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Using an Equation with Two Variables to Solve a problem
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This isosceles triangle has two sides of equal length, a,
that are longer than the length of the base, b. The
perimeter of the triangle is 15.7 centimeters. The
equation 2e +b-15.7 can be used to find the side lengths.
If one of the longer sides is 6.3 centimeters, what is the
length of the base?
cm
b b
is Activity

Answer:

??????????????????????????

Step-by-step explanation:

Answer:

77 centimeters

Step-by-step explanation:

You have to divide 4389 cm bye 57 cm, and the answer is 77 centimeters.

Answer:

[tex]x= 15[/tex]

Step-by-step explanation:

Francisca's mistake was that when she had an equation [tex]5 = \frac{1}{3} x[/tex] instead of dividing both sides by  [tex]\frac{1}{3}[/tex]  she substracted  [tex]\frac{1}{3}[/tex]  from both sides. So the correct way would be...

[tex]5 = \frac{1}{3} x\\\\(5)(3) = (\frac{1}{3} x )(3)[/tex]

[tex]15 = x[/tex]

Answer:

y = -3x + 5

Step-by-step explanation:

Find the graph attached

The standard form of calculating the equation of a line is expressed as;

y = mx+c

m is the slope

c is the intercept

Using the coordinate points (0, 5) and (1, 2)

m = 2-5/1-0

m = -3/1

m = -3

Get the intercept

Substitute m = -3 and (0,5) into y = mx+c

5 = -3(0) + c

5 = c

c = 5

Get the required equation

Recall that y = mx+c

Substitute the gotten values

y = -3x + 5

Answer:

The correct answer is A 1.83944157

Answer:

A

Step-by-step explanation:

He borrowed money so he has -5 dollars and but he payed 2 back, so now he   needs to pay $3

[tex] \boxed{ \tt{its \: a \: straight \: line \: graph}}[/tex]

Answer:

-25

Step-by-step explanation:

Ignora lo negativo    

  25

3/75

 -6

  15

 -15

    0

Suma el negativo: -25

Answer:

x<7

Step-by-step explanation:

hope this helps :)

Answer:

After he cuts the blocks, the volume is one eight of the original.

Step-by-step explanation:

Volume of a rectangular prism:

The volume of a rectangular prism with dimensions abc is given by:

[tex]V = abc[/tex]

Danny cute the block so that each side is 1/2 it's original length. How do the volumes of the ice block compare?

This means that:

[tex]a = \frac{a}{2}, b = \frac{b}{2}, c = \frac{c}{2}[/tex]

So

[tex]V_c = \frac{a}{2}*\frac{b}{2}*\frac{c}{2} = \frac{abc}{2^3} = \frac{abc}{8} = \frac{V}{8}[/tex]

After he cuts the blocks, the volume is one eight of the original.

Answer: Sorry

Step-by-step explanation: What table? I would love to help you but I need to see the table you are talking about. :(

Answer:

120

Step-by-step explanation:

4+4=8 tell you het to 120

Answer:

161

Step-by-step explanation:

Answer:

y=10+5x

Step-by-step explanation:

Have a great day

Answer:

use math w ay .co m its helps

Step-by-step explanation:

Answer:

I think its B

Step-by-step explanation:

Answer:

(0,4)

Step-by-step explanation:

The Y-axis is the vertical line. The y-intercept is where the function intersects at a point on the Y-axis.

Answer:

Transitions

Step-by-step explanation:

Answer:

0.008

Step-by-step explanation:

0.001

0.046

0.059

0.008

Answer:

i'm sorry i wish i could help :(

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

Answer:

so, i am pretty sure all this is saying is move the plot nine units down the y axis. so you'd plot (5, 7).

Step-by-step explanation:

i hope this helps, let me know if this is right.

Answer: You are incorrect, the slope is correct, but the actual y-intercept is 205 ft.

