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3 years ago

100 points plz help fasttt

Mathematics

2 answers:

Gekata [30.6K]3 years ago

5 0

Angle 1 is 60 because angle 2 and 3 add up to 90. 2 is vertical to 30 degrees. Vertical angles are congruent(equal). 90-30=60

prohojiy [21]3 years ago

3 0

Answer:

Step-by-step explanation:

Complementary angles are 2 angles when added together = equal 90 * degrees.

The verticle angles theorem states angles opposite each other are the same degree*.

30* degrees is opposite angle 2 .

So angle 2 = 30* too

angle 2 and 3 together +equal 90* degree.

90 - 30 (angle 2) = 60*

Angle 3 is 60*

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enyata [817]

Answer:

Step-by-step explanation:

6 0

3 years ago

a fan is marked up 40% on the original price the original price was $20 what is thevnew price if the fan before sales tax

alukav5142 [94]

28 dollars is the new price

5 0

3 years ago

After 5 throws in a game of darts, Brent's mean score was 32. Calculate his total score.

ehidna [41]

1.To know this answer, we need to know some vocabulary that's used in t. Most people don't know how to solve questions if they have hard Vocabulary and what the question is Asking

Mean=The average of all his throws

It's asking us to calculate his total score

2. Find Clues to help you solve word problems

Finding clues in Word Problems is a very important part a lot of people skip but this helps you solve the question easier

5 throws and Mean Score is 32 are the clues

3. Guess and check

The method to this thingy is called guess and check. There is another method which is slightly harder and i just don't want to do it.

Let's just say his scores were... 5, 6, 4, 5,10Add them up and you get 30Then 30/5

Let's try bigger numbers

20+25+20+20

If you like this method, you may try it another method is called work Backwards

5x32=160

Then divide 160 by 5 to double check and you get 32!!

========================================

Therefore, the answer s 160 as his total score

hope this gives you a clue to what we are doing and when you have a question like this, I really hope you understand the concept

Hope this helped (:

5 0

3 years ago

An object in shm oscillates with a period of 4.0s and an amplitude of 11 cm . part a how long does the object take to move from

Alika [10]

If the Amplitud is 11×2=22cm and the wave was in shm then we can get the wavelength as 11×2=22s.
From the wave equation,

v=fλ Where v⇒speed
f⇒frequency and
λ⇒Wavelength

And we know that;
f=1/T
f = 1/4 =0.25 Hz
∴v = 0.25 ×22 = 5.5 cm/s

Since we know know the speed of the object we can get its time it takes from (0-6.5) cm.

v = fλ = λ/T

∴T = λ/v
= 6.5/5.5
= 1 2/11
= 1.181818s

The time taken for the object <span>to move from x = 0.0 cm to x = 6.5 cm is </span>1.181818s

5 0

4 years ago

A bike and skate shop rents bikes for $21 per day and pairs of skates for $20 per day. To remain viable, the shop needs to make

Mariana [72]

The first step to solving this problem is to write an equation to express the parameters of the problem. The equation is expressed as this:

$62x = 362$

You can arrive at this equation by taking the ratio of 2 bike rentals and 1 skate rental and adding up the sum of all the purchases.

$21 \times 2 + 20 = 62$

This makes x equal to making 2 bike rentals and 1 skate rental. If we solve the original equation for x, the result is 5.838. Since we need to be above 362 dollars, we can round up to x = 6. This translates to 12 bike rentals and 6 skate rentals. Finally, we arrive at the answer of 6 skate rentals.

8 0

3 years ago