3 years ago

Find a ⋅ b.

Mathematics

1 answer:

sashaice [31]3 years ago

4 0

Answer:

Step-by-step explanation:

a.b=5(4)+2(5)=20+10=30

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A company buys printer paper in a box which contains 8 packages. If each package of paper costs 3 dollar, how much does a box of

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3 years ago

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What is the probability you will roll a number less than 5 on a 6-sided die? show your work

ankoles [38]

Answer:

2/3 chance

Step-by-step explanation:

You want to find numbers less than 5, so there are 4 numbers you can use. 4 out of 6 numbers possible is 4/6, or 2/3.

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Rewrite the following equation into the slope-intercept form y=mx+b. y- 5 = -3(x - 12)

Norma-Jean [14]

Answer:

y = -3x + 41

Step-by-step explanation:

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I hope this helped!

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Ostrovityanka [42]

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3 years ago

Work out the area of the trapezium ABDE. B 9 cm 6 cm 8 cm →D E

Evgen [1.6K]

Answer:

Area of the trapezium ABDE = 30 cm²

Step-by-step explanation:

Area of a trapezium = $\frac{1}{2}(b_1+b_2)h$

Here, $b_1$ and $b_2$ are the parallel sides of the trapezium

h = Distance between the parallel sides

From the picture attached,

ΔCAE and ΔCBD are the similar triangles.

So by the property of similarity their sides will be proportional.

$\frac{AE}{BD}= \frac{CE}{CD}$

$\frac{9}{6}=\frac{CE}{8}$

CE = $\frac{9\times 8}{6}$

CE = 12 cm

Therefore, DE = CE - CD

DE = 12 - 8 = 4 cm

Now area of trapezium ABDE = $\frac{1}{2}(AE+BD)(DE)$

= $\frac{1}{2}(6+9)4$

= 30 cm²

Therefore, area of the trapezium ABDE = 30 cm²

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2 years ago