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2 years ago

Which statement about 6x2 + 7x – 10 is true?

Mathematics

2 answers:

amm18122 years ago

7 0

Answer:

(x+2)

Step-by-step explanation:

factor out the equation and get

(x+2)(6x-5)

Novay_Z [31]2 years ago

5 0

Answer:

a on edge

Step-by-step explanation:

just took the test

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The graph of y = is reflected over the y-axis and then translated down 2 units to form f(x). Which is the graph of f(x)? please

Rom4ik [11]

Answer:

I think the answer is option b

Step-by-step explanation:

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2 years ago

A jar contains 4 white and 4 black marbles. We randomly choose 4 marbles. If 2 of them are white and 2 are black, we stop. If no

Airida [17]

Answer:

<em>Find the probability of success in a single trial and then think about the nature of the problem (when do we stop). </em>

Step-by-step explanation:

Observe that in the single trial, we have (8 4) possibilities of choosing our set of balls. If we have chosen two white balls and two black balls, the probability of doing that is simply

p=(4 2)*(4 2)/(8 4)

This is well know Hyper geometric distribution. Now, define random variable X that marks the number of trials that have been needed to obtain the right combination (two white and two black balls). From the nature of the problem, observe that X has Geometric distribution with parameter p that has been calculated above. Hence

P(X = n) = (1— p)^n-1 *( p )

<em>Find the probability of success in a single trial and then think about the nature of the problem (when do we stop). </em>

3 0

1 year ago

What is the probability that a point chosen at random in the rectangle is also in the blue triangle? A triangle inside of a rect

Oduvanchick [21]

Alright, lets get started.

Two sides of the rectange are 14 and s.

So, the area of the rectange would be =

A triangle is cut from the rectangle.

The height of the triangle is =

The base of the triangle is = 14

So area of the triangle would be =

area of the triangle would be =

So, the area of shaded region = area of rectange - area of triangle

the area of shaded region =

As per given in question, area of shaded region is 84, hence

..........equation

So, this is the equation for s : Answer

Hope it will help :)

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2 years ago

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A scientist planted seeds in 4 sections of soil for an experiment. not all of the seeds grew into plants. after 20 days, the sci

a_sh-v [17]

I think you would multiply 20 × 4 and the answer would be 80 that the scientist counted the number of plants in each 4 sections after 20 days.

4 0

1 year ago

Suppose that lower production costs increases the supply of wheat, such that more wheat is supplied at each price level. After t

just olya [345]

When the demand and supply curve intersect, that is, where the quantity demanded and quantity supplied are equal, the market is said to be in equilibrium. Thus, the given quantity is equilibrium quantity.

From the graph, we see that when the production cost of wheat is $4, the equilibrium quantity is 600 units.

When the production cost lowers from $4 to $3, the supply of wheat increases, such that the equilibrium quantity increases from 600 units to 800 units.

Thus, after an increase in supply, the equilibrium quantity increases.

So, Option A is the correct answer.

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2 years ago

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