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3 years ago

In an isosceles triangle the base angles are congruent. True False

2 answers:

5 0

False, because the base angles of an isosceles triangle are congruent, if one base angle is right angle then both base angles are going to be right angles

34kurt3 years ago

4 0

True the base of an isosceles triangle are congruent

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Convert the polar representation of this complex number into its standard form z=4(cos150+isin150).

Katen [24]

Answer:

Step-by-step explanation:

Using the exact values

cos150° = - cos30° = - $\frac{\sqrt{3} }{2}$

sin150° = sin30° = $\frac{1}{2}$

Given

z = 4(cos150° + isin150° ) , substitute values

= 4(- $\frac{\sqrt{3} }{2}$ + $\frac{1}{2}$ i )

= - 2 $\sqrt{3}$ + 2i , that is

(- 2 $\sqrt{3}$ , 2 ) → B

7 0

3 years ago

I need help i dont get this

JulijaS [17]

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7 0

3 years ago

A baseball is thrown into the air from the top of a 224-foot tall building. The baseball's approximate height over time can be r

Studentka2010 [4]

9514 1404 393

Answer:

A. 7 seconds

Step-by-step explanation:

We assume your factored equation is something like ...

h(t) = -16t(t -7)(t +2)

The time it takes the ball to reach the ground is the positive value of t that makes a factor zero:

t -7 = 0 ⇒ t = 7

The ball will land on the ground in 7 seconds.

7 0

3 years ago

Two marbles are drawn without replacement from a box with 3 white, 2 green, 2 red, and 1 blue marble. Find the probability that

Likurg_2 [28]

White 3/8
Green 2/8
Red 2/8
Blue 1/8

Blue 1/7

7 0

3 years ago

If the area of a square with side x is equal to the area of a triangle with base x, then find the altitude of the triangle.

zhannawk [14.2K]

Answer:

$h= 2x$

Step-by-step explanation:

Given

Square

$Side = x$

Triangle

$Base = x$

$Altitude = h$

Required

Find h, if both shapes have the same area

The area of the square is:

$Area = x * x$

$Area = x^2$

The area of the triangle is:

$Area = \frac{1}{2} * Base*Height$

$Area = \frac{1}{2} * x*h$

Equate both areas

$x^2 = \frac{1}{2} * x*h$

Divide both sides by x

$x = \frac{1}{2} *h$

Multiply both sides by 2

$2*x = \frac{1}{2} *h*2$

$2x = h$

$h= 2x$

3 0

3 years ago