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3 years ago

PLEASE HELP

Mathematics

2 answers:

Anna11 [10]3 years ago

7 0

Answer:

Step-by-step explanation:

sergejj [24]3 years ago

3 0

First, we find x using the given equation:
x = 4 / sin(53)
x = 5

We also know that:
Cos(∅) = base / hypotenuse
Therefore,
cos(53°) = y / 5

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suppose you choose a marble from a bag containing 3 red marbles, 3 white marbles, and 5 blue marbles. You return the first marbl

Marta_Voda [28]

Answer:

15/121 is the answer.

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3 years ago

Im bored in this quarentine and have a lot of work to catch up on. One of my math problems is "How much water should be added to

Kazeer [188]

Answer:

20/3 ounces of water is added.

Step-by-step explanation:

how many ounces of pure water should be added to 20 ounces of 40% solution of muriatic acid to obtain a 30% solution of muriatic acid?

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The acid is 40% of 20 ounces = 8 ounces.

0.4*20 = 8

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That same 8 ounces is to be 30%. The water will be the other 70%.

8/30 = x/100

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3 years ago

What fraction is equivalent to 1/8??

ASHA 777 [7]

Answer:

2/16

5/40

Step-by-step explanation:

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3 years ago

Transform the given quadratic function into vertex form f(x) = quadratic function into vertex form f(x) = quadratic function int

melisa1 [442]

Answer:

Vertex form: $f(x) =(x +\frac{7}{2})^2 -\frac{53}{4}$

The vertex is $(-\frac{7}{2},-\frac{53}{4})$

Step-by-step explanation:

For a general quadratic function the form is:

$ax ^ 2 + bx + c$

For the function

$f(x) = x ^ 2+ 7x -1$

The values of the coefficients for the function are the following: $a = 1$ , $b =7$ , $c = -1$

Take the value of b and divide it by 2. Then, the result obtained squares it.

$\frac{b}{2}= \frac{7}{2}$

$(\frac{b}{2})^2=(\frac{7}{2})^2=\frac{49}{4}$

Add and subtract $\frac{49}{4}$

$f(x) = (x ^ 2 +7x +\frac{49}{4}) -\frac{49}{4}- 1$

Write the expression of the form

$f(x) = (x+\frac{b}{2})^2 +k$

$f(x) =(x +\frac{7}{2})^2 -\frac{53}{4}$

The vertex is $(-\frac{7}{2},-\frac{53}{4})$

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3 years ago

92, 63, 22, 80, 63, 71, 44, 35 <br> Mean:? Median:? Mode:? Range:?

Nutka1998 [239]

Answer:

−

Step-by-step explanation:

subtract and add

4 0

1 year ago

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PLEASE HELP