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Andrew [12]
3 years ago
10

Find x.______________a0

Mathematics
1 answer:
velikii [3]3 years ago
4 0

Answer:

x=4

Step-by-step explanation:

Before we find x, we need to set up this triangle a little more. We need to find the triangle's altitude before we can solve for x. We will use the heartbeat method to find the altitude.

Let altitude = y; solve for y:

\frac{2}{y}=\frac{y}{6}

y^2=12

y=\sqrt{12}

y=2\sqrt{3}

Now that we know the altitude, we can use the Pythagorean Theorem to find the hypotenuse (x).

a^2+b^2=c^2

2^2+(2\sqrt{3})^2=c^2

4+12=c^2

c^2=16

c=4

Since c and x are the same; c is just the hypotenuse in the Pythagorean Theorem.

x=4

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Answer:

23.125$

Step-by-step explanation:

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3 years ago
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Equivalent Fractions: Decide if the Fractions are Equivalent and tell what number was used to reduce them. If they are not, expl
Thepotemich [5.8K]

Answer:

are not equivalent

Step-by-step explanation:

20 isnt in the 3 times table so there is no way to simplify the franction into the other

simpilest form of 10/20 is 2/4

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3 years ago
A jar contains two blue and five green marbles. A marble is drawn at random and then replaced. A second marble drawn at random.
DerKrebs [107]

corrected question:A jar contains two blue and five green marbles. A marble is drawn at random and then replaced. A second marble drawn at random. For each of the following, find the probability that: a) both marbles are blue b) both marbles are the same color  c)the marbles are different in color

Answer:

Step-by-step explanation:

<u><em>The probability was done with replacement.</em></u>

Probaility of an event happening=\frac{number of required outcomes}{number of possible outcomes}

number of blue marbles= 2

number of green marbles=5

total number of marbles=7

(a) probability that both marbles are blue = pr(first is blue)*pr(second is blue)

                                  =\frac{2}{7}*\frac{2}{7}

                                   =\frac{4}{49}

(b)probability that both marbles are the same color =pr(first is blue)*pr(second is blue) + Pr(first is green)*Pr(second is green)

   =\frac{4}{49} + \frac{5}{7}*\frac{5}{7}

   =\frac{4}{49} + \frac{25}{49}

 =\frac{29}{49}

(c)Probability that the marbles are different in colors=pr(first is blue)*pr(second is green) + Pr(first is green)*Pr(second is blue)

  =\frac{2}{7}*\frac{5}{7}+ \frac{5}{7}*\frac{2}{7}

           =\frac{10}{49}+\frac{10}{49}

      =\frac{20}{49}

6 0
3 years ago
If the radius of a circle is 3.2 meters, what is the diameter?<br> Show your work
Likurg_2 [28]

Answer:

d=6.4m

Step-by-step explanation:

d=2r=2·3.2=6.4m

3 0
3 years ago
Will give Brainliest. Write a linear equation for this statement:
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Answer:

H(d) = -9.5(d-1) + 100

Step-by-step explanation:

Let d_n denote the number of hits on day n, then:

d_1 = 100, d_3 = 81

we can calculate that over the 2 days, the number of hits decreased by 19.

Assuming this is a linear equation and not an exponential decay line, then the series equation would be: d_n_+_1 = d_n - 9.5

To write this as a linear equation, if H(d) is a function where d is the day starting from 1 and H(d) is the nubmer of hits on that day:

H(d) = -9.5(d-1) + 100

3 0
2 years ago
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