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3 years ago

What is this question 5(x-2)=2(x+1)

Mathematics

2 answers:

Katen [24]3 years ago

5 0

X=4
see photo; hope this helps

AnnyKZ [126]3 years ago

3 0

Answer:

this is too smart for mehrhdhd

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Combine the like terms to create an equivalent expression. \large{7k-k+19}7k−k+19

klio [65]

A is correct trust promise

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3 years ago

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Which equation has the components of 0 = x2 – 9x – 20 inserted into the quadratic formula correctly?

Aneli [31]

Answer:

The required equation is $x=\frac{-(-9)\pm \sqrt{(-9)^2-4(1)(-20)}}{2(1)}$ .

Step-by-step explanation:

If a quadratic equation is $ax^2+bx+c=0$ , then the quadratic formula is

$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

The given quadratic equation is

$x^2-9x-20=0$

Here, a=1, b=-9 and c=-20.

Substitute a=1, b=-9 and c=-20 in the above quadratic formula.

$x=\frac{-(-9)\pm \sqrt{(-9)^2-4(1)(-20)}}{2(1)}$

Therefore the required equation is $x=\frac{-(-9)\pm \sqrt{(-9)^2-4(1)(-20)}}{2(1)}$ .

6 0

3 years ago

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The expression, involving exponents , to represent the shaded area, in square inches, diagram. Then use that expression to calcu

mart [117]

Answer:

The shaded area is $23\ in^{2}$

Step-by-step explanation:

we know that

The shaded area is equal to the area of the large square minus the area of the two smaller squares

$A=6^{2} -(3^{2} +2^{2})\\ \\ A=(2*3)^{2} -(3^{2} +2^{2})\\ \\A=(2^{2})(3^{2}) -(3^{2} +2^{2})$

Calculate the shaded area

Remember that

$3^{2}=9\\ 2^{2}=4$

substitute

$A=(4)(9) -(9 +4)\\ \\A=36-13\\ \\A=23\ in^{2}$

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3 years ago

HELP BRAINLYNST ANSWER 40 points plz help help with the whole page and just to make sure do the answers answer cause I wanna kno

madam [21]

Answer:

11) .75 12) .65 13) .6 14) .4 15) a. .6 b. 4 16) .09 17) 9/100 18) .60 19) .20 10) .50

Step-by-step explanation:

Your'e welcome (;

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3 years ago

Write the geometric sequence in function notation.

Anni [7]

Answer:

a(n) = 7*2^(n - 1)

Step-by-step explanation:

The first term of the given geometric sequence, 7, 14, 28, 56, 112, ... , is 7, and the common ratio is 2. Each new term is twice the previous term.

Thus the general formula for the geometric sequence becomes

a(n) = 7*2^(n - 1).

As a check, let's see whether this formula correctly predicts the fourth term (56): Here n = 4, and so a(4) = 7*2^(4 - 1) = 7*2^3 = 7*8 = 56. Yes.

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4 years ago

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