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vovikov84 [41]
3 years ago
10

Math help how do I do this and what should I get for the answer

Mathematics
1 answer:
umka2103 [35]3 years ago
7 0

f(x) = 2x + 1
g(x) = x ^{2} + 3x + 7
With these 2 equations all we have to do is just substitute it for f and get

2x + 1(x {}^{2} + 3x + 7)
Then just apply the distributive property

Just in case see if there are other ways of doing it
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A sweatshirt is discounted 30%. If the discount is $9, what was the original price of the sweatshirt? Please show your work.
ArbitrLikvidat [17]

Answer:

$30

Step-by-step explanation:

Let the price of sweatshirt be $x.

Discount percentage = 30%

Discount in dollars = 30% of $x

Discount in dollars = 30/100 of $x = $ 30x/100

Given that discount in $ is 9

thus

30x/100 = 9

x = 9*100/30 = 30

Thus, the original price is $30

6 0
4 years ago
Find the value of x if Sin80 = Cos( 90 -x)
natita [175]

Answer:

80

Step-by-step explanation:

\sin(80)  =  \cos(10)  \\ 90 - x = 10 \\ x = 80

5 0
3 years ago
.<br> explain the relationship of density to volume and mass
astraxan [27]
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7 0
3 years ago
Need help with this math​
Angelina_Jolie [31]

Answer:

205

Step-by-step explanation:

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Hope this helps bud:)

3 0
3 years ago
Read 2 more answers
Plz help me with this
Nana76 [90]
This question is not even trying to test your arithmetic.  It's just testing
to see whether you know how to read numbers in words properly.

When you read numbers in words, the only time you ever say "and"
is for a decimal point.  There are no decimals in this question, so the
"and" is not a part of any numbers.

The question gives you two numbers. The word "and" is the marker
that's BETWEEN them.  The two numbers are 1,300 and 950 .

The first thing the question wants you to do is write the numerical
expression for all the words.  That's    (1300 - 950) / 4 .

The next thing you're supposed to do is"evaluate the expression" ...
find out what number it all boils down to.  I don't think you'll have
any trouble with that now.
3 0
3 years ago
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