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Elena-2011 [213]
3 years ago
7

Please help me do my homework I have been stuck on this for ages!!

Mathematics
1 answer:
jek_recluse [69]3 years ago
8 0
10%. The thing is telling me to use twenty characters ignore this lol
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5√28+ √63<br> please simplify no exponents please
zaharov [31]

Answer:

34.3948

Step-by-step explanation:

5\sqrt{28} +\sqrt{63} = 13\sqrt{7} = 34.3948

3 0
3 years ago
Read 2 more answers
The parabola opens upward has x = 2 as an axis of symmetry and contains the non -vertex points (1, 9) and (4, 27) write the equa
Sedaia [141]

Answer:

<h3>               f(x) = 6(x - 2)² + 3</h3>

Step-by-step explanation:

f(x) = a(x - h)² + k    - vertex form of the equation of the parabola with vertex (h, k)

"the parabola opens upward" means:  a>0

"the parabola has x = 2 as an axis of symmetry" means:  h = 2

so f(x) = a(x - 2)² + k

"the parabola contains the point (1, 9)" means:

9 = a(1 - 2)² + k

9 = a(-1)² + k

9 = a + k

k = 9 - a

"the parabola contains the point (4, 27)" means:

27 = a(4 - 2)² + k

so:

27 = a(2)² + 9 - a

27 = 4a + 9 - a

3a = 18

a = 6

and  k = 9 - 6 = 3

Therefore the vertex form for this parabola is:

                                     <u> f(x) = 6(x - 2)² + 3</u>

4 0
3 years ago
The value of a painting bought for $3,800 increases 2.6% each year. Use a graph to predict the value of the painting in 5 years.
Vinvika [58]

The value of the painting in 5 years is $4,320.36

<h3>Expoential functions</h3>

The standard exponential function is expressed as:

  • A = P(1+r)^t

Given the following

  • P = $3800
  • r = 2.6% = 0.026
  • t = 5 years

Substitute into the formula

A = 3800(1+0.026)^5
A = 3800(1.026)^5
A = 4,320.36

Hence the value of the painting in 5 years is $4,320.36

Learn more on exponential function here: brainly.com/question/12940982

5 0
2 years ago
What is 4(x-1)^2+2=10
Sergeeva-Olga [200]

Answer:

Answer below

Step-by-step explanation:

4(x−1)

​2

​​ =10−2

4(x−1)

​2

​​ =8

(x−1)

​2

​​ =

​4

​

​8

​​

(x−1)

​2

​​ =2

x −1=±√

​2

x−1=√

​2

​

​​

x-1=-\sqrt{2}x−1=−√

​2

​

​​

x=√

​2

​

​​ +1

x=−√

​2

​

​​ +1

x=√

​2

​

​​ +1,−√

​2

​

​​ +1

3 0
3 years ago
Sonia is standing between two buildings. The building to her left is 112 feet tall and the building to her right is 78 feet tall
djverab [1.8K]

I give up on this one because it is so hard

4 0
3 years ago
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