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2 years ago

Given triangle ABC with m M

Mathematics

1 answer:

sammy [17]2 years ago

6 0

9514 1404 393

Answer:

49°

Step-by-step explanation:

The sum of angles in a triangle is 180°.

∠A +∠B +∠C = 180

(x +32) +(x +41) +(3x +22) = 180 . . . . angles assumed to be in degrees

5x +95 = 180

5x = 85

x = 17

x +32 = 49 . . . . measure of ∠A

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HELPPPP ME PLEASEEEE!!!!

Ray Of Light [21]

Answer:

A. 8 units

Please give me brainliest!!

Step-by-step explanation:

The perimeter of an octagon will be 8 times the length of one side, segment LS. We assume that point S is also located at (0, 1), so is 1 unit away from point L.

7 0

3 years ago

Read 2 more answers

Everyday Jo practices her tennis serve by continually serving until she has had a total of 50 successful serves.

Natasha2012 [34]

Answer:

To reach her goal in the first 100 serves she has to have 50 successful services. This happens with a probability of 2%.

That means she has 98% chances of needing more than 100 serves to reach her goal.

Step-by-step explanation:

The condition for Jo to need more than 100 serves is that she do not accomplish 50 successful serves in 100 tries.

We have a probability sample of possible results that hass a binomial distribution, with n=100 and p=0.4.

As n is large enough, we will approximate it with a normal distribution. The parameters of the normal distribution are:

$\mu=np=100\cdot0.4=40\\\\\sigma=\sqrt{np(1-p)}=\sqrt{100\cdot0.4\cdot0.6}=\sqrt{24}=4.9$

We need the to calculate the probability that the amount of successful services is less than 50, so that she needs more than 100 serves. This is:

$P(X$

We calculate the z value for X:

$z=(X-\mu)/\sigma=(50-40)/4.9=2.04$

Then we have

$P(X$

That means that there is 98% probability that she will need more than 100 serves to reach her goal.

4 0

2 years ago

I am so dumb can you solve me this question PLEASE

docker41 [41]

Answer:

I will just go down the table:

7.47 rounds to 7

8.367 rounds to 8

7.8 rounds to 8

7.352 rounds to 7

8.53 rounds to 9

7.51 rounds to 8

Step-by-step explanation:

6 0

2 years ago

Write N as a discrete exponential function of t of the form N(t)=A(1+r)t. (HINT: You will need to find (1+r), where r is the rat

Whitepunk [10]

Answer:

$N(t)=84(1+0.0405)^t$ .

Step-by-step explanation:

We have been given that $N(11)=130$ and $N(0)=84$ . We are asked to write N as a discrete exponential function of t of the form $N(t)=A(1+r)^t$ .

Using our given information, we can set an equation as:

$N(0)=A(1+r)^0$

$84=A*1$

$84=A$

Using our given information, we will get:

$N(11)=A(1+r)^{11}$

Substitute the given values:

$130=84(1+r)^{11}$

$\frac{130}{84}=\frac{84(1+r)^{11}}{84}$

$1.5476190476190476=(1+r)^{11}$

Switch sides:

$(1+r)^{11}=1.5476190476190476$

Take 11th root of both sides:

$\sqrt[11]{(1+r)^{11}}=\sqrt[11]{1.5476190476190476}$

$1+r=1.04050024747304$

$r=1.04050024747304-1$

$r=0.04050024747304$

$r\approx 0.0405$

Therefore, our required function would be $N(t)=84(1+0.0405)^t$ .

5 0

2 years ago

What is the slope-intercept form equation of the line that passes through (2, 4) and (4, 10)?

Alika [10]

The answer is y = 3x - 2. To find slope, you subtract y2 - y1 and x2 - x1. In this case, y2 - y1 = 10 - 4 and x2 - x1 = 4 - 2. You would result in 6/2, which can be reduced to 3. Your slope is 3, so the first and second answer automatically are eliminated. Next, you could either draw it out on a coordinate plane or just visualize it. The starting point that goes through each line would be -2, which means D, or y = 3x - 2, is the correct answer.

7 0

1 year ago