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Elena-2011 [213]
3 years ago
11

Will give brainliest to correct answer.

Mathematics
2 answers:
o-na [289]3 years ago
7 0
Use Pythagorean's Theorem to solve for c.  c^2=(2 \sqrt{x^2+3x})^2+(3)^2.  We will simplify the right side by squaring both terms.  c^2=4(x^2+3x)+9  which simplifies even further to  c^2=4x^2+12x+9.  In that polynomial, the leading coefficient, 4, is a perfect square, and so is the constant at the end, 9.  So that polynomial is the sum of perfect squares.  It will break down like this:  c^2=(2x+3)^2  so then taking the square root of both sides gives us that c = 2x + 3, choice on the top right.
Anna71 [15]3 years ago
7 0
The correct answer would be C=2x+3
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Write the equation described in each case.
Lapatulllka [165]

Answer:

The Answer is: y = -1/4x + 6

Step-by-step explanation:

Given point: (4, 5)

Given equation: y = -1/4x - 11

Slope: m = -1/4, a parallel line will have the same slope.

Start with the point slope form and solve for y:

y - y1 = m(x - x1)

y - 5 = -1/4(x - 4)

y - 5 = -1/4x + 1

y = -1/4x + 1 + 5

y = -1/4x + 6

Proof:

f(x) = -1/4x + 6

f(4) = -1/4(4) + 6

= -1 + 6 = 5, giving (4, 5)

Hope this helps!! Have an Awesome day!!! :-)

4 0
3 years ago
The variable z is directly proportional to x, and inversely proportional to y. When x is 4 and y is 13, z has the value 1.230769
Talja [164]

Answer:

Step-by-step explanation:

1.2307692307692.

The first step is to find the proportionality constant.

The formula is

z = kx/y

1.2307692307692 = k * 4/13          Multiply both sides by 13

1.2307692307692 * 13 = 4k

16 = 4*k                                            Divide by 4

k = 16/4

k = 4

=================================

z = k*x/y

x = 9

y = 20

k = 4

z = 4 *9/20

z = 36/20

z = 1.8

7 0
3 years ago
Read 2 more answers
Simple math help?<br> Solve for x<br> √x+12 = √x+2
lozanna [386]
This is an impossible equation. If sqrt(x) = sqrt(x), and sqrt(x) + 2 = sqrt(x) + 12, then that would mean that 2=12, which is incorrect.
3 0
2 years ago
Autumn buys eggs and apples at the store.
soldier1979 [14.2K]

Answer:

\frac{(5.76-34.14)}{6}

Step-by-step explanation:

8 0
1 year ago
En el experimento Extraer una carta de una baraja española se consideran estos sucesos: A= 《Salir as 》 B= 《salir bastos 》 Calcul
Ganezh [65]

Answer:

They are compatible

Step-by-step explanation:

The first thing is to say that an "ace" and that it is a "coarse"

"ace" is card number 1. Group A

"coarse" is a type of the deck, found from number 1 to card 13. Group B

Thus:

 Calculate A U B:

1 to 13 + 1 of the other types of cards in the deck.

At intersection B:

1 of "coarse"

Therefore, if group A is compatible with group B

7 0
3 years ago
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