3 years ago

Margie couculated she would spend $175on school supply’s this year. She actually spent $96.50. What was margies percent of error

Mathematics

1 answer:

Tems11 [23]3 years ago

3 0

Answer:

Prob 150

Step-by-step explanation:

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Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 s?

QveST [7]

A. 100/20

The distance in meters should be divided by the time in seconds to get the value of the distance in meters travelled in one second.

8 0

3 years ago

Factor out this expression: 4x² - 9y2

Marta_Voda [28]

Answer:

(2x+3y)(2x-3y)

Step-by-step explanation:

a² - b² = (a + b)(a - b)

4x² - 9y²

= (2x)² - (3y)²

= (2x + 3y)(2x - 3y)

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3 years ago

Write the expression using the distributive property to find the product of

adoni [48]

One example could be, 2 • (9x + 6y)

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3 years ago

You want to estimate the number of students in your school who support extra funding for the history club. You survey every nint

Lyrx [107]

Answer:

unbiased

Step-by-step explanation:

it would be biased if you lets say survey the history club kids

4 0

3 years ago

∆ABC m∠B = 90° AB = 4 BC = 3<br> Find AC

lutik1710 [3]

Step-by-step explanation:

In ∆ABC, m∠B = 90°

Therefore ∆ABC is a right angled triangle with sides AB = 4 & BC = 3. AC is the hypotenuse.

Hence, by Pythagoras theorem:

$AC^2 = AB^2 +BC^2 \\ \\ \therefore \: AC = \sqrt{AB^2 +BC^2 } \\ = \sqrt{ {4}^{2} + {3}^{2} } \\ = \sqrt{16 + 9} \\ = \sqrt{25} \\ = 5 \\ \\ \huge \red{ \boxed{ \therefore \: AC = 5 \: units}}$

8 0

3 years ago