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Novay_Z [31]
3 years ago
8

(x-9)(x+2) see if u can find it

Mathematics
1 answer:
ycow [4]3 years ago
4 0

Answer:

x^2 -7x-18

Step-by-step explanation:

(x-9)(x+2)

FOIL

first  x*x = x^2

outer 2x

inner -9x

last -9*2 =-18

Add together

x^2 +2x-9x-18

Combine like terms

x^2 -7x-18

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John grew 36 plants with 12 seed packets. With 15 seed packets, how many total plants can John have in his backyard?
tigry1 [53]

Answer: he can have 45 plants

8 0
2 years ago
I will give brainiest to whoever answers correctly !!
NemiM [27]

Step-by-step explanation:

A) In order to calculate the interest , we can use the following formula :

P=P_{0}.(1+i)^{t}

Where P is the interest , P0 is the initial value, i is the interest and t is the time.

So , using P0 =600,i= 0.0005768 and t=27 ,we have :

P=600.(1+0.0005768)^{27} \\P=600.(1.01569)\\P=609.41

Calculating only the interest, we have :

I=609.41-600\\I=9.41\\

So the interest is $9.41.

B) He paid the final value calculated above, that is , $609.41.

PLEASE MARK ME AS BRAINLIEST

5 0
3 years ago
Ellen wants to purchase a book that is regularly priced at $18. The book is discounted 15%. She also needs to pay a 6% sales tax
Viefleur [7K]

Answer:

Ellen will pay $16.22 for the book.

Step-by-step explanation:

Part 1:

We know that the book Ellen wants to buy has a normal price of $18. However, there is a 15% discount. So, let's calculate 15% of $18.

18 x 0.15 = $2.70

This lets us know that there is a $2.70 discount.

Now, let's subtract the discount from the regular price.

18 - 2.70 = $15.30

So, now we know the discounted price is $15.30

Part 2:

We also know that Ellen has to pay 6% sales tax. The discounted price is 100% of the price, plus 6% is 106%. Let's calculate the tax to figure out the total amount.

15.30 x 1.06 = $16.22 when rounded to the nearest cent.

Therefore, Ellen will pay the total amount of $16.22.

3 0
3 years ago
Read 2 more answers
Which function represents a proportional relationship? A) f(x) = 3x 4 B) f(x) = 3 4x C) f(x) = 3x 4 + 3 4 D) f(x) = 3 4x + 3 4
densk [106]

Answer: OPTION B

Step-by-step explanation:

The equation of a line that passes through the origin is the following:

y=mx

Where "m" is the slope of the line.

By definition, Proportional relationships have the following form:

y=kx

Where "k" is the Constant of proportionality.

Then, as you can notice, if you graph a Proportional relationship you will get a line that passes through the origin.

Therefore, based on the explained above, you can conclude that the option that shows a function  that represents a Proportional relationship is the Option B.

Then, this is:

f(x)=\frac{3}{4}x

6 0
3 years ago
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Give the domain and range.
777dan777 [17]

Answer:

the answer is c

7 0
3 years ago
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