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nordsb [41]
3 years ago
15

PLEASE HELP ME THANK YOU

Mathematics
1 answer:
Julli [10]3 years ago
5 0

Answer:

(1,4)

Step-by-step explanation:

When replacing X and Y with the values (1,4)

1+3=4  AND -1+5=4

Therefore, (1,4) is correct

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The salary scale for a senior officer starts at N57000
katrin [286]

Answer:

N1,052,800.

Step-by-step explanation:

The starting salary of the officer = N57,000

Increase per annum =N2,800

The given pattern forms an arithmetic sequence since the annual salary increases by a fixed amount.

We are to determine the total amount of money that the officer will earn in 14 years.​

Sum of an arithmetic sequence, S_n=\frac{n}{2}[2a+(n-1)d]$ ,where: \left\{\begin{array}{lll}$First term, a=57,000\\$Common difference, d=2,800\\$Number of terms, n=14\end{array}\right

S_{14}=\frac{14}{2}[2(57,000)+(14-1)(2,800)]\\=7[114,000+13*2800]\\=7[150,400]\\=1,052,800

At the end of 14 years, the total amount earned by the officer will be N1,052,800.

5 0
3 years ago
I need help with this question ASAP! Please help!
blondinia [14]

Answer:

140 degree

Step-by-step explanation:

Since the sum total of a polygon is 540 degree, simply subtracts from each degree of the other angles.

540 degree - 110 degree - 85 degree - 125 degree - 80 degree = 140 degree

6 0
2 years ago
Is a prime number is a prime number 61 or 21
goldenfox [79]
61 is a prime number.
5 0
3 years ago
Q(x) = 2x+5<br> f(x)= x^2+1<br> find (gof)(7)
poizon [28]

Answer:105

Step-by-step explanation:

first find f(7)

(7)^2 + 1

=50

then put the answer for f(7) in g of x

2(50) + 5

=105

4 0
4 years ago
Radius of a circle whose diameter is d=7.2
TiliK225 [7]
ANSWER:3.6

EXPLAINATION:
since a diameter is the total length from one side to the other and a radius is just to the middle of a circle. to get the diameter yoo would have to divide 7.2÷2=3.6
IF YOU LIKE MY ANSWER I WOULD APPRECIATE A BRAINLIEST. THANK YOU
3 0
3 years ago
Read 2 more answers
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