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2 years ago

I was sick the day that the class went over how to do this and I don’t know how to do it.

Mathematics

1 answer:

xz_007 [3.2K]2 years ago

6 0

You first need to know the equation A=pi x r^2. The equation you need for this problem is pi (3.14) x 3^2

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Standard form of the equation that goes through (3, -1) with a slope of -1, please!

11111nata11111 [884]

Answer:

x+y=2

Step-by-step explanation:

Standard Form: ax+by=c

For most convenience start with slope-intercept form: y=mx+b

1. -1 = -1(3)+b - solve for b

b=2

y= -1x+2 (slope-intercept form)

2. Now convert to standard form

Add 1x to both sides:

1x+y=2

7 0

2 years ago

Bongiwe invests R12 000 in a savings account at 6,5% per annum compound interest. Calculate how much there will be in the saving

lianna [129]

Step-by-step explanation:

can you give me solution

8 0

1 year ago

How many arrangements can be made using 2 letters of the word HYPERBOLAS if no letter is to be used more than once?

alisha [4.7K]

Answer:

90 arrangements

Step-by-step explanation:

Since there are no repititions of letters, there are unique 10 letters in total.

THe number of arrangements would be 2 permutation 10. We need the formula for permutation. That is:

$nPr=\frac{n!}{(n-r)!}\\$

Now, n = 10 [total] and r is 2, so we have:

$nPr=\frac{n!}{(n-r)!}\\\\_{10}P_{2}=\frac{10!}{(10-2)!}\\=\frac{10!}{8!}\\=\frac{10*9*8!}{8!}\\=10*9\\=90$

So, there can be 90 arrangements

3 0

3 years ago

80km is 9% of what distance?

seropon [69]

Answer:

888.89 km

Step-by-step explanation:

Write the given question as an equation and solve.

80 km = 0.09 × (what distance)

(80 km)/0.09 = what distance . . . . . divide by the coefficient of the variable

888.89 km ≈ what distance

80 km is 9% of 888.89 km

3 0

2 years ago

On a piece of paper, Graph y

creativ13 [48]

The answer to this question is A

5 0

2 years ago

Read 2 more answers