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3 years ago

Which graph represents a quadratic function that has one real zero?

Mathematics

2 answers:

umka2103 [35]3 years ago

7 0

Answer:

Step-by-step explanation:

on edge

zhenek [66]3 years ago

6 0

Answer:

Step-by-step explanation:

The graph attached below represent the quadratic function with one real solution.

If the graph cuts the x -axis at only one point then it can be said there is only one -solution to the given equation.

If the graph does not touch the x-axis then their is no real solution.

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(GIVING BRAINLIEST!!!!!!!!)<br><br> U dont have to answer both<br><br> Explain your thinking

Paraphin [41]

Answer:

1. 0.6

2. 0.77

Step-by-step explanation:

Decimal for number 1 is 0.61 and 0.6 is less.

Decimal for 2 is 0.8 so 0.77 is less.

7 0

2 years ago

Read 2 more answers

BEST GETS BRAINLIEST Proof for Pythagoras Theorem (I’ll take multiple different approaches) Please make it logical/satisfying.

puteri [66]

Answer:

Proofs for Pythagoras Theorem usually use visual/geometry approaches. I don't post pictures in my answers, so I will present a linear algebra approach. You can see it in the blog posted by Professor Terence Tao.

Note that there are several elegant proofs using animations and drawings, but this is just personal.

I've seen this some time ago, it is really interesting proof.

It states that $a^2+b^2=c^2$ is equivalent to the statement that the matrices

$%\begin{pmatrix}a & b \\ -b & a%\end{pmatrix}%$ $\begin{pmatrix}a& b \\-b & a\\\end{pmatrix}$ and $\begin{pmatrix}c & 0\\0 & c \\\end{pmatrix}$ have the same determinant.

The determinant of the first matrix is $a^2+b^2$

The determinant of the second matrix is $c^2$

Once the linear transformations associated with these matrices differ by rotation, we claim that

$a^2+b^2=c^2$

8 0

2 years ago

After extensive measurements of the time necessary to complete the first homework assignment, a teacher determines that there is

MaRussiya [10]

Answer: -1.55

Step-by-step explanation:

Given : Mean : $\mu=100$

Standard deviation : $\sigma=20$

Sample size : $n=60$

Sample mean : $\overline{x}=96$

The test statistic for the population mean is given by :-

$z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

$\Rightarrow\ z=\dfrac{96-100}{\dfrac{20}{\sqrt{60}}}=-1.54919333848\approx-1.55$

Hence, the value of z statistic = -1.55

4 0

2 years ago

Please help with Q. b) ii)

ANEK [815]

So for a mother ages 28 , there is a chance of 1 in 1000 , but at the age of 38 there is a chance of 1 in 200 . to work out how many times more likely it is for the 38 year old to give birth to a child with down syndrome is to divide 1000 by 200 and this gives us 5 . so the 38 year old is 5 times more likely to give birth to a child with down syndrome than a 28 year old :)

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3 years ago

the sum of the internal angles of a regular polygon is equivalent to 56 right angles. Find the measure of the central angle of t

kykrilka [37]

If x is the number of sides of the regular polygon, then the sum of the interior angles is (x - 2) * 180 = 56 * 90. Solving for x gives 30 for the number of sides of the regular polygon.

To get the central angles measure, divide 360 by 30 to get 12 degrees for the measure of one of the 30 central angles.

Answer: 12 degrees

7 0

3 years ago