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ANTONII [103]
3 years ago
10

5th grade math. correct answer will be marked brainliest

Mathematics
2 answers:
Otrada [13]3 years ago
8 0

Answer:

Six times

Step-by-step explanation:

Because it is Six times six over seven, therefore there are "6 shaded models"

juin [17]3 years ago
3 0
X 6

i’m pretty sure this is right
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andrey2020 [161]
Octagon is 309.02cm²
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7 0
2 years ago
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PLEASE ANSWERING THIS QUESTION!!!
Anarel [89]

Answer:

104.8cm³(1 decimal place)

Step-by-step explanation:

Volume of a cone is given by the formula

V=1/3πr²h

we are given a radius of 5 and a height of 4 so we will just substitute for the values and we will give our pie as 22/7

V=1/3× 22/7×5²×4

V=1/3 × 22/7 ×25 ×4

V=2200/21

V=104.76190476

V=104.8cm³(1decimal place)

pls if you like this answer you can appreciate it by marking it as brainliest

4 0
8 months ago
Write the slope-intercept form of the equation of the line through the given points through {-3,1} and (-5,5)
Zigmanuir [339]

Slope = -2/1

work is provided in the image attached.

3 0
3 years ago
Please help ...........​
sammy [17]

Answer:

Angle B = 80°

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7 0
2 years ago
Element X decays radioactively with a half life of 12 minutes. If there are 200 grams of Element X, how long, to the nearest ten
Semenov [28]

Answer:

It would take 24 minutes for the element to decay to 50 grams

Step-by-step explanation:

The equation for the amount of the element present, after t minutes, is:

Q(t) = Q(0)e^{-rt}

In which Q(X) decays radioactively with a half life of 12 minutes.(0) is the initial amount and r is the rate it decreases.

Half life of 12 minutes

This means that Q(12) = 0.5Q(0)

So

Q(t) = Q(0)e^{-rt}

0.5Q(0) = Q(0)e^{-12r}

e^{-12r} = 0.5

\ln{e^{-12r}} = \ln{0.5}

-12r = \ln{0.5}

12r = -\ln{0.5}

r = -\frac{\ln{0.5}}{12}

r = 0.05776

If there are 200 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to decay to 50 grams?

This is t when Q(t) = 50. Q(0) = 200.

Q(t) = Q(0)e^{-rt}

50 = 200e^{-0.05776t}

e^{-0.05776t} = 0.25

\ln{e^{-0.05776t}} = \ln{0.25}

-0.05776t = \ln{0.25}

0.05776t = -\ln{0.25}

t = -\frac{\ln{0.25}}{0.05776}

t = 24

It would take 24 minutes for the element to decay to 50 grams

6 0
3 years ago
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