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alisha [4.7K]
3 years ago
13

Solve this quadratic form 3x-2x²=7 this is grade 9​

Mathematics
1 answer:
Pani-rosa [81]3 years ago
7 0

Answer:

x

=

3

±

i

√

47

4

x=3±i474

Step-by-step explanation:

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Write an expression for the calculation the difference of the products of 5 and 2 and 5 and 1
oee [108]
Let's review the terminology.  A product is what you get when you multiply two numbers.  So, the product of 5 and 2 is basically "5*2," and the product of 5 and 1 is "5*1."

The difference means when you subtract one from the other.  So, the difference of 5*2 and 5*1 means "(5*2)-(5*1)".  (Note: I put in parentheses to make sure the reader understands that 5*2 is separate from 5*1.  5*2-5*1 is confusing: you might not know what to do first!)

So, "(5*2)-(5*1)" can be your answer, OR you can simplify it further by actually doing the multiplication: "10-5".  If you want the answer, just subtract--the expression is equal to 5.

Answer: "<span>(5*2)-(5*1)" OR "10-5" OR "5"</span>
3 0
3 years ago
A nursery sells plants in flats. There are 6 plants in each tray. Each flat has six trays. The nursery sold 18 flats on Saturday
marshall27 [118]

For this case we have to:

There are 6 plants per tray.

There are 6 trays for each flat, so for each flat there are 6 * 6 = 36 plants.

Saturday day:18 flat * 36 plants = 648

Thus, on Saturday they sold 648 plants.

Sunday: 21 flat * 36plants = 756

Thus, on Saturday they sold 756 plants.

Thus, in total 648 +756 = 1404plants were sold.

Answer:

648 +756 = 1404 plants were sold.

3 0
2 years ago
Solve for x round to nearest tenth
yawa3891 [41]

Answer:

33.3

Step-by-step explanation:

tan A = opp/adj

tan 39° = 27/x

x tan 39° = 27

x = 27/(tan 39°)

x = 33.3

5 0
2 years ago
^
love history [14]

Answer:

B. x < -1

Step-by-step explanation:

Hello!

Let's put them in order from greatest to least:

  • \{-2,-5,-9,-12\}

Given our possible inequalities, we need to find the inequality that contains all of these values.

The inequality that works is x < -1, as <u>all values are less than -1.</u>

Therefore, the answer is B. x < -1.

4 0
1 year ago
When using a debit card: A:There are always fees. B:Identification is always required. C:You still need to record transactions i
Komok [63]

Answer:

D.

Step-by-step explanation:

Since this isn't a credit card, there are no interests or fees on a debit card, so A is incorrect. B is also incorrect. You only need identification when you are withdrawing or depositing at a bank, but purchases made in stores or online do not need your identification. You also don't need to record transactions in your checkbook (but it is recommend to keep track of purchases). Modern day technology already records transaction history and all you need to do is access it online.

D is correct because if someone steals your PIN for your debit card, they could go to stores and use that money. You can dispute charges and report to the bank if that happens.

7 0
3 years ago
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