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3 years ago

Can you only draw one unique isosceles triangle if it contains an angle of 65 degrees?

Mathematics

2 answers:

netineya [11]3 years ago

5 0

Yes i believe to can but im not a expert at math so dont take this awnser to heart

devlian [24]3 years ago

4 0

I think you can draw two: one with the angles 65,65,50 and one with 65,57.5,57.5

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A special variety of wallpaper covers only 60 square feet per roll. How many single rolls are needed to paper a room measuring 1

Ganezh [65]

Answer:

9 rolls

Step-by-step explanation:

The perimeter of the room measures 2(19' +12') = 62', so the area of the walls is ...

(62 ft)(8.5 ft) = 527 ft²

We know that 8 rolls will cover 8×60 ft² = 480 ft², and 9 rolls will cover 540 ft², so we will need 9 rolls to cover the walls.

7 0

3 years ago

How to solve 2+(3-2×2)×1

UkoKoshka [18]

Answer:

Step-by-step explanation: First figure what’s in the parentheses. (3-2*2) wanna do 2*2 That’s 4 then (3-4) = -1. 2+(-1)*1. Then multiply -1 by 1 which is -1. Then 2+(-1)= 1

4 0

3 years ago

What is the exact volume of the cylinder? Cylinder with height of 6 inches and radius of 3 inches. 324π in3 18π in3 36π in3 54π

Afina-wow [57]

Volume of a cylinder is pi*r^2*h where r = radius and h = height
so 3^2*6*pi = 9*6*pi = 54pi

54 pi is the answer. mark me brainliest please!

8 0

3 years ago

Read 2 more answers

What is the value of n such that the expression x² + 11x + n is a perfect square trinomial? a. 11. b. 25. c. 30. d.25. e.36

lapo4ka [179]

Answer:

The value of n is 30.25.

Step-by-step explanation:

The given expression is

$x^2+11x+n$ ....(1)

The perfect square trinomial are defined as

$(x+y)^2=x^2+2xy+y^2$ .....(2)

On comparing (1) and (2), we get

$2y=11$

$y=\frac{11}{2}$

The given expression is perfect square trinomial if

$n=y^2$

$n=(\frac{11}{2})^2$

$n=\frac{121}{4}$

$n=30.25$

Therefore the value of n is 30.25.

5 0

3 years ago

Read 2 more answers

The radius of a circle is decreasing at a rate of 6.56.56, point, 5 meters per minute. At a certain instant, the radius is 12121

Ilia_Sergeevich [38]

Answer:

The rate of change of the area of the circle is approximately $-490.09 \ m^2/min$ .

Step-by-step explanation:

Given:

$\frac{dr}{dt} = -6.5 \ m/min$

radius $r =12 \ m$

We need to find the rate of change of the area of the circle at that instant.

Solution:

Now we know that;

Area of the circle is given by π times square of the radius.

framing in equation form we get;

$A= \pi r^2$

to find the rate of change of the area of the circle at that instant we need to take the derivative on both side.

$\frac{dA}{dt}=\frac{d(\pi r^2)}{dt}\\\\\frac{dA}{dt}= 2\pi r \frac{dr}{dt}$

Substituting the given values we get;

$\frac{dA}{dt}= 2\times \pi \times 12 \times -6.5\\\\\frac{dA}{dt}\approx -490.09 \ m^2/min$

Hence The rate of change of the area of the circle is approximately $-490.09 \ m^2/min$ .

6 0

3 years ago