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Law Incorporation [45]
4 years ago
6

What is the value of x? (Srº

Mathematics
1 answer:
Zinaida [17]4 years ago
3 0

Answer:

45

Step-by-step explanation:

3x+x=180

4x=180

x=180/4

x=45

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If f(x) = 3x^2-10x+2 find the vertex of y=f(x+4)-5
allochka39001 [22]

3 {(4 + x)}^{2}  - 10(x + 4) + 2 - 5
so
3( {x}^{2}  + 8x + 16) - 10x - 40 + 3
so
3 {x}^{2}  + 14x + 11
take differential calculus
6x + 14 = 0
you will find x then y
3 0
4 years ago
Martin earned the following scores on his last five tests.
sdas [7]

Answer:

The mean of Martin's scores is 85.2

Step-by-step explanation:

In order to find the mean of a set of numbers, you will have to add up all of the numbers and divide the result by the total numbers in the set.

98 + 78 + 84 + 75 + 91 = 426

Since there are 5 numbers in total, we will do 426 divided by 5.

426 ÷ 5 = 85.2

So, the mean of Martin's scores is 85.2

5 0
3 years ago
Read 2 more answers
Write a few sentences about different was to show subtraction for a problem like 32-15
iogann1982 [59]
I had 32 cookies and I wanted to give 14 of my friends a cookie each, how many cookies are left?


I went to the pet store with $32 and i bought a $15 for my dog, how much money do I have left?



My friend (insert any random name here) was biking a 32 mile race, he/she has gone 15 miles so far, how many more miles does (their name here) have to bike?
8 0
3 years ago
A cell phone company charges $5 for 250 text messages. How much does the company charge for 300 text messages?
andrey2020 [161]
$ 10
250 * 2 =300
5*2=10
So the answer is $ 10
7 0
4 years ago
Please hurry! This is due soon.
kotykmax [81]

Hi!

We can see here that this is a composition question.

And since the composition of g of f of x is x, we can conclude that g(x) is the inverse of f(x) (if you're confused, search up the definition of an inverse function).

To find an inverse function, we can take the f(x) function and change the positions of the x and y variables.

f(x)=\frac{e^7^x+\sqrt{3}}{2}

y=\frac{e^7^x+\sqrt{3}}{2}

x=\frac{e^7^y+\sqrt{3}}{2}

2x=e^7^y+\sqrt{3}

e^7^y=2x-\sqrt{3}

7y=ln(2x-\sqrt{3})

y=\frac{ln(2x-\sqrt{3})}{7}

Which is answer choice A, to check your work, you can solve the composition of g(f(x)), which will get you x.

g(f(x))

g(\frac{e^7^x+\sqrt{3}}{2})

\frac{ln(2(\frac{e^7^x+\sqrt{3}}{2})-\sqrt{3}}{7}

2s cancel.

\frac{ln(e^7^x+\sqrt{3})-\sqrt{3}}{7}

The natural log and e cancel.

\frac{7x+\sqrt{3}-\sqrt{3}}{7}

\sqrt{3}s cancel.

\frac{7x}{7}

7s cancel.

x

Hope this helps!

3 0
3 years ago
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