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Tatiana [17]
2 years ago
15

Please help me with this question

Mathematics
1 answer:
ycow [4]2 years ago
7 0

Answer:

0

Step-by-step explanation:

I can't understand your hand writing

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Form quadratic functions given the following information:<br> Zeroes at 4 and –2, f(0)=4
laila [671]

Answer:

f(x)=-0.5x^2+x+4

Step-by-step explanation:

we know that

A quadratic function in factored form is equal to

f(x)=a(x-x_1)(x-x_2)

where

a is the leading coefficient

x_1 and x_2 are the zeroes of the function

substitute the given values

f(x)=a(x-4)(x+2)

Find the value of a

Remember that

For x=0 ----> f(0)=4

substitute

4=a(0-4)(0+2)

4=a(-8)\\a=-0.5

so

f(x)=-0.5(x-4)(x+2)

f(x)=-0.5(x^2+2x-4x-8)

f(x)=-0.5(x^2-2x-8)

f(x)=-0.5x^2+x+4

5 0
3 years ago
Interior and Exterior Triangle Angles (0/5)
sweet-ann [11.9K]

Answer:

<h3>      ∠R = 69</h3>

Step-by-step explanation:

<h2>Angle sum property</h2>

Sum of all angles of triangle = 180

     5x - 11 + 3x - 3 + 3x + 18 = 180

      5x + 3x + 3x  -11 - 3 + 18 = 180

Combine like terms

                             11x  + 4 = 180

                                   11x = 180 - 4

                                   11x = 176

                                      x = 176/11

                                       x = 16

∠R = 5x - 11

   = 5*16 - 11

   = 80 - 11

    = 69

8 0
2 years ago
Koji is installing a rectangular window in a office building, the window is
VladimirAG [237]
4983/<span>100 


49 and 83/100 feet^2


hope I helped!

Let me know if you need anything else!

~ Zoe</span>
4 0
3 years ago
The owner of a small store buys coats for ​$55.00 each. Answer parts a and b. a. She sells the coats for ​$99.00 each. What perc
scoundrel [369]

Answer:

180% ; 5

Step-by-step explanation:

Purchase price per coat = 55

Sales price per coat = 99

% of purchase price is sales price :

X% * 55 = 99

(x / 100) * 55 = 99

0.01x * 55 = 99

0.55x = 99

x = 99 / 0.55

x = 180

180% of purchase price

B.)

180% * 45 = 81 per jacket

Number of jackets to sell to make atleast $390 in sales

$390 / $81 = 4.8

Hence, 5 jackets

3 0
3 years ago
PLEASE HELP FAST simplify: sqrt 8 + 2 sqrt 15
Ket [755]

Answer:

2\sqrt{2} + 2\sqrt{15}

Step-by-step explanation:

\sqrt{8} = \sqrt{4}\sqrt{2} = 2\sqrt{2}

7 0
3 years ago
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