in terms of a is (6a+1)

Step-by-step explanation:

Let

a -----> Jenna's age

b -----> Francisco's age

c -----> Harrison's age

we know that

Francisco's age is two times Jenna's age plus three years

b=2a+3 -----> equation A

Harrison's age is three times Jenna's age minus two years

c=3a-2 ----> equation B

The sum of all  three ages, in terms of a is

(a+b+c) -----> equation C

substitute equation A and equation B in equation C

a+(2a+3)+(3a-2)

Combine like terms

(a+2a+3a)+(3-2)

6a+1

therefore

An expression for Francisco's age in terms of a is (2a+3)

An expression for Harrison's age in terms of a is (3a-2)

An expression for the sum of all  three ages, in terms of a is (6a+1)

6 0
4 years ago
Can any one help me plz 27=9h
abruzzese [7]
H=3 because 27 divided by 9 is 3
5 0
3 years ago
Read 2 more answers
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