All categories

3 years ago

Please Guys can you help me

Mathematics

1 answer:

ExtremeBDS [4]3 years ago

4 0

Answer:

how many more" indicates that you are finding the difference. So if you subtract the smaller value from the larger value, you will find the difference, or how many more one quantity has than another. In math "more" means a higher amount of something than something or someone else.

Step-by-step explanation:

You might be interested in

What is 30 less than 0

PilotLPTM [1.2K]

Answer: -30

Step-by-step explanation:

8 0

3 years ago

You are trying to estimate the average amount a family spends on food during a year. In the past the standard deviation of the a

timama [110]

Answer:

the number of families needed for the survey is 2,157

Step-by-step explanation:

The computation of the number of families needed for the survey is shown below:

Given that

The Standard deviation is $900

Service level = 99%

z value at 99% = 2.58

Expenditures = $50

Based on the above information

The number of families needed for the survey is

$n = (\frac{zs}{E})^2\\\\= (\frac{2.58\times 900}{50})^2$

= 2,157

Hence, the number of families needed for the survey is 2,157

8 0

3 years ago

What is z2+z+4z3+4z2?

Sergeeva-Olga [200]

4z^3 + 5z^2 + z
Well that would be it... not much can be done considering the exponents of the variable :)

7 0

3 years ago

Read 2 more answers

Give your answer in its simplest form.

andrew-mc [135]

Answer:

Is the question to develop the equation for the straight line shown?

If so, y = (3/4)x + b

Step-by-step explanation:

Look for an equation with the form y = mx + b, where m is the slope and b is the y-intercept (the value of y when x = 0).

Calculate Slope using the Rise/Run.

Pick any two points. I chose (-4,0) and (4,6).

Going from left to right:

Rise = (6 - 0) = 6

Run = (4 - (-4)) = 8

Slope is Rise/Run, 6/8 or 3/4

So we have: y = (3/4)x + b

We can see that the y-intercept, b, is 3 (the value of y when x = 0).

The full equation becomes : y = (3/4)x + 3

3 0

3 years ago

Which equation represents a parabola that has a focus of (0 0) and a directrix of y = 2

mel-nik [20]

ANSWER

$x ^{2} = - 4(y - 1).$

EXPLANATION

Since the parabola has the (0, 0) and the directrix at y=2.

The equation is of the form

${(x - h)}^{2} = - 4p(y - k)$

where (h,k) is the vertex.

The vertex is half way between the directrix and the focus.

The vertex will be at (0,1)

and is the distance from the vertex to the focus which is 1.

${(x - 0)}^{2} = - 4(1)(y - 1)$

$x ^{2} = - 4(y - 1)$

7 0

3 years ago