Which equation correctly shows how to determine the distance between the points (9, -2) and (6,3) on a coordinate grid?
Answers
Answer:
Step-by-step explanation:
d = sqrt ((x2 - x1)^2 + (y2 - y1)^2)......this is ur equation
(9,-2)....x1 = 9 and y1= -2
(6,3)....x2 = 6 and y2 = 3
d = sqrt ((6 - 9)^2 + (3 - (-2)^2)
d = sqrt ((-3^2) + (5^2))
d = sqrt (9 + 25)
d = sqrt (34)
d = 5.83
Answer:
5,83
Step-by-step explanation:
AC = 3-(-2) = 5
BC = 9 - 6 = 3
AB^2 = AC^2 + BC^2
AB^2 = 5^2 + 3^2
AB^2 = 25 + 9
AB^2 = 34
AB = sqrt(34)
AB = 5,83
Done :))
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Answers
Answers
Hello from MrBillDoesMath!
Answer:
21
Discussion:
f(x) = 3x2 - 2x + 5
Substitute x = -2 in f(x) above to get
f(-2) =
3 (-2)^2 - 2(-2) + 5 = => (-2)^2 = (-2) * (-2) = +4, -2(-2) + + 4
3*4 + 4 + 5 =
12 + 4 + 5 =
21
Thank you,
MrB
Answers
Answers
aera=legnth wtimes width
in a square, legnth=width
aera=legnth^2
legnth=14 feet
convert o inches
14*12=168 inches
area=168^2=28224 square inches
how many tiles will cover all of floor?
aka
how many 192 in^2 is at least 28224 (at least, because we need to cover the whole floor without gaps)
192x>28224
divide both sides by 192
x>147
147 is the number of tiles we need
Answers
Answer:
what number divided by 9 is 5? answer is 45
Step-by-step explanation:
Answer:
You must multiply. j = 45
Step-by-step explanation:
If j divided by 9 equals 5 than you must multiply 9 x 5 = j and j = 45
Answers
Factor the minus or negative off the -x²+8x and don't do anything with -12
Find the number that can complete the square, for x²-8x, it'd be +16.
Just think of debt, you borrow, you have to give back. You borrow +16 then you have to give 16 out so you write -16 out of x²-8x+16 but still inside the bracket.
Distribute the minus/negative inside the bracket as you get -(x-4)²+16-12 because negative multiply negative and you get positive
Then you get y=-(x-4)^2+4
Because a<0, it's inverted parabola as shown below.
therefore, the vertex is at (4,4) or (-(-4), 4) because the vertex is at (-h,k) and h is -4 that means -h = 4
axis of symmetry is -b/2a, our b is 8, -b = -8 and 2a = 2(-1) so -8/-2 = 4 (From the standard form)
therefore, axis of symmetry is 4