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weeeeeb [17]
3 years ago
5

Solve the equation by using the quadratic formula.

Mathematics
2 answers:
Luda [366]3 years ago
7 0

Answer:

The answer is B

Step-by-step explanation:

Sergeeva-Olga [200]3 years ago
4 0

Answer:

B

Step-by-step explanation:

2x² + 5x -3 = 0

2x² - x + 6x - 3 = 0

x(2x-1) + 3(2x-1) = 0

(x+3) (2x-1) = 0

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During the first year Sherry worked as a lifeguard, she was paid at a rate of $12.75 per hour.
lara [203]

Answer:

a

Step-by-step explanation:

5 0
3 years ago
Which graph shows this system of equations?
SashulF [63]

Answer:

I believe it is B tell me if I am wrong please

8 0
3 years ago
Is (4, 2) a solution to the equation y = x2 − 7x?
sergey [27]

Answer:

not rlly

Step-by-step explanation:

you need more information to solve that type of equation

8 0
3 years ago
Read 2 more answers
Katherine v
maks197457 [2]

Answer:

13/102

Step-by-step explanation:

In a standard deck of 52 cards, there are 13 black spades, 13 black clubs, 13 red diamonds and 13 red hearts. There are 26 <u>black </u>cards in the deck of 52 cards.

Probability of drawing a black card = 26/52 = 1/2

Suppose we drew the black card. There are now <u>only 51</u> cards left in the deck. ALL of the hearts are still there - <u>13</u> of them.

Probability of drawing a heart from this deck of 51  = 13/51

In general, for the probability of event A <u>and then</u> event B, we multiply.

1/2 x 13/51 = 13/102

6 0
3 years ago
You deposit $200 in an account earning 3.5% simple interest how long will it take for the balance of the account to be $221
Rus_ich [418]

It takes 3 years for the balance of account to be $ 221

<em><u>Solution:</u></em>

From given information,

Principal = $ 200

Rate of interest = 3.5 %

Amount after "n" years = $ 221

To find: number of years

In simple Interest,

Simple interest = amount earned - principal

Simple interest = 221 - 200 = 21

Thus simple interest earned is $ 21

<em><u>The formula for simple interest is given as:</u></em>

simple\ interest = \frac{ p \times n \times r}{100}

Where,

p is the principal

n is the number of years

r is the rate of interest per annum

Substituting the given values in formula,

21 = \frac{200 \times n \times 3.5}{100}\\\\21 = 2n \times 3.5\\\\n = \frac{21}{7}\\\\n = 3

Thus it takes 3 years for the balance of account to be $ 221

7 0
3 years ago
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