MATHEMATICS MIDDLE SCHOOL

Lia measures a wall of her room to be3.7 meters by 2.45 meters. How many significant figures are in this measurement of its areas? Explain.

Answers

Answer 1

Answer:

Answer:

Number of Significant Figures: 4

Step-by-step explanation:

The Significant Figures are 9, 0, 6 & 5

Hope this helps!

Here's a chart to help you continue finding any more you need help on!

Number How many sig. Sides? Which figures are sig?

81 2 8, 1

26.2 3 2, 6, 2

0.007 1 7

5200.38 6 5, 2, 0, 0, 3, 8

380.0 4 3, 8, 0, 0

78800 3 7, 8, 8

Hello!

The answer is:

The shadow is 173.20 feet

Why?

To solve the problem, we need to calculate the projection of the building's shadow over the ground.

We already know the height of the building (100 feet), also, we know the angle of elevation (30°), so, we can use the following formula to calculate it:

$Tan(\alpha)=(y)/(x)=(height)/(x)\n\nx=(height)/(Tan(\alpha) )$

Now, substituting the given information and calculating, we have:

$x=(height)/(Tan(\alpha) )$

$x=(100feet)/(Tan(30\°) )=173.20feet$

Have a nice day!

How would you graph the solution to -5w + 9 = 14 on a number line?1) Draw a point one unit to the right of zero.
2) Draw a point five units to the right of zero.
3) Draw a point five units to the left of zero.
4) Draw a point one unit to the left of zero.

Answers

Answer:

Draw a point one unit to the left of zero.

Step-by-step explanation:

The equation of unknown w is given here and we have to solve it and then we have to check how to draw the point w on the number line.

Now, the equation is - 5w + 9 = 14

⇒ - 5w = 5

⇒ w = - 1

Now, we know that in a number line if we move right from zero then this is a positive direction and if we move left from zero then this direction is the negative direction.

Hence, to plot w = - 1, we must draw a point one unit to the left of zero. (Answer)

Which is a correct first step for solving this equation?
- 3x + 2 – 5x - 7 = 4x + 2

Answers

Answer:

x = -7/12

Step-by-step explanation:

- 3x + 2 - 5x - 7 = 4x + 2

- 8x - 5 = 4x + 2

- 8x - 4x = 2 + 5

- 12x = 7

x = 7/-12

x = -7/12

Circle your variable

Rearrange x=3g+2 to make g the subject.

Answers

We have: x = 3g + 2

Subtract 2 from the both sides,
x - 2 = 3g + 2 - 2
x - 2 = 3g

Now, Divide 3 from both sides,
(x-2)/3 = 3g/3
g = x-2 / 3

In short, Your Answer would be x-2 /3

Hope this helps!

The concept of the linear system, subtraction, and division is applied.

g is taken as a subject then the equation is $\rm g = (x - 2)/(3)$ .

What is the linear system?

It is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.

Given

x = 3g + 2 is a single linear variable equation.

Rearrange x = 3g + 2 to make g the subject.

Subtract 2 from the equation.Then

x - 2 = 3g

Divide the equation by 3. Then

$\rm g = (x - 2)/(3)$

Thus, g is taken as a subject then the equation is $\rm g = (x - 2)/(3)$ .

More about the linear system link is given below.

brainly.com/question/20379472

Other Questions

The teacher kept track of how long it took students to finish a test. After 20 minutes, 3 students had finished the test. How long did it take until 8 students were finished?A.10 minutesB.50 minutesC.60 minutesD.80 minutes