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3 years ago

Find the solution for quadratic x^2-7x+10=-2 leave your answers as fractions ( no decimals)

Mathematics

1 answer:

Zepler [3.9K]3 years ago

4 0

Answer:

x=3 x=4

Step-by-step explanation:

add 2 to both sides

x^2-7x+12=0

(x-3)(x-4)=0

x=3 x=4

i just factored it out, there are more ways of doing it probably

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kap26 [50]

Answer:

See below

Step-by-step explanation:

<u>Given functions</u>

f(x)=8^x
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2 years ago

2.1 If 5 + 3 = 0 and < 0, evaluate (without using a calculator):

Sergeeva-Olga [200]

1. 18

2.8

3.-1

<h3>What is expression?</h3>

An expression is a set of terms combined using the operations +, – , x or ,/.

Given:

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=22- 1*4

= 22-4

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3. 1 − 2

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brainly.com/question/14083225

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2 years ago

If X and Y vary directly, as x decreases, what happens to the value of y?

diamong [38]

As x decreases y also decreased

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2 years ago

Lucky Joe won $32,000,000 in a lottery. Every year for 10 years he spent 50% of what was left. How much did Lucky Joe have after

aniked [119]

Answer:

31,250

Step-by-step explanation:

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3 years ago

In a normal distribution, what is the probability that a data value will fall below the

Serga [27]

Answer:

A 99.96%

Step-by-step explanation:

The z score shows by how many standard deviations the raw score is above or below the mean. The z score is positive if the raw score is above the mean while the z score is negative if the raw score is below the mean. The z score is given by:

$z=\frac{x-\mu}{\sigma} \\\\where\ z=z-score,\ x=raw\ score,\mu=mean, \ \sigma=standard\ deviation\\\\For\ a\ sample\ size(n):\\\\z=\frac{x-\mu}{\sigma/\sqrt{n} }$

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2 years ago