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Vsevolod [243]
3 years ago
14

How do you find the vertex and the axis of symmetry of the equation? y = 2x^2 + 28x - 10

Mathematics
2 answers:
Maurinko [17]3 years ago
8 0

Answer:

-7±3√6

Step-by-step explanation:

Digiron [165]3 years ago
5 0

Answer:

By completing the square and rewrite equation in the form of

y = a{(x   -  p)}^{2}  + q

Where the vertex is (p, q)

axis of symmetry is x=p

Step-by-step explanation:

The solution is in the picture

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Help me please!!❤️❤️
barxatty [35]

Answer:

4(x^2)(y^0)

Step-by-step explanation:

or 4(x^2) either one should be correct

8 0
3 years ago
This is 3 weeks late please help me
777dan777 [17]

Answer:

3

<em>Hope that helps! :)</em>

<em></em>

-Aphrodite

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Please help, I will mark!!
Alik [6]

Answer:

d=28.28

Step-by-step explanation:

To calculate the lenght of the diagonal d across the square, we can assume that the square it is compound of two right triangles. So, we can resolve this exercise using The Pythagorean Theorem.

<em>The Pythagorean theorem</em> states that in every right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the respective lengths of the legs. It is the best-known proposition among those that have their own name in mathematics.

If in a right triangle there are legs of length a and b, and the measure of the hypotenuse is c, then the following relation is fulfilled:

a^{2} +b^{2} =c^{2} a is the height, b is the base, and c is  

the hypotenuse.

To obtain the value of the hypotenuse

c= \sqrt{a^{2} +b^{2} }

To find the value of the lenght of the diagonal d across the square, we have:

d=\sqrt{a^{2} +b^{2} } Where a = b = 20

Substituting the values

d=\sqrt{(20)^{2} +(20)^{2} }\\d=\sqrt{400+400} =\sqrt{800} \\d=28.284

Round the answer to 2 decimal places

d=28.28

6 0
3 years ago
I know this is easy but im stuck on two answers and im getting confused.. The first one that answer this correctly gets a BRANLI
evablogger [386]
I don’t know the gap at the beginning but the answer is c
5 0
3 years ago
Candice spent 5 1/4 hours doing her homework. Her brother, Ronald, spent 1/2 that number of hours doing his homework. How many h
Elden [556K]

Let

x-----> the number of hours that Candice spent doing her homework

y-----> the number of hours that Ronald spent doing his homework

we know that

x=5\frac{1}{4}\ hours

convert mixed number to an improper fraction

5\frac{1}{4}\ hours=\frac{5*4+1}{4}= \frac{21}{4}\ hours

so

x=\frac{21}{4}\ hours -------> equation A

y=\frac{1}{2}x ------> equation B

Substitute equation A in equation B

y=\frac{1}{2}*\frac{21}{4}=\frac{21}{8}\ hours

convert an improper fraction to a mixed number

\frac{21}{8}\ hours=2.625=2+0.625=2+\frac{5}{8}=2\frac{5}{8}\ hours

therefore

<u>the answer is the option B</u>

2\frac{5}{8}\ hours

5 0
3 years ago
Read 2 more answers
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