What are the exact solutions of x2 − 5x − 7 = 0, where x equals negative b plus or minus the square root of b squared minus 4 times a times c all over 2 times a?

x = the quantity of negative 5 plus or minus the square root of 3 all over 2
x = the quantity of 5 plus or minus the square root of 3 all over 2
x = the quantity of negative 5 plus or minus the square root of 53 all over 2
x = the quantity of 5 plus or minus the square root of 53 all over 2

Answer:

D :)

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Answer:

144 €

Step-by-step explanation:

If you begin with 192 € and these funds decline (go down) by a quarter, you'll end up with

(1.00 - 0.25)(192 €) = 144 €

Answer:

This sentence shows Elion's determination and commitment to learn.

Step-by-step explanation:

During this time she also took classes at New York University, where she earned a master's degree in 1941.

The way in which sentence 4 assists in developing the key idea of the paragraph would be:

B). This sentence shows Elion's determination and commitment to learn.

Thus, option B is the correct answer.

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Three $20 bills is a total of $60

$60 - $12 = $48

He spent a total of $48 on the books

Divide the total spent by the number of books:

48 / 3 = 16

Each book cost $16

Answer:$12 per book

Step-by-step explanation: $20 x 3= $60

If you have $12 change you minus that from the $60

Now that is $48 for 4 books.

To work out one book you do $48/4 which is $12 per book.

Answer:

506 square inches

Step-by-step explanation:

length=22 inches

breadth=23 inches

area=length *breadth

area=22*23=506 squareinches

Answer:

506 inches

Step-by-step explanation:

22 times 23 equals 506 inches.

Answer:

y=2x+3

Step-by-step explanation:

Answer:

y=2x+3

Step-by-step explanation:

Answer: To fill the rectangular prism, 4 cubes are needed.

Step-by-step explanation:

Hi, to answer this question we have to calculate the volume of the prism and divide it by the volume of one cube:

Volume of a rectangular prism = Length x width x height

V P = 6x3x412 = 7,416 cm3

Volume of a cube = side length^3

VC = 12^3 = 1,728 cm3

Finally;

Volume of the prism / volume of one cube = 7,416 /1,728 = 4.29 = 4 cubes

Feel free to ask for more if needed or if you did not understand something.

Answer:

I'm pretty sure he is correct but I have not completed the test quite yet. Refer to him if you want.

Step-by-step explanation:

Answer:

B 6/12

Step-by-step explanation:

The first step is to set up your fraction like so:  [tex]\frac{2}{3} x \frac{3}{4}[/tex]

Next you will multiply across the top 2·3=6 (this will become your numerator)

Then you will multiply across the bottom 3·4=12(this will become your denominator)

if asked it can be simplified to 1/2 if not your final equation will look like:

Answer: the probability that the student scored 573 or greater on the exam is 0.31

Step-by-step explanation:

Let x be the random variable representing the math scores on the SAT exam. Since it is normally distributed and the population mean and population standard deviation are known, we would apply the formula,

z = (x - µ)/σ

Where

x = sample mean

µ = population mean

σ = standard deviation

From the information given,

µ = 514

σ = 118

the probability that the student scored 573 or greater on the exam is expressed as

P(x > 573) = 1 - P(x ≤ 573

For x = 573,

z = (573 - 514)/118 = 0.5

Looking at the normal distribution table, the probability corresponding to the z score is 0.69

P(x > 573) = 1 - 0.69 = 0.31

Answer:

proper answer pls

Step-by-step explanation:

Answer:

105 degrees

Step-by-step explanation:

Corresponding angles

Answer:

x = 105⁰( corresponding angles)

Answer:

3 m is the displacement

Step-by-step explanation:

because the distance traveled is how much you really move necessarily is the distance from where you started to where you ended in a sraight line, not every single move you made, and the displacement is how much you moved altogether in any and every direction even if you went in circles. hope this helps!! love yawl, stay safe!! <3 <3 <3 <3 <3 <3 <3

The displacement of the cart will be "3 m".

Towards the right,

The distance covered by the cart is:

= 2 m

Towards the left,

The distance covered:

= 1 m

hence,

→ [tex]Total \ distance = Sum \ of \ the \ distances[/tex]

                           [tex]=2 +1[/tex]

                           [tex]=3 \ m[/tex]

So the above answer is correct.

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Answer:

I would rather have the pool that is 40ft x 9ft x 4ft.

Step-by-step explanation:

I hope this helps!

Answer:

[tex]x=-\frac{5}{7}[/tex]

Step-by-step explanation:

[tex]2(4x+3)=x+1[/tex]

[tex]8x+6=x+1[/tex]

[tex]8x-x=1-6[/tex]

[tex]7x=-5[/tex]

[tex]x=\frac{-5}{7}[/tex]

Answer:

x = -5/7

Step-by-step explanation:

2(4x+3)=x+1

Distribute

8x +6 = x+1

Subtract x from each side

8x+6-x = x+1-x

7x+6 = 1

Subtract 6 from each side

7x+6-6 = 1-6

7x =-5

Divide each side by 7

7x/7 = -5/7

x = -5/7

Answer:

(5,-2)

Step-by-step explanation:

Multiplying the first equation by 2 we get

2x+6y=-2

Subtracting the second equation we get

4y=-8

y=-2

Plugging y as -2 into the equation we get x=5

Answer:

(5, -2)

Step-by-step explanation:

x + 3y = −1  

2x + 2y = 6 ⇒ x+y=3

Subtract second equation from the first one:

Answer:The answer is D the last one.

