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2 years ago

Area and perimeter pls

Mathematics

1 answer:

Alla [95]2 years ago

3 0

Perimeter 97.24

90 + 5 + 2.25

Area 1008

90 * 5 * 2.24 = 1008

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Evaluate the function for the given value of x f(n)=n^2-6n+7n at n=3

vagabundo [1.1K]

F(n)=13
3^2-6(3)+7(3)=12

6 0

2 years ago

I need help on number 2. A

Drupady [299]

You should use a protractor to help you with this answer; without one it's really hard to draw a 62 degree angle on your own. Sorry!!!

5 0

3 years ago

Please answer CORRECTLY !!!!!!! WILL MARK BRAINLIEST !!!!!!!!

siniylev [52]

Answer: its -13

Step-by-step explanation:

-5x -4y= -8

-5 -5

=-13

so f(x)= -13

Hope this helps :)

7 0

2 years ago

Read 2 more answers

part of the population of 4,500 elk at a wildlife preserve is infected with a parasite a random sample of 50 elk shows that 8 of

REY [17]

Answer:

A total of 720 elk are likely to be infected

Step-by-step explanation:

we shall be using the proportion by survey to estimate the number of infections

From the survey 8 out of 50 are infected. Thus the likelihood of infection is 8/50

We have 4,500 elk to consider. The number of elk likely to be infected will be 8/50 * 4500 = 720

8 0

2 years ago

The function f is linear. If f(2) = 2 and f(-6)=6 find f(6)

lina2011 [118]

$The\ slope-intercept\ form:y=mx+b\\\\f(2)=2\to for\ x=2\to y=2\\f(-6)=6\to for x=-6\to y=6\\\\put\ in\ equation\ of\ the\ line:\\\\ -\left\{\begin{array}{ccc}2=2m+b\\6=-6m+b\end{array}\right\ \ \ |subtract\ sides\ of\ the\ equations\\----------\\.\ \ \ -4=8m\ \ \ \ \ |divide\ both\ sides\ by\ 8\\.\ \ \ \ \boxed{m=-\frac{1}{2}}\\\\put\ m=-\frac{1}{2}\ to\ equation\ 2=2m+b:\\\\2=2\cdot(-\frac{1}{2})+b\\2=-1+b\ \ \ \ |add\ 1\ to\ both\ sides\\\boxed{b=3}\\\\\boxed{\boxed{y=-\frac{1}{2}x+3}}$

$therefore:f(x)=-\frac{1}{2}x+3\Rightarrow f(6)=-\frac{1}{2}\cdot6+3=-3+3=0\\\\Answer:\boxed{f(6)=0}$

5 0

2 years ago