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Shalnov [3]
3 years ago
10

Help me solve the following?

Mathematics
1 answer:
Semmy [17]3 years ago
4 0

Answer:

A. n=70

Step-by-step explanation:

Let the number be n

According to the question

15+n=85

Subtract 15 from both sides

n=70

Hope it helps:-)

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7 0
3 years ago
What is this problem
Veronika [31]

The coordinate of the vertex is; (h, k) = (3, -5)

The final equation of the parabola is; y = 5(x - 3)² - 5

<h3>How to find the vertex of a Parabola?</h3>

The vertex is the coordinate of the crest or trough of the curve. Now, in the given graph, we only have a Trough which is the lowest point of the graph.

The coordinate of the vertex is; (h, k) = (3, -5)

2) Since the general equation is;

y = a(x - h)² + k

We will have;

y = a(x - 3)² - 5

At x = 2, y = 0. Thus;

0 = a(2 - 3)² - 5

a - 5 = 0

a = 5

3) The final equation of the parabola is;

y = 5(x - 3)² - 5

Read more about Parabola Vertex at; brainly.com/question/17987697

#SPJ1

3 0
2 years ago
5/6+2i<br><br><br>Aka<br><br><br> 5<br><br>___<br><br>6+2y<br>Ignore my answer its probably wrong
liberstina [14]

Answer:

   (3/4) -(1/4)i

Step-by-step explanation:

Your answer is correct.

\dfrac{5}{6+2i}=\dfrac{5(3-i)}{2(3+i)(3-i)}=\dfrac{5(3-i)}{2(9+1)}\\\\=\dfrac{3-i}{4}=\dfrac{3}{4}-\dfrac{1}{4}i

8 0
3 years ago
2. If 8.67 is rounded to tenth, 8.67 becomes<br>A. 8.00<br>B. 8.7<br>C. 8.60<br>D. 86.0<br>2.64​
andrey2020 [161]

Answer:

b. 8.7

Step-by-step explanation:

7 rounds up turning the 6 besides it into a 7.

4 0
3 years ago
Read 2 more answers
Which equation demonstrates the additive identity property?
boyakko [2]

the answer for the question is b! :)

3 0
3 years ago
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