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3 years ago

What does 18/7 = i neeeed help again

Mathematics

1 answer:

zepelin [54]3 years ago

8 0

Answer:

2.571428571 is the answer

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What is the median of this data set 22,37,49,15,72

GenaCL600 [577]

median is the middle of the data , so put the data in order from smallest to largest

15,22,37,49,72

The middle is 37

Median: 37

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3 years ago

Read 2 more answers

Drag the tiles to the correct boxes to complete the pairs.

Degger [83]

Answer:

1 = B

2 = A

3 = C

4 = D

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

If (5x− 4)(3x+ 7) = 15x²-ax-b,then find the value of a and b

Mkey [24]

Answer:

$a=-23\\\\b=28$

Step-by-step explanation:

Let's start by using distributive multiplication:

$(a\pm b)(c\pm d)=ac\pm ad \pm bc \pm bd$

So:

$(5x-4)(3x+7)=15x^2+35x-12x-28\\\\$

Grouping like terms:

$15x^2 +(35x-12x)-28\\\\15x^2+23x-28$

Now, $15x^2+23x-28$ is equal to:

$15x^2-ax-b$

In this sense:

$15x^2+23x-28=15x^2-ax-b$

In order to satisfied the equality:

$23x=-ax\hspace{10}(1)\\\\and\\\\-28=-b\hspace{10}(2)$

Hence, from (1), let's solve for a:

$23x=-ax\\\\-a=\frac{23x}{x} \\\\-a=23\\\\a=-23$

And from (2), let's solve for b:

$-28=-b\\\\b=28$

Let's verify the result evaluating the values of a and b into the original equation:

$(5x-4)(3x+7)=15x^2+23x-28=15x^2 -ax -b\\\\(5x-4)(3x+7)=15x^2+23x-28=15x^2 -(-23)x -(28)\\\\(5x-4)(3x+7)=15x^2+23x-28=15x^2 +23x -28$

As you can see, the values satisfy the equation, therefore, we can conclude they are correct.

3 0

3 years ago

Discuss how the hot-hand theory relates to the accuracy of a professional basketball player. State whether you agree or disagree

m_a_m_a [10]

Talk about the hot hand theory relates to basketball state.

6 0

3 years ago

Company A makes three different group of products, There are liquid products, solid products, and gas products. The ratio of liq

wel

Answer: Total products = 108

Step-by-step explanation: Ratio of solid to liquid products is 3:4 and there are 36 solids, so:

$\frac{3}{4} = \frac{Pl}{36}$

$Pl = \frac{36.3}{4}$

Pl = 27

Ratio of solid to gas is 4:5:

$\frac{4}{5}=\frac{36}{Pg}$

$Pg=\frac{36.5}{4}$

Pg = 45

Total products is the sum of all products:

P = Ps + Pl + Pg

P = 36 + 27 + 45

P = 108

There are a total of 108 products.

3 0

3 years ago