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3 years ago

True or False. (0,0) is a solution to problem #1. This means that (0,0) is in the solution region.

Mathematics

1 answer:

Oksana_A [137]3 years ago

5 0

True.

A point that is a solution is in the solution region.

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Please help with this question!!

Goshia [24]

Answer:C

Step-by-step explanation:

4 0

3 years ago

9x (-2y + 5x) - 4 xy (6x-3y) please the person who answers will be marked as brainliest. please show working

Alenkasestr [34]

Answer:

See explanation

Step-by-step explanation:

$9x(-2y+5x)-4xy(6x-3y)$

By the distributive property this is equal to:

$9x(-2y)+9x(5x)-4xy(6x)-4xy(-3y)=\\\\-18xy+45x^2-24x^2y+12xy^2$

Hope this helps!

4 0

3 years ago

"A new bakery offers decorated sheet cakes for children’s birthday parties and other special occasions. The bakery wants the vol

Darya [45]

Answer:

$w = 9 \text{ inches}\\l = 13\text{ inches}\\h = 3\text{ inches}$

Step-by-step explanation:

We are given the following in the question:

Volume of cake = 351 cubic inches

Let x inches be the width of cake.

Width of cake, w =

$x\text{ inches}$

Then, length of cake,l =

$(x + 4)\text{ inches}$

Height of cake,h =

$\dfrac{x}{3}\text{ inches}$

Volume of cake = Volume of cuboid

$V = lwh$

Putting values, we get:

$351 = x(x+4)(\dfrac{x}{3})\\\\1053 = x^3 + 4x\\x^3+4x^2-1053= 0\\\\\text{For x = 9}\\(9)^3+4(9)^2-1053= 0$

Thus, dimensions of cake are:

$w = 9 \text{ inches}\\l = 13\text{ inches}\\h = 3\text{ inches}$

3 0

3 years ago

Davies knows that the area of his square-shaped bag is 81 feet^2. what is the length of any side of the bag?

11Alexandr11 [23.1K]

If it's a square all sides are 9 feet...9x9=81

8 0

3 years ago

Find the length of the missing side please help

kozerog [31]

Step-by-step explanation:

7. Since they are similar triangles we have:

$\frac{10}{8} = \frac{x}{12} \\ \\ x = 15$

So DF is 15

8. They are also similar. So:

$\frac{14}{7} = \frac{x}{5} \\ x = 10$

So PR is 10

7 0

2 years ago