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sergejj [24]
3 years ago
11

Brainliest to whoever answers find the volume of the figure down below

Mathematics
2 answers:
serg [7]3 years ago
4 0

Answer:

i think it is 87 because

andreev551 [17]3 years ago
4 0
I think the answer would be 5162 because
First we would need to find the volume of the cube.
To find volume we do 21x18x13 and get 4914
Next we need to find the area of the two triangles. So to find the area of the triangle we do 16 times half of 18 so 16x9= 72 (we also have to divide 72 by two but we won’t because there is two triangles, to find area of one triangle divide 72 by 2 but we have two triangles.)
Next we do the other triangle on the right side. So 16 x (.5 x13)= 104 (104 is the total for two triangles)
Now we add all of our areas together and get 4914
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A waitress sold 11 ribeye steak dinners and 18 grilled salmon dinners, totaling 592.29 on a particular day. Another day she sold
Rina8888 [55]

Let the cost of 1 ribeye steak dinner = x

The cost of 1 salmon dinner = y

Then,

11x + 18y = 592.29   (1)

16x + 6y = 580.56   (2)

Multiplying the second equation by 3, we get,

48x + 18y = 1741.68   (3)

(3) - (1) gives

37x = 1149.39

x = 31.06

Substituting the value for x in (1), we get,

11(31.06) + 18y = 592.29

341.66 + 18y = 592.29

18y = 250.63

y = 13.92

Hence, the cost of ribeye steak dinner = 31.06 and the cost of grilled salmon dinner = 13.92.

8 0
3 years ago
Jonas and Mallory are selling bags of cotton candy at the football game. They get paid $20 per game in $2.25 for each bag of cot
Olegator [25]

Answer:

41 bags.

Step-by-step explanation:

4 0
3 years ago
What is 55% of 75<br> Pls show the work !<br> I really need help
Ahat [919]
75 (your whole) / .55 (percentage) =41.25
4 0
3 years ago
Please help I’m really confused and need to learn this
egoroff_w [7]

Answer:

2.

Step-by-step explanation:

For #2, another way to word this question is: For which of the following trig functions is π/2 a solution? Well, go through them one by one. If you plug π/2 into sinθ, you get 1. This means that when x is π/2, y is 1. Try and visualize that. When y is 1, that means you moved off the x-axis; so y = sinθ is NOT one of those functions that cross the x-axis at θ = π/2. Go through the rest of them. For y = cos(π/2), you get 0. At θ = π/2, this function crosses the x-axis. For y = tanθ, your result is undefined, so that doesn't work. Keep going through them. You should see that y = secθ is undefined, y = cscθ returns 1, and y = cotθ returns 0. If you have a calculator that can handle trig functions, just plug π/2 into every one of them and check off the ones that give you zero. Graphically, if the y-value is 0, the function is touching/crossing the x-axis.

Think about what y = secθ really means. It's actually y = 1/(cosθ), right? So what makes a fraction undefined? A fraction is undefined when the denominator is 0 because in mathematics, you can't divide by zero. Calculators give you an error. So the real question here is, when is cosθ = 0? Again, you can use a calculator here, but a unit circle would be more helpful. cosθ = π/2, like we just saw in the previous problem, and it's zero again 180 degrees later at 3π/2. Now read the answer choices.

All multiples of pi? Well, our answer looked like π/2, so you can skip the first two choices and move to the last two. All multiples of π/2? Imagine there's a constant next to π, say Cπ/2 where C is any number. If we put an even number there, 2 will cut that number in half. Imagine C = 4. Then Cπ/2 = 2π. Our two answers were π/2 and 3π/2, so an even multiple won't work for us; we need the odd multiples only. In our answers, π/2 and 3π/2, C = 1 and C = 3. Those are both odd numbers, and that's how you know you only need the "odd multiples of π/2" for question 3.

6 0
3 years ago
What is the Volume of the prism? ​
Andru [333]

Answer:

296.4cm

Step-by-step explanation:

you do 9.5cm x 5.2cm x 6cm = 296.4cm

8 0
2 years ago
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