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3 years ago

Find the y-intercept for the parabola defined by

Mathematics

1 answer:

wolverine [178]3 years ago

4 0

Answer:

Step-by-step explanation:

Set x=0

when you do that, you will find the point where y=12 since x^2+8x=0, but adding the 12 moves up the y-component by 12 units

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Did I do the problem -2x+10=-2(x+5) ? If not plz explain and answerthxx

Citrus2011 [14]

So when you opened up the parenthesis on the right side of the question, you added -2 to 5 instead of multiplying. Since there is no addition sign in between -2 and the parenthesis, it should be multiplication, so -2x + -10.

So now the answer would be 10 = -10.

Which leads me to believe that this question wasn't written correctly because 10 does not equal -10 for sure.

6 0

3 years ago

AC=3x+3, AB=-1+2x, and BC=11 find x

Nikolay [14]

Answer:

the Value of x is 7.

Step-by-step explanation:

5 0

3 years ago

Blood pressure values are often reported to the nearest 5 mmHg (100, 105, 110, etc.). The actual blood pressure values for nine

Paladinen [302]

Answer:

a) 117.4

b) 117.9

c) Option A) When there is rounding or grouping, the median can be highly sensitive to small change

Step-by-step explanation:

We are given the following data set in the question:

108.6, 117.4, 128.4, 120.0, 103.7, 112.0, 98.3, 121.5, 123.2

$Median:\\\text{If n is odd, then}\\\\Median = \displaystyle\frac{n+1}{2}th ~term \\\\\text{If n is even, then}\\\\Median = \displaystyle\frac{\frac{n}{2}th~term + (\frac{n}{2}+1)th~term}{2}$

n = 9

a) Median of the reported blood pressure values

Sorted Values: 98.3, 103.7, 108.6, 112.0, 117.4, 120.0, 121.5, 123.2, 128.4

Median =

$\dfrac{9 + 1}{2}^{th}\text{ term} = 5^{th}\text{ term} = 117.4$

b) New median of the reported values

Data: 108.6, 117.9, 128.4, 120.0, 103.7, 112.0, 98.3, 121.5, 123.2

Sorted Values: 98.3, 103.7, 108.6, 112.0, 117.9, 120.0, 121.5, 123.2, 128.4

New Median =

$\dfrac{9 + 1}{2}^{th}\text{ term} = 5^{th}\text{ term} = 117.9$

c) Since median is a position based descriptive statistics, a small change in values can bring a change in the median value as the order of the data may change.

Option A) When there is rounding or grouping, the median can be highly sensitive to small change

7 0

3 years ago

Converting Mixed Numbers to Improper Fractions.

andrew11 [14]

Just multiply the denominator and the whole number then add the numerator

23/9
7/2
37/5
16/5
23/4
33/5

The answers are in order you put it in like 1-6

Can I have brainiest please

6 0

3 years ago

35 is what percentage of 60

Aliun [14]

To find this out, divide 35 by 60:

35/60 = .583333333333

So 35 is 58.3% of 60.

Hope this helps!

7 0

3 years ago