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Dominik [7]
3 years ago
11

Evaluate the function f(x)=4x^2-10+2 find f(-7)

Mathematics
1 answer:
likoan [24]3 years ago
3 0

Answer:

188

Step-by-step explanation:

f(x)=4x² - 10+2

f(-7) = 4x² - 10 + 2

= 4(-7)² - 10 + 2

= 4 (49) - 10 + 2

= 196 - 10 + 2

= 188

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During the first 15 weeks of the 2016 season of a certain professional football​ league, the home team won 141 of the 241 ​regul
rusak2 [61]

Answer:

The answer is 2.0190

Step-by-step explanation:

<em>From the given question,</em>

<em>We recall that,</em>

<em>p = 141/241 = 0.5850</em>

<em>so, p = 0.5</em>

<em>The Hypothesis is:</em>

<em>H₀ : P = 0.5, this means that  H0:50% of the games played will be won</em>

<em>vs</em>

<em>H₁ : P > 0.5, This indicates that, win is greater than 0.5 due to home field advantages.</em>

<em>n=241,x=141</em>

<em>Then,</em>

<em>SD(p)=√(p*q/n)=√(0.5*0.5/141)=0.0421</em>

<em>z = p - p/ SD (p) = 0.5850 - 0.5/0.0421 = 0.085/0.0421 =2.0190</em>

<em>therefore, there is strong evidence that there is home field advantages in professional football.</em>

8 0
3 years ago
What is the inverse one to one function of f(x) = square root of x-2???
alexira [117]
f(x) = \sqrt{x - 2} \\y = \sqrt{x - 2} \\y^{2} = (\sqrt{x - 2})^{2} \\y^{2} = x - 2 \\x^{2} = y - 2 \\x^{2} + 2 = y \\x^{2} + 2 = f^{-1}(x)
6 0
3 years ago
A train is 300 meters long. A tunnel is 2900 meters long. The train travels at 600 meters per min. How long is the time between
sattari [20]

ANSWER: 5 minutes 20 seconds

WORK: entire train to get out of tunnel - 2900+300 = 3200 meters till it's out

at 600 meters per minute ...3200/600 = 5 1/3 = 1/3 of a minutes is 20 seconds

Hope this helps brainliest and rate/thanks helps!

8 0
3 years ago
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Write five names for 64 .
Natali [406]
In word form: Sixty four
in expanded form: 6x10 + 4x1
in place value form: 6 tens + 4 ones
in Roman numeral form: LXIV
in Arabic numeral form: ٦٤
4 0
3 years ago
Read 2 more answers
Is this the correct answer?
alexgriva [62]

Answer:

Step-by-step explanation:

7 0
2 years ago
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