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Law Incorporation [45]
3 years ago
14

Help please!!!!!!!!!!!!!!!!

Mathematics
2 answers:
meriva3 years ago
7 0

Answer:

3

Step-by-step explanation:

they always make some kind of angle usually 90 degress.

charle [14.2K]3 years ago
5 0
3 they always make like a 90 degree
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Mary French uses gas to heat her home. She has accumulated the following information regarding her monthly gas bill and monthly
garik1379 [7]

Answer:

Y=$24+0.09X

Step-by-step explanation:

From the question we are told that

February Heat H_1=1900\textdegree

February Gas G_1 =\$195

April Heat H_2=600\textdegree

April Gas G_2=\$78

Generally equation for heating degree-days X is mathematically given by

 X=\frac{\triangle gas\ bills}{\triangle Heating\ days}

 X=\frac{195-78}{1900-600}

 X=\$ 0.09

Generally the equation for gas bill Y is mathematically represented by

 Y=78-(600*0.09)\\Y=\$24

The equation representing the relationship between the gas bill (Y) and heating degree-days (X) is

 Y=$24+0.09X

7 0
3 years ago
Qual é a diferença entre a população de Toledo e Umuarama?
Inessa05 [86]
E preciso subtrair.

      119207
  -   100716
----------------
        18491
3 0
3 years ago
What is the sector with a central angle of 185 degrees and a diameter of 6.4 m? Round to the nearest tenth.
mr_godi [17]
The area of a sector is 
     A=\frac{1}{2}r^2\theta =\frac{1}{2}\left(3.2\:m\right)^2\left(185\cdot \frac{\pi }{180}\right)=16.5\:m^2

The answer is 16.5 square meters. 
6 0
3 years ago
Read 2 more answers
In the figure, if m∠ABD = 120º, then m∠ADC = ___
Darya [45]
Okay first, use the sin rule (\frac{SinA}{a} =  \frac{SinB}{b}
so \frac{Sin120}{35} * 30 = SinB
sin^-1 this and you get 47.928....this is angle ADB
and as it is on a straight line, 180 - this angle gets ADC
180 - 47.928.... = 132.07
4 0
3 years ago
Read 2 more answers
Two trains leave the same station at the same time, but are headed in opposite directions. One train travels at 70 mph and the o
uranmaximum [27]

Let

x--------> the time in hours

y-------> the distance in miles

we know that

The speed is equal to

Speed=\frac{distance}{time}

in this problem

Speed=\frac{y}{x}

y=(Speed)*x

<u>Equation First Train</u>

y1=70x

<u>Equation Second Train</u>

y2=80x

y1+y2=600\ miles ---------> equation 1

Substitute the values of y1 and y2 in the equation 1

70x+80x=600

Solve for x

150x=600

x=4\ hours

therefore

<u>the answer is</u>

4\ hours

4 0
3 years ago
Read 2 more answers
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