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3 years ago

I need help please

Mathematics

2 answers:

Sliva [168]3 years ago

4 0

Answer:

c i think

Step-by-step explanation:

mark brainlists

Serga [27]3 years ago

3 0

The answer would be c

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RES Find (fºg)(1) Ax) = x2 - 1 g(x)= v a 0 c. 4. b. d. 18 Help pls

slava [35]

Answer:

Step-by-step explanation:

So we have the two functions:

$f(x)=x^2-1\\g(x)=\sqrt x$

And we want to find:

$(f\circ g)(1)$

This is the same as:

$f(g(1))$

So, to find the answer, find g(1) first:

$g(x)=\sqrt x\\g(1)=\sqrt1\\g(1)=1$

Now, substitute this value for g(1):

$f(g(1))\\=f(1)$

And plug this into f(x):

$f(x)=x^2-1\\f(1)=(1)^2-1\\f(1)=1-1=0$

Therefore:

$f(1)=f(g(1))=(f\circ g)(1)=0$

Our answer is A

3 0

4 years ago

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225x=2700

Allisa [31]

Answer:

Step-by-step explanation:

just divide 2700 and 225 to get X

7 0

3 years ago

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Penny built a wooden ramp that rose 9 inches over a horizontal distance of 29 inches, as shown below.

vovikov84 [41]

Answer: 38

Step-by-step explanation:

Penny built a wooden ramp that rose 9 inches over a horizontal distance of 29 inches, as shown below.

Ramp

Length

9 inches

29 inches

7 0

3 years ago

Find the value of x.

alexgriva [62]

Answer:

x = 4 $\sqrt{2}$

Step-by-step explanation:

note the exact value of tan60° = $\sqrt{3}$

Since the triangle is right use the tangent ratio to find x

tan60° = $\frac{opposite}{adjacent}$ = $\frac{4\sqrt{6} }{x}$

multiply both sides by x

x × $\sqrt{3}$ = 4 $\sqrt{6}$

divide both sides by $\sqrt{3}$

x = $\frac{4\sqrt{6} }{\sqrt{3} }$ = 4 × $\sqrt{\frac{6}{3} }$ = 4 $\sqrt{2}$

8 0

4 years ago

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Notebooks cost a $1.20 each this week and they will be on sale for $0.80 what percentage is the sale

ozzi

We can use algebra.

So, what rate time 1.20 = .80

Let x = the rate (in a decimal form)

1.20x = .80

x = .6666666666

Now, we need to multiply by 100 to get a percentage.

66.66 The price is 66% of the regular price.

They marked it off

33.33%

6 0

4 years ago

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I need help please ​

I need help please