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2 years ago

Find AB Round to the nearest tenth.

Mathematics

1 answer:

zimovet [89]2 years ago

6 0

19.2
To find the hypotenuse the equation would be: a^2 + b^2 = c^2.
12 squared is 144 and 15 squared is 225. Add them and you get 369. Then, square root 369 to isolate c. It'd be about 19.2

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when solving the equation 5x-3=5, MaReeco rewrote the equation as 5x =2.Did MaReeco perform an acceptable move to this equation?

aliina [53]

Answer:

Please check the explanation.

Step-by-step explanation:

Given the equation

$5x-3=5$

MaReeco's rewrote equation is given by

$5x = 2$

As MaReeco subtracted 3 to the right side of the equation, which imbalanced the equation. Hence, it is not correct.

Correction:

For the next step, MaReeco should have added 3 to both sides

i.e.

$5x-3+3=5+3$

$5x=8$

Therefore, the acceptable move would have been:

$5x=8$

6 0

2 years ago

If f(x)= 3/x+2-sqrt x-3, complete the following statement: f(19)=

Inessa05 [86]

The answer is: $f(19)=-3\frac{6}{7}$

Explanation

Given function is: $f(x)= \frac{3}{x+2}-\sqrt{x-3}$

For finding the value of $f(19)$ , we just need to plug $x=19$ into both sides of the above function and then simplify the right side. So.....

$f(19)=\frac{3}{19+2}-\sqrt{19-3}\\ \\ f(19)=\frac{3}{21}-\sqrt{16}\\ \\ f(19)=\frac{1}{7}-4\\ \\ f(19)= \frac{1-28}{7}=-\frac{27}{7}=-3\frac{6}{7}$

So, the value of $f(19)$ will be $-3\frac{6}{7}$

3 0

3 years ago

Read 2 more answers

How much higher is 500 than -400m?

Flura [38]

If negative 400 then 600m

6 0

3 years ago

Read 2 more answers

Subtract. (3x+4)-(x+2)

Flauer [41]

I hope this helps please tell me if I got it wrong so I can fix and learn more lol

I would first distribute the negative to x+2 so then it becomes x-2.
The equation that I did was 3x+4-x-2 And then u would subtract 3x-x which would become 2x and then just subtract 4-2 And that would become 2

Answer: 2x+2

8 0

2 years ago

The sides of a triangle have lengths s, s, s+4, and 3s. What is the perimeter of this triangle

Ilya [14]

S + (3s)+(s+4) =0
I’d assume this is the answer based on information given

5 0

3 years ago