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2 years ago

Help me with this please

Mathematics

1 answer:

SVEN [57.7K]2 years ago

4 0

Answer:

An angle of a regular octagon is 135°

(n-2)180°/n

where n is number of sides

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last year a football game scored a total of 427 points, so far this year, they have scored 154 points. They have eight more regu

vfiekz [6]

Answer:

35 points

Step-by-step explanation:

See photo

6 0

2 years ago

Complete this sentence with the best of choices given

suter [353]

It means that the two line segments, EF and GH, are A, parallel.

The symbol between the segments (ll) is of two parallel lines, so it's stating that the segments are parallel.

5 0

3 years ago

Someone please help....<br> What is the value of the”?” Next to the blue arrow.

Alla [95]

Answer: the number is 20, as the denominator 9 multiplied by 4 is 36. simply multiply the numerator by 4.

3 0

3 years ago

Find the volume of the solid, please

dsp73

Answer:

$V \approx=1436.8$

Step-by-step explanation:

Variables and symbols:

r = radius
V = volume
A = surface area
C = circumference
π = pi = 3.1415926535898
√ = square root

Volume of a sphere in terms of radius:

$V = \frac{4}{3}\pi r^3$ , $V \approx 4.1888r^3$

To calculate the volume of a sphere:

Usually the hardest part is measuring or estimating the diameter of the sphere. Special tools exist for smaller parts like balls in ball-bearings, but it gets more complicated if the size is large. Knowing that the diameter is the largest internal measurement you can take should help.

Once you have the measurement, to find the volume use the formula above, in which π is the well-known mathematical constant equal to about 3.14159. To adjust for a half-sphere calculation, just divide the result by two.

Spheres and half-spheres are useful in engineering and architecture due to their property of being able to take equal amounts of pressure or force from each direction.

Solution:

$V=\frac{4}{3} \pi r^{3} =\frac{4}{3} *\pi *7^{3} \approx1436.75504$

Round to nearest tenth: $1436.8$

5 0

1 year ago

Read 2 more answers

Raymond was riding a zip-cable from the top of a viewing post. The cable is 70 yards long. The viewing post is 56 yards high and

Marysya12 [62]

Answer:

C. 42 yards

Step-by-step explanation:

You may recognize this as a 3-4-5 right triangle with a scale factor of 14. The two given sides are 5·14 = 70 and 4·14 = 56. Then the missing side is 3·14 = 42.

If not, you can use the Pythagorean theorem in the usual way:

... hypotenuse² = leg1² +leg2²

... 70² = 56² +leg2²

... leg2 = √(70² -56²) = √1764 = 42 . . . . yards

The cable is anchored 42 yards from the base of the tower.

8 0

3 years ago