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ryzh [129]
3 years ago
14

F(x)=3x+5 and g(x)=2x+1value of x​

Mathematics
1 answer:
AlekseyPX3 years ago
7 0

You can treat x and 2x+1 just as though they are real numbers.

So f(2x+1) = 3(2x+1) - 5 = 6x + 3 - 5 = 6x - 2

In the above, I made use of something called the distributive law which says that if a,b and c are real numbers, then a(b+c) = ab + ac.

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I don't know how to do this. Any help?
Brut [27]

Answer:

cos 37=x/b (second one)

sin 37= a/b (third one)

tan 37=a/x (sixth one)

Step-by-step explanation:

Cos is defined by the adjacent side over the hypotenuse. Cos 37 would be x/b. Clearly, that is option 2. Sin is defined by opposite over hypotenuse. Sin 37 would be a/b. That is the 3rd option. Tan is defined by opposite over adjacent. Tan 37 would be a/x or the 6th option.

7 0
3 years ago
Tony can type at a constant rate of 110 words every 2 minutes.
kati45 [8]

Answer:

W = 55T

Step-by-step explanation:

He types 110 / 2 = 55 words every minute. Thus, W = 55T

8 0
2 years ago
Fill in the blank so that 81x2+_<br> x+81 is a perfect square trinomial.<br> 81x²+_____<br><br> x+81
densk [106]

the blank is 162

since 81 and 81 are both perfect squares the middle term (blank) will be the product of their roots times 2

√81=9

√81 =9

9 x 9 x 2

= 162

6 0
2 years ago
15 points !!!!!!!!!!!!!!!!!!!!!!!!1
zmey [24]
Five is the answer hope that helps
7 0
2 years ago
Please help me .......
Misha Larkins [42]
First we have to know the Pythagoreans theorem which is

a^2+b^2=c^2
7^2+8^2=c^2
49+64= 10.63
Hope this helps
3 0
3 years ago
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