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uranmaximum [27]
3 years ago
7

Need the answer soon please.

Mathematics
2 answers:
eimsori [14]3 years ago
8 0
I'm not too sure myself (cause Im a learning student myself at the age of 16 and I learn it in a completely different language) I cant really understand c) sorry for my poor english but I think I have gave you enough tips to do c)

kvv77 [185]3 years ago
4 0
Circumference (C) = 2 π r
                       122  = 2 π r
                        61/π = r
Answer to part (b): radius is 61/π ≈ 19.4

Diameter (d) = 2 r
                 d  = 2 (61/π)
                 d  = 122/π
Answer to part (a): diameter is 122/π ≈ 38.8


arc length (s) = r · Ф
THETA MUST BE IN RADIANS!
use the unit circle (or use the proportion π/180°) to discover that 30° = π/6

s = (61/π)·(π/6)
   = 61/6
Answer to part (c):arc length is 61/6




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PLS HELP ASAP PLZ PLZ PLZ
KIM [24]
I am unsure about the very last problem but I can help with the first two

1) (y+1)+4

If we combine the numbers 1 and 4, we get +5 and can isolate the numbers from the variable.

This would give us

y + 5 =

2) (6*r)*7

remember that we do not have to explicitly state 6*r

Instead, we can write it as 6r

this helps us get rid of the parentheses

now we can write it as 6r * 7=

I hope this helps!:)

6 0
3 years ago
A dietitian at a hospital wants a patient to have a meal that has 126 grams of protein, 82 grams of carbohydrates, and 101.5 mil
katovenus [111]
<h3>The dietitian provide 2.5 numbers of salmon steak, 1 baked egg and 2 acorn squash for the patient. </h3>

Step-by-step explanation:

Let

Number of salmon steak = x

Number of baked eggs =y

and Number of acorn squash =z

Total amount of protein that is provided to the patient =40 x +20 y+3 z

Total amount of carbohydrates that is provided to the patient = 20 x+2y +15z

Total amount of vitamin A that is provided to the patient = x+25 y+ 37z

According to the problem,

40x+20y+3z=126,     20x+2y+15z=82    and   x+25y+37z= 101.5

Solving the above equations

we get x= 2.5 ,y= 1 and z=2

So ,  The dietitian provide 2.5 numbers of salmon steak, 1 baked egg and 2 acorn squash for the patient.

4 0
3 years ago
How many solutions are there to the following system of equations?<br> 10x+5y=5<br> 4x+2y=2
umka21 [38]
Infinite..................
3 0
3 years ago
A building casts a shadow that is 50 feet in length. If the distance from the end of the shadow to the top of the building is 25
lozanna [386]

Answer:

The height of the building is of 244.95 feet.

Step-by-step explanation:

We use the Pythagorean Theorem to solve this question.

We have that:

The shadow of 50 feet is one side of the right triangle, while the height h is other side.

The hypotenuse is the distance from the end of the shadow to the top of the building, which is 250 feet.

So

50^2 + h^2 = 250^2

h^2 = \sqrt{250^2 - 50^2}

h = 244.95

The height of the building is of 244.95 feet.

8 0
2 years ago
Simplify the following expression into simplest form with all positive exponents
mamaluj [8]

Answer:

I'm am pretty sure that the answer is 320. Hope this helps!

4 0
3 years ago
Read 2 more answers
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