Answer:
Step-by-step explanation:
2800: 2 * 2 * 2 * 2 * 5 * 5 * 7
75: 3 * 5 * 5
168: 2 * 2* 2 * 3 * 7
It's not really multiplication. It's more division.
Try 2800 as a sample. What you are trying to do is break this down into primes. The first prime is 2
2800/2 = 1400
1400 / 2 = 700
700 / 2 = 350
350 / 2 = 175. That's the end of what the 2s can do.
175 / 5 = 35
35/ 5 = 7 7 is a prime. You are done. Now run up the ladder.
2800: 2 * 2 * 2 * 2 * 5 * 5 * 7
75 is not an even number. It has no 2s. Go to 3
75 / 3 = 25.
25 / 5 = 5
That's the end
75: 3 * 5 * 5
Your calculator can be of great help. The rule is keep factoring until you get a decimal remainder. Move on to the next prime. Stop when the last division gives you a prime.
I think C would equal 15, because 14 + 14 = 28; 15 + 15 = 30 which is greater than 28.
Answer:
17 is the answer.
Step-by-step explanation:
Answers:
k = 13The smallest zero or root is x = -10
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Work Shown:
note: you can write "x^2" to mean "x squared"
f(x) = x^2+3x-10
f(x+5) = (x+5)^2+3(x+5)-10 ... replace every x with x+5
f(x+5) = (x^2+10x+25)+3(x+5)-10
f(x+5) = x^2+10x+25+3x+15-10
f(x+5) = x^2+13x+30
Compare this with x^2+kx+30 and we see that k = 13
Factor and solve the equation below
x^2+13x+30 = 0
(x+10)(x+3) = 0
x+10 = 0 or x+3 = 0
x = -10 or x = -3
The smallest zero is x = -10 as its the left-most value on a number line.
HEY MATE YOUR ANSWER IS HERE
★ GIVEN EQUATION ★
X + Y = 4
★ SOLUTION ★
LET VALUE OF X = 0 , 1 , 2 , 3 AND 4
WHEN X = 0
0 + Y = 4
Y = 4
WHEN X = 1
1 + Y = 4
Y = 3
WHEN X = 2
2 + Y = 4
Y = 2
WHEN X = 3
3 + Y = 4
Y = 1
WHEN X = 4
4 + Y = 4
Y = 0
NOW OUR 5 COORDINATES OF LINE X + Y = 4 ARE
A ( 0 , 4)
B ( 1 , 3 )
C ( 2 , 2)
D ( 3 , 1 )
E ( 4 , 0 )
THANKS FOR YOUR QUESTION HOPE THIS HELPS
can i have a brill
thank u
good luck
