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pav-90 [236]
2 years ago
7

-2x^2+6x+7=2x-3 by quadratic formula

Mathematics
1 answer:
mash [69]2 years ago
8 0

Answer: There is no real solution because the discriminant is negative. Nevertheless, x is √6 + 1 or 1 - √6. However, these solutions are not real because the discriminant is negative.

Explanation: The square root of a negative number is not a real number.

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Find the unit rate with the numbers 12 and one and one half
kati45 [8]

Answer:

The value of the unit rate is 8

Step-by-step explanation:

we know that

To calculate the unit rate simply divide the first number by the second number

so

12:1\frac{1}{2}

Convert mixed number to an improper fraction

1\frac{1}{2}=1+\frac{1}{2}=\frac{1*2+1}{2}=\frac{3}{2}

substitute in the expression above

12:\frac{3}{2}=\frac{24}{3}=8

4 0
3 years ago
HELP DUE IN 10 MINS! Use right triangle trig to solve for the missing angles. Round all answers to the nearest degree (whole num
pogonyaev

Answer:

relationship between base and perpendicular is given by tan angle

tan ?=perpendicular./base

tan?=5/16

?=tan-¹(5/16)=17.35=17

7 0
3 years ago
A person draws a card from a hat. Each card is one color, with the following probabilities of being drawn: 1/20 for blue, 1/10 f
FromTheMoon [43]

Answer:

1/4

Step-by-step explanation:

4 0
3 years ago
I need help on how to solve the problem and the correct answer :)
lakkis [162]

This is a system of linear equations. First, you can add the two equations together to eliminate the y so that you can solve for x:

-5x + -7x = 0 + -96

-12x = -96

x = 8

Use x to solve for y:

-5 * 8 + 8y = 0

Add 40 to both sides and divide by 8:

y = 5

So, x = 8 and y = 5.

3 0
4 years ago
Cory earns $20 for every lawn he mows and $9 for every hedge he trims. He uses the expression 20x + 9y to keep track of his earn
34kurt
<h2>a. 20 & 9 are the coefficients and x & y are the variables of the expression.</h2><h2>b. There are 2 terms in the expression they are 20x & 9y the reason why is  because the two terms are separated by addition</h2><h2>c. The term that shows the total of every hedge that was trimmed is 9y </h2><h2 />
3 0
3 years ago
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