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eimsori [14]
3 years ago
10

Assume that random guesses are made for seven multiple choice questions on an SAT test, so that there are n = 7 trials, each wit

h probability of success
(correct) given by p= 0.45. Find the indicated probability for the number of correct answers.
Find the probability that the number of correct answers is fewer than 4.
P(X<4)=
(Round to four decimal places as needed.)
Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
5 0

Answer:

GIVE BRAINLIEST PLEASE

0.9830 = 98.30%

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Help please this is for my homework that is due to tomorrow!!
Murljashka [212]

The given polygons are similar

Step-by-step explanation:

By observing the given diagrams, we can see that the respective angles are congruent.

Two shapes are said to be similar if they have same shapes or one shape is created by uniformly increasing or decreasing the side of other.

For this purpose we find the scale factor of greater to smaller image, if the scale factor is same for each side then the two shapes are similar

So,

The scale factor is:

\frac{EF}{AB} = \frac{3}{1} = 3\\\\\frac{FG}{BC} = \frac{9}{3} = 3\\\\\frac{GH}{CD} = \frac{15}{5} = 3\\\\\frac{EH}{AD} = \frac{21}{7} = 3

We can see that the scale factor is same for all sides.

Hence,

The given polygons are similar

Keywords: Polygons, similarity

Learn more about polygons at:

  • brainly.com/question/6569012
  • brainly.com/question/6541303

#LearnwithBrainly

5 0
3 years ago
Is this sequence arithmetic, geometric, or neither?<br> 45,50,65,70,85
Usimov [2.4K]
I think it is arithmetic
3 0
3 years ago
The graph below represents the average monthly rainfall (y), in inches, in
White raven [17]

Answer:

The amount of rainfall increases as an exponential function of time.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Which of these problem situations could best be modeled by the equation below? 52(18) + x = 1200 Debbie sold 52 boxes of fruit f
kirill [66]

Answer:

a) Debbie sold 52 boxes of fruit for $18 each plus a bonus x, for selling the boxes quickly. Find x, the bonus if Debbie sold the fruit quickly and earned $1200.

Step-by-step explanation:

The model equation is given as:

52(18) + x = 1200

a) Debbie sold 52 boxes of fruit for $18 each plus a bonus x, for selling the boxes quickly. Find x, the bonus if Debbie sold the fruit quickly and earned $1200.

52($18) + x = $1200

52(18) + x = $1200

Option a is correct

b) Katrina earned $18 plus a weekly bonus x, for managing her money wisely each week for 52 weeks. Find x, if Katrina earned $1200.

x = weekly bonus, hence, we have the equation:

$18 + (x)52 = $1200

Option b is wrong

c) Marissa has $52 in her savings account. She earns $18 for each lawn she mows. Find x, the number of weeks she needs to mow lawns in order to have a total of $1200.

This is represented as:

$52 + $18(x) = $1200

Option c is wrong

d) Edward had a balance of $52 in the bank. He added x dollars to his account last month. This week he deposited another $18. Find x, the amount Edward deposited in the bank last month if his total savings is now $1200.

This is represented as :

$52+ $x + $18 = $1200

Option d is wrong.

Therefore, the correct statement that modelled the equation is option a

5 0
3 years ago
DO THIS FOR 100 POINTS AND MARKED AS BRAINLIEST
Allushta [10]

Convert to common denominator

3/4 = 12/16

Multiply by 16

(12/16)/(3/16)

12/3

Your answer is 4.

⭐ Please consider brainliest! ⭐

✉️ If any further questions, inbox me! ✉️

8 0
4 years ago
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