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Sergeu [11.5K]
3 years ago
15

What is the quadratics formula?

Mathematics
2 answers:
8_murik_8 [283]3 years ago
8 0
This is the quadratic formula

masha68 [24]3 years ago
7 0
Here it is, i hope this helps!

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If a truck goes 30 kilometers in 30 minutes, what is its average speed?
Alenkinab [10]

If you want to find kmph, you could make a ratio, 30:30, and multiply each to get 60km in 60 min.so the answer is 60km in 1hr





3 0
4 years ago
A pet owner has 5 cats. Each cat has 2 ears and 4 paws. Complete the double number line to show the numbers of ears and paws for
aleksandrvk [35]

Answer:

If there are 3 cats in the room, what is the ratio of ears to paws?  1 : 2

If there are 4 cats in the room, what is the ratio of paws to ears?  2 : 1

If all 5 cats are in the room, how many more paws are there than ears? the number of paws is twice as more than the number of ears, we have 10 more paws than ears.

Step-by-step explanation:

You can see the double number line for this situation in the attached photo.

So as we can see in the double number line diagram, if there are 3 cats in the room we would have an ears to paws ratio of 6 : 12 , which simplified would be 1 : 2, meaning that for every ear there are 2 paws.

For the next question, if there are 4 cats in the room, the paws to ears ratio would be 16 : 8, simplified to 2 : 1, meaning that for every 2 paws there is 1 ear.

And for the last question, if all 5 cats are in the room, we have that the paws to ears ratio is 20 : 10, simplified again to 2 : 1, meaning the number of paws is twice as more than the number of ears, so in this case we have 10 more paws than ears.

7 0
3 years ago
In the diagram, the measure of angle 3 is 89°, and the measure of angle 6 is 88°.
musickatia [10]

Answer:

sorry I'm editing this to apologize, because I put the wrong answer on here. I said it was D, but this is NOT correct. I do not know the answer so I am sorry, but I cant delete my answer know that I've already posted it.... forgive me

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Solve the following problem: 892 ÷ 4 = ? *<br> \
Alex_Xolod [135]

Answer:

223

Step-by-step explanation:

hope it helps!!!!......

4 0
3 years ago
Read 2 more answers
Which line is perpendicular to the given equation: y=2x+17
pentagon [3]

Answer:

\large\boxed{y=-\dfrac{1}{2}x+b,\ \text{wher}\ b\in\mathbb{R}.}

Step-by-step explanation:

\text{Let}\ k:y=m_1x+b_1,\ l:y=m_2x+b_2\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\\\l\ \parallel\ k\iff m_1=m_2\\==========================\\\\\text{The slope-intercept form of an equation of a line:}\\\\y=mx+b\\\\m-slope\\b-y-intercept\\==========================\\\\\text{We have the equation of the line:}\ y=2x+17\to m_1=2.\\\\\text{Therefore}\ m_2=-\dfrac{1}{2}.\\\\\text{The equation of a line:}\ y=-\dfrac{1}{2}x+b,\ \text{wher}\ b\in\mathbb{R}.

8 0
3 years ago
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