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Delicious77 [7]
2 years ago
12

ILL GIVE BRAINIEST

Mathematics
2 answers:
sineoko [7]2 years ago
5 0

Answer:

The equation in point-slope form of the line passing through (-4,2) with slope, m = 4 is 4x - y = 62

Olenka [21]2 years ago
3 0

Answer:

y=4x+18

Step-by-step explanation:

y=mx+b

2=4(-4)+b

2=-16+b

b=18

y=4x+18

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50 POINTS!!!!!!
spin [16.1K]
Answer:
The experimental probability is 1/6, and the theoretical probability is 1/4. The theoretical probability is greater than the experimental probability in this trial.
-------------------
Explanation:

Theoretical probability is the mathematically calculated probability of the circumstances occurring. 

There is a 1/2 chance of rolling an even number, and a 1/2 chance of flipping a coin on heads.

Since the question asks for the possibility of both happening, multiply those together to find the probability:

\frac{1}{2} *   \frac{1}{2} =  \frac{1}{4}

The theoretical probability of rolling an even number and then flipping a head is 1/4.

Now we'll focus on Taka's trials.

Experimental probability is the probability that is taken from results of a trial.

Take the results, and see if they match the criteria of rolling an even number and flipping heads.

The results that are bolded fit the criteria:
<span>1 H, 4 T, 1 H, 5 T, 2 H, 3 T, 6 T, 2 H, 3 T, 5 T, 3 H, 4 T
</span>
Taka managed to roll and flip the coin to fit the criteria 2 times out of 12. Converted into a fraction, it is 2/12. Simplified, the experimental probability is 1/6.
3 0
3 years ago
Cassidy has saved $8,000 this year in an account that earns 9% interest annually. Based on the rule of 72, it will take about ye
den301095 [7]

Answer:

The number of years in which saving gets double is 8 years .

Step-by-step explanation:

Given as :

The principal amount saved into the account = p = $8,000

The rate of interest applied = r = 9%

The Amount gets double in n years = $A  

Or, $A = 2 × p = $8,000 × 2 = $16,000

Let the number of years in which saving gets double = n years

Now,<u> From Compound Interest method</u>

Amount = Principal × (1+\dfrac{\textrm rate}{100})^{\textrm time}

Or, 2 × p = p × (1+\dfrac{\textrm r}{100})^{\textrm n}

Or, $16,000 = $8,000 × (1+\dfrac{\textrm 9}{100})^{\textrm n}

Or, \dfrac{16,000}{8,000} = (1.09)^{n}

Or, 2 = (1.09)^{n}

Now, Taking Log both side

Log_{10}2 = Log_{10} (1.09)^{n}

Or, 0.3010 = n × Log_{10}1.09

Or, 0.3010 = n × 0.0374

∴ n = \dfrac{0.3010}{0.0374}

I.e n = 8.04 ≈ 8

So, The number of years = n = 8

Hence, The number of years in which saving gets double is 8 years . Answer

8 0
3 years ago
The question is about trigonometry solving two sides it is a right triangle hypotenuse is X left side is 20 bottom side is 21 i
elena55 [62]

Answer:

x = 29

Angle A = 46.4°

Angle B = 43.6°

Step-by-step explanation:

Since it is a right angle triangle, we can find x from pythagoras theorem;

x = √(20² + 21²)

x = √(400 + 441)

x = √841

x = 29

Using trigonometric ratios we can find angles A and B.

Opposite is 20

Adjacent is 21

Thus; opp/adj = tan B

20/21 = tan B

B = tan^(-1) 0.9524

B = 43.6°

Sum of angles in a triangle is 180°. Thus;

A = 180 - (90 + 43.6)

A = 46.4°

4 0
3 years ago
What is the difference between y=-2x+3 and the equation in the problem: y = -1.5x + 3?
Ostrovityanka [42]

Answer:

The slope would be different

Step-by-step explanation:

The value by the x is different in both equations while everything else is the same

5 0
3 years ago
Read 2 more answers
What are the first and last terms of this geometric series
11Alexandr11 [23.1K]
ANSWER

E. 10 and 640


EXPLANATION


The given series is

\sum_{i=1}^45 \times 2^{2i-1}


To find the first term of the series we substitute i=1 to get,


a_1 = 5 \times  {2}^{2 \times 1 - 1}


a_1 = 5 \times  {2}^{ 1}  = 10



For the last term of the series, we substitute i=4 to obtain,

a_4 = 5 \times  {2}^{2 \times 4 - 1}


a_4 = 5 \times  {2}^{7}



This implies that,


a_4 = 5 \times  128 = 640


Therefore the correct answer is E
7 0
3 years ago
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