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3 years ago

Solve using quadratic formula.

Mathematics

1 answer:

Kazeer [188]3 years ago

7 0

Answer:

Step-by-step explanation:

Just use the quadratic formula

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What's the answer for number 2??

FromTheMoon [43]

Well if there are 3 outcomes just add the two other outcomes and subtract from 1

so 0.4+0.25=0.35

so the third outcomes has a 0.35 chance of happening or 35%

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3 years ago

The green darner is one of the largest dragonflies. It weighs about four hundredths of an ounce. Write four hundredths in standa

Tju [1.3M]

Answer:

Four hundredths

In standard form - $4\times 10^{-2}$

Step-by-step explanation:

Given : The green darner is one of the largest dragonflies.

It weighs about four hundredths of an ounce.

To write : Four hundredths in standard form.

Solution :

Standard form is when we write a larger number in a smaller way.

For example : $20000= 2\times 10^4$

So, according to question

Largest dragonflies weighs about four hundredths of an ounce.

Four hundredths means 0.04

In standard form - $4\times 10^{-2}$

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3 years ago

A new online music service has a collection of 1,500 songs. It expects to triple the number of songs each year for the next few

Rzqust [24]

Answer: y = (3^(x-1))*1500

Step-by-step explanation:

We want the relationship

y = f(x)

where y is the number of songs, and x is the number of years.

We know that in the first year, x = 1, the site has 1,500 songs.

The next year, x = 2, the number of songs is tripled, then we will have:

1,500*3 = 4500 songs.

The next year, x = 3, we will have: 3*(3*1500) = (3^2)*1500.

when x = 4, the number is tripled again:

3*(3^2)*1500 = (3^3)*1500

We already can see the pattern, for the year x, the site will have:

y = (3^(x-1))*1500 songs.

This is the equation we are looking for.

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Answer:

B and C are true.

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The product of which expression contains four decimal places?

dalvyx [7]

Answer: we need to see the problem

Step-by-step explanation:

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