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3 years ago

How many solutions does this system of equations have? Explain how you know.

Mathematics

1 answer:

Nostrana [21]3 years ago

3 0

Answer:

No solution

Step-by-step explanation:

The given equations are :

9x-3y=-6

3x-y=2.....(1)

5y=15x+10

5y-15x=10

y-3x=2 .....(2)

Equations (1) and (2) shows that the lines are parallel. We know that for parallel lines, there is no solution.

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Wat is the answer for this question -x2 + 5x + 24.

Helen [10]

Answer:

Step-by-step explanation:

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3 years ago

Select the expression that makes the equation true.

svetoff [14.1K]

Answer:

a.) -18 x 10^6

Step-by-step explanation:

multiply 9 x-2

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4 years ago

In triangle ABC, c is the hypotenuse, 0=25°, and b =3, Find the length of c ?

Charra [1.4K]

Answer:

$\large\boxed{c\approx3.31}$

Step-by-step explanation:

Use cosine:

$cosine=\dfrac{adjacent}{hypotenuse}$

$\cos\theta=\dfrac{b}{c}$

We have:

$\theta=25^o\to\cos25^o\approx0.9063\\\\b=3$

Substitute:

$\dfrac{3}{c}=0.9063$

$\dfrac{3}{c}=\dfrac{9063}{10000}$ <em>cross multiply</em>

$9063c=30000$ <em>divide both sides by 9063</em>

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8 0

3 years ago

If a box of Crackers contain six servings and has a total of 450 calories, find the number of calories per serving

almond37 [142]

Answer:

Step-by-step explanation:

450/6 = 75

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7 0

3 years ago

Which expressions are equivalent to the one below? Check all that apply. log2 16 + log2 16 A. log2(28) B. 8 C. log 256 D. log2 2

eduard

Answer:

B. 8.

D. log2 256.

Step-by-step explanation:

Generally:

loga b + loga b

= loga b^2.

Therefore log2 16 + log2 16

= log2 16^2

= log2 256.

From the above:

256 = 2^x where x is the log.

Now 2^8 = 256 so the original log2 16 + log2 16 = 8.

3 0

3 years ago

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