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3 years ago

I need help on solving this math problem.

Mathematics

1 answer:

son4ous [18]3 years ago

5 0

Answer:

f(1)=-3

f(-4)=-11

f(6)=0

Step-by-step explanation:

Use the correct formula depending on what (x) equals.

When (x=1) you use the second formula because 1 is greater than -2 but less than 4

When (x=-4) you use the first formula because -4 is less than -2

When (x=6) you use the third formula because 6 is greater than 4

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The ratio of 3 km to 1800 m is

Ugo [173]

5 : 3

D1 = 3km = 3000 m (1km = 1000m)
D2 = 1800m

Ratio of D1:D2
=3000/1800
=1000/600 (dividing by 3)
=10/6 (dividing by 100)
=5/3 (dividing by 2)

= 5 : 3

6 0

3 years ago

If lines L and M are parallel, find x, y, and z. Explain your reasoning.

Katyanochek1 [597]

Answer:

The answer to your question is:

x = 43°, y = 137° and z= 43°

Step-by-step explanation:

-If lines L and M are parallel, that means that 43° and z are corresponding angles and they measure the same.

z = 43°

- y and 43° are supplementary angles , so

y + 43 = 180

y = 180 - 43

y = 137°

- x and z are vertical angles, so they measure the same

x = z = 43°

8 0

3 years ago

Consider this function. (r) = -3r + 3 Which graph represents the inverse of function ?

4vir4ik [10]

9514 1404 393

Answer:

C. graph Y

Step-by-step explanation:

Starting with f(r) = -3r +3, the inverse function can be found from ...

r = f(y)

r = -3y +3

r -3 = -3y

(r -3)/-3 = y

y = -1/3r +1

The inverse function will have a slightly negative slope and a y-intercept of 1. This matches graph Y.

3 0

3 years ago

10. Make Sense and Persevere The flag of the

kumpel [21]

Answer:

$s=\frac{P}{3}$
Dimensions of the flag:

$lenght=6.65\ ft\\\\width=3.5\ ft$

Area of the flag: $23.275\ ft^2$

Step-by-step explanation:

The missing figure of the exercise is attached.

We know that the perimeter of the triangle is given by:

$P= 3s$

Where "s" is the side lenght of the triangle.

Solving for "s", we get:

$s=\frac{P}{3}$

Therefore, if the perimeter of the triangle is 126 inches, its side length is:

$s=\frac{126\ in}{3}\\\\s=42\ in$

Since $1\ ft=12\ in$ , we know that "s" in feet is:

$s=(42\ in)(\frac{1\ ft}{12\ in})=3.5\ ft$

The area of a rectangle can be calculated with this formula:

$A=lw$

Where "l" is the lenght and "w" is the width

We can observe in the figure that the lenght and the width of the flag are:

$l=1.9s\\w=s$

Then, the dimensions of the flag are:

$l=1.9(3.5\ ft)=6.65\ ft\\w=3.5\ ft$

And the area is:

$A=(6.65\ ft)(3.5\ ft)=23.275\ ft^2$

3 0

3 years ago

Absolute value is the distance from any number to zero on a number

SSSSS [86.1K]

Answer:

Absolute value is the distance of a point from zero

Step-by-step explanation:

3 0

2 years ago

I need help on solving this math problem.​

I need help on solving this math problem.