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slamgirl [31]
3 years ago
8

Solve for x in the diagram

Mathematics
1 answer:
Aliun [14]3 years ago
4 0

Answer:

x=12

Step-by-step explanation:

The two angles shown are complementary angles, so the add to 90 degrees

x+42 + 3x = 90

Combine like terms

4x+42 = 90

Subtract 42 from each side

4x+42-42 = 90-42

4x = 48

Divide by 4

4x/4 = 48/4

x = 12

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8 0
3 years ago
Read 2 more answers
Seven pizzas are shared equally between three friends. What fraction of pizza does each friend get? Write your answer as a mixed
vredina [299]

Seven pizzas: 7 pizzas

Shared between 3 friends: 7 pizzas / 3 friends

Simplify the fraction:

7 / 3

(3 goes into 7 twice, 7 - 6 = 1)

2 1/3

The fraction of pizza that each friend gets is 2 1/3.

Hope this helps!! :)

8 0
3 years ago
Read 2 more answers
How many solutions does the following equation have? -1/3x2=5/6+1/3y2 5y2=25/2-5x2
Phantasy [73]

The system of equations have 2 solutions

<h3>How to determine the number of solutions?</h3>

The system of equations is given as:

-1/3x² = 5/6 + 1/3y²

5y² = 25/2 - 5x²

Next, we plot the graph of the system of equations.

From the attached graph, the equations intersect at two points

Hence, the system of equations have 2 solutions

Read more about system of equations at:

brainly.com/question/12895249

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6 0
2 years ago
5.) what is the number symbol of four is to eight ​
zalisa [80]

Answer:

4:8

Step-by-step explanation:

I think

7 0
3 years ago
What is t'(x) when t(x) = In<br> x2<br> 2x2+3x+2<br> ?
Korvikt [17]

Step-by-step explanation:

2-×^2

t(×)=3×

(s o t )(x)=st(×)=s(t(x))=2-(3×)^2=2-9x^2

(s o t)(-7) =2-9(-7)^2=2-9(49)= 2-441= -439

7 0
3 years ago
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