Find the discriminant of the equation.Then determine the number of real or non real solutions.INCLUDE STEPS/WILL MARK BRAINLIEST ASAP

x^2+4x=-3

Answer:

The answer is below

Step-by-step explanation:

Acceleration is the time rate of change in velocity. Acceleration is given by:

Acceleration = change in velocity / time taken

Acceleration = (final velocity - initial velocity) / time

1) The Ferrari is from rest, hence initial velocity = 0. The final velocity = 100 km/h = [tex]\frac{100\ km*1000\ \frac{m}{km} }{1\ hr*\frac{3600\ s}{1\ hr} } =27.78\ m/s[/tex], time = 5 s

Acceleration = (0 - 27.78) / 5 = 5.56 m/s²

2) The car has initial velocity = 10 m/s. The final velocity = 10 m/s since velocity is constant. time = 20 s

Acceleration = (10 - 10) / 20 = 0 m/s²

3) The ball has initial velocity = 12 m/s. The final velocity = 0 m/s since it stops. time = 36 s

Acceleration = (0 - 12) / 36 = -0.33 m/s²

Answer:

i hope this helps

Step-by-step explanation:

Answer:

y = 16, don't know if I'm 100% right but hope this helps.

Step-by-step explanation:

since they both equal Y they may be equal to each other

Then you would subtract 2x from both sides canceling it out on one side

2x + 8 = 5x - 4

-2x         -2x

This would make the equation 8 = 3x - 4

next you add the 4 from both sides

8  = 3x - 4

+4         +4

This will leave you with 12 = 3x

now you divide 3 from both sides and 12/3 = 4 makes X = 4

next you take (4) and plug it in to one of the equations

y = 2(4) + 8

y = 8 + 8

y = 16

I think its 3.8?????I could be wrong

Answer:

Step-by-step explanation:

6 feet

Answer:

10

Step-by-step explanation:

Answer:

The x-value at which the two functions' values are equal is 5.

Step-by-step explanation:

Let [tex]f(x) = 3[/tex] and [tex]g(x) = x-2[/tex], if [tex]f(x) = g(x)[/tex], then:

[tex]x - 2 = 3[/tex]

[tex]x = 3+2[/tex]

[tex]x = 5[/tex]

The x-value at which the two functions' values are equal is 5.

Answer: x doesn't equal four x would have to equal -5 because it cant before because it would be a zero and there would be no solution

Step-by-step explanation: brainliest plz

Answer:

i think the number is 117

2

Answer:

23

Step-by-step explanation:

1)  (10*0.5)+(-6*-3)

2) (5)+(18) (The 18 isn't negative because of the rule that states "A negative and a negative will become positive"

3) 5+18=23

Answer:

37.46

Step-by-step explanation:

I think not sure tho

Answer:

-2.6y + 11.8

Step-by-step explanation:

Distribute -0.5 into 12y and -7 to get to this equation, 8.3 + 3.4y - 6y + 3.5.  Combine the two like terms together to get your answer which is -2.6y + 11.8.

Answer:

$100

Step-by-step explanation:

since 1 hockey mask costs $10 and you need 10 masks you can multiply 10x10 and you will get 100

Answer:

a. 180 votes were for blue

b. 60 votes were for green

Step-by-step explanation:

Fractions

It's known 5/8 of the votes of a school-wide election were for painting the school blue. Suppose there were x voters in school.

Since 5/8 were for blue, then

[tex]1-\frac{5}{8}=\frac{3}{8}[/tex]

Were for the rest of the colors. It's also known 5/9 of the remaining votes were for green, thus

[tex]1-\frac{5}{9}=\frac{4}{9}[/tex]

of the remaining votes were for red.

The votes for red are:

[tex]\frac{3}{8}\cdot\frac{4}{9}=\frac{1}{6}[/tex]

of the total voters.

We know these were 48 votes, thus

[tex]\displaystyle x=\frac{48}{\frac{1}{6}}[/tex]

[tex]x = 288[/tex]

There were 288 voters in school.

a. 5/8 were for blue, that is:

[tex]\frac{5}{8}*288=180[/tex]

180 votes were for blue

b. 288-180 = 108 votes were for others than blue, and 5/9 of them were for green:

[tex]\frac{5}{9}*108=60[/tex]

60 votes were for green and 108-60=48 votes were for red (as expected)

Answer:

2744

Step-by-step explanation:

8 divided by 2 is 4

10 + 4 is 14

and 3rd power is 14x14x14

which is 2744

Answer:74

Step-by-step explanation:

74

Answer:

x-2

Step-by-step explanation:

Answer:

-10n - 12.5

General Formulas and Concepts:

Pre-Algebra

Distributive Property

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

-2.5(-3 + 4n + 8)

Step 2: Simplify

For simplifying an expression, there are some rules about the order in which the calculations should be performed. The order of rules is called BODMAS. Each letter in this word stands for an operation.

