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3 years ago

What is the sum of -3 and -12

Mathematics

1 answer:

goblinko [34]3 years ago

4 0

Answer:

-15

Step-by-step explanation:

-3 + -12 = -15

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PLS HELP

Korvikt [17]

Answer:

7 inches

Step-by-step explanation: Every 1 inch = 50 miles. So every 50 miles of tunnel is 1 inch in a scale drawing. 350miles/50 miles=7 inches.

The scale drawing is 7 inches.

4 0

3 years ago

Read 2 more answers

I NEED HELP WITH THIS PLEASE HELP ME

vekshin1

Answer:

156 minutes

Step-by-step explanation:

So we need to create an equation to represent how Frank's phone company bills him

I will denote "y" as the total for his bill
I will denote "x" as the number of minutes Frank uses

So the phone company charges an $8 monthly fee, so this value remains constant and will be our "y-intercept"

They then charge $0.06 for every minute he talks, this will be our "slope"

Combining everything into an equation, we have: y = 0.06x + 8

Now since we were given Franks phone bill total and want to figure out how many minutes he used, we just need to solve the equation for x and plug in our known y value

y = 0.06x + 8 → y - 8 = 0.06x → $x=\frac{y-8}{0.06}$
Then plugging in our y value we get $x=\frac{17.36-8}{0.06}=\frac{9.36}{0.06}= 156$

Frank used up a total of 156 minutes

3 0

3 years ago

What is the volume, in cubic cm, of a cylinder with a height of 16cm and a base radius of 3cm, to the nearest tenths place?

charle [14.2K]

Answer:452

Step-by-step explanation:

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3 years ago

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Prove that the curve a(t) = (cost, sin 2t, cos 2t) is regular on R and that it self-intersects at (1,0,1). Check the self-inters

alexandr402 [8]

Answer:

The function a (t) is a vector function composed of the component functions $a_ {1} (t) = cost, a_ {2} (t) = sin2t$ and $a_ {3} (t) = cos2t$ . How $a_ {1} (t), a_ {2} (t), a_ {3} (t)$ are infinitely derivable functions in R, so they are regular functions in R.

Now, for $t = 0$ , you have to $a (0) = (cos (0), sin2 (0), cos2 (0)) = (1, 0, 1)$ . How the functions $a_ {1} (t), a_ {2} (t), a_ {3} (t)$ are periodic functions with period $2 \pi,$ the vector function $a (t)$ will take the same point $(1, 0 , 1)$ at $t = 2n\pi, n = 0, 1, 2, 3, ...$ then the vector function is auto-intercepted

Step-by-step explanation:

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3 years ago

nayelly is weighing how much of a solid resulted from a chemical reaction on a scale that reads to the nearest 1/8 ounce. The me

juin [17]

To round to the nearest tenth you much first turn the fraction to a decimal. 7/8= 0.875+6= 6.875. Now you must round to the nearest tenth. 7 is greater than 5 so you can round 8 to 9. The final answer would be 6.9. Hope this helps!

4 0

3 years ago