Help me please I need the help I can get

What is an approximate equation passing through the lines (2,4) and (3,7)

babymother [125]

First, let's find what m is, the slope of the line...

m= y2-y1/x2-x1

m=7-4/3-2 You end up with 3/1 or 3 as your slope.

so far you have... y=3x+b

Take (2,4). y=mx+b or 4=3*2+b, solving for b: b=4-(3)(2). b=-2.

So your final equation is...

y = 3x-2

4 0

4 years ago

If the area of trapezoid is 100 cm, what is the perimeter of the trapezoid?

alexgriva [62]

Answer:

Step-by-step explanation:

If the area of trapezoid is 100 cm²what is the perimeter of the trapezoid?

Area of a trapezoid = 100cm

= 1/2(a + b) × h = 100cm²

Perimeter of a trapezoid = a + b + h

3 0

3 years ago

A grocery store sells 3

irina1246 [14]

You need to multiply the cost of grapes and the pounds of grapes to get the cost of one. $1.15 per one grape

6 0

3 years ago

Solve each calculation. Be sure to report your answer with the correct number of significant figures.

Serjik [45]

Question:

Solve each calculation. Be sure to report your answer with the correct number of significant figures.

5.61000 dg × 1.1010 dg

12.0 m ÷ 3.1415 m

Answer:

1. $5.61000dg * 1.1010dg$ = $6.177 dg^2$

2. $\frac{12}{3.1415} = 3.8198$

Step-by-step explanation:

1. 5.61000 dg × 1.1010 dg

We start by representing each digit using scientific notation

$5.61000 = 561000 * 10^{-5}$

$1.1010 = 11010 * 10^{-4}$

Then, Multiply both numbers

$561000 * 10^{-5} * 11010 * 10^{-4}$

First, rearrange

$561000 * 11010 * 10^{-5} * 10^{-4}$

$6176610000 * 10^{-5} * 10^{-4}$

From law of indices, $10^{-5} * 10^{-4} = 10^{-9}$ ;

So, we have

$6176610000 * 10^{-9}$

$6.176610000$

Because 5.61000 is given in 3 significant figures and 1.1010 is given in 4 significant figures, we approximate the result to 4 significant figures

This gives $6.177$

Hence, $5.61000dg * 1.1010dg$ = $6.177 dg^2$

2.

12.0 m ÷ 3.1415 m

Using proper notation

12.0 m ÷ 3.1415 m = $\frac{12}{3.1415}$

We start by representing 3.1415 using scientific notation

$3.1415 = 31415 * 10^{-4}$

By substitution;

$\frac{12}{3.1415} = \frac{12}{31415 * 10^-4}$

Take $10^{-4}$ to the numerator

$\frac{12}{3.1415} = \frac{12 * 10^4}{31415}$

From law of indices, $10^{4}$ = 10000

$\frac{12}{3.1415} = \frac{12 * 10000}{31415}$

Multiply

$\frac{12}{3.1415} = \frac{120000}{31415}$

Divide

$\frac{12}{3.1415} = 3.81983129078$

Because 12.0 is given in 2 significant figures and 3.1415 is given in 5 significant figures, we approximate the result to 5 significant figures

$\frac{12}{3.1415} = 3.8198$

5 0

4 years ago

Read 2 more answers

Identify the constant of proportionality in the following tables: Need help ASAP

Angelina_Jolie [31]

Answer:

Constant of Proportionality = 2

5 0

4 years ago

Read 2 more answers