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svp [43]
3 years ago
11

The vertex of this parabola is at (-3,-1). When the y value is 0, the x value is 4. What is the coefficient of the squatted term

Mathematics
1 answer:
kupik [55]3 years ago
5 0
I'm assuming by the way those points lie in the coordinate plane that this is a parabola that opens to the right, a y^2 parabola.  Our x and y coordinates are (4,0), and the h and k of the vertex are (-3, -1).  The standard form for this parabola is x=a(y-k)^2+h.  We need to find a.  Filling in accordingly, 4=a(0+1)^2-3.  Simplifying a bit we get 4 = a - 3.  a = 7.  The parabola, then, has the equation x=7(y+1)^2-3
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An arc on a circle measures 250 degrees. Within range which range is the radian measure of the central angle?
blondinia [14]

If the arc measures 250 degrees then the range of the central angle lies from π to 1.39π.

Given that the arc of a circle measures 250 degrees.

We are required to find the range of the central angle.

Range of a variable exhibits the lower value and highest value in which the value of particular variable exists. It can be find of a function.

We have 250 degrees which belongs to the third quadrant.

If 2π=360

x=250

x=250*2π/360

=1.39 π radians

Then the radian measure of the central angle is 1.39π radians.

Hence if the arc measures 250 degrees then the range of the central angle lies from π to 1.39π.

Learn more about range at brainly.com/question/26098895

#SPJ1

8 0
1 year ago
A measurement template with a historcal value of 25.500 is measured 27 times and a mean value of 25.301 is recorded. What is the
QveST [7]

Complete Question

A measurement template with a historical value of 25.500 mm is measured 27 times and a mean value of 25.301 mm is recorded. What is the percent bias when the tolerance is +/- 0.3?

Answer:

The percent bias is  B = 33.167 \%  

Step-by-step explanation:

From the question we are told that

   The historical value  is  S = 25.00 \ mm

   The number of times it is measured is  n  =  7  

    The mean value is  \= x = \frac{\sum x_i }{n} = 25.301 \ mm

    The tolerance is  t =\pm 0.3 = 0.3 - (-0.3) = 0.6

Generally the percent bias is mathematically represented as

      B = 100 * \frac{\= x - \tau }{ t}

=>  B = 100 * \frac{25.301 - 25.5000 }{0.6}

=>  B = 33.167 \%  

3 0
3 years ago
Find the domain of f(x) = Square 3 x + 8 ​
vagabundo [1.1K]

The question is a bit ambiguous: you may mean

\sqrt{3x+8}

or

\sqrt{3x}+8

Anyway, in both cases, the domain of a function involving a square root is found by imposing the content of the root to be greateer than or equal to zero. So, in the first case you have

3x+8\geq 0 \iff 3x\geq -8 \iff x\geq -\dfrac{8}{3}

In the second case, you have

3x\geq 0 \iff x\geq 0

6 0
3 years ago
What is the approximate percent change in a temperature that went down from 120 degrees to 100 degrees?
Mumz [18]
(120-100)/120
=20/120
=16.66666666
=17%
4 0
3 years ago
Read 2 more answers
2. How many centimeters are there in a meter?<br> 10<br> 1,000<br> 100<br> 0.1
PilotLPTM [1.2K]

Answer:

100

Step-by-step explanation:

Brainliest please

5 0
3 years ago
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