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3 years ago

3. A town is 28 square miles in area. The

Mathematics

1 answer:

Ostrovityanka [42]3 years ago

5 0

Answer:

The answer is C

Step-by-step explanation:

Because if u multiply 28 times 90 it will be 2,520 .

You how to round up the 5 to get 2,603.

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Draw the line of reflection that reflects AABC onto AA'B'C'. please help!!

GREYUIT [131]

Answer: <em>Line of reflection is y = 2 x + 2</em>

Step-by-step explanation: <em> I Hope this helps</em>

4 0

2 years ago

The average number of employees that call in sick for the day over the course of a year is 25.

sveta [45]

Answer:

Step-by-step explanation:

The mean of a set of numbers is the sum divided by the number of terms.

x¯= <u>25+10+16+39+27+25+32+25+25+22+28+14</u>

<h3>Simplify the numerator. </h3>

x¯ = <u>261.27</u>

<h3>Divide 261.27 by 11 </h3>

x¯= 23.75 18

<h3>Divide. </h3>

x¯= 23.75 18

The mean should be rounded to one more decimal place than the original data. If the original data were mixed, round to one decimal place more than the least precise.

x¯=23.8

<h3>Simplify each value in the list. </h3>

25,10,16,39.27,25,32,25,25,22,28,14

Set up the formula for sample standard deviation. The standard deviation of a set of values is a measure of the spread of its values.

s= n^∑ i=1 √(<u>xi−xavg</u>)²

N-1

Set up the formula for standard deviation for this set of numbers.

s= ⎷(25−23.8)²+(10−23.8)²+(16−23.8)²+(39.27−23.8)²+(25−23.8)²+<u>(32−23.8)²+(25−23.8)²+(25−23.8)²+(22−23.8)²+(28−23.8)²+(14−23.8)</u>²

11−1

<h3>Simplify the result. </h3>

s= √68.05209

The standard deviation should be rounded to one more decimal place than the original data. If the original data were mixed, round to one decimal place more than the least precise.

8.2

7 0

3 years ago

Read 2 more answers

The perimeter of triangle RXA is 24. If RX = 4 and RA = 11, find XP and PA. A. XP = 1.5, PA = 7.5 B. XP = 2.4, PA = 6.6 C. XP =

mart [117]

The picture in the attached figure

we know that
RX+RA+XA=24
XA=24-RA-RX------> XA=24-11-4----> XA=9
XA=XP+PA
so
XP+PA=9------> XP=9-PA-----> equation 1

RX/XP=RA/PA

11*XP=4*PA-----> equation 2
substitute equation 1 in equation 2
11*[9-PA]=4*PA-----> 99-11*PA=4*PA----> 15*PA=99----> PA=99/15
PA=6.6
XP=9-PA-----> XP=9-6.6----> XP=2.4

the answer is the option
<span>B. XP = 2.4, PA = 6.6 </span>

8 0

3 years ago

M<1=115<br> M<2<br> Could y’all give answers for all though

Makovka662 [10]

Answer:

1) m<2 = 115°

2) m<5 = 83°

3) m<8 = 45°

4) m<4 = 137°

Step-by-step explanation:

When two lines cross over each other, creating four angles, the opposite angles are equal.

So in question one, <1 is equal to <2, the angle opposite it, and so it is 115°.

Similarly, in question two, <5 = <6 = 84°.

In question three, <8 = <9 = 45°.

and in question four, <3 = <4 =137°.

3 0

3 years ago

Read 2 more answers

1.If a line with a slope of -3 crosses the y-axis at (0,7), what is the equation of the line?

gogolik [260]

y = mx + b "m" is the slope, "b" is the y-intercept (the y value when x = 0)

1. slope: -3

y-intercept: 7

y = -3x + 7

Your answer is B

y + 3x = 7 Subtract 3x on both sides

y = -3x + 7

2. y + 9(x + 3) = 0 Multiply/distribute 9 into (x + 3)

y + 9x + 27 = 0 Subtract 9x and 27 on both sides to get "y" by itself

y = -9x - 27

slope: -9

y-intercept: -27 or (0,-27)

Your answer is D

3. Point-slope form: y - y₁ = m(x - x₁)

slope: -11

(x₁ , y₁) = (-5, 7)

y - 7 = -11(x - (-5)) The two negative signs becomes a positive

y - 7 = -11(x + 5)

Your answer is C

4. For this question, I think you get it from point-slope form to slope-intercept form (I'm not sure, but you still get the same answer if you just do slope-intercept form)

slope: -4

(x₁ , y₁) = (2, -8)

y - y₁ = m(x - x₁)

y - (-8) = -4(x - 2)

y + 8 = -4(x - 2) Multiply/distribute -4 into (x - 2)

y + 8 = -4x + 8 Subtract 8 on both sides to get "y" by itself

y = -4x

Your answer is A

3 0

3 years ago