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AlekseyPX
3 years ago
6

Can you please help?

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
4 0

Answer:

6.5 km per minute

Step-by-step explanation:

To calculate the average speed, you add the speed of one trip to the speed of the other then divide by 2.

The first trip was a speed of 80km/10 minutes or 8km per 1 minute.

The second trip was a speed of 100km/20 minutes or 5km per 1 minute.

To find the average, add and divide by 2:

\frac{8+5}{2}=\frac{13}{2}=6.5  km per minute  

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I will be really happy if you help me out! :)
kykrilka [37]

Answer/Step-by-step explanation:

#8. Using the geometric mean theorem formula, h = √xy, where,

h = x

x = 4 and y = 16

Plug in the values

x = √(4*16)

x = 8

#9. Using the geometric mean formula, h = √xy, where,

h = y

x = 5 and y = 8

Plug in the values into the formula:

y = √(5*8)

y = √40

y = 6.3 (nearest tenth)

#10. Using the geometric mean formula, h = √xy, where,

h = 18

x = 12 and y = y = ???

Plug in the values into the formula:

18 = √(12*y)

Square both sides

18² = 12y

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7 0
3 years ago
Simplify the expression 6^3 +5(4-2)
ANTONII [103]

Answer:

Answer is 226.

Step-by-step explanation:

The expression is 6^3+5(4-2)

6^3 means that 6 will be multiplied 3 times.

6^3=6*6*6

=216

Now the expression becomes,

=216+5(4-2)

Now we will solve the round bracket.

4-2 evaluates to 2

=216+5(2)

Now we will multiply 5 and 2 which becomes 10

=216+10

=226

Therefore the answer is 226....

5 0
3 years ago
A salsa recipe uses green pepper, onion, and tomato in the extended ratio 2:5:9. How many cups of onion are needed to make 96 cu
son4ous [18]
2x+5x+9x=96
16x=96
X=6

Green peppers =2*6=12
Onions=5*6=30
Tomato =9*6=64

Onions are 30
3 0
3 years ago
a triangle with angles X(-6,1), Y(4,0), Z(1,3) is translated left 9 and up 12 . What are the new coordinates of the triangle
Sphinxa [80]
X= (-15,13) 
Y= (-5, 12)
Z= (-8, 15)
8 0
3 years ago
Please help! I’ll give brainlest. Idk the answer bruh it’s for a grade :/
slamgirl [31]

Answer:

A

Step-by-step explanation:

Process of elimination.

It can't be B or D cause those say that the temp go down while in your graph it goes up, and C is saying that it rises and becomes constant while in your graph it's the other way around.

6 0
3 years ago
Read 2 more answers
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