I need help here please..! I took a picture of the Multi -Step equations..!
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some tips and solve one or two of them.
Giving you a bunch of answers and nothing else does NOT help you.
Here are my tips to you:
A). You're always trying to find the number that the unknown letter must be equal to,
in order to make the equation a true statement. That's the solution to the equation,
and the 'answer' to the problem.
B). Always do what you have to do in order to get the letter all by itself on one side.
C). Whatever you do to one side of the equation, you must do to the other side.
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Examples, from the picture:
#3: 8x - 2 = -9 + 7x What can you do to get the 'x' all alone on one side?
Subtract 7x from each side: x - 2 = -9
Add 2 to each side: x = -7
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#2: 6 = 1 - 2n + 5
Combine the 1 and the +5 on the right side: 6 = 6 - 2n
What can you do to get the 'n' all alone on one side?
Subtract 6 from each side: 0 = - 2n
Divide each side by -2 : 0 = n
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#5: 4m - 4 = 4m
Subtract 4m from each side: - 4 = 0
There is no number for 'm' that can make -4 equal to zero.
So this equation has no solution.
(That's OK. Not every equation must have a solution.)
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Solve:n/4-1=n/5 .·(>▂<)·.
A.
x < –4
B.
x < 4
C.
x > –4
D.
x > 4
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5x + 8 > -12
5x > -12 - 8
5x > -20
x > -20/5
x > -4
The answer is: x > -4
Answers
1)we have to calculate the first derived
f´(x)=8-6x
2) we have to equalizate the first derived to "0", and find out the value of "x".
8-6x=0
-6x=-8
x=-8/-6=4/3
3)we have to calculate the second derived
f´´(X)=-6<0 ⇒ at x=4/3 we have a maximum.
4) we find the value of "y"
f(4/3)=1+8(4/3)-3(4/3)²=1+(32/3)-(48/9)=57/9
Therefore:
at (4/3 , 57/9) have a maximum
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791=1/2(h)(26.5+30)
791=1/2(h)(56.5)
1582=(h)(56.5)
28=h
(a) 10-7
(b) 9-17
(C) -5-8
(d) 14-(-3)
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The sum of the given pair of numbers is 17, 16, 3 and 11 respectively.
We need to solve the change of the difference into a sum and evaluate the sum.
What is the sum of numbers?
In mathematics, the summation is the addition of a sequence of any kind of numbers, called addends or summands; the result is their sum or total.
Now,
10-7 changing the difference into a sum we get 10+7=17.
9-17 changing the difference into a sum we get 9+17=16.
-5-8 changing the difference into a sum we get -5+8=3
14-(-3) changing the difference into a sum we get 14+(-3)=14-3=11
Therefore, the sum of the given pair of numbers is 17, 16, 3 and 11 respectively.
To learn more about the sum of numbers visit:
#SPJ2
Answer:
a. 10+7=17
b. 9+17=26
c. -5+7= 2
d. 14+(-3)= 14-3 = 11
Step-by-step explanation:
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When you move the decimal point to the 1, it goes 7 spaces to the left, so the exponent will be a positive 7.