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3 years ago

Solve pls brainliest

Mathematics

2 answers:

Tcecarenko [31]3 years ago

6 0

Answer:

Triangle A is Acute

Triangle B is Right

Triangle C is Obtuse

Triangle D is Obtuse

Step-by-step explanation: This is right bro. 100%

seropon [69]3 years ago

4 0

Answer:

Triangle A) acute

Triangle B) right

Triangle C) obtuse

Triangle D) obtuse

Step-by-step explanation:

Any triangle less than 90° is acute.

Triangles at exactly 90° are right triangles.

Any triangle more than 90° are called obtuse.

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PQRST is a rectangular-based pyramid with a height of 9cm.

Diano4ka-milaya [45]

Answer:

54.1° (1 dp)

Step-by-step explanation:

Let the center point of the rectangle PQRS = M

Calculate the length of the line SM using Pythagoras' Theorem:

a² + b² = c²

(11/2)² + (7/2)² = SM²

42.5 = SM²

SM = √42.5 cm

The height of the pyramid is 9 cm, therefore, MT = 9

Now we have a right angled triangle with base SM and height MT and hypotenuse ST

We want to find the angle TSM, so we can use the trig formula tan x = O/A, where x is the angle, O is MT and A is SM

tan TSM = MT/SM = 9/√42.5

TSM = arctan (9/√42.5) = 54.082088°

So the angle between the line ST and the plane PQRS = 54.1° (1 dp)

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2 years ago

Explain why the vertical line does not represent a linear function.

Rashid [163]

Answer:

Its my first answer but may i have a brainlist please im new

Step-by-step explanation:

5 0

3 years ago

Calculate the area of the shaded sector.

KatRina [158]

4.28 is your short answer but your complete answer is 4.28571428571

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4 years ago

Which of the following equations is the translation 2 units up of the graph of y = |x|?

rosijanka [135]

Answer:

its y = |x| + 2

Step-by-step explanation:

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3 years ago

What are the zeros of the function below?

diamong [38]

If the factor of the function are (x - 3), (x + 3), and (x + 1). Then the zeroes of the function will be negative 3, 3, and negative 1. Then the correct option is A.

<h3>What is a factorization?</h3>

It is the method to separate the polynomial into parts and the parts will be in multiplication. And the value of the polynomial at this point will be zero.

The function is given below.

$\rm f(x) = (x^2 - 9) (x +1)$

The function can be written as

$\rm f(x) = (x^2 - 3^2) (x +1)\\\\\rm f(x) = (x - 3)(x+ 3) (x +1)$

If the factor of the function are (x - 3), (x + 3), and (x + 1). Then the zeroes of the function will be negative 3, 3, and negative 1.

More about the factorization link is given below.

brainly.com/question/6810544

#SPJ1

4 0

2 years ago