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omeli [17]
3 years ago
12

Indicate the second degree equations

Mathematics
1 answer:
irinina [24]3 years ago
7 0
Answer A is the correct equation
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A traveling soccer team allows only the top 3% of athletes who try out to be part of the team. If the team tryout scorecard has
skad [1K]

Answer:

169

Step-by-step explanation:

You need to use a Z-table for this.

There are different tables, in this table i searched for the probability of 97% because that equivalent to the top 3%.

for 0.97, Z = 1.88

The formula of Z is:

Z = (x-mean)/(st. dev.)

Solving x:

1.88 = (x-150)/10 \\x = 168.8 = 169

3 0
3 years ago
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What is y=3x^2-2 in vertex form
Nata [24]
\bf \qquad \qquad \textit{parabola vertex form}
\\\\\\
y=a(x-{{ h}})^2+{{ k}}\\
x=a(y-{{ k}})^2+{{ h}}\qquad\qquad  vertex\ ({{ h}},{{ k}})\\\\
-----------------------------\\\\
y=3x^2-2\iff y = 3(x-0)^2-2
3 0
4 years ago
A rectangular book measures 18 x 9. What is the length of its diagonal? Round your answer to the nearest tenth
avanturin [10]

Answer:

20.1246118 or 20.12

Step-by-step explanation:

First draw the box with the diagonal, as you can see it is split into 2 equal right triangles. Now use the pythagorean theorem (a^2+b^2=c^2) to find the length of the diagonal

6 0
4 years ago
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sergey [27]
6 cans of paint for a total of 90 dollars spent
I multiplied 120 by .20 to get 24 and subtracted it from 120 to get the amount that still has to be painted which is 96.
96 divided by 16 is 6 which is the number of cans of paint needed to paint the rest. Then just multiply by the cost (15$) and the answer is 90$
3 0
3 years ago
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Find the volume of the cone.<br> 12 cm<br> r = 8 cm<br> V = [?] cm<br> Round to the nearest tenth.
Pepsi [2]

Answer:

V=804.25

Step-by-step explanation:

<h3>V=n r² h/3=n. 8². 12/3=804.247≈804.25</h3>
7 0
3 years ago
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