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3 years ago

!!CHECK MY ANSWERS!!

Mathematics

1 answer:

AlekseyPX3 years ago

4 0

I think you're right. I'm in pre-algebra, and sucks at it. Yet, I keep a A.

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An amusement park sells 5 bottles of water for every

77julia77 [94]

Answer:

8 bottles of juice

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3 years ago

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Simplify 42 ⋅ 48 thanks

Andreyy89

42•48=2,016. Hope this helped!

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3 years ago

Solve the equation by using the quadratic formula. x^2+2x=6

katrin [286]

Answer:

$\Huge \boxed{{x=-1\pm \sqrt{7}}}$

Step-by-step explanation:

x² + 2x = 6

Subtract both sides by 6.

x² + 2x - 6 = 0

ax²+bx+c=0

a=1, b=2, and c=-6

We can apply the quadratic formula.

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

Plug in the values.

$\displaystyle x=\frac{-2\pm\sqrt{2^2-4(1)(-6)}}{2(1)}$

Evaluate.

$\displaystyle x=\frac{-2\pm\sqrt{4-(-24)}}{2}$

$\displaystyle x=\frac{-2\pm\sqrt{28}}{2}$

$\displaystyle x=\frac{-2\pm 2\sqrt{7}}{2}=-1 \pm \sqrt{7}$

6 0

3 years ago

X 6.4.5-T

butalik [34]

Same strategy as before: transform X ∼ Normal(76.0, 12.5) to Z ∼ Normal(0, 1) via

Z = (X - µ) / σ ↔ X = µ + σ Z

where µ is the mean and σ is the standard deviation of X.

P(X < 79) = P((X - 76.0) / 12.5 < (79 - 76.0) / 12.5)

… = P(Z < 0.24)

… ≈ 0.5948

8 0

3 years ago

Mathematics help quickly if its wrong ill get beat

Anuta_ua [19.1K]

Answer:

FIRST OPTION

Step-by-step explanation:

its the first option since the birds like the red bugs more all the red bugs will get eaten and the green ones will survive and evolve

5 0

3 years ago