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2 years ago

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Mathematics

1 answer:

Alla [95]2 years ago

5 0

Answer:

2x + 3y > 100

x + y = 40

Step-by-step explanation:

This is the answer because it shows the price of each and the combined products equaling more than 100 dollars, and the bottom one shows that the combined total of jewelry can not exceed 40 pieces.

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What equation results from completing the square and then factoring?

olya-2409 [2.1K]

Answer:

YOUR ANSWER IS C.(x-6)²=94

Step-by-step explanation:

(x-6)²=94
x²+36-12x=94
x²-12x=54

HENCE PROVED

8 0

3 years ago

Find the mean of the data summarized in the given frequency distribution. A company had 110 employees whose salaries are summari

mafiozo [28]

Answer:

$\bar X= \frac{1930055}{110}=17545.95$

Step-by-step explanation:

For this case we can construct the following table in order to find the mean for the grouped data:

Interval Frequency (fi) Midpoint (Xi) Xi *fi

5001-10000 27 7500.5 202513.5

10001-15000 23 12500.5 287511.5

15001-20000 12 17500.5 210006

20001-25000 18 22500.5 405009

25001-30000 30 27500.5 825015

Total 110 1930055

And the mean is calculated with the following formula:

$\bar X= \frac{\sum_{i=1}^n x_i f_i}{n}$

Where $n = \sum_{i=1}^n f_i = 110$

So then if we replace into the formula we got:

$\bar X= \frac{1930055}{110}=17545.95$

7 0

3 years ago

What are the coordinates the vertex for the quadratic function below? f(x)=-5(x-10)^2-8

goldenfox [79]

Answer:

D) (10,-8)

Step-by-step explanation:

The vertex form of the equation of a parabola is ...

f(x) = a(x -h)^2 +k . . . . . . for vertex (h, k) and scale factor "a"

Matching this pattern to the given equation, we see that ...

a = -5, h = 10, k = -8

so the vertex is (h, k) = (10, -8) . . . . . matches choice D

4 0

3 years ago

Simplify open parentheses x to the 2 fifths power close parentheses to the 5 sixths power.

tamaranim1 [39]

$\left(x^{ \frac{2}{5} } \right)^{ \frac{5}{6} }=x^{ \frac{2}{5}* \frac{5}{6} }=x^{ \frac{1}{3} }= \sqrt[3]{x}$

3 0

3 years ago

Read 2 more answers

Find the solution for quadratic x^2-7x+10=-2 leave your answers as fractions ( no decimals)

Zepler [3.9K]

Answer:

x=3 x=4

Step-by-step explanation:

add 2 to both sides

x^2-7x+12=0

(x-3)(x-4)=0

x=3 x=4

i just factored it out, there are more ways of doing it probably

4 0

2 years ago