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Masja [62]
2 years ago
5

Please help me with this ​

Mathematics
1 answer:
prisoha [69]2 years ago
3 0

Angle AOB + angle BOC = angle AOC

7x + 30 + 9x + 42 = 104

16x = 104 - 72

16x = 32

x = 2 degrees

Angle BOC = 9x + 42 = 18 + 42 = 60 degrees

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A photographic negative is 3 cm by 2 cm. A similar print from the negative is 9cm long on its shorter side. What is the length o
lbvjy [14]

Answer:

13.5 cm

Step-by-step explanation:

9 divided by 2 = 4.5 *There's a 4.5 increase

3 X 4.5 = 13.5

The new print is 13.5cm by 9cm

5 0
3 years ago
I don't get the problem
Ulleksa [173]
A(b + c) = a*(b + c) = a*b + a*c

You must multiply individual terms and see what it would equal
3 0
3 years ago
Please help me on these questions and explain it thanks
BlackZzzverrR [31]
For problem 2:

The answer would be B) Car A travels more miles per gallon of fuel than Car B.

This is because Car B is shown on the graph to travel the same number of miles as Car A using 16 gallons of fuel, while Car A uses only 4 gallons. Thus, Car A travels further with less fuel.

For problem 3:

Let's write out the equation and try to solve.
5x + 1 = 3x + 7

First, subtract 3x from both sides.
5x - 3x + 1 = 3x - 3x + 7
2x + 1 = 7
Now, subtract one from both sides.

2x + 1 - 1 = 7 - 1
2x = 6

Finally, divide both sides by 2.
2x/2 = 6/2

x = 3

You should only get B) One solution

Hope that helped!
8 0
3 years ago
Somebody help me please
posledela
130 degrees.

ADB = 90 degrees
BDT=40 Degrees

Therefore, TDS = ADB(90)+BDT(40)=130 degrees 
8 0
3 years ago
What is the value of x in the equation 3x + 2 = 5x - 8?
katrin2010 [14]

Answer:5

Step-by-step explanation:

3(5)+2=17

5(5)-8=17

X=5

5 0
2 years ago
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