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4 years ago

On the number line below the Numbers eight and B are the same distance from zero what is a plus B explain how you know?

Mathematics

1 answer:

konstantin123 [22]4 years ago

6 0

Since b is on the other side of zero and the same distance away from zero, it must be the additive inverse of a. In other words,
b = -a
so
a+b = a+(-a) = 0

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4. Find the slope of the line that passes through (2,6) and (10, 9).

Artemon [7]

Answer:

The slope is 3/8

Step-by-step explanation:

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3 years ago

Gus has a fish tank that holds 47104710 inches^3 3 of water. He is using a cylinder shaped bucket with a radius of 55 inches and

Darya [45]

Answer: 3 times.

Step-by-step explanation:

Here, The Volume of the gas tank = 4710 $in^3$

While, The radius of the cylindrical shaped bucket = 5 in

And, Height of the cylindrical shaped bucket = 20 in

Therefore, The volume of the bucket = $\pi \times r^2\times h$

= 3.14 × 5 × 5 × 20 = 1570

According to the question, cylinder shaped bucket is used to fill the tank.

Thus, The number of times the bucket will be used to fill the tank

= The Volume of the gas tank/ The volume of the bucket = 4710/1570 = 3

Therefore, The bucket will be used three times to fill the tank.

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3 years ago

Karina is creating two pyramids with the nets below using construction paper. In both nets, all of the triangular faces of the p

sleet_krkn [62]

Answer:

144 sq in

Step-by-step explanation:

Face height=9, bases=6 in

#Assume the pyramid has a square base.

First we need to calculate the perpendicular height of the pyramid:

$#Pythagorean \ Theorem\\a^2+b^2=c^2\\9^2-(0.5\times 6)^2=h^2\\72=h^2\\h=\sqrt{72} \ in$

Now to find the surface area of each pyramid:

$A=lw+l\sqrt{(w/2)^2+h^2}+w\sqrt{(l/w)^2+h^2}\\\\\#w=l=6,h=\sqrt{72}\\\\A=6^2+6\sqrt{(6/2)^2+72}+6\sqrt{(6/6)^2+72}\\\\A\approx 144\ sq \ in$

Hence amount of construction paper needed to make each pyramid is 144 sq in

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3 years ago

You buy 5 pounds of pears for $40. What is the cost of 8 pounds of pears?

lilavasa [31]

8 pounds of pears would cost 64.00 because 40/5=8.00-price per pear so 8 pounds x8= 64.00

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3 years ago

Read 2 more answers

A rectangle has a length that is 2 units longer than the width. If the width is increased by 4 units and length increased by 3 u

svp [43]

N is the width and s is the length You can figure the rest out. Ther are many ways to do this. I believe in you.

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3 years ago