Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth. x^2 + 3 = -4x

A. 1,3
B. -1,-3
C. 1,-3
D. -1, 3

Answers

Answer 1

Answer: Hello,

x²+4x+3=0
x=(-4-2)/2=-3 or x=(-4+2)/2=-1

Answer B (-1,-3)

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Which of the following similarity statements about the traiangles in the figure is true

Answers

the second one I hope I am correct

Variable c is 5 more than variablea. Variable c is also 3 less than variable
a. Which pair of equations best models the relationship between c and a?

c = a − 5
c = a + 3

a = c + 5
a = 3c − 3

a = c − 5
a = 3c + 3

c = a + 5
c = a − 3

Answers

The pair of equations best models the relationship between c and a is option D : c = a + 5, c = a - 3

What is a system of equations?

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

The given conditions are;

c is 5 more than variable a.

( c = a + 5)

c is also three less than variable a.

(c = a - 3)

Now, lets look at the answer choices,

c = a − 5

c = a + 3

Here, c is 5 less than "a". so it will be automatically disqualified.

a = c + 5

a = 3c − 3

So,

Simplified version :

c = a - 5

Here, c is 5 less than "a"..so it will be automatically disqualified.

a = c − 5

a = 3c + 3

Here also, we have to get "c" by itself in both top and bottom equation.

So,

Simplified version:

c = a + 5

Here, c is 5 more than "a"

c = (a - 3) / 3

thus, c is 3 less than "a" divided by 3 . So, this is not correct.

c = a + 5

c = a − 3

Here, c is 5 more than "A"

Also, c is 3 less than "a"

So, Which satisfies the given.

So, our answer is going to be the option D :

c = a + 5

c = a - 3

Learn more about equations here;

brainly.com/question/10413253

#SPJ5

First, let us restate the given conditions

c is 5 more than variable a ( c = a + 5)
c is also three less than variable a (c = a - 3)

Now, lets look at the answer choices and or given
c = a − 5
c = a + 3
Here, c is 5 less than "a"...so automatically disqualified

a = c + 5
a = 3c − 3
Here, we have to get "C" by itself in both top and bottom equation.
So,
Simplified version :
c = a - 5
Here, c is 5 less than "a"...so automatically disqualified

a = c − 5
a = 3c + 3
Here also, we have to get "C" by itself in both top and bottom equation.
So,
simplified version:
c = a + 5
Here, c is 5 more than "a"...so we continue
c = (a - 3) / 3
Here, c is 3 less than "a" divided by 3 . So, this is not correct

c = a + 5
c = a − 3
Here, c is 5 more than "A"
Also, c is 3 less than "a"
Which satisfies the given.

So, our answer is going to be the last one:

c = a + 5
c = a - 3

What is the maximum of the sinusoidal function?

Enter your answer in the box.

Answers

Answer:

Step-by-step explanation:

Given is a graph with more than 2 periods shown. The wave represents that it is the sine function.

From the graph we find that the graph gets its maximum at y=-2 and minimum at y =-6

Hence range =[-6,-2]

Amplitude = 2

There is no x intercept but y intercept =-4

Hence the possible equation would be

y = 2sin(bx+k)-4

for some real b and k

Since sine max value is 1, we have

Maximum value is 2-4 =-2

Hello from MrBillDoesMath!

Answer:

y = -2

Discussion:

From the graph the maximum value or "highest point" on the function appears to be

y = -2

Thank you,

MrB

What is an expression for 43 more than t

Answers

43 more than t

t + 43

43 more than t = Variable + 43

$t+43$

What would be the value of Pearson’s r (simply the square root of r2)? R² = 0.785

Answers

Every equation that has anything squared in it is
going to have two solutions.

The solutions of R² = 0.785

are R = 0.886... (rounded)
and R = -0.886... (rounded) .

When you multiply EITHER of those numbers by itself, you get
0.785 , so both of them make the equation a true statement.

R^2 = 0.785

Take the square root of both sides

√R^2 = √0.785
R= 0.886

Johnny bought 7 stamps for 1.12. how much does each stamp cost