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Strike441 [17]
3 years ago
7

Solve x^2 – 3x = –8 using the quadratic formula.

Mathematics
1 answer:
Zina [86]3 years ago
3 0

Answer:

on your scientific calculator click on MODE then number 5 then number 3 and put those numbers x^2 – 3x = –8

(AFTER WRITING EACH NUMBER CLICK ON = SO YOU CAN PUT THE OTHER NUMBERS. FOR EXAMPLE, WRITE 1 AS A THEN CLICK = AND SO ON)

1 and A  (write 1 first then click =)

-3 as B   (write -3 then click =)              

+8 as C  (write 8 then click =)

then you will get the answer of x1 and 2

Step-by-step explanation:

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Divide. −2 4/7 Enter your answer as a mixed number, in simplified form,
jarptica [38.1K]
I guess it's -24/7. So 24 divided by 7 is 3 remainder 3
The minus sign remains. So that will be -3 3/7
Hope I helped. Goodluck
5 0
3 years ago
Please I need help and I need more practice one this please
PSYCHO15rus [73]
? = 30 because your number is increasing by -8 how to figure it out is by taking 14 - 6 = 8
7 0
3 years ago
how many pounds of coffee worth $10 a pound should be added to 20 pounds of coffee worth $4 a pound to get a mixture worth $5 a
Solnce55 [7]

Answer:

4

Step-by-step explanation:

1. if the mass of coffee worth $10 is 'x', then its worth is 10x, and the worth of the mixture is 5(x+20);

2. using the previous item it is possible to write the next equation:

5(x+20)=4*20+10*x; ⇒ x=4.

3. the required mass is 4 pounds.

5 0
3 years ago
At the afternoon matinee movie, 2 adult tickets and 4 child tickets cost $32, and 4 adult tickets and 3 child tickets cost $44.
Yuliya22 [10]

Answer:

2x + 4y = 32

4x + 3y = 44

Step-by-step explanation:

From the information supplied in the question, we can see that 2 adult tickets and 4 child tickets cost $32. This means we multiply the cost of an adult ticket by 2 and add it to the product of 4 child tickets and its price I.e y.

We can also see that to get a total cost of $44, 4 adult tickets and 3 child tickets were bought. Hence, we simply multiply the cost of an adult ticket by 4 and add it to the product of 3 child ticket and its price

8 0
3 years ago
Over the summer, for every 14 okra seeds Dana planted, 9 grew into plants. If he planted 210 okra seeds, how many grew into plan
Katena32 [7]
210s(9p/14s)=135p

So 135 seeds grew into plants.
8 0
4 years ago
Read 2 more answers
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