PLEASE HELP ME this is really hard please

Mathematics

1 answer:

krok68 [10]3 years ago

7 0

Answer:

1100

2200

Step-by-step explanation:

Since speed is constant, the distance is proportional to the time. We notice that the number in the second column is 1650/3 = 550 times the number in the first column, so the two missing numbers are ...

2 × 550 = 1100

4 × 550 = 2200

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I need help please ..

mina [271]

Answer:

-9

Step-by-step explanation:

Just plug in

4(-3) - 3(3) - 12(-1)

= -12 - 9 + 12

= -9

5 0

2 years ago

Read 2 more answers

In which of these figures appear to contain a set of lines that is neither parallel nor perpendicular?

Art [367]

Answer:

Step-by-step explanation:

The lines in A meet at a right angle (90°) so they are perpendicular.

The lines in B meet at a right angle (90°) so they are perpendicular.

The lines in C do not meet and appear to be parallel.

The lines in D meet at an angle that does not appear to be 90°, so they are neither perpendicular nor parallel.

5 0

3 years ago

I also need help on this one smh

AysviL [449]

Answer:

C. 176.6 Square feet (I think)

Step-by-step explanation:

I tried many different ways and got three of the answers above but I think this is the right one.

The equation to find area of a circular cone base: $A= \pi r^2$

We are given the diameter (15 Feet) but we need to find the radius. So we use the diameter to radius formula: $r = \frac{d}{2}$
Plug in numbers: $r=\frac{15}{2}$ ≈ $7.5$
Use the Area formula now that you have radius: $A=\pi 7.5^2$
Solve and get = $a = 176.71458676$
Looking at the options the closest one to our answer (off by one-tenth) is C.