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3 years ago

Please please help mee

Mathematics

1 answer:

Natali [406]3 years ago

7 0

Answer:

50°

Step-by-step explanation:

The triangle has 7 and 7 on both sides making the sides equal and that means the angle from both corner will be equal.

In a triangle theres 180 degrees and you already have 80 degrees so

180-80=100/2 = 50 for both corners

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−3(y+5)=15 someone please help me with this question my assignment is already late

AnnyKZ [126]

Answer: -10

Step-by-step explanation:

Simplifying

-3(y + 5) = 15

Reorder the terms:

-3(5 + y) = 15

(5 * -3 + y * -3) = 15

(-15 + -3y) = 15

Solving

-15 + -3y = 15

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '15' to each side of the equation.

-15 + 15 + -3y = 15 + 15

Combine like terms: -15 + 15 = 0

0 + -3y = 15 + 15

-3y = 15 + 15

Combine like terms: 15 + 15 = 30

-3y = 30

Divide each side by '-3'.

y = -10

Simplifying

3 0

3 years ago

A jogger is going around a circular track with a radius of 100 ft. Determine the

sweet-ann [11.9K]

Answer:

ω= 0.01 rad/s

Step-by-step explanation:

The given data is question is ,

r = 100ft .
t = 3 min = 180s.

Firstly let's find the linear speed. Which is

=> v = Circumference/time

=> v = 2πr/180s

=> v = 3.14 × 100ft ./ 90

=> v = 3.48 ft/s ≈ 1m/s

Now the angular speed and linear speed are related as follows ,

=> v = r $\omega$

=> $\omega$ = v/r

=> $\omega$ = 1/100

=> $\omega$ = 0.01 rad/s

<h3>Hence the angular speed is 0.01 rad/s.</h3>

3 0

3 years ago

Im working on algebra hw and i need help with this problem 8.1x - 4.5y = 5.4

alexira [117]

8.1x - 4.5y = 5.4.....subtract 8.1x from both sides
-4.5y = -8.1x + 5.4...divide both sides by -4.5
y = (- 8.1/-4.5)x + 5.4 / -4.5...simplify
y = 1.8x - 1.2 <==

7 0

3 years ago

Read 2 more answers

How do i graph this i don’t understand

enot [183]

Answer:

I cant see the question

Step-by-step explanation:

4 0

3 years ago

Assume that we have m coins. We toss each one of them n times. The probability of heads showing up for each coin isp. What’s the

olga nikolaevna [1]

Answer:

$1-(1-p^n)^m$

Step-by-step explanation:

For a coin, the probability of head showing in a single toss is $p$ .

$P(H)=p$

Its complement, the probability of not head is

$P(\Sim H)=1-p$

This is a binomial distribution. In $n$ tosses, the probability of having all heads (i.e. $n$ heads) is

$P(\text{all heads})=\binom{n}{n}p^n(1-p)^0=p^n$

Let's call this value $a$ .

For $m$ coins, we determine the probability of at least 1 coin showing all heads by first finding its complement i.e. the probability of no coin showing all heads. This is also a binomial distribution.

$P(\text{no coin showing all heads})=\binom{m}{0}a^0(1-a)^m=(1-a)^m$

$P(\text{at least 1 coin showing all heads})=1-P(\text{no coin showing all heads})$

$P(\text{no coin showing all heads})=1-(1-a)^m=1-(1-p^n)^m$

8 0

3 years ago

Please please help mee​

Please please help mee