Need help with this problem

Mathematics

1 answer:

Schach [20]3 years ago

6 0

Here we are:

Triangle PQR is equilateral, all the angles are 60, this means that triangle PSR is an isosceles triangle. 180-90=90 90/2=45 60-45=15
B=15

Hope this helps :)

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The second of two numbers is 6 times the first their sum is 77

Galina-37 [17]

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3 years ago

The table shows the outputs y for different inputs x:

Rasek [7]

Part A: Yes, the data represent a function. The definition of a function is a relation in which no value of x will have two different values of y.
(Every time you plug in 3 as x, you will always get 4 as y; it's ok if you plug in 3 and 5 as x and get the same y, you just can't get two different y's for one x; sorry, it is pretty confusing). None of the numbers in the table repeat, so we can safely say that the relation is a function.

Part B: All we have to do is plug in 11 for x in the function given to find the answer:
$f(x)=5x-21\\f(x)=5(11)-21\\f(x)=55-21\\f(x)=34$
In the table, y = 8 when x = 11, but in the function given, y = 34 when x = 11, so the function given is greater.

Part C: To find the answer to C, just plug in 99 for f(x), as it tells you to do:
$f(x) = 5x-21\\99=5x-21\\99+21=5x-21+21\\120=5x\\120/5=5x/5\\24=x$

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3 years ago

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The diameter of a circle is 19 m. What is the circumference of the circle? Use 3.14 for pi.

Arlecino [84]

Answer:

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Step-by-step explanation:

circumference = 19π = 59.66 m

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2 years ago

I only need to know is it 360 or 180?

Sveta_85 [38]

Answer:

So we know that all angles add up to 360. We first subtract it by 81

Now we have 279 as an answer. But since 2w + 81 cant be 360 because it doesn't add up because you have to spaces in between them. It adds up to 180 not 360

<h2><u>From your question its 180</u></h2>

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olasank [31]

Answer:

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Step-by-step explanation:

Multiply 30.3 with 13.. Will get the answer 393.9

30.3= x / 13

X = 30.3 x 13