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Alexxx [7]
2 years ago
8

HELP WILL MARK BRAINLIEST If the sin 60° is

Mathematics
2 answers:
Ghella [55]2 years ago
8 0

Answer:

C. 30°; square root 3/2

I used the unit circle to find the value

uranmaximum [27]2 years ago
4 0
The answer is the 3rd option


30-60-90 triangle for reference

Remember soh cah toa

O:opposite, a:adjacent, h:hypotenuse

S:sin c:cosine t:tangent

Hope this helped :)
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Pls i need answeres 3 values that would make this inequality true.8n + 4 ≤ 28
igor_vitrenko [27]
The way you can get this answer you can use the calculater
7 0
3 years ago
QUESTION 3<br><br> Find the interest. Round to the nearest cent.<br><br> $1850 at 8% for 14 months
Genrish500 [490]

Answer:

I=\$172.67

Step-by-step explanation:

we know that

The simple interest formula is equal to

I=P(rt)

where

I is the Interest Value

P is the Principal amount of money to be invested

r is the rate of interest  

t is Number of Time Periods

in this problem we have

t=14/12\ years\\ P=\$1,850\\r=0.08

substitute in the formula above

I=1,850(0.08(14/12))

I=\$172.67

3 0
2 years ago
Graph the following features:<br> • Slope = 2<br> Y-intercept = -5
Arada [10]

y = mx + b

y = 2x - 5

you can go to desmos calculator online and simply put in the equation. but what you're going to do is find -5 on the y axis. then you will go up 2 and then 1 to the right.

it should look like this:

hope this helps !!

5 0
2 years ago
Read 2 more answers
Ashley is packing her bags for her vacation. She has 7 unique socks, but only 3 fit in her bag.
IrinaVladis [17]

Answer:

There are 35 possible group of 3 socks from a total of 7

Step-by-step explanation:

Given

Number of unique socks = 7

Number of possible selection = 3

Required

Number of ways she can make her selection.

The question can be categorised as combination; reason being that words like "take" as used in the question points to combination or selection.

To solve this, we make use of combination formula.

nCr = nPr/r!

Where n = 7 and r = 3

By substitution, we have

7C3 = 7P3÷3!

Taking it one at a time

7P3 = 7!÷(7-3)!

7P3 = 7! ÷ 4!

7P3 = 7 * 6 * 5 * 4! ÷ 4!

7P3 = 7 * 6 * 5

7P3 = 210

3! = 3 * 2 * 1

3! = 6.

So,

7C3 = 210 ÷ 6

7C3 = 35.

Hence, there are 35 possible group of 3 socks from a total of 7

5 0
3 years ago
Find the percent of increase in the number of area codes from 1999 to 2004. Explain why knowing a percent of change can be more
Nikolay [14]

Here are two ways to calculate a percentage change, use the one you prefer:

Method 1<span>Step 1: Calculate the change (subtract old value from the new value)Step 2: Divide that change by the old value (you will get a decimal number)Step 3: Convert that to a percentage (by multiplying by 100 and adding a "%" sign) Note: when the new value is greater then the old value, it is a percentage increase, otherwise it is a decrease.</span>Method 2<span>Step 1: Divide the New Value by the Old Value (you will get a decimal number)Step 2: Convert that to a percentage (by multiplying by 100 and adding a "%" sign)Step 3: Subtract 100% from that Note: when the result is positive it is a percentage increase, if negative, just remove the minus sign and call it a decrease.</span>ExamplesExample: A pair of socks went from $5 to $6, what is the percentage change?

Answer (Method 1):

<span>Step 1: $5 to $6 is a $1 increaseStep 2: Divide by the old value: $1/$5 = 0.2<span>Step 3: Convert 0.2 to percentage: 0.2×100 = 20% rise.</span></span>

Answer (Method 2):

<span>Step 1: Divide new value by old value: $6/$5 = 1.2Step 2: Convert to percentage: 1.2×100 = 120% (i.e. $6 is 120% of $5)<span>Step 3: Subtract 100%: 120% - 100% = 20%, and that means a 20% rise.</span></span>

Another Example: There were 160 smarties in the box yesterday, but now there are 116, what is the percentage change?

Answer (Method 1): 160 to 116 is a decrease of 44. Compared to yesterday's value: 44/160 = 0.275 = 27.5% decrease.

Answer (Method 2): Compare today's value with yesterday's value: 116/160 = 0.725 = 72.5%, so the new value is 72.5% of the old value.
Subtract 100% and you get -27.5%, or a 27.5% decrease.

Why Compare to Old Value?

Because you are saying how much a value has changed.

Example: Milk was $2, now it is $3, did it rise $1 compared to $2 or $3 ?

We compare to the original $2 value, so we say the change is $1/$2 = 0.5 which is a <span>50% increase</span>

4 0
2 years ago
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