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2 years ago

Lily ran 100 meters in 15 seconds. How long did she take to run 2 meters

Mathematics

2 answers:

denis23 [38]2 years ago

7 0

.15 seconds because I said

postnew [5]2 years ago

7 0

If Lily runs 100 meters in 15 seconds, then she runs 1 meter in 0.15 seconds. (Just dividing 15 by 100)

If she runs 1 meter in 0.15 seconds, then she’ll run 2 meters in 0.3 seconds (0.15 + 0.15)

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I really need help with this question! Please help me!!!

Dafna11 [192]

Answer:

42°

Step-by-step explanation:

AD bisects ∠CAB, which means it splits ∠CAB into two equal parts. ∠CAB equals 84°. 84° ÷ 2 = 42°.

7 0

2 years ago

If f(x) is a linear function, f(−2)=4, and f(1)=−1, find an equation for f(x)

juin [17]

Answer:

$y = -\frac{5}{3}x+\frac{2}{3}$

Step-by-step explanation:

Given

$f(-2) = 4$

$f(1) = -1$

Required

The equation of the function

The given parameters means that:

$(x_1,y_1) = (-2,4)$

$(x_2,y_2) = (1,-1)$

Calculate the slope (m)

$m = \frac{y_2 -y_1}{x_2 -x_1}$

$m = \frac{-1-4}{1--2}$

$m = \frac{-5}{3}$

The equation is then calculated using:

$y = m(x - x_1) + y_1$

This gives:

$y =\frac{-5}{3}(x--2)+4$

$y =\frac{-5}{3}(x+2)+4$

Open bracket

$y = -\frac{5}{3}x-\frac{10}{3}+4$

Take LCM

$y = -\frac{5}{3}x+\frac{-10+12}{3}$

$y = -\frac{5}{3}x+\frac{2}{3}$

6 0

2 years ago

Mr. James has cylindrical beakers that measure 4 inches in diameter and 9 inches high. What is the volume contained within the b

goblinko [34]

So 4 inches diameter result the radius is 4/2 = 2 inches

area of base = pir^2 = 3,14*2^2 = 3,14*4 = 12,56 inches squared

volume = area of base *height

V = 12,56 *9 = 113,04 so rounded 113,05 inches cubed

hope this will help you

3 0

2 years ago

Can you help me with this please cause I can't do math!

harina [27]

Answer:

Step-by-step explanation:

(3x-5)+(2x-1)+(x+1) = 6x-5 = 31

6x = 36

x = 6

4 0

2 years ago

Make x the subject of the formula<br> Y=3x+2

andrew-mc [135]

Answer:

(y-2)÷3=x

Step-by-step explanation:

y=3x+2

y-2=3x

(y-2)÷3=x

This answer could also be written as a fraction: y-2 over 3, equals x.

5 0

2 years ago