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choli [55]
3 years ago
10

8/9k + 9/5 = -4 - 9/7k

Mathematics
1 answer:
Mamont248 [21]3 years ago
7 0

Answer:

k=-1827/685

Step-by-step explanation:

8/9k+9/5=-4-9/7k

8/9k-(-9/7k)=-4-9/5

8/9k+9/7k=-20/5-9/5

56/63k+81/63k=-29/5

137/63k=-29/5

k=(-29/5)/(137/63)

k=(-29/5)(63/137)

k=-1827/685

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Help! (40pts)
Vilka [71]

Answer:

Is only if a Biconditional?

The general form (for goats, geometry or lunch) is: Hypothesis if and only if conclusion. Because the statement is biconditional (conditional in both directions), we can also write it this way, which is the converse statement: Conclusion if and only if hypothesis.

Step-by-step explanation:

3 0
3 years ago
Write an equation that passes through a pair of points
Phoenix [80]

Answer:

C. y = -x + 2

Step-by-step explanation:

First, find the slope, m, of the line that passes through the two given points.

Slope = \frac{rise}{run} = \frac{-2}{2} = -\frac{1}{1} = -1

Next, determine the y-intercept, b.

The y-intercept is where the line intercepts the y-axis. The line intercepts the y-axis at y = 2. Therefore, b = 2.

Now, to get an equation of the line, substitute m = -1, and b = 2 in y = mx + b.

✅The equation would be:

y = -1x + 2

y = -x + 2

3 0
3 years ago
There are three different cubes such that the first cube is 64 times the volume of the second, and the volume of the second cube
tankabanditka [31]

Answer:

4/3

Step-by-step explanation:

If the ratio between the volumes of the first and the second cube is 64, the ratio between the sides is the cubic root of the ratio between the volumes, so:

V1 / V2 = 64

s1 / s2 = \sqrt[3]{64}  = 4

Doing the same for the second and third cubes, we have:

V2 / V3 = 1/27

s2/ s3 = \sqrt[3]{1/27}  = 1/3

So the ratio of the first cube side and the third cube side is:

s1 / s3 = (s1/s2) * (s2/s3) = 4 * (1/3) = 4/3

5 0
3 years ago
F(x) = -4x + 15 g(x) = 7x^3 Find (f-g)(2)
djyliett [7]

(f-g)(2)=f(2)-g(2)

Therefore, find f(2) and g(2) first before subtracting.

f(x)=-4x+15

Therefore,

f(2)=-4(2)+15\\f(2)=-8+15\\f(2)=7

Then find g(2)

g(x)=7x^3\\g(2)=7(2)^3\\g(2)=7(8)\\g(2)=56

Then put f(2) to subtract g(2)

f(2)-g(2)=7-56\\f(2)-g(2)=-49

Therefore, the answer is (f-g)(2) = -49.

4 0
3 years ago
Read 2 more answers
180 divided by 2.5 I need help and could you show me how to do it
forsale [732]

Answer:

72

Step-by-step explanation:

180/2.5

= 72

8 0
3 years ago
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