3 years ago

PLEASE HELP!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

Aleonysh [2.5K]3 years ago

6 0

(15 x 14 x 18) + (11 x 13 x 16)

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Use Special Triangle Shortcuts to find the values of x and y in the first figure. Explain how you determined the length of segme

ivann1987 [24]

Answer:

Solution given:

short cut to find x

Tan 30°=P/B

Tan30°=x/22√3

x=tan 30×22√3

x=22

and

for y

cos 30=B/H

cos30×y=22√3

y=22√3/cos30

y=44

7 0

3 years ago

Simplify the following expression.

expeople1 [14]

Answer: $3x^{2}-24x$

Step-by-step explanation:

1. To simplify the expression given in the problem, you must apply a property of exponents called Quotient of powers, which states that when you divide two powers that have the same base, you must subtract the exponents.

2. Keeping this property on mind you have, you can rewrite the expression as following and simplify:

$\frac{-12x^{4}}{-4x}+\frac{96x^{2}}{-4x}=3x^{2}-24x$

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3 years ago

The map below shows the path that Jin walked this morning. According to his pedometer, the total distance of this path was 2.3 k

max2010maxim [7]

Answer:

5 centimetres = 1 kilometre

Step-by-step explanation:

First add up the distances measured on the map.

1.1+4.8+2.2+3.4=11.5 cm

Based on this, since the number of cm is greater than the number of km, we can figure out that each cm should not be multiplied to get the km, so we can eliminate the first two answers.

Next write an equation to represent finding the scale

x=scale

11.5=2.3x

Now solve for the scale

11.5/2.3=2.3x/2.3

5=x

Therefore the scale is 5 centimetres = 1 kilometre

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3 years ago

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zhenek [66]

Answer: