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vaieri [72.5K]
3 years ago
10

Which values of x make the equation |x - 7| = x - 7 true? 9 0 3 8 -7

Mathematics
1 answer:
Vlad [161]3 years ago
3 0
-7
I might not be right but that’s what I got.
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Please help meeeeeeeeeeeew
Paladinen [302]

Answer:

  • 40 sq. units

Step-by-step explanation:

<h3>Solution 1</h3>

The figure (kite) is symmetric and covers half of the area of rectangle with sides 8 units aby 10 units

<u>The area of the rectangle:</u>

  • A = 8*10 = 80 sq. units

<u>The area of the kite:</u>

  • A = 1/2*80 = 40 sq. units
<h3>Solution 2</h3>

Split the kite into two triangles and calculate their area and add up

<u>Triangle DCB has b = 8, h = 2 and has area:</u>

  • A = 1/2*8*2 = 8 sq. units

<u>Triangle DAB has b = 8, h = 8 and has area:</u>

  • A = 1/2*8*8 = 32 sq. units

<u>Total area:</u>

  • 8 + 32 = 40 sq. units
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2 years ago
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Write a quadratic function in standard form with zeros 9 and -4
OverLord2011 [107]
if\ x_1\ and\ x_2\ zeros,\ then\ quadratic\ function\:\\\\f(x)=a(x-x_1)(x-x_2)\\\\\\9;\ -4-zeros,\ then:\\\\f(x)=a(x-9)(x+4)=a(x^2+4x-9x-36)=a(x^2-5x-36)\\\\\\if\ a=1\ then\ f(x)=x^2-5x-36
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3 years ago
If 22x = 23, what is the value of x?
Cerrena [4.2K]
22x=23
x=23/22
.               
23/22=1.04545454545454545...
5 0
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galina1969 [7]

Answer:

3

Step-by-step explanation:

To evaluate the expression, we have to substitute the variable in the expression, z, for its stated value. Given that z = 6, substitute 6 for the z in the expression and solve:

\frac{z}{2} \\= \frac{6}{2} \\= 3

Thus, the answer is 3.

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3 years ago
In the summer Brian saw 20 movies at the theater. in the fall he saw one fourth as many movies. Write an equation that shows how
laiz [17]
Heyyyyy, lets gather the required information....
Summer = 20 movies  Fall = 5 , our equation would be:

F = S/4*1
5 0
3 years ago
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