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jeka57 [31]
3 years ago
13

If 2/-5 x=-10/x what is the value of x​

Mathematics
2 answers:
Reil [10]3 years ago
8 0

Answer:

x=5

Step-by-step explanation:

Start with writing it like 2x/-5= -10/x

Then cross multiply: 2x^{2}= 50

Divide by 2: x^{2}=25

Square root of 25: 5

x=5

Dima020 [189]3 years ago
3 0

Answer:

± 5

Step-by-step explanation:

2x/-5 = -10/x

2x^2 = 50

x^2 = 25

x = ± 5

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the height of a plant in centimeters is modeled as a function of time, in days. consider this graph of the function enter the av
MrRa [10]

The average rate of change for the height of the plant measured in centimeters per day between day 0 and day 20 is 1.32 cm per day.

<h3>What is average height?</h3>

The average height is the ratio of change in height of the plant and the time taken taken for that change.

Given is the height of a plant in centimeters is modeled as a function of time, in days.

For day 0, the height is 18cm and the height for day 20 is 42 cm, then the average height change is

height per day = 42 - 18/ 20 -0

height per day  = 1.2 cm/day

Thus, the average height of plant is  1.2 cm/day.

Learn more about  average height.

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6 0
2 years ago
How does the number of zeros in the product of 8 and 5000 compare to the number of zeroes in the factor
almond37 [142]
The number of zeros in the product has 5 zeros and the zeros in the factor has 4 zeros because when you multiply 5,00x by8 you get 40,000
6 0
3 years ago
PLEASE CAN SOMEONE HELP ASAP!!!!!!!!<br> DUE BY 11:59 OMGGG
Vaselesa [24]

Answer:

A, C, F

Step-by-step explanation:

JK is proportional to PQ, so that would be 8/x. Then, JL is proportional to PR, which would be 10/5. So, the answer is: 8/x = 10/5

Then, C would also be correct as KL is proportional to QR, and JK is proportional to PQ.

Finally, F is correct as JK to KL is proportional to PQ to QR, as JK is proportional to PQ, and KL is proportional to QR.

5 0
2 years ago
What is y+5=-3(x-4)​
schepotkina [342]

Answer:y=-3x+7

Step-by-step explanation:y+5=-3(x-4)

=>y+5=-3x+12

=>y=-3x+12-5

•°•y=-3x+7.

8 0
3 years ago
The interior angles of a triangle are
lbvjy [14]

Answer:

8x+13y = 130

Step-by-step explanation:

sum of interior angles in a triangle is 180 degree

interior angles are (5x+3y)∘,(3x+20)∘, and (10y+30)

add all the angles and make it equal to 180

5x+3y+3x+20+10y+30= 180

combine like terms

5x+3y+3x+20+10y+30= 180

8x+13y+x+50= 180

subtract 50 from both sides

8x+13y = 130

4 0
3 years ago
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