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3 years ago

HELP ME PLEASE I BEG YOU I REALLY NEED WITH THESE QUESTIONS!!!!!!!! RUBE

Mathematics

1 answer:

pickupchik [31]3 years ago

8 0

The first question above number 4 is A the first one the answer for number/question 4 is B. and that last question is A. and B. im sure of it please let me know if im right

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Sally has 8 apples and her brother stole 4. how many does she have left

sergiy2304 [10]

Answer: Sally has 4 apples.

Step-by-step explanation: If she started off with eigth apples and her brother has stolen four apples, then she has four apples left.

8-4=4

Hope this helps you out! ☺

-Karleif-

7 0

3 years ago

2x-y-z=4, -x+2y+z=1, 3x+y+z=16. Please help

tangare [24]

1. X=2+1/2y+1/2z

2. X=-1+2y+z

3. X=16/3-1/3y-1/3z

6 0

3 years ago

How do I turn this into a radical?

dimaraw [331]

6sqrt(2) i’m pretty sure

7 0

3 years ago

PLSSS HELPPP

notka56 [123]

Answer:

slope of n =⅔

Step-by-step explanation:

The product of the slope of two perpendicular lines(m1•m2) must equal -1.

This means that if you have the slope of one line,find it's negative reciprocal to obtain the slope of the other.

Thus,-1/(-3/2)=⅔

3 0

3 years ago

The base of a solid in the xy-plane is the circle x2 + y2 = 16. Cross sections of the solid perpendicular to the y-axis are semi

Alexus [3.1K]

Answer:

The volume of the solid will be = 134.1 cubic units.

Step-by-step explanation:

The base of a solid has the equation of a circle x² + y² = 16 in the xy-plane. Cross-sections perpendicular to the y-axis of the solid are semicircles.

Therefore, the solid will be the shape of a hemisphere.

Now, the radius of the hemisphere will be 4 units.

{Since the base of the hemisphere is on the xy-plane and have equation

x² + y² = 4²}

Therefore, the volume of the solid will be = $\frac{2}{3}\pi r^{3} = (\frac{2}{3})\times (\frac{22}{7}) \times (4^{3}) = 134.1$ cubic units. (Answer)

6 0

3 years ago