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Alex
3 years ago
8

If f(x)=x^2-1 and g(x)=x+2 then g(f(x)=

Mathematics
2 answers:
Nana76 [90]3 years ago
7 0

Answer:

Step-by-step explanation:

If f(x)=x^2-1 and g(x)=x+2 then g(f(x))= g(x²-1) = (x²-1)+2= x²+1

vlada-n [284]3 years ago
4 0

Answer:

Step-by-step explanation:

Just plug the f(x) function into x for g(x).  Then solve.

g(f(x))=(x^2-1)+2=x^2+1

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In a right triangle STR, angle T and R are complementary angles. The value of cos(T) is 9/41. What is the value of sin(R)?
alex41 [277]

Answer: C) 9/41

Step-by-step explanation: From the description, angle S is the right angle. Which means that angles T and R are complementary (they sum to 90 degrees). Because they are complementary, this means the cosine of one angle is equal to the sine of the other angle. If cos(T) is 9/41, then so is sin(R).

cr. USA Test Prep

5 0
3 years ago
Graph the line with slope <br> 2<br> 5<br><br> and <br> y<br><br> -intercept <br> −<br> 7<br><br> .
tia_tia [17]

Answer:

See attachment

Step-by-step explanation:

We want to graph the line with slope

m =  \frac{2}{5}

and y-intercept ,

b =  - 7

The equation of this line is

y =  \frac{2}{5}x - 7

Starting at -7 on the y-axis, we run 5 units and rise 2 units right.

Then draw a line through the y intercept and the new point

The graph is shown in the attachment.

3 0
3 years ago
Can someone figure this out?
ZanzabumX [31]

well, let's see the 10-pack is $15.37 BUT each of those 10 bars are 2.1 oz, so for the whole package you're getting really 10 * 2.1 = 21.0 oz.

the 12-pack costs $15.35 BUT each of those 12 bars are 1.4 oz, so for the whole package you're getting 12 * 1.4 = 16.8 oz.

which is the better deal?  which one gives you more ounces for the money?  after all, you're going to eat the bars, so you want more ounces, not more bars.

\bf \cfrac{15.37}{21}\cfrac{\$}{oz}~~\approx ~~0.73~\frac{\$}{oz}~\hspace{10em} \cfrac{15.35}{16.8}\cfrac{\$}{oz}~~\approx ~~0.91~\frac{\$}{oz}


so clearly you'd want to get the cheapest one with more ounces, so at $0.73 or 73 cents for each ounce, the 10-pack is the cheapest.

3 0
3 years ago
NEED ANSWER ASAP <br> MARKING BRAINLIEST
Digiron [165]
Area of a sector is x over 360 * pi r squares so in this case x would be 210 so it would be 210 over 360 and the pi r squared would be 24 pi and when we times that our answer is 14 pi

Answer:14 pi
8 0
3 years ago
I suck at math I need help
GaryK [48]

Answer:

b=74

Step-by-step explanation:

You just gotta use sum of angles in a triangle and sum of angles on a straight line.

3 0
3 years ago
Read 2 more answers
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