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Arada [10]
3 years ago
5

Am confuse I don’t get it

Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
6 0

Answer:

71 in^2

Step-by-step explanation:

I give you lazy anwer. There is a square 2(17)+2(10) =54 in^2 so this is not the answer, thus 71 be the answer.

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If f(x)=x squared-2x and g(x) = 6x+4 for which is a value of x does (f+g)(x) =0
ra1l [238]

Answer:

For x = -2

Step-by-step explanation:

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

ax^{2} + bx + c, a\neq0.

This polynomial has roots x_{1}, x_{2} such that ax^{2} + bx + c = a(x - x_{1})*(x - x_{2}), given by the following formulas:

x_{1} = \frac{-b + \sqrt{\Delta}}{2*a}

x_{2} = \frac{-b - \sqrt{\Delta}}{2*a}

\Delta = b^{2} - 4ac

In this question:

f(x) = x^2 - 2x

g(x) = 6x + 4

f(x) + g(x) = (f+g)(x)  = x^2 - 2x + 6x + 4 = x^2 + 4x + 4

Which is a value of x does (f+g)(x) =0

x^2 + 4x + 4

Quadratic equation with a = 1, b = 4, c = 4

So

\Delta = 4^{2} - 4*1*4 = 0

x_{1} = \frac{-4 + \sqrt{0}}{2} = -2

x_{2} = \frac{-4 - \sqrt{0}}{2} = -2

For x = -2

7 0
3 years ago
The diameter of the circle is 5 inches. What is the length of its radius?
Sergio [31]

Answer:

2.5 inches

Step-by-step explanation:

Radius is half of diameter

4 0
3 years ago
Simplify each expression. A5(6x) B.2x + 5y . + 7x C. 4(2x + 5y)
Diano4ka-milaya [45]
A.) 5(6x) = 30x   B.) 2x+5y+7x= 9x+5y   C.) 4(2x+5y)= 8x+20y
4 0
4 years ago
Let a_n be the n th digit after the decimal point in
WITCHER [35]
I believe this should just be equal to<span>
9π+5e−<span>(<span>⌊9π+5e⌋</span>)</span>=9π+5e−41</span>
The first element in your sum should be the first digit after the decimal point times .1, so you have
.8
The next element in the sum is the second digit after the decimal place times .01, so you get<span>
.8+.06=.86

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
</span>
5 0
3 years ago
Karina is making accessories for the soccer team. She uses 715.26 inches of fabric on he for 38 players and 4 coaches. She also
hjlf

___________________________________________________________

Answer:

Each player required 27.14 inches of fabric for their headband and wristband. 367.63in/39 players = 9.43in per wristband 761.53in/39 players+4 coaches = 17.71in per headband (17.71*39)+(9.34*39) = 1058.46 total fabric used for players only (1058.46)/39 = 27.14 inches of fabric used for each player individually

___________________________________________________________

3 0
3 years ago
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