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4 years ago

Calculate the value of this expression. no work needed, just the answer.

Mathematics

2 answers:

wlad13 [49]4 years ago

5 0

Answer:

The answer is -1, i think.

Step-by-step explanation:

I take -1/3 and i add by 2 to get 1, but, we are going down instead of up because of our negative 1/3. So we get -1. Sorry if I am wrong.

Serga [27]4 years ago

3 0

its .25 my gggggg

Step-by-step explanation:

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If 3x+5=11 what is the value of x-2

Alina [70]

Answer:

Step-by-step explanation:

x = 2

2 x 3 = 6 + 5 = 11

2 - 2 = 0

7 0

3 years ago

Solve the formula V=pir^2h for r <br><br> PLEAASSSEEE HELP

otez555 [7]

Answer:

Step-by-step explanation:

So we have the formula:

$V=\pi r^2h$

And we want to solve it for r.

So, let's first divide both sides by π and h. This will cancel out the right side:

$r^2=\frac{V}{\pi h}$

Now, take the square root of both sides:

$r=\sqrt{\frac{V}{\pi h}}$

And we're done!

Our answer is B.

I hope this helps!

7 0

4 years ago

Read 2 more answers

Luke hiked 6 1/4 miles. Joana hiked 2 1/ 5 times as far. how far did joana hike?

mel-nik [20]

Answer:

13.75 or 13 3/4

Step-by-step explanation:

7 0

4 years ago

What is the answer? 15 points

artcher [175]

Answer:

The third option.

8 0

2 years ago

What is the sum of the first 50 terms of the series 2 + 17 + 32 + 47+ ...?

Alex

Answer:

$\huge\boxed{18,475}$

Step-by-step explanation:

The terms of this sum make the arithmetic sequence.

The fomula of a sum of <em>n</em> terms of an arithmetic sequence:

$S_n=\dfrac{[2a_1+(n-1)d]\cdot n}{2}$

We have

$a_1=2\\d=17-2=32-12=47-32=15\\n=50$

Substitute:

$S_{50}=\dfrac{[2\cdot2+(50-1)\cdot15]\cdot50}{2}=(4+49\cdot15)\cdot25=(4+735)\cdot25\\\\=739\cdot25=18,475$

3 0

3 years ago