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tatiyna
3 years ago
14

What Number must you add to complete the square? x2+2x=23

Mathematics
1 answer:
Vadim26 [7]3 years ago
7 0
X = {3.898979486, -5.898979486}

x = {3.9 x -5.9}
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3. consider rolling a single die. we get the number d of the die. (10 points) a. if i tell you the number is less than 4 (d <
Semenov [28]

The probability of getting an even number, knowing that the number is less than 4, in the rolling of a single die is <u>1/3</u>.

The probability of an event = The number of favorable outcomes to the event/The total number of possible outcomes.

In the question, we are asked to find the probability of getting an even number, considering rolling a single die, where we get the number d of the die, and the number is less than 4 (d < 4).

For the number d, the total number of possible outcomes, given d is less than 4 in the rolling of a single die is 3 {viz. 1, 2, and 3}.

For the event of getting an even number, from all the possible outcomes, the number of favorable outcomes is 1 {viz. 2}.

Thus, the probability of getting an even number, knowing that the number is less than 4, in the rolling of a single die is <u>1/3</u>.

Learn more about the probability at

brainly.com/question/14192140

#SPJ4

5 0
2 years ago
Dylan invested some money into his bank.
ddd [48]

Answer:

the initial investment is $1,200

Step-by-step explanation:

The computation of the initial investment is shown below:

As we know that

Let us assume the investment be 100

So, the investment increased be 72

So,

Simple interest = Principal × rate of interest × time period

72 = Principal × 3% × 2 years

So, the principal is

= 72 ÷ 3% × 2

= $1,200

hence, the initial investment is $1,200

4 0
3 years ago
Rewrite the equation 4x + 5x2 = 8x – 7 in standard form and
Makovka662 [10]

Answer:

The correct option is a=5, b = -4, c=7 ....

Step-by-step explanation:

The standard form is ax²+bx+c=0

where a, b, and c being constants, or numerical coefficients, and x is an unknown variable.

The given expression is:

4x + 5x2 = 8x – 7

To make it a standard equation we will move all the values to the left hand side and 0 will be left at the right hand side.

4x+5x²-8x+7=0

Now solve the like terms and arrange the equation according to the standard form:

ax²+bx+c=0

5x² - 4x +7 =0

Here a = 5

b = -4

c= 7

Thus the correct option is a=5, b = -4, c=7 ....

4 0
3 years ago
Which expressions are equivalent to 10a - 25 + 5b
Liono4ka [1.6K]

Answer:Move −25-25.

10a+5b−25

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Is x-4 equivalent to x3•x-7
Verizon [17]

Answer:

No.

Step-by-step explanation: Assuming you mean x^3*x-7, these two equations do not produce the same line.

5 0
3 years ago
Read 2 more answers
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