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Katena32 [7]
3 years ago
12

HELP I DONT UNDERSTAND

Mathematics
1 answer:
Komok [63]3 years ago
8 0

Answer:

I'm sorry I have no idea what the answer is either

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A pie tin has an area of 81 pi square inches. Which choice below is closest to its
Brrunno [24]

Answer:

can i have the choices

Step-by-step explanation:

7 0
3 years ago
The total mass of Abdul and his baby brother is 15.25kg . The mass of Abdul and his father is 72.25kg . The mass of Abdul's fath
Helen [10]
A+b=15.25

a+f=72.25, since f=13b

a+13b=72.25  so now we have two equation in two variables...

a+13b=72.25 and a+b=15.25  so we can say:

(a+13b=72.25)-13(a+b=15.25)

a+13b-13a-13b=72.25-198.25

-12a=-126

a=10.5 kg

So Abdul's mass is 10.5 kilograms.
  
8 0
3 years ago
Noah wants to put $1,000 in a savings account with a 1.5% annual interest rate. How much more money will he have after one year
NeX [460]
There are two types of interest: Simple interest and compounding interest:

Simple interest: F = P(1+in)
Compounding interest: F = P(1+i)ⁿ

The compounding interest is always bigger than simple interest for a given amount of n time. The effective interest rate is

Effective interest rate = 1.5%/year * 1 yr/12 months = 0.125% per month

Since there are 12 months in 1 year, n= 12. Then i = 0.125/100 = 0.00125

Difference = Compounded Interest - Simple Interest
Difference = P(1+i)ⁿ - P(1+in) = 1000(1+0.00125)¹² - 1000(1+0.00125*12)
Difference = $0.104

You will only have $0.104 more money than the simple interest.
3 0
3 years ago
HELPPPPP ME GUYSSSS........
tamaranim1 [39]

Answer:

\rm\displaystyle (x  +  2{)}^{2}  + (y  + 5 {)}^{2}  =  {1}^{}

\rm\displaystyle (x - 7{)}^{2}  + (y  + 3{)}^{2}  =  { 7 }

Step-by-step explanation:

<h3>QUESTION-1:</h3>

we are given the center and the redious of a circle equation

remember that,

\rm\displaystyle E _{c} :(x - h {)}^{2}  + (y - k {)}^{2}  =  {r}^{2}

where (h,k) is the centre coordinate and r is redious of the circle

given that, h=-2 , k=-5 and r=1

Thus substitute:

\rm\displaystyle (x - ( - 2){)}^{2}  + (y - ( - 5) {)}^{2}  =  {1}^{2}

simplify:

\rm\displaystyle (x  +  2{)}^{2}  + (y  + 5 {)}^{2}  =  {1}^{}

<h3>QUESTION-2:</h3>

Likewise

\rm\displaystyle E _{c} :(x - h {)}^{2}  + (y - k {)}^{2}  =  {r}^{2}

given that,h=7,k=-3 and r=√7

substitute:

\rm\displaystyle (x - (7{))}^{2}  + (y - ( - 3){)}^{2}  =  { \sqrt{7}  ^{2}   }

simplify:

\rm\displaystyle (x - 7{)}^{2}  + (y  + 3{)}^{2}  =  { 7 }

5 0
3 years ago
This one is for question #7
Varvara68 [4.7K]

Answer:

B

Step-by-step explanation:

6 0
3 years ago
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