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avanturin [10]
2 years ago
10

2345

Mathematics
1 answer:
IRINA_888 [86]2 years ago
6 0

Answer:

1/16

Step-by-step explanation:

first we find the probability of picking a 2 and then a 5 , then we multiply the two probabilities

probability of picking a 2 on the first time is 1/4 as there is 1 2 and 4 total cards.

the probability of picking a 5 is also 1/4 as there is 1 5 and 4 total cards

so the probability of picking a 2 and then a 5 would be 1/4 * 1/4 = 1/16

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ANSWER BOTH FOR 15 POINTS!!!!
aliya0001 [1]

y = kx is the formula for direct variation

8 = k*20

divide by 20

8/20 =k

divide by 4

2/5 =k

y = 2/5 x

formula:  y = 2/5x

b)  y=2/5x

y = 2/5 *7

y = 14/5

or as a mixed number 2 4/5

6 0
3 years ago
27 millimeters = how many centimeters?
finlep [7]
The correct answer would be 2.7 centimeters. Hope this was helpful, and if so, please give Brainliest. (:
3 0
3 years ago
An airplane flying at an altitude of 2600 m is approaching an airport run away located 56 km away (from the airplane to the run
Brrunno [24]

Given :

An airplane flying at an altitude of 2600 m is approaching an airport run away located 56 km away.

To Find :

The airplane’s angle of decent.

Solution :

Height of plane, h = 2600 m.

Horizontal distance of airplane from vertices is, d = 56 km = 56000 m.

Let, angle of depression is Ф.

So,

tan \ \phi = \dfrac{56000}{2600}\\\\tan \ \phi = 21.54\\\\\phi = 87.34^o

Therefore, the angle of decent is 87.34°.

Hence, this is the required solution.

3 0
3 years ago
What is the length of AC? PLEASE HELP ASAP WILL GIVE BRAINLIEST TY
vladimir2022 [97]

Answer:

2.33 units

Step-by-step explanation:

\tan 25\degree =\frac{AC}{5}\\\\0.46630 = \frac{AC}{5}\\\\AC = 0.46630 \times 5\\AC =2.3315\\AC = 2.33 \: units

7 0
3 years ago
Solve for n: 4n = 2n + 6<br> A. 1<br> B. 2<br> C. 3<br> D. 4<br> E. 12
Bumek [7]
4n-2n=6
2n=6
n=6/2
n=3
Your answer is C. 3
3 0
3 years ago
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