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marissa [1.9K]
3 years ago
8

1)

Mathematics
1 answer:
raketka [301]3 years ago
5 0

Answer:

Step-by-step explanation:

Area of one face = 3×3 = 9 m²

A cube had six faces, so surface area of cube = 6×9 = 54 m²

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Please help with algebra
Nataliya [291]

Using the Fundamental Counting Theorem, it is found that there are 90 ways to choose the three side dishes.

<h3>What is the Fundamental Counting Theorem?</h3>

It is a theorem that states that if there are n things, each with n_1, n_2, \cdots, n_n ways to be done, each thing independent of the other, the number of ways they can be done is:

N = n_1 \times n_2 \times \cdots \times n_n

In this problem:

  • For the vegetable, there are 5 options, hence n_1 = 5.
  • For the starch, there are 3 options, hence n_2 = 3.
  • The remaining dish is free, which means that there are 5 + 3 - 2 = 6 options, hence n_3 = 6.

Then:

N = 5 x 3 x 6 = 90.

There are 90 ways to choose the three side dishes.

More can be learned about the Fundamental Counting Theorem at brainly.com/question/24314866

4 0
2 years ago
If you were asked to load 225 bixes on a truck , and boxes are crated. With each nine boxes how many crates would you need to lo
Lubov Fominskaja [6]
225 divided by 9 to figure out the number of crates needed.
225/9=25

So 25 crates are needed to load all boxes on the truck.
4 0
4 years ago
A camera has a listed price of $691.99 before tax. If the sales tax rate is 9.75%, find the total cost of the camera with sales
Alja [10]
You will first change the percentage into a decimal. This will turn out to be 0.0975. Next, you take that decimal and do 691.99 times 0.0975. You will then get 67.46902... You then add that number with 691.99. That is the answer. You should get 759.46. (This is rounded to the nearest cent.
8 0
3 years ago
Read 2 more answers
Which shows the correct substitution of the values a, b, and c from the equation 0 = – 3x2 – 2x + 6 into the quadratic formula?
lbvjy [14]

Answer:

x = StartFraction negative

(negative 2) plus or minus StartRoot (negative 2) squared minus 4 (negative 3)(6) EndRoot Over 2(negative 3) EndFraction

Step-by-step explanation:

0 = – 3x2 – 2x + 6

It can still be written as

– 3x2 – 2x + 6 =0

Quadratic formula=

-b+or-√b^2-4ac/2a

Where

a=-3

b=-2

c=6

x= -(-2)+ or-√(-2)^2-4(-3)(6)/2(-3)

x = StartFraction negative

(negative 2) plus or minus StartRoot (negative 2) squared minus 4 (negative 3)(6) EndRoot Over 2(negative 3) EndFraction

8 0
3 years ago
Which equation is represented by the graph below?
Nataliya [291]
The y-intercept is at 6.
The slope of the line is 2/3.

The answer is y = 2/3x + 6, so the 3rd option is correct.
7 0
3 years ago
Read 2 more answers
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