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3 years ago

Solve the simultaneous equation y = x^2 and y = 3x - 2

Mathematics

1 answer:

gayaneshka [121]3 years ago

3 0

Answer:

${x}^{2} = 3x - 2 \\ {x}^{2} - 3x + 2 = 0 \\ (x - 1)(x - 2) = 0 \\ x = 1 \: or \: x = 2 \\ for \: x \: = 1 \\ \: y = {(1)}^{2} = 1 \\ for \: x = 2 \\ y = {(2)}^{2} = 4$

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Is -13 less than f/2

LenKa [72]

Answer:

Yes, -13 is less than f/2.

Step-by-step explanation:

Since we are given a fraction with a variable, it may seem hard at first to find out which number is greater.

First, we have to realise that -13 is a negative number. Any negative number is always equal to less than a positive number.

Whatever number we replace our variable f with, whether it be 2, 3, 9, or 0.00000000000001, we can rest assure that it will be a <em>positive</em> number.

Since positive numbers are greater than negative ones, -13 has to be less than f/2.

If the fraction was negative (- f/2), this would be a nearly impossible question to answer.

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4 years ago

What is the exponential expression for the numerical expression 5⋅5⋅5⋅5 ?

skelet666 [1.2K]

Answer:

$5^{4}$

Step-by-step explanation:

Note the number 5 is repeated 4 times, hence we can say that the expression 5⋅5⋅5⋅5 is equivalent to 5 raised to the power of 4 or $5^{4}$

edit : correct spelling

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4 years ago

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Lena [83]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

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Dmitry_Shevchenko [17]

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3 years ago

Last Sunday 1.575 people visited the amusement park % of the visitors were adults , 16% were teenagers and 28 were children ages

jasenka [17]

Answer:

882 , 252 , 441

Step-by-step explanation:

There are some mistakes in question and the corrected one is written below:

Q. Last Sunday 1,575 people visited the amusement park. 56% of the visitors were adults, 16% were teenagers, and 28% were children ages 12 and under. Find the number of adults, teenagers, and children that visited the park.

Given:

Total number of people visited amusement park = 1,575

Percent of adult people = 56%

Percent of teenagers = 16%

Percent of children = 28%

Now, we have to find number of adults, teenagers, and children that visited the park last Sunday.

Solution:

Number of adults = $56\%\ of \ 1575=\frac{56}{100}\times1575= \frac{88200}{100} =882\ adults$

Number of teenagers = $16\%\ of\ 1575=\frac{16}{100} \times1575=\frac{25200}{100} =252\ teenagers$

Number of children = $28\%\ of\ 1575=\frac{28}{100} \times1575=\frac{44100}{100} =441\ children$

Therefore, the number of adults are 882 , teenagers are 252 , and children are 441 that visited the park last Sunday.

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3 years ago