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3 years ago

I need help with 3 4 5

Mathematics

1 answer:

SCORPION-xisa [38]3 years ago

4 0

3 is 13
4 is 18
5 is 20

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I don't I understand the concept of the question..

umka2103 [35]

X% of y means x/100 times y

52% is bonus
17% is getaway weekend
52-17=35
find 35% of 92000=32200

32,200 people prefer the bonus over the getaway
C is answer

3 0

4 years ago

The base of a triangle is shrinking at a rate of 11 cm/s and the height of the triangle is increasing at a rate of 11 cm/s. Find

Mumz [18]

Answer:

the rate of changes of the area of the triangle

$\frac{dA}{dt} = -11 cm^2 /sec$

Step-by-step explanation:

<u>Explanation</u> :-

The area of triangle( A) = $\frac{1}{2} base X height$ ..........(1)

Let 'b' be the base and 'l' be the length of the triangle

The base of a triangle is shrinking( means decreasing) at a rate of 11 cm/s

that is $\frac{db}{dt} = -11cm/sec$

The height of a triangle is increasing at a rate of 11 cm/s

that is $\frac{dh}{dt} = 11cm/sec$

Given h= 10cm and b = 8cm

<u>The rate of change of triangle </u>

applying uv formula $\frac{d(uv)}{dx} = u( \frac{dv}{dx}) + v(\frac{du}{dx} )$

Differentiating equation (1) with respective to 't'

$\frac{dA}{dt} =\frac{1}{2} ( b(\frac{dh}{dt} )+h ( \frac{db}{dt}))$

substitute all values in above equation, we get

h= 10cm , b = 8cm , $\frac{db}{dt} = -11cm/sec$ and $\frac{dh}{dt} = 11cm/sec$

$\frac{dA}{dt} = 10 (-11) + 8(11 )$

After simplification , we get

$\frac{dA}{dt} =\frac{1}{2} (-110 +88) = -11 cm^2 /sec$

7 0

4 years ago

Read 2 more answers

Kristina walks 7 1/2 miles in 5 hours. At this rate, how many miles can Kristina walk in 9 hours

puteri [66]

Answer:

13.5

Step-by-step explanation:

7 1/2=7.5

7.5/5*9=13.5

4 0

3 years ago

A coin is tossed three times the probability of zero heads is 1/8 what is the probability that all three tosses result in the sa

Gnom [1K]

10 percent hope it helps

8 0

4 years ago

Which ordered pair is a solution of the inequality y > 13x + 3

solong [7]

Answer:

x<y-3/13

Step-by-step explanation:

Switch sides'

13x+3<y

Subtract 3 from both sides

13x+3-3<y-3

Simplify

13x<y-3

Divide both sides by 13

13x/13<y/13-3/13

Simplify

x<y-3/13

(13,3)

Hope this helped!!

8 0

3 years ago