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Greeley [361]
3 years ago
6

Please help. Algebra.

Mathematics
1 answer:
beks73 [17]3 years ago
5 0
The answer is A. You would want to multiply the top by 4 to make y into 4y so that 4y and -4y and cancel when adding the two equations leaving you to solve for x.
Hope this helps.
You might be interested in
If A =
jeka57 [31]
A=53/24 and B=32/10

|A| = |53/24| = 53/24
|B| = |32/10| = 32/10
AB = 53/24 * 32/10 = 1,696/240


|A| * |B| = |AB|
|53/24| * |32/10| = |1,696/240|
53/24 * 32/10 = 1,696/240
1,696/240 = 1,696/240
7 0
3 years ago
What is the axis of symmetry for f(x) = -3x^2+12x-6
il63 [147K]
-3x^2 + 12x -6
a = -3
b = 12
We calculate the vertex "x" value with this formula:
(vertex "x value")  = -b / (2*a)
(vertex "x value")  = -12 / -6
The vertex "x" value equals the axis of symmetry value.
The axis of symmetry is at x = 2.

Source:
http://www.1728.org/quadr3.htm


6 0
3 years ago
What is 2,252.5327 as a whole numbe<br> ​
Montano1993 [528]

Answer:

Rounded to the nearest tenth: 2,252.5

Step-by-step explanation:

This number can't be a whole number since there is a decimal.

8 0
2 years ago
Read 2 more answers
Math answer homework​
stiv31 [10]

Answer:

2:15 p.m.

Step-by-step explanation:

Starting time                1:40 p.m.

Time on subway       <u>+0:17 </u>

Time off subway          1:57 p.m.

Time walking            <u>+0:18 </u>

Time at apartment       1:75

When the minutes are more than 60, you subtract 60 from the minutes and add 1 to the hours.

 1   :75

+1<u> - :60 </u>

  2 :15 p.m.

Daniel arrived at the apartment at 2:15 p.m.

8 0
3 years ago
The longer leg of a right triangle is 7 ft longer than the shorter leg. The hypotenuse is 9ft longer than the shorter leg. Find
julia-pushkina [17]

Answer:

8, 15 and 17 feet respectively

Step-by-step explanation:

Let the shorter leg=l feet

The longer leg of a right triangle is 7 ft longer than the shorter leg, therefore Length of the longer leg=(l+7) feet

The hypotenuse is 9ft longer than the shorter leg. Therefore Length of the hypotenuse=(l+9) feet

Using Pythagoras Theorem

Hyp^2=Opp^2+Adj^2\\(l+9)^2=l^2+(l+7)^2\\(l+9)(l+9)=l^2+(l+7)(l+7)\\l^2+9l+9l+81=l^2+l^2+7l+7l+49\\l^2+18l+81=2l^2+14l+49

This results into:

2l^2-l^2+14l-18l-81+49=0

l^2-4l-32=0\\l^2-8l+4l-32=0\\l(l-8)+4(l-8)=0\\(l-8)(l+4)=0

l-8=0 or l+4=0

l=8 or -4

Since length cannot be negative, The length l=8 feet

The sides of the rectangle are therefore: 8, 15 and 17 feet respectively

5 0
3 years ago
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