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yuradex [85]
1 year ago
15

Guys how do I solve 3x+x. PLEASE HELP!!!!!

Mathematics
2 answers:
MA_775_DIABLO [31]1 year ago
8 0
I did the math and it is 4x
Schach [20]1 year ago
3 0

Answer: 4x

Step-by-step explanation:

Combine like terms

3x + x

4x

Hope this helps!

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Point A(3,2) is on a circle whose center is C(−2,3). What is the radius of the circle?
goldfiish [28.3K]

Answer:

The radius of the circle is √26.

Step-by-step explanation:

Since point A is on the circle, the distance between that point and the center of the circle is equal to the radius.

To find the distance between two points, the following equation should be used:

x^{2} =(x_{A}- x_{C}) ^{2} + (y_{A}- y_{C}) ^{2}

Replacing the numeric values:

r^{2} =(3- (-2)) ^{2} + (2-3) ^{2}\\r^{2} =(5) ^{2} + (-1) ^{2}\\r=\sqrt{26}

The radius of the circle is √26.

6 0
3 years ago
A collection of 108 coins containing only quarters and nickels is worth $21.
Rudiy27

Answer:

The value could replace q is 108 - n ⇒ the last answer

Step-by-step explanation:

* Lets study the values of quarters and nickles

- One quarter = 25 cents

- One nickle = 5 cents

- The number of coins is 108

- The coins are nickles or quarters only

- The coins worth $ 21

* Lets solve the problem

∵ The number of coins is 108 coins

- Let the quarter is q and the nickel is n

∴ q + n = 108 ⇒ (1)

∵ The coins worth $21

∵ $ 1 = 100 cents

∴ $21 = 21 × 100 = 2100 cents

∵ The quarter = 25 cents

∵ The nickels = 5 cents

∴ 25q + 5n = 2100 ⇒ (2)

- To find the value which replace q use equation (1)

∵ q + n = 108 ⇒ subtract n from both sides

∴ q = 108 - n

* The value could replace q is 108 - n

3 0
3 years ago
Read 2 more answers
In the diagram, which angles are vertical angles? Check all that apply.
dybincka [34]
The vertical angles made is ABE and CBD, Thus meaning that your answer is B
5 0
3 years ago
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Calculate the amount of interest earned on a $2,000 investment made for 2 years at 3% p.a..
Mrrafil [7]
PxRxT
=$2,000 x 3% (0.03)
=$60 x 2 years
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The answer is $120
8 0
3 years ago
Someone plz help me
IRINA_888 [86]

Answer:

Which question do you want us to do?

4 0
3 years ago
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