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ivanzaharov [21]

3 years ago

6

a badly weighed 7.25 lbs at birth at the end of 8 months the baby weighted 2\1/2 time it birth weight how many pounds did the ba

by weigh at the end if 8 months

1 answer:

sashaice [31]3 years ago

8 0

Answer:rkrllr

Step-by-step explanation:

Jdejkeke

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Algebra 2 | Drag the tiles to the correct boxes to complete the pair match each solution with its solution set

inn [45]

Answer:

256= 4 power 4 and 125 = 5 power 3

6 0

3 years ago

Solve 2x 2 + 8x - 12 = 0 by completing the square. What are the solutions?

oee [108]

I attached a picture of how I worked out the answer

5 0

3 years ago

у X -7 -5 -5 -4 -3 -2 ברן 4 LO- To 2 -3 -6 -7 In this graph, the v-intercept of the line is 1. The equation of the line is v=

GREYUIT [131]

Answer:

The y intercepts is -2

y = 1x-2

Step-by-step explanation:

The y intercept is where it crosses the y axis

The y intercepts is -2

We need to determine the slope, by using to points on the line

(0,-2) and (2,0)

m = (y2-y1)/(x2-x1)

= (0 --2)/(2-0)

= (0+2)/(2-0)

= 2/2

= 1

The equation for the line is

y = mx+b where m is the slope and b is the y intercept

y = 1x-2

5 0

3 years ago

Given the sample 4, −2, −6, 19, 6, add one more sample value that will neither change the mean nor the variance. Round to two de

DedPeter [7]

Answer:

Cannot create sample

Step-by-step explanation:

We are given the following in the question:

4, -2, -6, 19, 6

Formula:

$\text{Variance} = \displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{21}{5} = 4.2$

Sum of squares of differences = 0.04 + 38.44 + 104.04 + 219.04 + 3.24 = 364.8

$s^2 = \dfrac{364.8}{4}} = 91.2$

If we add an observation equal to the mean of given sample, then the mean and of new sample will not change.

New sample:

4, -2, -6, 19, 6, 4.2

$Mean =\displaystyle\frac{25.2}{6} = 4.2$

Sum of squares of differences = 0.04 + 38.44 + 104.04 + 219.04 + 3.24 + 0 = 364.8

$s^2 = \dfrac{364.8}{5}} = 72.96$

Thus, the variance of new sample changes.

Thus, it is not possible to create a sample.

5 0

3 years ago

111. The averag If 15 workers can build a wall in 90 hours. How many workers will be required to do the same work in 30 hours?

Marizza181 [45]

Answer:

45 workers.

Step-by-step explanation

In 90 hours 15 workers will build one wall

So in 90 hours it w1ll take 1 worker to build 1/15 of a wall.

In 30 hours he would build 1/45 of a wall.

So to build the whole wall in 30 days it will take 45 workers.

5 0

1 year ago

Read 2 more answers