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1 year ago

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4) Given the incomplete equations x + y = ??and x - y = ?? Complete both equationsso that the ordered pair solution of the syste

m has an x-coordinate of 0.x + y =x + y =

1 answer:

Anestetic [448]1 year ago

3 0

To satisfy the requirement the equations can be:

x+y= 0

x-y= 0

the solution of this system of equations is the pair (0,0) which has an x-coordinate of 0.

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A 14-foot ladder is leaning against a building as shown. It touches a point 11 feet up on a building. How far away from the base

Luden [163]

We can assume that the point the ladder creates with the ground and building is a triangle. You can use the Pythagorean theorem to solve this.

A^2 + B^2 = C^2

The ladder is C, and the building can act as A or B, so for the purpose of this explanation, I’ll make it A.

11^2 + B^2 = 14^2
Figure out the squares

121 + B^2 = 196
Subtract 121 from both sides

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3 years ago

PLz answer this Question

Lelu [443]

-3,6 i'm pretty sure

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3 years ago

Read 2 more answers

Calculate the range, population variance, and population standard deviation for the following data set. If necessary, round to o

Roman55 [17]

Answer:

$Range = 11-2=9$

$\mu = \frac{2+3+4+5+6+7+8+9+10+11}{10}=6.5$

$\sigma^2 =8.25 \approx 8.3$

$\sigma = \sqrt{8.25}= 2.87 \approx 2.9$

Step-by-step explanation:

Assuming this question: "Calculate the range, population variance, and population standard deviation for the following data set. If necessary, round to one more decimal place than the largest number of decimal places given in the data. 2,3,4,5,6,7,8,9,10,11 "

Solution to the problem

The range is defined as $Range = Max -Min$ and if we replace we got:

$Range = 11-2=9$

Now we can calculate the population mean with this formula:

$\mu =\frac{\sum_{i=1}^n X_i}{N}$

And if we replace we got:

$\mu = \frac{2+3+4+5+6+7+8+9+10+11}{10}=6.5$

The population variance is given by:

$\sigma^2 = \frac{\sum_{i=1}^n (X_i -\mu)^2}{N}$

And after replace we got: $\sigma^2 =8.25 \approx 8.3$

And the population standard deviation would be just the square root of the variance and we got:

$\sigma = \sqrt{8.25}= 2.87 \approx 2.9$

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4 years ago

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finlep [7]

U want me to help u with all

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4 years ago

Simplify the expression -3(-4y+3) -(3y-4)-4y+7 H E L P

7nadin3 [17]

12y-9-(3y-4)-4y+7 =

(9y-5)-4y+7 =

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4 years ago