3 years ago

Sylvie made the solid figures shown using unit cubes. Which statement about these models is true? Model A Model B

Mathematics

1 answer:

PtichkaEL [24]3 years ago

7 0

The answer to the question is B.

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Alaska has 4.91851852 thousand miles more than Florida coastline

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A triangle PQR is right angled at R, with PQ=80cm and R=60cm. find QR? pythagorus theorem

algol13

Answer:

Solution given:

A triangle PQR is right angled at R, with hypotenuse{h}PQ=80cm

and

base[b]PR=60cm.

perpendicular [P]= QR

by using Pythagoras law

h²=p²+b²

80²=QR²+60²

QR²=80²-60²

QR= $\sqrt{2800}$

QR=20 $\sqrt{7}$ =52.9=53cm

QR=53cm.

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3 years ago

Find the probability that a point chosen at random will lie in the shaded region.

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Step-by-step explanation:

In the 1st question

Total boxes = 6

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Probability = 2/6 = 1/3

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3 years ago

Subtract 5b − 3c from −8a − 2b − 10c

erik [133]

Answer:

-8a - 7b - 7c

Step-by-step explanation:

-8a - 2b - 10c - (5b - 3c)

Negate 5b and -3c

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Terrence finished a word search in 3/4 the time it took frank. charlotte finished the word search in 2/3 the time it took terren

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Answer:

Charlotte-16

Step-by-step explanation:

In order to calculate the time that Charlotte took we just first have to calculate the time that Terrence took to finish the word search, that is done by multiplying the 32 minutes that Frank took by the three quartes that it took terrence:

$Time=(\frac{3}{4}) (32)\\Time=(\frac{96}{4})\\Time=24$

So now we know that It took terrence 24 minutes, and that Charlotte took two thirds of that time so we now just multiply that:

$Time=(\frac{2}{3}) (24)\\Time=(\frac{48}{3})\\Time=16$

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