how do you find the area of triangle?

Answer:6

Step-by-step explanation:

By going on a calculator and typing 81 then click divide then press 13.5

well combine like terms

-3x = -21

divide both sides by -3

x = 7

Answer:

x = 7

Step-by-step explanation:

-6x + 3x = -21

Combine like terms

-3x = -21

Divide by -3

-3x/-3 = -21/-3

x = 7

Answer:

8 days where raining out of 10. means 2 days where not raning so 8 days where raning and 2 was not.

Answer:

you should try m a t h w a y it would help with math questions

Answer:

x=-3

Step-by-step explanation:

I did it with the parenthesis to make it easier so..

First, divide 16 and 4

All is left is x+7=4

Subtract 4 and 7

And the answer should be -3.... Hope this helped! If this is not the answer, I'm sorry but it's ok.

Step-by-step explanation:

Hello!!!

I can understand how you feel about this. I hope to do my best in helping you understand quadrant numbering and signs.

Now for the number start form the top right and move counter-clockwise, that is

Top right =1st quadrant

Top left = 2nd quadrant

Bottom left = 3rd quadrant

Bottom right =4th quadrant

Basically moving counter-clockwise you will get this

Now for the sign convection

Up and right are both positive

Down and left are both negative.

I hope this helps. Don't forget to let me know should you need any further assistance.

Regards.

Answer:

A +7= F

Step-by-step explanation:

A is his current age, and he gains, or adds seven years he will be F or his future age.

Answer:

35

Step-by-step explanation:

If it hasn't started X would be 0 so it be 35+45(0) that would give you 35.

Answer:

9.49525

Step-by-step explanation:

You have the total and the percent so you are looking for the part. You can set up a proportion with 9.5 over 100 and x over 99.95. Then you multiply 9.5 times 99.95 to get 949.525 which then you divide by 100. So x is 9.49525

Answer:

x = A / ( 4y)

Step-by-step explanation:

A = 4xy

Divide each side by 4y

A/ ( 4y) = 4xy/4y

A / ( 4y) = x

Answer:

Aprox. 2.7686 meters

Step-by-step explanation:

Divide 109 by 39.37 and you have your answer.

Answer:

59944

Step-by-step explanation:

30 x 50 x 40 = 60000 - 56 = 59994

Answer:

E': (-3, 3)

F': (-1, 2)

G': (0,0)

H': (-2, 1)

Step-by-step explanation:

Answer:

song of mulan

Step-by-step explanation:

why my reflection show who I am insidee

Answer:

I think it would be reflection because those triangles look very similar if not im sorry

Step-by-step explanation:

Brainlist maybe?

60-30=30×40=70-80=-10

if the number of negatives are even they are always positive. if the number is odd of negatives. it always is negative. -- = + --- =-

✽ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ✽

➷ [tex]\boxed{-10}[/tex]

[tex]60+(-30)+40-80[/tex]

[tex]= 30 + 40 - 80[/tex]

[tex]= 70 - 80[/tex]

[tex]= -10[/tex]

✽

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ May ♡

Answer:

7^3

Step-by-step explanation:

Copied mandhizulfiquar

Answer:

The lines are perpendicular. Option B.

Explanation:

Equation of the Line

One of the characteristics of the line is its slope. It can be determined in two ways:

* From the equation y=mx+b, the m is the slope. The given equation is y=4x-5. Thus, the slope of this line is m=4.

* Suppose we know the line passes through points A(x1,y1) and B(x2,y2). The slope can be calculated with the equation:

[tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]

The points are (3,4) and (7,3), thus the slope is:

[tex]\displaystyle m=\frac{3-4}{7-3}=-\frac{1}{4}[/tex]

A. For two lines to be parallel, their slopes must be equal. Since m1=4 and m2=-1/4, the lines are not parallel. Incorrect

B. For two lines to be perpendicular, their slopes must meet the condition:

[tex]m1*m2=-1[/tex]

4*(-1/4)=-1

Both lines are perpendicular. Correct choice

D. Since choice B. is correct, this cannot be true. Incorrect

Answer:

12

Step-by-step explanation:

The number of cookies that are left unsold if they work from 6:00 AM until noon is 12.

Cookies baked per hour by Christine = 20*2 =40

Cookies sold per hour by Charlie = 38

There will be 6 hours between 6:00 AM and noon.

So, Cookies baked by Christine in 6 hours = 40*6 =240

Cookies sold by Charlie in 6 hours = 38*6 =228

Number of unsold cookies =240-228 =12

Hence, the number of cookies that are left unsold if they work from 6:00 AM until noon is 12.

To get more about such word problems visit:

https://brainly.com/question/21405634

a = -1/2

Hope this helps :)

Answer:

a = -1/2

Step-by-step explanation:

-1/4a - 4 = 7/4a - 3

-a/2^2 - 4 = 7/ 2^2 a - 3

(-a) - ( 2^2) 4 / 2^2 = 7a/ 2^2 - 3

a = -1/2

I know this confusing but this how I got the answer.

I hope this helps

Answer:

f(x)=x^3-13x-12

Step-by-step explanation:

Answer:

a = 14.73

Step-by-step explanation:

This ratio can also be written like this:

[tex]\frac{a}{27} = \frac{6}{11}[/tex]

Then you can cross multiply to get

11a = 6 x 27

11a = 162

Divide both sides by 11

11a / 11 = 162 / 11

a = 14.73

Answer:

C-All real numbers less than or equal to 40

Step-by-step explanation:

none of the other answers make any sense

Answer:

a variable is isolated by using the many properties.

these are addition, subtraction, division, and multiplication

Step-by-step explanation:

hope this helps!

Answer:

Irrational

Step-by-step explanation:

Pi is and irrational number

Answer:

80+ 0.3x = 60 + 0.4x

20 = 0.1x

x = 200

Therefore, at 150 miles, the best deal changes companies

Step-by-step explanation:

Answer:

translate left 2, down 3

Step-by-step explanation:

^^^

Answer:

y=-8x-2

Step-by-step explanation:

Answer:

48 is 19.7 more than 28.3

Step-by-step explanation:

You just subtract 48 - 28.3

A key word is THAN which hints that you need to subtract. MORE indicates addition which means it is 48 is +19.7 more than 28.3

Answer:

x = 55

Step-by-step explanation:

x+(x+1)+(x+2)=168

3x+3=168

3x=165

x=55

Answer:

y=-1/3x-5

Step-by-step explanation: