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3 years ago

A sweatshirt that was originally priced at $42.50 has been marked down to $34.00.

Mathematics

1 answer:

Arte-miy333 [17]3 years ago

5 0

Answer:

the answer is 20%.

Step-by-step explanation:

all you have to do is multiply 42.50x.20 and it gives you 8.5. to check your answer you subtract 34.00 from 42.50 and you get 8.5 as well. hope this helps!

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Please help need it for school and need 20 characters which is like really but pls help solve

vampirchik [111]

$a^{log_a(b)}=b$ also
$ln=log_e$

$e^{2x-3}=11$
take the ln of both sides
2x-3=ln(11)
add 3 to both sides
2x=3+ln(11)
dividie both sides by 2 or times 1/2
x=1.5+0.5ln(11) or $x= \frac{3}{2}+ln \sqrt{11}$

3 0

3 years ago

Anybody good in geometry!?

crimeas [40]

7th:

Y + 128° = 180° (Linear Pair)

Y = 180 - 128 = 52°

You're welcome...Please mark as brainliest 

au revoir madame

5 0

3 years ago

Read 2 more answers

Help me jim! geometry homework

Maksim231197 [3]

Question 1

The angles 52 degrees match up. So if the sides are in proportion, then the triangles are similar.

Notice how 8/12 = 18/27 is a true equation. So the sides are in proportion to one another.

Therefore, the triangles are similar. I used the SAS similarity theorem.

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

Question 2

Let's find the missing angle of the triangle on the right. For now, make that missing angle to be x.

Rule: For any triangle, the three angles always add up to 180

x+70+32 = 180

x+102 = 180

x = 180-102

x = 78

The missing angle of the triangle on the left is 78 degrees

Repeat for the other triangle as well

y+78+32 = 180

y+110 = 180

y = 180-110

y = 70

Both triangles have the angles 32, 70, 78 in whatever order you wish.

Since the angles match up like this, the triangles are similar because of the AA Similarity theorem

Technically, we only need 2 pairs of congruent angles at minimum. But having 3 congruent pairs doesn't hurt either.

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

Question 3

We have a pair of congruent 54 degree angles shown. There's another pair of angles at the very top that overlap (aka shared angles).

Since we have two pairs of congruent angles, the two triangles are similar.

This time we use the AA Similarity theorem

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

Question 4

Let's divide the longest side of the bottom triangle by the longest side of the triangle on top

48/32 = 1.5

Now let's divide the shortest sides of each triangle in the same order

36/24 = 1.5

Repeat for the middle-most sides

45/30 = 1.5

We get the same linear scale factor 1.5 each time. Therefore, the triangles are similar due to the SSS Similarity theorem

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

Question 5

Any angle is equal to itself due to the reflexive property. So that will go for reason number 2.

Reason 3 is SAS similarity because we have the sides in proportion (statement 1) and the angles are congruent (statement 2).

3 0

2 years ago

Import customs officials sometimes randomly select crates of cargo for close, but time-consuming, inspection. Suppose there are

Ostrovityanka [42]

The simple random sample is Cherryport, Dallhoise, Foxwood, and Sapphire.

What is the meaning of probability in math?

Probability is simply how likely something is to happen.
Whenever we're unsure about the outcome of an event, we can talk about the probabilities of certain outcomes—how likely they are.
The analysis of events governed by probability is called statistics.

Three Types of Probability

Classical: (equally probable outcomes) Let S=sample space (set of all possible distinct outcomes).
Relative Frequency Definition
Subjective Probability.

the list of random digits from left to right, starting at the beginning of the list.

74803 12009 45287 71753 98230 66419 84533 11793 04951 20597 11384

The simple random sample is Cherryport, Dallhoise, Foxwood, and Sapphire.

Learn more about probability

brainly.in/question/20798570

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2 years ago

30 increased by 55% I need help solving this, I am good in history ect, but maths kills me

Lubov Fominskaja [6]

I honestly don't know, but I think it is 63

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3 years ago