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aniked [119]
2 years ago
9

Find the measure of A as indicates in the picture.

Mathematics
1 answer:
-Dominant- [34]2 years ago
8 0

Answer:

∠A = 58°

Step-by-step explanation:

all triangles contain 180°

180° - 149° = 31°

x + 63° + x + 96° + 31° = 180°

combine like terms:

2x + 190° = 180°

2x = -10°

x = -5°

∠A = -5° + 63° = 58°

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a girl that is 4 feet tall standing 2 feet from a mirror sees the reflection of a flag pole that is 12 feet from the mirror how
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Answer:

the pole is 24 feet tall

Step-by-step explanation:

the mirror make every thing half its size

6 0
3 years ago
A trapezoid has an area of 30 in2. If the lengths of the bases are 4.8 in. and 5.2 in., what is the height?
Aleonysh [2.5K]
5.2+4.8= 10
So it has to be 20 I think
3 0
3 years ago
I need help please. I don't understand
Viktor [21]

Answer:

  a.  y = 0.56x -17.78 . . . . y = Celsius temperature; x = Fahrenheit temperature

  b.  37.436 °C

  c.  interpolation

  d.  83.2 °F

Step-by-step explanation:

a. In most cases, finding the linear regression equation that fits a table of data involves somewhat tedious calculations best performed by a calculator or computer. The general approach is to enter the data into the necessary list(s) or table, and invoke the necessary function.

In Microsoft Excel (and many other spreadsheet programs), you can chart the data in the usual way, then choose the option to add the regression equation to the chart.

In the Desmos calculator used here, the data can be entered into a table, and a generic equation written relating the table entries. Any unknown constants in the equation are computed by Desmos so as to maximize the correlation between the equation and the data. Using a linear equation results in a linear regression computation.

This calculator tells us what we should already know (from previous knowledge of Fahrenheit–Celsius conversion).

  y ≈ 0.56x -17.78

(We already know the actual conversion is y = (5/9)(x -32) = (5/9)x -(17 7/9). The above is what you get when the numbers are rounded to hundredths, as required by this problem.)

___

b. Using the above equation for x=98.6, we get

  y = 0.56·98.6 -17.78 = 55.216 -17.78 = 37.436 . . . °C

___

c. Since we're finding a value <em>between</em> values already in the table, the process is called interpolation. (Extrapolation is used to find values beyond those that are already in the table. The prefixes <em>inter</em>- (between) and <em>extra</em>- (beyond) can help you remember what these terms mean.)

___

d. In this part, we're asked to find x that corresponds to y=28.8. We fill in the value and solve.

  28.8 = 0.56x -17.78

  46.58 = 0.56x . . . . . . add 17.78

  46.58/0.56 = x ≈ 83.179 ≈ 83.2 . . . . . divide by the coefficient of x; round appropriately. Units are °F.

6 0
3 years ago
Tuition of $2700 is due when the spring term begins in 9 months. What amount should a student deposit today, at 11% to have enou
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The student should deposit atleast 3,500 to get the job done. But she can deposit a lower amount.
6 0
3 years ago
Read 2 more answers
Round 375 to the nearest hundred
Aliun [14]
The nearest hundred would be 400
8 0
3 years ago
Read 2 more answers
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