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3 years ago

Help me with this problem please

Mathematics

1 answer:

Brums [2.3K]3 years ago

6 0

It makes more sense to start with parts (c) and (d), then answer parts (a) and (b).

(c) The plot is below.

(d) Mixtures that are the same color have the same ratio of blue to yellow. They fall on the same line.

(a) There are two (2) different shades of paint mixtures.

(b) Shades A and C are the bluest. Their ratio of blue to yellow is the highest. (The slope of the line connecting their dots to the origin is the steepest.)

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The original temperature is 29.9 the temperature decreases by 8.7 and then again by 17.8 what is the final temperature?

Inga [223]

Answer:

the final temperature is 39.0

7 0

4 years ago

Which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring? −b, b2 − 4ac, 2a Use th

denpristay [2]

<span>The expression b^2-4ac is called the discriminant. If it is zero, or positive and a perfect square (like 4, 9, 25, 36, etc), the solutions to the quadratic equation will be rational numbers and factoring will work.

On the other hand, if the discriminant is positive but not a perfect square, the solutions will be irrational, and if it is negative, there are no real solutions. In either of those cases, the quadratic expression cannot be factored.

In the equation 2x^2+7x+3=0, the discriminant is b^2-4ac = 7^2 - 4*2*3= 49-24 = 25 = 5^2

That means that the solutions can be found by factoring.

I hope my answer has come to your help. Thank you for posting your question here in Brainly.</span>

3 0

3 years ago

Read 2 more answers

Help please!!! will mark brainliest

xxMikexx [17]

Answer:

f(x) = - 2 (x + 2)² + 6

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (- 2, 6), thus

y = a(x - (- 2))² + 6, that is

y = a(x + 2)² + 6

To find a substitute the point (0, - 2) into the equation

- 2 = a(0 + 2)² + 6 ( subtract 6 from both sides )

- 8 = 4a ( divide both sides by 4 )

- 2 = a

f(x) = - 2(x + 2)² + 6 ← in vertex form

6 0

3 years ago

Hans bought 3 CDs that were each the same price. Including sales tax, he paid a total of 41.10. Of that total, 2.40 was tax. Wha

Olin [163]

Answer:

Each CD cost 12.90 before tax

Step-by-step explanation:

41.10-2.40=38.7

38.7/3=12.90

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3 years ago

I need help understanding rate of change and slope.

Papessa [141]

Rate of Change and Slope are both the same thing. They show the amount of change on the “y-axis” as the “x-axis” moves. I hope it helps... we learned this in class about a month ago.

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3 years ago

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