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3 years ago

Place elementary school is raising money. they raise $90 a week. how long will it take to raise $900?

Mathematics

1 answer:

Korolek [52]3 years ago

7 0

Answer:10 weeks

Step-by-step explanation:

900 is goal

900/90 is 10 or 10 weeks

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Find the exact solution of the system of equations of x^2+y^2-4x-6y+4=0 and x^2-4x-3y+4=0

gavmur [86]

We can readily know the x^2-4x+4=3y then use it to replace the same function in the first equation which refers to the 3y+y^2-6y=0
y^2-3y=0
y(y-3)=0
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4 years ago

Which expression is equivalent to

Varvara68 [4.7K]

Answer:

the given expression is equivalent to

Step-by-step explanation:

$\frac{ \sqrt[4]{200} }{2}$

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2 years ago

An airline promotion to business travelers is based on the assumption that two-thirds of business travelers use a laptop compute

skad [1K]

Answer:

The null hypothesis is $H_o : p = 0.67$

The alternative hypothesis is $H_a : p \ne 0.67$

The sample proportion is $\^ p = 0.65$

Step-by-step explanation:

From the question we are told that

The sample size is n = 546

The number of people that use a laptop overnight is $k = 355$

The population proportion is $p = \frac{2}{3} = 0.67$

Generally

The null hypothesis is $H_o : p = 0.67$

The alternative hypothesis is $H_a : p \ne 0.67$

Gnerally the sample proportion is mathematically represented as

$\^ p = \frac{ k}{n}$

=> $\^ p = \frac{ 355}{546}$

=> $\^ p = 0.65$

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4 years ago

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joja [24]

Answer:

82°

Step-by-step explanation:

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3 years ago

What is the area of the circle if XY = 10 ft?

Zigmanuir [339]

The area of a circle is pi x radius^2
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