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pashok25 [27]
3 years ago
7

Please answer correctly !!!!!! Will mark brainliest answer !!!!!!!!!

Mathematics
1 answer:
Phoenix [80]3 years ago
5 0

Answer:

see below

Step-by-step explanation:

(x + 1.5)² - 2.25 - 28 = 0

(x + 1.5)² - 30.25 = 0

(x + 1.5)² = 30.25

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what is f" (pi/4) where f (x) = sin x + cos x ?? Show all your work. Write your final answer in simplest radical form.
Lynna [10]

Answer:

-√2

Step-by-step explanation:

f(x) = sinx + cosx

f'(x) = cosx - sinx

f''(x) = -sinx - cosx

f''(pi/4) = -sin(pi/4) - cos(pi/4) = -√2

3 0
2 years ago
Plz help me am dam at math I will gave Brainliest
irakobra [83]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

volume = 8 \times 7 \times  \frac{1}{2}  \\

volume = 8 \times  \frac{1}{2}  \times 7 \\

volume =  \frac{8}{2}  \times 7 \\

volume = 4 \times 7

volume = 28 \:  \:  \:  {m}^{3}

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7 0
3 years ago
Read 2 more answers
Ayala biked 12.76 miles on Sunday, 3.45 miles on Monday, and 6.52 miles on Tuesday. Over those three days, about how many miles
agasfer [191]

Answer:

23 miles

Step-by-step explanation:

12.76=13

3.45=3

6.52=7

13+3+7=23

3 0
2 years ago
Read 2 more answers
Is that correct ????
Travka [436]
Yes I believe it is :)
7 0
3 years ago
Solve for x:<br> (X+1)(x-3) = 0
Anton [14]

Answer:


Step-by-step explanation:

x= -1 or x=3

8 0
3 years ago
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