→ -2.5(-3 + 4n + 8) = 0

→ 7.5 + (-10n) + (-20) = 0

→ 7.5 - 10n - 20 = 0

→ -10n - 20 + 7.5 = 0

→ -10n - 12.5 = 0

→ -10n = 12.5

→ n = 12.5 ÷ -10

→ n = -1.25

Question:

Lisa walks at an average speed of  6 km/h for 15 hours.

Dan completes the same distance in  an hour.  Calculate Dan's average speed.​

Answer:

[tex]Speed = 90km/hr[/tex]

Step-by-step explanation:

Given

Lisa:

[tex]Speed = 6km/hr[/tex]

[tex]Time = 15\ hr[/tex]

First, we calculate the distance covered by Lisa:

[tex]Distance = Speed * Time[/tex]

[tex]Distance = 6km/hr * 15\ hr[/tex]

[tex]Distance = 90km[/tex]

So, Dan distance can be represented as:

[tex]Distance = 90km[/tex] --- Dan completes the same distance as Lisa

[tex]Time = 1\ hr[/tex] -- Time to complete the distance

Dan's average speed is:

[tex]Speed = \frac{Distance}{Time}[/tex]

[tex]Speed = \frac{90km}{1\ hr}[/tex]

[tex]Speed = 90km/hr[/tex]

Hence, Dan's average speed is 90km/hr

Answer:

a

Step-by-step explanation:

hope this help mark me brainlist plz

The correct sequence of transformations takes A to its image A' is,

⇒ A translation 1 unit down followed by a reflection in the x-axis.

A transformation that occurs when a figure is moved from one location to another location without changing its size or shape is called translation.

We have to given that;

The sequence of transformations takes A to its image A'.

Now, We have;

The coordinate of A are (4, 5)

And, The coordinate of A' are (4, - 4)

Hence, The correct sequence of transformations takes A to its image A' is,

⇒ A translation 1 unit down followed by a reflection in the x-axis.

Learn more about the transformation visit:

https://brainly.com/question/30097107

#SPJ3

Answer:

7/10 goes in one of those boxes

Answer:

the very left box is 3/4

the bottom one is 9/20

the right one is 7/10

Answer:

94

Step-by-step explanation:

Given the addition problem:

58 + 36

We can form a table :

5 _______ 8

+

3 _______ 6

9 4

Hence, (58 + 36) = 94

Answer: 0.44

Step-by-step explanation:

First, let's count the total number of four-digit numbers.

Let's think it as four empty slots:

_ _ _ _

In each slot, we can put a single digit.

In the first slot, we have 9 options {1, 2, 3, 4, 5, 6, 7, 8, 9}

The zero is not an option here, because if there was a 0, this would be a 3 digit number, then the 0 can not be in the first slot.

For the second slot we have 10 options {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

for the third slot we have 10 options {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

for the fourth slot we have 10 options {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

The total number of combinations is equal to the product between the numbers of options for each slot, this means that we have:

Combinations = 9*10*10*10 = 9000

So there are 9000 different 4 digit numbers.

Now we want to find the probability of selecting a number at random that is equal or smaller than 5000.

Let's see the number of 4-digit numbers that are equal or smaller than 5000.

The smallest 4-digit number is 1000.

Then the number of numbers between 1000 and 5000 is:

5000 - 1000 = 4000

This means that there are 4000 4-digit numbers that are equal or smaller than 5000.

Now, the probability of selecting one of them at random is equal to the quotient between the number of 4-digit numbers that meet the condition (4000) and the total number of 4-digits (9000)

Then te probability is:

P = 4000/9000 = 4/9 = 0.44

T

Answer:

x = 4

Step-by-step explanation:

-18 = -5x-(-2)

-18 = -5x+2

5x-18 = 2

5x = 2+18

5x = 20

[tex] \frac{5x}{5} = \frac{20}{5} [/tex]

[tex]x = 4[/tex]

Answer : 8*d -4. and. 8*d -4 + 4

Answer:

4(2d-1) and 2(4d-2)

Step-by-step explanation:

Answer:3

Step-by-step explanation:

Answer:

Y=2x-2

Step-by-step explanation:

Slope intercept form is also known as y=mx+b

The slope of a line is rise over run. In this case that would be 2/1 which simplifies to 2

The intercept is where the line crosses the y axis, which is at -2

So your equation would be y=2x-2

Answer:

26+18%=30.68

30.68 - 26.00 = 4.68

4.68 = Tip

Step-by-step explanation:

Subtotal- $26.00

18% Tip- $4.68

Total= $30.68

Hope this helped :)

Answer:

You first have to work out T O U and the answer will be a negative. This means that it will be within another angle

Answer: C 64

Step-by-step explanation: