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3 years ago

Can u help me with this?

Mathematics

1 answer:

RSB [31]3 years ago

8 0

Answer: Yes. The sales tax is 5% which equals $4.20 for $84

Step-by-step explanation:

$\dfrac{0.60}{12}=0.05\qquad \rightarrow 5\%\\\\\\\dfrac{1.20}{24}=0.05\qquad \rightarrow 5\%\\\\\\\dfrac{1.80}{36}=0.05\qquad \rightarrow 5\%\\\\\\\dfrac{2.40}{48}=0.05\qquad \rightarrow 5\%$

The sales tax rate is proportional for the values in the table.

$84 x 0.05 = $4.20

The sales tax on a purchase of $84 is $4.20

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What is the square root of 64 over 225 with a negative outside of the radical?

irinina [24]

The square root of (64/225) is the same as √64 / √225 .
That could make the whole thing easier.

Do you know what either of those separate square roots is ?

You're right ! I'm so impressed!
The square root of 64 IS 8, and the square root of 225 surely is 15 .
You really know your stuff !

So now, the expression is √64 / √225 = 8 / 15 .

Oh, I almost forgot, it has a negative sign before it. OK,so the answer is - 8/15 .

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3 years ago

The topic is law of cosines and sines and I need help with this

sergiy2304 [10]

Answer:

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3 years ago

A 9-kg of mangoes for 12$_____per kg

enot [183]

If 9kg costs 12$, then a single kg costs around 1.3$

This is done with a simple proportion

9 : 12 = 1 : X
x = 12/9
x = 1.33

5 0

3 years ago

Please I need help step by step

myrzilka [38]

Perimeter = 18.9

If you observe the triangle, you can see that all of its sides are equal. They are all s, or 6.3 mm. This means that to find the perimeter of the triangle, you can do either of two things:

1. You can multiple s by 3.

2. You can add s three times.

Either way, you will get the same answer. 6.3 • 3 = 18.9, and 6.3 + 6.3 + 6.3 = 18.9

If I am understanding the question correctly, then "type" means the type of triangle this triangle is. To figure this out, look at the measurements of the triangle. All of its sides are equal in length. That means that it is an equilateral triangle.

I know some schools like students to write "equilateral acute" triangles, since all of the angles are less than 90˚. If you want to be sure, I'd contact your teacher and ask.

Hope this helps!

5 0

3 years ago

Read 2 more answers

A bucket contains 4 red balls that are numbered 1, 2, 3, 4. It also contains 6 black balls that are numbered 5, 6, 7, 8, 9, 10.

Yakvenalex [24]

The probability is 1/9

We want to find the probability that the first drawn ball is even, and the second is odd.

The probability of randomly drawing an even ball will be equal to the quotient between the number of balls with even numbers and the total number of balls in the bucket.

We have a total of 10 balls (4 red ones and 6 black ones)

and 5 of these have even numbers (2, 4, 6, 8, 10)

Then the probability of drawing a ball with an even number first is:

p = 5/10 = 1/5

now we want to get a ball with an odd number.

notice that we already got a ball with an even number and we did not replace it, so now there are 9 balls left in the bucket, 5 odd ones, and 4 even ones.

The probability of getting an odd ball is computed in the same way thana above, as the quotient between the number of balls with odd numbers (5) and the total number of balls in the bucket (9)

q = 5/9

The joint probability (the probability that these two events happen together) is equal to the product of the individual probabilities, so we will get:

P = p*q = (5/9)*(1/5) = 1/9

The probability is 1/9

If you want to learn more about this topic, you can read:

brainly.com/question/24280250

6 0

3 years ago

Can u help me with this?​

Can u help me with this?