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motikmotik
2 years ago
6

Select the correct answer

Mathematics
1 answer:
Airida [17]2 years ago
6 0
A because I said so. And trust your boy
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the area of a right triangle is 77 m^2. the hypotenuse has a length of √317 m. what is the length of the legs?​
Alexxandr [17]

Answer:

11 m and 14 m

Step-by-step explanation:

Legs: x and y

---

1/2xy= 77  ⇒ xy= 154

√x²+y²= √317 ⇒ x²+y²=317

x²+y²+2xy= (x+y)²= 2*154+317= 625 ⇒ x+y= √625= 25

x= 25-y

xy=154 ⇒  y(25-y)= 154 ⇒ 25y- y²=154 ⇒ y²- 25y +154=0 ⇒ y=11 and y=14

x= 25-y= 14 and 11

4 0
4 years ago
The​ half-life of radium is 1690 years. If 20 grams are present​ now, how much will be present in 250 ​years?
Aneli [31]

Answer:

  18.05 g

Step-by-step explanation:

The multiplier of the initial quantity is ...

  (1/2)^(t/1690)

so, for t=250, this becomes ...

  (1/2)^(250/1690) ≈ 0.902545

Then the quantity remaining of the initial 20 g is ...

  (20 g)(0.902545) ≈ 18.05 g

3 0
4 years ago
A 5-pack of baseball caps costs $5.18. What is the unit price?
svlad2 [7]

Answer:

5.18÷5=1.036 so round up to 1.04

5 0
3 years ago
Read 2 more answers
Hellpppp pleasssssssssssse!!!!!!!!!! WILL GIVE BRAINLIEST!!!!!!
Sati [7]
Slope = 70,000
point: (8,2000000)
Form: y = mx + b
2000000 = 70,000*8 + b
b = 3.57
EQUATION:
Profit = 70,000(year after 1990) + 3.57
5 0
3 years ago
Read 2 more answers
What is the product of 47.55(8.4)?
Gre4nikov [31]

Answer:

399.420

Step-by-step explanation:

1) Use the algorithm method.

4 7 . 5 5

×     8 . 4

1 3  2 2

1 9 . 0 2 0

3 6 4  4  

3 8 0 . 4 0 0

3 9 9 . 4 2 0

2) Therefore, 47.55\times 8.4=399.420.

399.420

5 0
2 years ago
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