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steposvetlana [31]
3 years ago
15

Can anyone help me please at least to answer one of this please

Mathematics
1 answer:
natima [27]3 years ago
7 0

Answer:

7 answer is 4+2√129 I think

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Please answer correctly !!!!!!!!!! Will mark brainliest !!!!!!!!!!!!
Leto [7]

Answer:

see explanation

Step-by-step explanation:

(1)

Given

g(r) = (r + 14)² - 49

To obtain the zeros, let g(r) = 0 , that is

(r + 14)² - 49 = 0 ( add 49 to both sides )

(r + 14)² = 49 ( take the square root of both sides )

r + 14 = ± \sqrt{49} = ± 7 ( subtract 14 from both sides )

r = - 14 ± 7, then

r = - 14 - 7 = - 21 ← smaller r

r = - 14 + 7 = - 7 ← larger r

(2)

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

g(r) = (r + 14)² - 49 ← is in vertex form

with vertex = (- 14, - 49 )

4 0
2 years ago
The sum of a number and twice its square is 105. Find the number
IRISSAK [1]
N+2^2=105
105-4=101
n=101
hope it helps please mark me as brainliest
 
3 0
2 years ago
A university is trying to determine if certain remedial classes need to be offered to their incoming class. To do so, they give
lora16 [44]

Answer:

The experiment is identifying whether a student gets less than a 75% on the entrance exam.

The trial is one exam being taken.

An outcome is a student scoring 80%.

Step-by-step explanation:

An experiment occurs when an intervention is made by a researcher and its effect are studied, thus the experiment here is identifying whether a student gets less than a 75% on the entrance exam.

The trial is the one exam being taken.

While an outcome is the aftermath of the experiment which includes a student scoring 80%.

8 0
3 years ago
Find the domain of (90,660)
Doss [256]

Answer: the domain is - infinity , + infinity


Step-by-step explanation:


3 0
3 years ago
Read 2 more answers
In the problem 83 - 10 x 5 - 4, which step should you perform first?
Ksivusya [100]
Multiplication comes before any subtraction...so do 10 x 5 first
3 0
3 years ago
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