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Gnom [1K]
3 years ago
7

How do you find the x?

Mathematics
1 answer:
AnnyKZ [126]3 years ago
3 0
There are 180 degrees total in a triangle and the tell you one angle is 90. So you solve the equation 4x+6x=90. So x=9
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One x-intercept for a parabola is at the point (1,0). Use the factor method to find the other x-intercept for the parabola defin
Hoochie [10]
First simplify the equation of parabola y=-5x^2+15x-10 in the following way:
D=(15)^2-4\cdot (-5) \cdot (-10)=225-200=25, \\  \sqrt{D}=5, \\  x_{1,2} = \dfrac{-15\pm 5}{2\cdot(-5)} = 2, 1  \\ -5x^2+15x-10=-5(x-1)(x-2), \\ y=-5(x-1)(x-2).
You can see that if x=1 or x=2, then y=0. Two points of intersection with x-axis are (1,0) and (2,0).

3 0
3 years ago
How do i find x in this problem
Maslowich
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3 years ago
A car travels a distance of 110 miles in a time or 2.8 hours what Is its average speed rounded to 1dp
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3 years ago
People of different ages were asked the question "Do you listen to audiobooks?" The frequency table displays the percentage of "
satela [25.4K]

No, because the data display the percentage of time spent by each age group, not a relative frequency compared with the whole.

The correct option is C.

<h3>What is pie chart?</h3>

The “ pie chart” is also known as a “circle chart”, dividing the circular statistical graphic into sectors or sections to illustrate the numericical value.

Given

People of different ages were asked the question "Do you listen to audiobooks?

" The frequency table displays the percentage of "yes" responses for different age groups. 13 to 17, 8 percent; 18 to 25, 15 percent; 26 to 35, 23 percent; 36 to 45, 45 percent; 46 and over, 48 percent.

Considering that the data displays the percentage of time spent by each age group, not a relative frequency compared to the whole, a pie chart would not be appropriate.

  • Pie charts are used to indicate relative frequency of each group, when the whole combines to 100%.
  • In this problem, the sum of the percentages is not 100%, hence, it does not indicate relative frequency, and the third option is correct.

Hence, No, because the data display the percentage of time spent by each age group, not a relative frequency compared with the whole.

You can learn more about pie charts at;

brainly.com/question/25796636

4 0
2 years ago
PLS HELP 50 POINTS!!
Leno4ka [110]

Step-by-step explanation:

everything can be found in the picture above. Hope this helps

7 0
3 years ago
Read 2 more answers
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