You owe some friends $25 and pay them back $18. Which number sentence shows this situation?25 + 18
-25 + 18
-18 + 25
-25 + (-18)
Answers
$25 - $18 = $7
You still owe your friends $7.
The correct result would be 25 - 18 = - 18 + 25.
Answer:
-18 + 25
Step-by-step explanation:
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The school café charges $3 for hot lunch. This amount is automatically withdrawn from a student's lunch account each day they purchase. If Kelsey purchased hot lunch all 5 days last week, how much did her lunch account change?
Jika x1 dan x2 merupakan akar akar persamaan x2+5x-2=0, maka (x1+2x2)(x2+2x1)=
B. The probability of heads is 30%.
C. The probability of heads is 35%
D. The probability of heads is 70%
Answers
Answer:
Therefore, The correct option is A. The probability of heads is 40%
Step-by-step explanation:
First set of trials : THTHTHTHHT ( T = Tails ; H = Heads)
Number of heads = 5
Number of outcomes = 10
Second set of trials : TTTHTTHTTH
Number of heads = 3
Number of outcomes = 10
Now, Total number of heads in the two tosses of the coin = 5 + 3 = 8
Total number of outcomes in the two tosses of the coin = 10 + 10 = 20
Therefore, The correct option is A. The probability of heads is 40%
Answers
Answer:
Y = 0
Step-by-step explanation:
Y = -1/2 x²
To find y-intercept, substitute X = 0
Solve the equation for y
Y = 0
Answers
Answer: 2.52
Step-by-step explanation:
(assuming that when you say 710, you mean 7/10)
3.6/1 times 7/10 = 25.2/10 or 2.52
Answers
Answer:
ABCD is not a parallelogram
Step-by-step explanation:
Use the distance formula to determine whether ABCD below is a parallelogram. A(-3,2) B(-3,3) C (5,-3) D (-1.-5)
We have to find the length of the sides of the parallelogram using the formula below
= √(x2 - x1)² + (y2 - y1)² when given vertices (x1, y1) and (x2, y2)
For side AB
A(-3,2) B(-3,3)
= √(-3 -(-3))² + (3 -2)²
= √0² + 1²
= √1
= 1 unit
For side BC
B(-3,3) C (5,-3)
= √(5 -(-3))² + (-3 -3)²
= √8² + -6²
= √64 + 36
= √100
= 10 units
For side CD
C (5,-3) D (-1.-5)
= √(-1 - 5)² + (-5 - (-3))²
= √-6² + -2²
= √36 + 4
= √40 units
For sides AD
A(-3,2) D (-1.-5)
= √(-1 - (-3))² + (-5 -2)²
= √(2² + -7²)
= √(4 + 49)
= √53 units
A parallelogram is a quadrilateral with it's opposite sides equal
From the above calculation
Side AB ≠ CD
BC ≠ AD
Therefore, ABCD is not a parallelogram
Answers
= 2x - 4 + 96 + 54y
= 2x + 54y + 92
Answers
Well, let's see.
First let's get ourselves oriented.
Where in the world are we ?:
-- The 'csc' (cosecant) of anything is 1/sine .
-- If the csc is negative, that tells us the sine of it is also negative ... -2/5 .
-- Since the sine is negative, that means the angle is in the
3rd or 4th quadrant ... between 180° and 360°.
-- But the question also says that the angle is between π and 3π/2 .
That's the 3rd quadrant ... between 180° and 270°.
I think that helps. That's the quadrant where the 'x's and the 'y's
are all negative. So we can immediately throw out the middle \
two choices. It has to be either first or the last choice .
The rest is kind of too hard to explain.
Please see the attached picture.