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3 years ago

11

Alexander spent $28 for 8 gal of gas. Decide if each statement about the ratio relationship is true or false. "Alexander has $45

and could fill his 13-gal tank"
True
False

1 answer:

sveticcg [70]3 years ago

6 0

Answer:

false

Step-by-step explanation:

he needs at least 45.5 to fill his 13 gallon tank.

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mixas84 [53]

9514 1404 393

Answer:

17 -4i

Step-by-step explanation:

You do this the same way you would if i were a variable.

8-(-4+5i)-(-5-i) = 8 +4 -5i +5 +i = (8 +4 +5) +(-5i +i) = 17 -4i

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3 years ago

Rose bought 7/20 kilogram of ginger candy and 0.4 kilogram of cinnamon candy. Which did she buy more of? Explain how you know.

malfutka [58]

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3 years ago

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yKpoI14uk [10]

Answer:

45m

Step-by-step explanation:

4 0

3 years ago

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Which equation is true when m = 4?

Luba_88 [7]

The correct answer is A and B because if you replace the m's with 4 than you do get the answer at the end of the equation. Hope this helps.

4 0

3 years ago

What are the exact solutions of x^2 − 3x − 7 = 0?

bulgar [2K]

<u>Given</u>:

The given equation is $x^{2} -3x-7=0$

We need to determine the exact solutions of the equation.

<u>Exact solution:</u>

The exact solution of the equation can be determined by solving the equation using quadratic formula,

$x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}$

From the equation the values are a = 1, b = -3 and c = -7

Thus, substituting these values in the equation, we get;

$x=\frac{-(-3) \pm \sqrt{3^2-4(1)(-7)}}{2(1)}$

$x=\frac{3 \pm \sqrt{9+28}}{2}$

$x=\frac{3 \pm \sqrt{37}}{2}$

Thus, the exact solutions of the given equation is $x=\frac{3 \pm \sqrt{37}}{2}$

Hence, Option A is the correct answer.

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3 years ago