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3 years ago

Best explained and CORRECT answer gets brainliest.

Mathematics

1 answer:

pochemuha3 years ago

4 0

The answer should be C,

To solve this question, we have to use the rule of triangle inequality. This means, lengths of the any 2 sides of a triangle added up, must be longer than the remaining side.

Therefore, we can try and see which one of the options fits the rule.

A.
35+25 > 10 ✔️
25 + 10 = 35❌
A cannot make a triangle.

B.
15 + 10 > 5 ✔️
10 + 5 = 15 ❌
B cannot make a triangle.

C.
35 + 45 > 55 ✔️
45 + 55 > 35 ✔️
35 + 55 > 45 ✔️
C can make a triangle.

D.
25 + 25 < 75 ❌
D cannot make a triangle.

Therefore, the answer should be C.

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Answer:

x > -1

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What is the length of line segment c d? round to the nearest tenth. 2.3 cm 4.0 cm 10.7 cm 18.6 cm

ale4655 [162]

The value of CD is 10.7 cm , Option C is the right answer.

<h3>What is a Line Segment ?</h3>

A line segment is a line of fixed measure.

From the figure , as Triangle ABC is a right angled triangle

sin 30 degree = (Perpendicular / Hypotenuse)

∠ B = 30° , AB= 10 cm

sin 30 = AC/10

AC = 5 cm.

To determine CD ,

In Triangle ADC ,

tan 25 = Perpendicular / Base

tan 25 = AC / CD

tan 25 = 5 / CD

CD = 5 / 0.4663

CD = 10.7 cm

Therefore the value of CD is 10.7 cm , Option C is the right answer.

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brainly.com/question/25727583

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2 years ago

A sphere and a cylinder have the same radius and height. The volume of the cylinder is 8 meters cubed. Yolanda found the volume

Mrrafil [7]

Answer:

Yolanda should have found the volume by multiplying 8 by four-thirds

Step-by-step explanation:

Here, we want to find Yolanda’s error.

we proceed as follows;

Mathematically, the volume of the cylinder can be calculated using the formula;

V = pi * r^2 * h

now since the radius of the cylinder and the height is equal, we can say that h = r

and thus, the volume can be written as

V = pi * r^2 * r = pi * r^3

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V = 4/3 * pi * r^3

Now from the question we know that the value of pi * r^3 =8 which is the value for the volume of the cylinder.

Thus the volume of the sphere would be 4/3 * 8

so the correct answer here is B

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Svetlanka [38]

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Setler [38]

The first option is the right answer

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