MATHEMATICS HIGH SCHOOL

Solve the following systems of equations:
- 7x + y = 4
8x - 3y = 1
X=
y =

Answers

Answer 1
Answer:

Answer:

x=-1 y=-3

............
Answer 2
Answer:

Answer:

(−1,−3) or x=−1,y=−3

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

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$1.55
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Answers

$0.45 is 1/4 of the price when Ryan started driving

Which measures of central tendency would be affected if the outlier 11 was added to the following set 27,20,34,37,21,42,39

Answers

Answer:

Median will not be affected by the outlier.

Step-by-step explanation:

With the outlier, the mean will be dragged way down. The median will likely be about the same. Mean is non-resistant to outliers, median is resistant.

Hope this helps!

Three families each have three sons and no daughters. Assuming boy and girl babies are equally likely, what is the probability of this event?

Answers


I don't think it matters how many families are involved. 
You're talking nine live births, and the probability of a
male birth each time is 50% .

So the probability of nine males in nine births is

                 (1/2)^9  =  1/512  =  about 0.195 percent  (rounded)
three families with three children all boys 
parents-2
children-3
total-5 times 3= 15
then boys-3 times three=9

Answer: 9/12 
Percentage:75%

Evaluate 8P4 how can I evaluate this problem

Answers

Answer:

^8P_4=1680

Step-by-step explanation:

Given: ^8P_4

Formula:

^nP_r=(n!)/((n-r)!)

It is permutation formula which helps to find number of arrangement.

If we have three digits and to find how many different three digit number be form. We can find using permutation.

Using formula,

^nP_r=(n!)/((n-r)!)

^8P_4=(8!)/((8-4)!)

^8P_4=(8!)/(4!)

^8P_4=(8* 7* 6* 5* 4!)/(4!)

Cancel 4! from top and bottom

^8P_4=8* 7* 6* 5

^8P_4=1680

Hence, The value of ^8P_4 is 1680

The required, permutation 8P4 is equal to 1,680.

"P" stands for permutation, which represents the number of ways to arrange objects in a specific order. The formula for permutations is:

nPr = n! / (n - r)!

Using the formula, we have:

8P4 = 8! / (8 - 4)!

= 8! / 4!

= (8 x 7 x 6 x 5 x 4!) / 4!

= (8 x 7 x 6 x 5)

= 1,680

Therefore, 8P4 is equal to 1,680.

Learn more about permutation here:

brainly.com/question/29990226

#SPJ6

What is 4(2x+3) simplified using distributive property

Answers

Answer:

  8x +12

Step-by-step explanation:

The outside factor is applied to each term inside parentheses:

  4(2x +3) = 4(2x) +4(3) = 8x +12

\huge\boxed{Hi\:there!}

To simplify this expression, we should use the Distributive Property.

It states that

a(b+c)=ab+ac

Let's use it:

4(2x+3)

8x+12

That's the answer.

\huge\boxed{\boxed{\boxed{Hope\:it\:helps!}}}

\huge\bold{Good\:luck!}

\huge\mathfrak{LoveLastsAllEternity}

Express the unit vector along the r axis in Cartesian coordinates, i = (1,0,0) as a linear superposition of the three vectors ū1 = (0.65, -0.99, -0.15), 72 = (-0.93, 0.74,-0.11), Ūz = (-0.50, -0.94, 0.39);

Answers

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