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3 years ago

5

Which number sentence represents the Commutative Property of Addition? 32 + 9 = 9 + 32 44 + 1 = 45 56 + 0 = 56 (16 + 2) + 18 = 1

6 + (2 + 18)

1 answer:

alexandr1967 [171]3 years ago

6 0

Answer:

d

Step-by-step explanation:

dffddddfdddddddddd

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Kevin makes several cone-shaped candles. He uses a cone mold that has a height of 15 centimeters and a diameter of 10 centimeter

Natalka [10]

Answer:

1,177.5cm^3 of candle wax will be required.

Step-by-step explanation:

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8 0

3 years ago

-1=5+x/6 step by step

Gnesinka [82]

Answer:

-1=(30+x)÷6

-6=30+x

-6-30=x

x=-36

3 0

3 years ago

The midpoint of -7 and 8 on the number line is 1/2 true or false

Phoenix [80]

Answer:

True

Step-by-step explanation:

Yo find the midpoint between 2 points x1 and x2

midpoint = (x1+x2)/2

midpoint = (-7+8)/2

midpoint = 1/2

8 0

3 years ago

Sarah is training for a bike race . She rides her bike 5 3/4 miles in 45 minutes.what is Sarah's rate in mile per hour ?

poizon [28]

Answer:

7.6667 miles per hour

Step-by-step explanation:

Since the question is asking for her rate in Miles per hour. We want to convert the given time (minutes) to hours. 45 minutes is simply 3/4 of an hour, or 0.75 hours.

Now that we have how many miles she biked and how many hours it took, we simply divide the two values.

By converting 5 and 3/4 into a single fraction it would be 23/4, so we would divide 23/4 by 0.75 hours to get the final answer of 7.6667 miles per hour.

3 0

3 years ago

Write the standard form of the equation of the circle that passes through the point

AnnZ [28]

Answer:

The standard form of the equation of the circle is $x^2+y^2=1$ .

Step-by-step explanation:

A circle is the set of points in a plane that lie a fixed distance, called the radius, from any point, called the center.

The equation of a circle in standard form is

$(x-h)^2+(y-k)^2=r^2$

where <em>r</em> is the radius of the circle, and <em>h</em>, <em>k</em> are the coordinates of its center.

When the center of the circle coincides with the origin $h=k=0$ , so

$(x-0)^2+(y-0)^2=r^2\\x^2+y^2=r^2$

We are also told that the circle contains the point (0, 1), so we will use that information to find the radius <em>r</em>.

$0^2+1^2=r^2\\r^2=0^2+1^2\\r^2=1\\r=\sqrt{1}$

Therefore, the standard form of the equation of the circle is $x^2+y^2=1$ .

5 0

3 years ago