Then the equation is:

y = (-15 ft/min)*x + 205 ft

Step-by-step explanation:

Ok, let's solve this.

We know that water is drained from a reservoir, let's assume that we can model this situation with a linear relation:

y = a*x + b

Where x is time, y is the height of the water in the reservoir, a is the slope (in this case represents how much changes the height of the water in the reservoir in one unit of time) and b is the initial height of the water in the reservoir.

We know that for a line that passes through the points (x₁, y₁) and (x₂, y₂) the slope is:

a = (y₂ - y₁)/(x₂ - x₁)

For this particular case we know that after 2 minutes the height of the water is 175 ft, then we have the point (2 min, 175 ft)

and after 5 minutes (so 7 minutes in total), the height of the water is 100ft, then: (7 ft, 100ft)

Then the slope of this:

a = (100 ft - 175 ft)/(7 min - 2 min) = (-75ft/5min) = - 15 ft/min

Then our line is something like:

y = (-15ft/min)*x + b

To find the value of b, we can use the fact that when x = 2 min, y = 175 ft

So if we replace these two values in the equation we get:

175ft = (-15 ft/min)*2 min + b

175 ft = -30 ft + b

175 ft + 30 ft = b                  

(here is your problem, it seems like you subtracted instead of adding in this part)

205 ft = b

Then the equation is:

y = (-15 ft/min)*x + 205 ft

So you are incorrect (but only for a little bit), you computed wrong the y-intercept.

Answer:

y=25x - 300

Step-by-step explanation:

she earns 25 dollars for each hour she works and then subtract the amount of money she has to pay for rent and that's how much she makes

Answer:

Yes it is tangent because it is touching a certain point

Step-by-step explanation:

Heres a pic i found of an example and it looks exactly like that one

9514 1404 393

Answer:

  yes

Step-by-step explanation:

The side lengths of the triangle are 5, 12, and 5+8 = 13. We can check to see if they satisfy the Pythagorean theorem, which would indicate a right triangle.

  5² + 12² = 25 +144 = 169 = 13²

These sides do satisfy the relationship between sides for a right triangle, so angle A is a right angle. That is the case when segment AB is a tangent to the circle.

  Yes, AB is a tangent.

Answer:

the answer is A) -2

Step-by-step explanation:

i got a 100%

Answer:

There is no image bajahaahaa

Step-by-step explanation:

Answer:

See Explanation

Step-by-step explanation:

Incomplete question as the function is not given. So, I will give a general solution

Required

Determine the average rate of change from t = 2 to 4

Average rate of change is :

[tex]Rate = \frac{f(b) - f(a)}{b - a}[/tex]

In this case: a = 2 and b = 4

So, we have:

[tex]Rate = \frac{f(4) - f(2)}{4 - 2}[/tex]

[tex]Rate = \frac{f(4) - f(2)}{2}[/tex]

Assume that the exponential function is:

[tex]f(t) = 3^{-t[/tex]

f(4) and f(2) will be:

[tex]\\ f(4) = 3^{-4} = \frac{1}{81}[/tex]

[tex]f(2) = 3^{-2} = \frac{1}{9}[/tex]

So:

[tex]Rate = \frac{f(4) - f(2)}{2}[/tex]

[tex]Rate = \frac{\frac{1}{81} - \frac{1}{9}}{2}[/tex]

Take LCM

[tex]Rate = \frac{\frac{1 - 9}{81}}{2}[/tex]

[tex]Rate = \frac{-\frac{8}{81}}{2}[/tex]

[tex]Rate = -\frac{8}{81}*\frac{1}{2}[/tex]

[tex]Rate = -\frac{4}{81}[/tex]

So, the average rate of change is a decrease of 4/81

Answer:

4

Step-by-step explanation:

b hghvhtgchvivuhfucgu

Answer:

(3) 13.7

Step-by-step explanation:

add 11+12+12+12+12+14+15+17+18=123
then divide 123 divide by 9 and you'll get 13.7