All categories

3 years ago

Can someone help on my math test? giving out brainiest!

Mathematics

2 answers:

katovenus [111]3 years ago

8 0

Answer:

None of them are correct because the circumference formula is 2pir

vesna_86 [32]3 years ago

8 0

Answer:

Neither one of them is correct

Step-by-step explanation:

Since the formula to find the circumference of a circle is C = dπ or C = 2πr. We know that a diameter of the circle is the same as 2 times the radius of the circle, here Sawyer and his sister are both saying the same thing, one way or the other. When Sawyer says C = d, he should multiply the d with a pi sign to get the correct circumference. Similarly when his sister says C = 2r, she is stating the congruent equation to the one of Sawyer's, therefore she needs to multiply 2r by the pi sign to get the correct circumference. Hence, both Sawyer and his sister are wrong stating the equation to solve for the circumference of the circle.

Hope this helps!

You might be interested in

The altitude of a plane is 1200 meters. From a point on the ground, the angle of elevation of an airplane is 25º. What is the di

gtnhenbr [62]

Answer:

2839.4 meters

Step-by-step explanation:

Given that:

Altitude = 1200 m

Using trigonometry :

The distance from point P to the airplane :

Using trigonometric relation :

Sin θ = opposite / hypotenus

Sin θ = altitude / x

Sin θ = 1200 m / x

Sin 25 = 1200 / x

0.4226182 = 1200 / x

x = 1200 / 0.4226182

x = 2839.4423

Distance from P to airplane = 2839.4 meters

8 0

3 years ago

Solve the following equation for y: −8x+ 4y = 20

MrRissso [65]

Answer:

y=5+2x

Normally I would explain it, but im in a bit of a hurry today. I apologize for the inconvenience!

8 0

3 years ago

I desperately need this question answered. See attached image thanks so much

Dahasolnce [82]

For this case we must follow the steps below:

step 1:

We place each of the given points on a coordinate axis

Step 2:

We join the AC points (represented by the orange line)

We join the BD points (represented by the blue line)

It is observed that the resulting figure after placing the 4 points on a coordinate axis, turns out to be a rhombus.

In addition, the blue and orange lines turn out to be perpendicular, that is, they have an angle of 90 degrees between them. This can be verified by finding the slopes of each of the two straight lines (blue and orange), which must be opposite reciprocal, that is, they comply: $m1 * m2 = -1$

In this case, the slope of the orange line is $m1 = 1$ and that of the blue line is $m2 = -1$

Then $m1 * m2 = 1 * -1 = -1$ , it is verified that they are perpendicular.

Thus, the conclusion is that ABCD is a rhombus and AC is perpendicular to BD.

Answer:

See attached image

Option D

6 0

3 years ago

Create a real life scenario that could be modeled by the equation: y = 50 + 25x

Alenkasestr [34]

Maybe something money-wise.

Jenny's subscription requires a 50$ desposit, as well as a monthly fee of 25$. How much will she have paid after x months?

6 0

2 years ago

Read 2 more answers

First-person to get the answer correct with an explanation gets Brainliest

My name is Ann [436]

Answer:B A D C

Step-by-step explanation:

Since diameter is double radius you can half that to get radius B is the smallest since it's radius is 3. then we have A because it is 4 then D since its double B that gives us 6 then finally you have C.

7 0

3 years ago

Read 2 more answers