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irinina [24]
3 years ago
15

Can someone give me the answers for these?

Mathematics
1 answer:
Alinara [238K]3 years ago
5 0
I think the first one is ( C :3 ) and the other one is B 2
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In ΔIJK, k = 57 inches, i = 37 inches and ∠J=141°. Find ∠I, to the nearest degree.
Sonbull [250]

Answer:

<I= 15degrees

Step-by-step explanation:

Using the cosine rule formulae;

j² = i²+k²-2i cos <J

j² = 37²+57² - 2(37)(57)cos <141

j² = 1369+ 3249- 4218cos <141

j² = 4618- 4218cos <141

j² = 4618-(-3,278)

j²= 7,896

j = √7,896

j = 88.86inches

Next is to get <I

i² = j²+k²-2jk cos <I

37² = 88.86²+57² - 2(88.86)(57)cos <I

1369 = 7,896.0996+ 3249- 10,130.04cos <I

1369 = 11,145.0996 - 10,130.04cos <I

1369 - 11,145.0996 = - 10,130.04cos <I

-9,776.0996=- 10,130.04cos <I

cos <I =9,776.0996 /10,130.04

cos<I = 0.96506

<I = 15.19

<I= 15degrees

8 0
3 years ago
The volume of a rectangular prism is 210 cubic meters. The rectangular base is 5 meters by 6 meters. What is the height of the p
Ksenya-84 [330]

Answer:

7

Step-by-step explanation:

V = base x height

base = 5 x 6

5 x 6 = 30

V = 210

H = V/Base

H = 210/30

210/30 = 7

H = 7

5 0
2 years ago
What value of x is in the solution set of 9(2x + 1) &lt; 9x – 18?
fredd [130]
To solve these kinds of problems, it is necessary to isolate x:

9(2x + 1) <span>< 9x - 18

Distribute 9:
18x + 9 </span><span>< 9x - 18

Subtracting 9 from both sides of the equation:
18x + 9 - 9 </span><span>< 9x - 18 - 9
18x </span><span>< 9x - 27

Subtracting 9x from both sides of the equation:
18x - 9x </span><span>< 9x - 27 - 9x
9x </span><span>< -27

x </span><span>< -3

Therefore, values of x </span><span>< -3 will satisfy the given equation.</span>
7 0
3 years ago
$0.25 per minute for the first 400 minutes. Write the function that models
Ratling [72]

Answer:

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A 1000-millimeter intravenous bag is attached to patient with s tube and is empty after 8hours. At what rate dose the solution f
Andrei [34K]
That should be 1,000 MILLILITER bag.

1,000 ml per 8 hours =
125 ml per hour


8 0
4 years ago
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