Can some one help (8 grade math)

Answer:15

Step-by-step explanation:

distance = Sqrt((x2-x1)^2 +(y2-y1)^2)

15-3 =12

16-7=9

12^2 = 144

9^2 = 81

144+81 = 225

square root of 225 = 15

the distance is 15

Answer:

(0, 6)

General Formulas and Concepts:

Algebra I

Slope-Intercept Form: y = mx + b

Step-by-step explanation:

Step 1: Define

y = 3/2x + 6

Step 2: Break Function

Identify Parts

Slope m = 3/2

y-intercept b = 6

Answer:

[tex]\mathbf{\beta=140\ dB}[/tex]

Step-by-step explanation:

The Logarithm Function

The sound level is usually calculated as a logarithm by the formula:

[tex]\displaystyle \beta=10\log\frac{I}{I_o}[/tex]

Where

I   = Sound intensity in W/square meter

Io = Smallest sound intensity that can be heard.

[tex]I_o=1\cdot 10^{-12}\ W/m^2[/tex]

The blue whale can emit a sound of I=106.8 W/square meter, thus the sound level is:

[tex]\displaystyle \beta=10\log\frac{106.8}{1\cdot 10^{-12}}[/tex]

[tex]\displaystyle \beta=10*14[/tex]

[tex]\mathbf{\beta=140\ dB}[/tex]

Answer:

 4,3

Step-by-step explanation:

Answer:

C.x+8=3x

hope it helps.

Answer:

7x+14 I think is correct. it's just combining like terms

Answer:

y=5/3x+7/3

Step-by-step explanation:

Here are the points: (1,4) and (-2, -1)

let's first find the slope, which is with the equation m=(y2-y1)/(x2-x1) (m is the slope)

label the points:

x1=1

y1=4

x2=-2

y2=-1

now subsitute into the equation

m=(-1-4)/(-2-1)

m=-5/-3

m=5/3

the slope of the line 5/3

Here's the equation so far:

y=5/3x+b (b is a place holder)

we can substitute either one of the points into the equation so far to find b, because the line will pass through both of them>

let's use (1,4) as an example

4=5/3(1)+b

4=5/3+b

subtract 5/3 from both sides

7/3=b

Now, put it all together:

y=5/3x+7/3

Hope this helps!

Answer:

Step-by-step explanation:

It would be helpful if you could share the diagram of the equilateral triangle.

All 3 sides are equal, as are all 3 angles.

The altitude is perpendicular to the base.  The altitude, h, is equal to

h = s*( (√3) / 2, where s is the length of one side of the triangle.

Marked down 15% means the new price would be 85% of the original price ( 100%-15% - 85%)

Multiply the original price by 85%:

5250 x 0.85 = 4462.50

The new price is $4,462.50

Answer:

2,000,000

Plzzzzz give me Brainliest!!!!!  

Answer:

7.07

Step-by-step explanation:

5sin90=xsin45

5/sin45=7.07

Answer:

Step-by-step explanation:

Answer

q≤ -11

thats your answer i believe, just typing this because it said it was too short to post

Answer:

vfca

Step-by-step explanation:

vaddavavthui sn fa

Answer:

When estimating area, count the squares that cover the shape. When estimating perimeter, count the unit lengths that are around the shape.

Step-by-step explanation:

your welcome

Answer:

When estimating area, count the squares that cover the shape. When estimating perimeter, count the unit lengths that are around the shape.

Step-by-step explanation:

Credit to the guy above.

Answer:

$17

Step-by-step explanation:

This is simply stated as a function.

We can rewrite this problem out as --> f(d) = -d + 42

If we simply say that he spent d, the problem states that d is equivalent to 25.

So the function looks like this --> f(d) = -25 + 42

Therefore your answer becomes --> f(d) = 17

Step-by-step explanation:

4(2x-1)+3(2x+5)

8x-4+6x+15

8x+6x-4+15

14x+11

Answer:

14x +11

Step-by-step explanation:

4(2x-1)+3(2x+5)=8x-4+6x+15

=14x+11

Answer:

$4.50 for French Roast

$7.60 for Columbian

Step-by-step explanation:

tried substitution and elimination method but got different answers to I graphed these equations and found the point of intersection

5/3x + 25/8y = 31.25

29/12x + 9/16y = 15.15

point of intersection (4.5, 7.6)

Answer:

Step-by-step explanation:

Thus Markus buy 3.19 pounds of coffee altogether.

Step-by-step explanation:

25 - 2(5 + 4x)

= 25 - 10 - 8x (Distributive Property)

= 15 - 8x.

Answer:

Pounds of topsoil needs to order to cover an area of 169 square feet is 0.1275

Step-by-step explanation:

GIVEN: relation between the pounds of topsoil and area covered is ( a = 1325 p )

a represent area and b represent pounds of topsoil

To Find : pounds of topsoil needs to order to cover given area .

Solution : since here relation is given

                     a = 1325 p

            value of a = 169 square feet

so putting the value of a in above relation

       so ,  169 = 1325 p

             p = 169 / 1325  = 0.1275

So , pounds of topsoil needs to order to cover given area is 0.1275

Answer:

0.1275

Step-by-step explanation:

Hope this helps

Answer:

39

Step-by-step explanation:

Since the first measure is 39 that means the second is 39 because its the same.

Answer:

19

Step-by-step explanation:

38/2=19

Answer:

r = 19

Step-by-step explanation:

2r = 38 (Given)

r = 19 (Divide by 2 on both sides)

Answer:

2 out of every 5; 2:3; 2:5

Step-by-step explanation:

2 out of every 5 means that out of 5, he/she picks two (leftover 3)

the other choices are a ratio of if he/she has 2 of that then they will also have 5 of this

Answer:

...

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:-))

Answer:

All you do is replace the variable with the numbers given to replace them.

So your new equation is 10-4(2) this was given to you C=10 , D=2

Okay, let's solve it 10-4(2)

4*2 equals 8 so now it's 10-8

10-8

Answer:

Let the amount of feet be x

Let declination be y

so 35x at a declionation of 40 degrees 35x+40y=feet traveled before hitting the head

35x

40y

35x +40y= 40-y =35x+40-y

and 35x=35-x

35+40=x-y

The ball travels 43ft

Jk its free points lol

Step-by-step explanation:

Answer:

evaportation

Step-by-step explanation:

The vapor given off by water, plants, and animals is called evaporation.

Given is to find what does the water vapor given off by water, plants, and animals is called.

Evaporation is defined as the conversion of water into water vapour (into gas phase) and its release into the atmosphere. Similarly, the Water vapor given off by water, plants, and animals is called evaporation.

Therefore, the vapor given off by water, plants, and animals is called evaporation.

To solve more questions on evaporation, visit the link below -

https://brainly.com/question/320765

#SPJ2

Answer:

y=50x+120

Step-by-step explanation:

y is the ending altitude

x is the number of hours the climber has climbed

put 50 before x because that how fast the climber is climbing

then 120 is your y intercept  

Answer:

Quotient : 3x² + 5x + 1

Step-by-step explanation:

Answer:

Number of free throws =  9

Step-by-step explanation:

Given that:

Kylie made 18% of her free throws.

Number of attempts = 50

Based on the information, she will make out 18% free throws.

Number of free throws = 18% of 50

Number of free throws = [tex]\frac{18}{100}*50[/tex]

Number of free throws = 0.18 * 50

Number of free throws = 9

Hence,

Number of free throws =  9