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3 years ago

Lara wrote the following statement:

Mathematics

2 answers:

Viktor [21]3 years ago

7 0

Answer: C. Lara is incorrect, because more than one triangle can be drawn with the given information

Step-by-step explanation:

An isosceles triangle is a triangle which has only one pair of equal sides or equal angles.

Since, If one angle of isosceles triangle is 75°,

Then there are two possible cases,

Case 1: The angles of the triangles are 75°, 75° and 30°.

Case 2: The angles of the triangle are 75°, 52.5° and 52.5°.

Hence, she is incorrect because more than one triangle can be possible by the given information.

⇒ Option C is correct.

trapecia [35]3 years ago

4 0

C. Lara is incorrect, because more than one triangle can be drawn with the given information.

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The hourly cost of renting office space in Manhattan is shown by the graph below. The hourly cost of renting office space in Bro

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Answer:

Brooklyn is more expensive

Step-by-step explanation:

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LiRa [457]

Answer:

d = $\sqrt{146}$

Step-by-step explanation:

$d= \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\d= \sqrt{(-5-0)^2+(-9-2)^2}\\d= \sqrt{(-5)^2+(-11)^2}\\d= \sqrt{25+121}\\d= \sqrt{146}$

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3 years ago

Which is bigger -6 1/3 or -6.375

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3 years ago

HELP!!!! Find the area. Simplify your answer. 552-9s 3t2+t

Tems11 [23]

Answer:

A = (5s^2t - 9st) (3t + 1)

Step-by-step explanation:

(5s^2 - 9s) (3t^2 + t)

= 15s2t^2 + 5s^2t - 27st^2 - 9st

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3 years ago

Plllzzz im new and i neeed help

ella [17]

Answer:

4082

Step-by-step explanation:

Given

The composite object

Required

The volume

The object is a mix of a cone and a hemisphere

Such that:

Cone

$r = 10cm$ ---- radius (r = 20/2)

$h = 19cm$

Hemisphere

$r=10cm$

The volume of the cone is:

$V_1 = \frac{1}{3}\pi r^2h$

$V_1 = \frac{1}{3}\pi * 10^2 * 19$

$V_1 = \frac{1900}{3}\pi$

The volume of the hemisphere is:

$V_2 = \frac{2}{3}\pi r^3$

$V_2 = \frac{2}{3}\pi 10^3$

$V_2 = \frac{2000}{3}\pi$

So, the volume of the object is:

$V = V_1 + V_2$

$V = \frac{1900}{3}\pi + \frac{2000}{3}\pi$

$V = \frac{3900}{3}\pi$

$V = 1300\pi$

$V = 1300 * 3.14$

$V = 4082$

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3 years ago