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3 years ago

Please help! Need help asap!

Mathematics

1 answer:

Sedbober [7]3 years ago

6 0

Answer:

Step-by-step explanation:

The two angles in the triangle in the question are 58 degrees and 54 degrees.

Three angles in a triangle add up to 180 degrees

58 + 54 + x = 180

112 + x = 180

subtract 112 on both sides

x = 180 - 112 = 68 degrees

Only option A has a triangle that has the same angles, thus triangles are similar.

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Which of the following inequalities are correct?

NARA [144]

Answer:

Only the First one, A is the correct answer. The other options such B and C are incorrect.

Step-by-step explanation:

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From a circular cylinder of diameter 10 cm and height 12 cm are conical cavity of the same base radius and of the same height is

Nataliya [291]

<h3>Volume of the remaining solid = 628 cm^2</h3>

<h3>Whole surface area = 659.4 cm^2</h3>

Step-by-step explanation:

Now, Given that:-

Diameter (d) = 10 cm

So, Radius (r) = 10/2 = 5cm

Height of the cylinder = 12cm.

$volume \: of \: the \: cylinder \: = \pi {r}^{2} h$

$= > \pi \times {5}^{2} \times 12 {cm}^{3} = 300\pi {cm}^{3}$

Radius of the cone = 5 cm.

Height of the cone = 12 cm.

$slant \: height \: of \: the \: cone \: = \sqrt{ {h}^{2} + \: {r}^{2} }$

$= > \sqrt{ {5}^{2}+{12}^{2} } cm \: = 13cm$

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$= > \frac{1}{3} \pi \times {5}^{2} \times 12 {cm}^{3} = 100\pi {cm}^{3}$

therefore, the volume of the remaining solid

$= 300\pi {cm}^{3} - 100\pi {cm}^{3} \\ = 200 \times 3.14 {cm}^{3} = 628 {cm}^{3}$

Curved surface of the cylinder =

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therefore, The whole surface area of the remaining solid

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<h3>Hope it helps you!!</h3>

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2 years ago

Find z of the diagonal triangle. <br> Also, complete b.

STatiana [176]

Answer:

x = 30.91 cm , y = 29,86 cm and z = 39.30 cm.

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Step-by-step explanation:

sin 15 =8/x

x = 8 / sin 15

x = 30.91 cm.

and

tan 15 = 8/y

y = 8 / tan 15

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50^2 = x^2 + z^2

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z^2 = 1554.57

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3 years ago

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konstantin123 [22]

Answer: option 4 x < 175

x/5 < 35

multiply both sides by 5

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(i can’t do the correct symbol but you get the idea)

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Alex_Xolod [135]

Answer:

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