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Scilla [17]
4 years ago
10

Simplify 57 - 6^2 ÷ (2 + 1) · 4.

Mathematics
2 answers:
Charra [1.4K]4 years ago
4 0

Answer: 9

Step-by-step explanation:

romanna [79]4 years ago
3 0

Answer:

57-48

Step-by-step explanation:

9

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The sun is about 93 million miles from the earth. Express this distance in scientific notation.
Schach [20]

It would be 9.3 x 10(to the 7th power)

4 0
3 years ago
Oil is pumped into a tank at a rate of Q(t)=45-t gallons per minute where time is t is measured in minutes how many gallons are
FinnZ [79.3K]

Answer:

15 gallons

Step-by-step explanation:

Given that:

Pumping rate is modeled by the equation :

Q(t)=45-t gallons per minute ; where t is in minutes

Number of gallons in tank after 30 minutes ;

Q(t)=45-t

Q(30) = 45 - 30

Q(30) = 15

Hence, Number of gallons in tank after 30 minutes is 15 gallons

5 0
3 years ago
One hour on earth is four hours on planet S.
Andreas93 [3]

Answer:

The answer is 60 hours.

Step-by-step explanation:

We could use proportions to solve.

\frac{1 \: hour \: on \: earth}{4hours \: on \: planet \: s}  =  \frac{x}{240hours \:  on \: planet  \: s}

4 \times x = 4x \\ 1 \times 240 = 240

\frac{4x}{4}  =  \frac{240}{4}  \\ x = 60

3 0
3 years ago
What is the area of △ABC?
kirza4 [7]
Answer:
Area = 492.4 m²

Explanation:
The area of the triangle can be calculated using the side-angle-side method as follows:
Area = 0.5 * first side * second side * sin(angle included between these two sides)

This rule is illustrated in the attached image.

Now, we have:
AB = 40 m
BC = 25 m
angle B which is the angle included between AB and BC = 80 degrees

The given angle is included between the two given sides, therefore, we can apply the above rule to get the area.
Area of triangle = 0.5*40*25*sin(80)
Area of triangle = 492.4 m²

Hope this helps :)

3 0
3 years ago
The equation above shows how temperature F, measured in degrees Fahrenheit, relates to a temperature C, measured in degrees Cels
Maru [420]

If you think of the equation as an equation for a line.


y=mx+b

y

=

m

x

+

b


where


C=5/9(F−32)

C

=

5

/

9

(

F

−

32

)


or


C=5/9F−5/9(32)

8 0
4 years ago
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