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galina1969 [7]
3 years ago
8

What is the mistake? 3a+4b=7ab

Mathematics
2 answers:
MrRa [10]3 years ago
6 0

Answer:

You cannot add like terms like that.

Step-by-step explanation:

The terms are supposed to be added together, by combining them like that you are multiplying them together.

romanna [79]3 years ago
4 0
7ab because you put it in the wrong orders
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Please answer please
Luda [366]

Answer:

46°

Step-by-step explanation:

Since the 3 sides are given we can use any of the 3 trig. ratios to solve.

Using the tangent ratio in the right triangle

tan ? = \frac{opposie}{adjacent} = \frac{42}{40}, thus

? = tan^{-1} (\frac{42}{40} ) ≈ 46° ( to the nearest degree )

8 0
3 years ago
Cameron wants to measure a poster frame, but he only has a sheet of paper that is 8 1/2 b 11 inches
Nataly [62]
Long side is 11 inches
4 times 11=44 inches
that is 44 inches
5 0
3 years ago
Read 2 more answers
How did they get that answer? please answer
OverLord2011 [107]

Answer:

Look at my explanation

Step-by-step explanation:

The circumference of a circle is 2πr, so you can set it up like this since the circumference was 22π.

2πr = 22π

divide both sides by 2

πr = 11π

divide both sides by π

you get r = 11

So your radius is 11.

To find the area, you must do πr^2 ("^2" means squared)

if you substitute 11 for r you get

11π^2

you can do 11 squared first

11^2 = 121

the area of the circle = 121π

Keep in mind that they said to use 3.14 for π

so you can do 121 x 3.14

Final Answer: 379.94

3 0
3 years ago
If 3 * 9 + 2y = 47 what is the value of y
docker41 [41]
Answer: 10

Why?
3*9+2y=47
3*9= 27
27+2y=47
47-27= 20
2y=20
20/2=10
Y=10

Hope this helps :D
6 0
2 years ago
Which is the graph of f(x) = StartRoot x EndRoot?
Bingel [31]

The equation of the graph of f(x) = \sqrt x is (d) on a coordinate plane, an absolute value graph starts at (0, 0) and goes up through (4, 2).

The equation of the graph is represented as:

  • f(x) = \sqrt x

See attachment for the graph of f(x) = \sqrt x

From the attached graph, the curve passes through points (0,0) and (4,2).

Hence, the equation of the graph of f(x) = \sqrt x is (d)

Read more about graphs and functions at:

brainly.com/question/3939432

8 0
2 years ago
Read 2 more answers
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