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Vlada [557]
4 years ago
8

Find the x-intercept of parabola with vertex (1,-17) and y-intercept (0,16)?

Mathematics
1 answer:
Ad libitum [116K]4 years ago
5 0
Y=a(x-1)^2 -17 is the equation of the parabola.
at (0,16), 16=a(0-1)^2 -17.  Solve for a = 33.
Equation is then y=33(x-1)^2-17 so when y=0,
(x-1)^2 = 17/33
x-1 = + and - square root of 17/33
x = 1.7177 and 0,2823 as the intercepts
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What is the total surface area of the triangular prism in square yards?
vivado [14]

Answer:

A

Step-by-step explanation:

8 0
3 years ago
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So I know the answer I just need to know the process. Could someone pls help?
Maslowich

Answer:

FIGURE 1:

x = 118; y = 96

FIGURE 2:

x = 85; y = 65

Step-by-step explanation:

FIGURE 1:

You know that x = 118 because of the Corresponding Angles theorem.

Because of the Exterior Angle Theorem (triangles), you can then figure out what y is with the following equation: y + 22 = 118 to get y = 96.

FIGURE 2:

In this figure, you first need to determine what the third angle in the bottom right triangle is. Using the Triangle Sum Theorem, you would find that the third angle is 70.

Because of the Vertical Angles Theorem, you know that the third angle in the top left triangle is also 70. With this information, you can now solve for x using the Triangle Sum Theorem to get x = 85.

Now that you know x, you can solve for y. The other 3 angles in the quadrilateral in which y is a part of are 90, 110, and 95. These could be figured out using the Linear Pair Postulate, the Vertical Angles Theorem, and the Linear Pair Postulate respectively. Now you can figure out y by using the Quadrilateral Sum Conjecture to get y = 65.

6 0
3 years ago
What is the approximate volume of a cone with a height of 9 fr and radius of 3 ft?
Studentka2010 [4]

Answer:

85

Step-by-step explanation:

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=1/2*22/7*3^2×9=85

4 0
3 years ago
Please, help me!!
NemiM [27]
50 i’m pretty sure that’s The answer
7 0
3 years ago
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Lea buys 20 picture frames. Some are 4 in. by 6 in. frames which cost $5.80 each, and the rest are 5 in. by 7 in. frames that co
MAXImum [283]
To find the answer we have to slowly analyze the command.
 For surely on the one side we want to have total cash spent, so 80.8$
We know that there are 2 types of frames 5,80$ and 9.60$.
We know too, that f is the number of frames 5.80$ bought.
Simply, to find the cash spent on those frames we have to just mulitply 5.80$ times f, so we obtain f*5.8.
We can say that number of bigger frames is 20-f.
So to find cash spent on bigger frames we have to multiply 9.60$ times (20-f), so
9.60*(20-f)
Now we can just add cost of all frames together
f*5.80+9.60(20-f)
And we know that is equal to 80.8, so
f*5.80+9.60(20-f)=80.8

As we can see, the answer is b.
5 0
3 years ago
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