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3 years ago

The ratio of shirts to pants is 3 to 2. if there are 6 shirts, how many pants are there?

Mathematics

1 answer:

marshall27 [118]3 years ago

3 0

4 pants.

I hope this helps, please Brainliest me, and have a great day! =D

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Let f(x) = 5x +7 and g(x) = x-1 . Find f(g(x))

Bogdan [553]

Answer:

f(g(x))=5×(x-1)+7=5x-2

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4 years ago

Which mathematical term describes both 19x and 4x in the expression 19x+4x?

Phoenix [80]

Answer:

The answers is coefficient

Step-by-step explanation:

they both have a variable attached which makes them both coefficients

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3 years ago

Factorise by grouping: x² - 5x + 2x - 10

IrinaK [193]

Answer:

(x + 2)(x - 5)

Step-by-step explanation:

Here are the steps:

$x^2-5x+2x-10\\(x^2-5x)+(2x-10)\\x(x-5) + 2(x-5)\\(x + 2)(x-5)$

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3 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

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

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

=> $\^ p = 0.65$

4 0

3 years ago

Solve the equation 4z^2 + 4z -9 = 0 by completeing the square<br><br><br>

nasty-shy [4]

Answer:

z=(sqrt(10)-1)/2 or z= -(sqrt(10)-1)//2

Step-by-step explanation:

To complete the square, the last term has to be 1. So adding 10 to both sides, we get:

4z^2+4z+1 = 10

Since 4z^2+4z+1=(2z+1)^2,

(2z+1)^2 = 10.

Taking the square root of both sides, we get

2z+1=sqrt(10) or 2z+1=-sqrt(10)

So z=(sqrt(10)-1)/2 or z= -(sqrt(10)-1)//2

3 0

3 years ago