Ask question

Ask question

All categories

3 years ago

11

Help!!! I don’t get this :(

1 answer:

mafiozo [28]3 years ago

7 0

You have to use distributive property. Multiply the numbers outside of the parenthesis by the numbers inside. For example, you would multiply 0.4 by 2x first, then multiply it by 1/2. You should get two answers. Write them down in this form: first answer + second answer. Then do the same for the other side of the equal sign, but leave the - 4 alone. If you need more help, let me know

You might be interested in

Find the area of the image below

DochEvi [55]

Look at the picture.

The area of a parallelogram:

$A_P=5\cdot3=15$

The area of a triangle:

$A_T=\dfrac{1}{2}\cdot5\cdot5=12.5$

The area of the polygon:

[texA=A_P+A_T\\\\A=15+12.5=27.5\ u^2[/tex]

Answer: D. 27.5 square inches /inches?/ I think, correct is units

7 0

3 years ago

3. What is the cost of making 100 burritos?<br> Write your answer in the space below.

mel-nik [20]

Answer:

to answer this question you need to give us the cost to make one burrito

6 0

3 years ago

A circle has a diameter with endpoints at (6, 5) and (8, 5). Write the equation for the circle.

mario62 [17]

Answer:

$(x-7)^2+(y-5)^2=1$

Step-by-step explanation:

The two things that are required to formulate the equation of the circle is the center coordinate and the radius of the circle!

<u>Center of the circle:</u>

The center of the circle always lies at the midpoint of the endpoints of its diameter: Let's call the endpoints A(6,5) and B(8,5).

Using the midpoint formula we'll get:

$(x_m, y_m) = \left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)$

$(x_m, y_m) = \left(\dfrac{6+8}{2},\dfrac{5+5}{2}\right)$

$(x_m, y_m) = (7,5)$

This is the center coordinate of our circle.

<u>Radius: </u>

The radius of the circle is the distance from the center of the circle to any of the endpoints of the diameter (A or B)

We can use the distance formula:

$r = \sqrt{(x_1-x_2)^2+(y_1-y_2)^2}$

$r = \sqrt{(x_1-x_m)^2+(y_1-y_m)^2}$

$r = \sqrt{(6-7)^2+(5-5)^2}$

$r = \sqrt{1^2}$

$r = 1$

<u>Equation of the circle: </u>

The equation is written as:

$(x-a)^2+(y-b)^2=r^2$

here, (a,b) are the center points of the circle

in our case this is $(a,b)=(x_m,y_m)=(7,5)$

and r = 1

$(x-7)^2+(y-5)^2=1^2$

$(x-7)^2+(y-5)^2=1$

This is the equation of the circle!

3 0

3 years ago

Dara has to solve 35 math problems for homework. She has completed 14 of them.what fraction of the problems does she have left t

RSB [31]

Answer: 3/5

Step-by-step explanation: thats your answer.

6 0

3 years ago

A new convenience store wishes to attract customers. For a one-day special, the store sells gasoline for $.25 per gallon below i

lorasvet [3.4K]

Te store loss is 1437.5

8 0

3 years ago