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vodomira [7]
2 years ago
13

Explain how a solution found using substitution can be checked.

Mathematics
1 answer:
DENIUS [597]2 years ago
4 0
A solution can be found using substitution by substituting the ordered pair into both of the original equations.
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What is the name of a polygon that has four congruent sides and these angle measures 80,100,80,100
Black_prince [1.1K]

Quadrilateral. If you add the angles up on any quadrilateral, it equals 360 (it should always add to 360 for a quadrilateral)

8 0
2 years ago
I'll give you brainliest if you answer correctly! <3
NeTakaya

Answer:

The answer should the second Arrow option.

Step-by-step explanation:

I'm not into this subject well so, <em>so sorry if its wrong</em>..

This type of test is in K12 which is my school.

8 0
2 years ago
PLEASE HELP
GREYUIT [131]

Answer:

Step-by-step explanation:

Polygon A translated 5 blocks right.

4 0
3 years ago
Factor: m^2 - 20m - 21
Anton [14]

Answer: (m-21)(m+1)

Step-by-step explanation:

To factor this trinomial, find two numbers that multiply to -21 and add to -20:

(-21)(1)=-21

-21+1=-20

They are -21 and 1.

Add -21 and 1 to m to get both factors:

(m+(-21)) and (m+1)

(m-21) and (m+1)

Multiply them to get the answer:

(m-21)(m+1)

4 0
2 years ago
9. Use the​ compound-interest formula to find the account balance​ A, where P is​ principal, r is interest​ rate, n is number of
IceJOKER [234]

Interest on interest, or compound interest, is the adding of interest to the principal sum of a loan or deposit. The account balance after a period of 5 years will be $1.63634×10²⁰.

<h3>What is compound interest?</h3>

Interest on interest, or compound interest, is the adding of interest to the principal sum of a loan or deposit. It's the outcome of reinvesting interest rather than paying it out so that interest is received on the principal plus previously collected interest in the next quarter.

A = P(1 + \frac{r}{n})^{nt}

A = final amount

P = initial principal balance

r = interest rate

n = number of times interest applied per time period

t = number of time periods elapsed

Given the principal amount is $12,385, the rate of interest is 7.5%, and the time period is daily. Therefore, the amount can be written as,

A = P(1 + \frac{r}{n})^{nt}\\\\A = \$12,385(1 + \frac{7.5}{365})^{(365 \times 5)}\\\\A = \$1.63634 \times 10^{20}

Hence, the account balance after a period of 5 years will be $1.63634×10²⁰.

Learn more about Compound Interest:

brainly.com/question/25857212

#SPJ1

5 0
2 years ago
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