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3 years ago

Please i need help ASAP please no links.

Mathematics

1 answer:

Pie3 years ago

7 0

Answer:PLZ MARK BRAINLIST

Draw a line from the center of the circle to the chord to form a right triangle.

The radius (20) forms the hypotenuse of the right triangle and distance from the center to the chord (16) forms a leg.

Use the Pythagorean Theorem to find the length of the other leg x (which would be 1/2 the length of the chord):

x^2 + 16^2 = 20^

x = 12

So the entire chord length = 12 * 2 = 24 units

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Find the equation of the line.

ale4655 [162]

Answer:

y= -17x-120.

Step-by-step explanation:

1) according to the condition the lines are parallel. It means the slope of the required line is -17;

2) if to substitute the (-7;-1) into the equation y= -17x+i, then i= -120;

3) the required equation of the line is y= -17x-120.

6 0

2 years ago

2 questions in the pictures, it's grade 9 algebra 1 giving brainliest for first answer 50 points

butalik [34]

write the above equation in the form of y = g(x).

⇒ y = (0.5)x + 3 – 4

Now, we convert the equation into y = mx + c form.

⇒ y = (0.5)x - 1

Here, we see that m = slope = 0.5, and c = y-intercept = -1.

Hence, the graph of g(x) = (0.5)x + 3 – 4 is a straight line with slope = 1/2 and y-intercept = -1.

8 0

3 years ago

Stan's, Marks and Wayne's ages are consecutive whole numbers. Stan is the youngest, and Wayne is the oldest. The sum of their ag

Lisa [10]

Answer: Wayne is 35, Mark is 34, and Stan is 33.

33+34+35 = 102

4 0

3 years ago

I need help i do not understand this question

Anika [276]

Hello from MrBillDoesMath!

Answer:

Discussion:

-8 (17 - 12) / ( -2 (8 - (-2)) ) -

= -8 ( 5) / ( -2 ( 8+2)) as 17 -12 = 5 and -(-2) = +2

= -40/ ( -2 (10))

= -40/(-20) =

= +2

which is the third choice.

Thank you,

MrB

3 0

3 years ago

What is the degree measure of x in this triangle?

Crank

So this is trig, and when it comes to right (90°) triangles, it's imperative that you know:
SOH-CAH-TOA

Sine (x) = Opposite/Hypotenuse
Cosine (x) = Adjacent/Hypotenuse
Tangent (x) = Opposite/Adjacent

*hypotenuse is always the largest side, and the one opposite the 90° angle in right triangles

therefore we'll use SOH, because the opposite of x (O) and the hypotenuse (H) are given:

Sine (x) = Opposite/Hypotenuse
Sine (x) = 32/58 = 16/29 = 0.552
Sine (x) = 0.552
now we use something called arc-sine, or
${(sin)}^{ - 1}$
it's basically a fancy function of most advanced calculators, so we'll plug it in as:
$x = {(sin)}^{ - 1} (0.552)$
x = 33.49° --> answer B) is correct

4 0

3 years ago