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3 years ago

In which equation x is = to 180 (A) x/49=7 (B) x/12-7 =13 (C) x/3-15=45

Mathematics

1 answer:

topjm [15]3 years ago

7 0

The answers is C. because when you do 180/3-15 you get 45 as the answer.

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It is estimated that 30% of households own a riding lawn mower. A sample of 17 households is studied. What is the standard devia

alina1380 [7]

Answer:

1.89 is the standard deviation of households who own a riding mower

Step-by-step explanation:

Let the random variable X denote the number of households owning a riding lawn mower. From the given information, X will be a Binomial random variable with parameters; n = 17 and p = 30% = 0.3

The standard deviation of X;

$\sqrt{n*p*(1-p)}$

$\sqrt{17*0.3*(1-0.3)} =1.89$

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3 years ago

Really need help, 20 points!

babymother [125]

I'm sorry ninth grade slow learner

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3 years ago

Differentiate the following function. y=x(x^2+5)^2

dalvyx [7]

First, expand to make it easier
y=x(x^2+5)(x^2+5)
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differentiation
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3 years ago

What is the midpoint

antoniya [11.8K]

Answer:

(0.5, -0.5)

Step-by-step explanation:

We are given a line segment on the graph with two known points (ending points) and we are to find its mid point.

We know the formula for the mid point:

$Midpoint = ( \frac {x_1 + x_2} {2} ,\frac {y_1 + y_2} {2} )$

Substituting the coordinates of the given points in the above formula:

Mid point = $(\frac {5 + (-4) } {2} , \frac { 6 + (-7)} {2} )$ = (0.5, -0.5)

8 0

3 years ago

Read 2 more answers

8 cm 10 cm 3 cm What is the volume of the right rectangular prism?

kati45 [8]

Answer:

240 cubic centimetres

Step-by-step explanation:

volume of the right rectangular prism

$= 8 \times 10 \times 3 \\ = 240 \: {cm}^{3}$

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3 years ago