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2 years ago

PLEASE ANSWER ASAP !!!!!

Mathematics

2 answers:

GenaCL600 [577]2 years ago

4 0

Answer:

it would be -4<x< inf which is B

Novay_Z [31]2 years ago

3 0

The answer is B. It’s greater/equal because the dot is filled in. Domain means how much the lines spans across the x axis, and since the line has no end it will go on forever, or until infinity.

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D^2 - 4d = 3d Solve each equation. Factor and use the zero product property to solve. Show all work algebraically.

AveGali [126]

D^2 - 4d = 3d

d^2 - 7d = 0

d(d - 7) = 0

d = 0 or d - 7 = 0

d = 0 or d = 7

8 0

3 years ago

An equilateral ∆ has sides of length 16 cm. Find the length of an altitude.

inn [45]

The length of the altitude is $8\sqrt{3}$

Explanation:

Let ABC be an equilateral triangle.

It has sides of length 16 cm

Let AD be the altitude of the triangle.

We need to determine the length of an altitude.

Let AC = 16 cm and CD = 8 cm

Let us consider the right angled triangle ADC

Using the Pythagorean theorem, we have,

$AC^2=AD^2+DC^2$

Substituting the values, we get,

$16^2=AD^2+8^2$

$256=AD^2+64$

$192=AD^2$

$8\sqrt{3}=AD$

The length of the altitude is $8\sqrt{3}$

5 0

3 years ago

What is the quotient of 8 and 72.16

Wittaler [7]

72.16./8 is equal to 9.02.

72 divided by 8 is 9.

,16 divided by 8 is .02.

8 0

3 years ago

Solve the logarithmic equation. When necessary, round answer to the nearest hundredth. log 3(x + 4) - log 3(x + 2) = log 327

alexandr1967 [171]

Answer:

$x = -\dfrac{25}{13}$

Step-by-step explanation:

$\log_3{x + 4} - \log_3{x + 2} = \log_3 {27}$

$\log_3 \dfrac{x + 4}{x + 2} = \log_3 {27}$

$\dfrac{x + 4}{x + 2} = 27$

$x + 4 = 27(x + 2)$

$x + 4 = 27x + 54$

$-26x = 50$

$x = -\dfrac{50}{26}$

$x = -\dfrac{25}{13}$

8 0

3 years ago

the ratio of length, breadth and height of a room is 4:3:1. If 12m^3 air is contained in a room, find the length , breadth and h

son4ous [18]

9514 1404 393

Answer:

length: 4 m
breadth: 3 m
height: 1 m

Step-by-step explanation:

The product of ratio units is 12 unit³, so each must stand for 1 m.

The dimensions of the room match the ratio units:

4 m length by 3 m breadth by 1 m height

6 0

2 years ago