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uysha [10]
3 years ago
11

/PLEASE/ Help!!

Mathematics
2 answers:
Lubov Fominskaja [6]3 years ago
6 0
The answer usually question what does this question do you think Association
grigory [225]3 years ago
4 0

did you ever find any answers?

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Solving Quadratic Equations
NISA [10]

Answer:

a) x= 5 or x= -3

b) x = -4 + \sqrt{26} or -4 - \sqrt{26}

Step-by-step explanation:

a) x^{2} - 2x - 15 =0

x = \frac{-(-2) +\sqrt{(-2)^{2} - 4(1)(-15)}}{2(1)}  or  \frac{-(-2) -\sqrt{(-2)^{2} - 4(1)(-15)}}{2(1)}

x= 5 or x=-3

b) x^{2} + 8x - 10 =0

x = \frac{-(8) +\sqrt{(8)^{2} - 4(1)(-10)}}{2(1)}  or  \frac{-(8) -\sqrt{(8)^{2} - 4(1)(-10)}}{2(1)}

x = -4 + \sqrt{26} or -4 - \sqrt{26}

7 0
3 years ago
6- Nov 19 P1 #
denis23 [38]

Answer:

a=14

b=6

c=5

Step-by-step explanation:

x-6\sqrt{x}  + 4 = 0

x +4 =6\sqrt{x}

x^2 + 8x + 16 = 36x

x^2 - 28x + 16 = 0

14 ±6\sqrt{5}  

 

4 0
3 years ago
Evaluate d – 6.3 when d = 4.26.
ki77a [65]
D - 6.3

Plug in 4.26 for 'd':

4.26 - 6.3 = -2.04
8 0
4 years ago
In the integer card game, you drew the cards,2,8,and -11. Your partner gave you a 7 from his hand. A. What is your total? B. Wha
Flauer [41]

a) At this point, your total is 6.

b) You need to draw a card with the number -6.

<h3>What is your total?</h3>

In the integer card game, your total is equal to the sum of the values in your cards.

So, you have 2, 8, and -11, and then your partner gave you a 7 from his hand, then your total will be:

T = 2 + 8 + (-11) + 7 = 17 - 11 = 6

At this point, your total is 6.

<h3>b) What cards would you need to get your score back to zero? </h3>

The value of the card must be such that when we add the value of the card to the current total, the outcome is 0.

So the value of the card must be equal to the additive inverse of your total, where the additive inverse of a number is another number such that when you add these two numbers the outcome is 0.

So if your total is 6, then:

6 + a = 0

a = -6

This means that you need to draw a card with the number -6.

If you want to learn more about additive inverses:

brainly.com/question/1548537

#SPJ1

4 0
1 year ago
Exponentiation is the raising of one number to the power of another. This operation is performed using two asterisks **. Let's u
Harlamova29_29 [7]

In math, Exponentiation refers to the operation of raising one quantity to the power of another. See the program running the exponentiation below.

<h3>What is the required code?</h3>

The code is given below:

number_of_days = 30

amount_after_30days = 0.01 * (2 ** number_of_days)

# print the amount

print(amount_after_30days)

Learn more about exponentiation at;
brainly.com/question/11975096
#SPJ1

4 0
2 years ago
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