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Akimi4 [234]
2 years ago
8

Jalil and Victoria are each asked to solve the equation ax – c = bx + d for x. Jalil says it is not possible to isolate x becaus

e each x has a different unknown coefficient. Victoria believes there is a solution, and shows Jalil her work: How can Victoria justify step 3 of her work?
Mathematics
2 answers:
luda_lava [24]2 years ago
8 0

Answer:

A , Rewrite the expression on the left using the distributive property.

makvit [3.9K]2 years ago
5 0
-c-d=bx
divide by b
-c-d/b=x
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consider these graphs: Eric thinks the equation y=(x-3)^2 will match the blue graph. Jenney thinks it will match the red graph.
Dimas [21]

Answer: Jenny

Step-by-step explanation:

By subtitue Y = 0

0=(x-3)^2

And you get 3

3 0
2 years ago
The music you hear when listening to a magnetic cassette tape is the result of the magnetic tape passing over magnetic heads, wh
Elden [556K]

Using the given formula T = LS

And given the time is 3 minutes (3 x 60 = 180 seconds)and the speed is 4-1/2 inches per second:

180 = L x 4-1/2

Solve for L by dividing both sides by 4-1/2:

L = 180 / 4-1/2

L = 40

The length should be 40 inches.

7 0
2 years ago
Which graph shows the solution to the system of linear inequalities? y > Two-thirdsx + 3 y ≤ Negative one-thirdx + 2
masya89 [10]

Answer:

The solution in the attached figure

Step-by-step explanation:

we have

y > \frac{2}{3}x+3 ----> inequality A

The solution of the inequality A is the shaded area above the dashed line y=\frac{2}{3}x+3

The slope of the dashed line is positive

The y-intercept of the dashed line A is (0,3)

The x-intercept of the dashed line A is (-4.5,0)

y\leq -\frac{1}{3}x+2 ----> inequality B

The solution of the inequality B is the shaded area below the solid line y=-\frac{1}{3}x+2

The slope of the solid line is negative

The y-intercept of the solid line B is (0,2)

The x-intercept of the solid line B is (6,0)

The solution of the system of inequalities is the shaded area between the shaded line and the solid line

using a graphing tool

see the attached figure

3 0
2 years ago
Read 2 more answers
for a population of 800000 subway riders, the numbers of subway trips taken per rider last january are approximately normally di
vladimir1956 [14]
So, we have
<span>Z=<span><span>x−μ / </span>σ

</span></span><span>Mean would be = 56
  30 - 56 = |-26| 4
3 - 56 = |-13|
 and
Standard deviation= 13
</span><span>2 - 1 will give us the approximate area
  95/2 - 68/2 = N

   95 -68 = 27

 27 /2 = 13.5
</span>Hence, the answer would be
<span>800,000 * .135
</span>= <span> 108000</span>
4 0
2 years ago
The region bounded by the given curves is rotated about the specified axis. Find the volume V of the resulting solid by any meth
Julli [10]

Answer:

V  = 23π/6

Step-by-step explanation:

V = 2π ∫ [a to b] (r * h) dx

y = −x² + 23x − 132

y = −(x² − 23x + 132)

y = −(x − 11) (x − 12)

Parabola intersects x-axis (line y = 0) at x = 11 and x = 12 ----> a = 11, b = 12

r = x

h = −x² + 23x − 132

V = 2π ∫ [11 to 12] x (−x² + 23x − 132) dx

V  = 23π/6

6 0
2 years ago
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