Answer:

D on edu

Step-by-step explanation:

Answer:

$55

Step-by-step explanation:

do PEMDAS

do parenthesis first

then multiply

6.75 plus 4.25 is 11

multiply 11 by 5

The answer of question no 5 is 46

The answer of question no 6 is 79

Look at the attached picture

Hope it will help you

Answer:

The answer is -54. Please mark as brainliest :)

Step-by-step explanation:

Y is directly proportional to x. So....

y=kx

6=-2k

-3=k.

y=-3*18

y=-54.

When the athlete drink 16 ounces of water every two hours for the next 14 hours,

(A) The athlete consumes 3.5 quartz of water.

(B) The athlete consumes 7 pints of water.

16 ounces = 1 pint

1 quart = 32 ounces.

The total duration for which athlete consumes the water is 14 hours with a after every 2 hours.

The total number of times the water consumed by athlete is 14/2 = 7.

Covert the 16 ounces of water in quarts

= 16/ 32

=1/2

The total quantity of water consumed in quarts is

= 7×(1/2)

= 3.5 quarts

Thus, the amount of water consumed by athlete in entire 14 hours is 3.5 quarts.

The total duration for which athlete consumes the water is 14 hours with a after every 2 hours.

The total number of times the water consumed by athlete is 14/2 = 7.

Convert 16 ounce of water into pint

= 16/16

= 1

The total quantity of water consumed in pints is

= 7×1

= 7

Thus, the amount of water consumed by athlete in entire 14 hours is 7 pints.

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Answer: The answer is C. C in your given options.

Step-by-step explanation:

 Learn baseball    Do not learn baseball      Total

Learn basketball                    0.63                        0.37                             1

Do not learn basketball        0.84                         0.16                             1

Total                                       0.72                         0.28                             1

Answer:

C

Step-by-step explanation:

Learn baseball    Do not learn baseball      Total

Learn basketball                    0.63                        0.37                            

Do not learn basketball        0.84                         0.16                            

Total                                       0.72                         0.28                            

Hope this helps!

Answer:

x = 2, x = - 2

Step-by-step explanation:

3x² - 12 = 0

3x² = 12

x²= 12/3

x²= 4

√x² = +/- √4

x = +/- 2

x = 2, x = -2

Answer:

option B

Step-by-step explanation:

We can see in the graph that the function has two values of x where the value of y goes to infinity: x = -6 and x = 6.

These points where the value of the function goes to infinity usually are roots of the polynomial in the denominator of a fraction (when the values of x tend to these values, the denominator of the fraction tends to 0, so we have a discontinuity in the function).

So the option that represents a function that have these points in x = -6 and x = 6 is the function in option B.

The other options show functions that have only one point that goes to infinity.

Answer:b

Step-by-step explanation:

Answer: interest = 180

Amount 1000 + 180 = 1180

Step-by-step explanation:

SI = prt / 100

(1000 x 3 x 6)/100

18000/100 = 180

Answer:

m=50

Step-by-step explanation:

m=4a+2c

m= 4(10)+2(5)

m= 40+10

m=50

Answer:

6n -37

Step-by-step explanation:

The slope would be the derivative of the function

dy/dx = 6x - 37  evaluated at the point n

dy/dx = 6n -37

Answer:

6n - 37

Step-by-step explanation:

The derivative of the function f(x) gives the gradient (slope) of the tangent to the graph of y = f(x) at the point (x, y).

Given:

[tex]y=3x^2-37x+6[/tex]

Therefore, the gradient (slope) of the given curve at x is:

[tex]\implies \dfrac{dy}{dx}=2 \cdot 3x^{2-1}-37x^{1-1}+0[/tex]

[tex]\implies \dfrac{dy}{dx}=6x-37[/tex]

To find the slope, simply substitute x for n:

[tex]\implies 6n-37[/tex]

Answer:

15.6

Step-by-step explanation:

First, multiply the midpoint of each class by its frequency, as follows:

            Class      midpoint   frequency   midpoint*frequency  

            0-9         4.5             24                4.5*24 = 108

            10-19      14.5            20                14.5*20 = 290

            20-29    24.5           32                24.5*32 = 784

Total                                      76               1182

The mean is computed as the division between the addition of the "midpoint*frequency" column by the addition of "frequency" column.

mean = 1182/76 ≈ 15.6

Answer:

Step-by-step explanation:

1/4

0.75= 75/100=3/4

-3=-12/4

The following is a rational number and represents them on the same number line:1/4 0.75 and -3 is

1/4

0.75= 75/100=3/4

-3=-12/4

A rational number is a number that is in the form of p/q, where p and q are integers, and q is not equal to 0. Some of the examples of rational numbers include 1/3, 2/4, 1/5, 9/3, and so on.

A rational number is any number that can be expressed as a fraction or ratio of two integers. For example, 3/4, 8.75, 2, and -6 are all considered rational numbers. Note that integers, or "whole numbers", are rational numbers. This is because they can be expressed as fractions.

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