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Marat540 [252]
3 years ago
14

Someone please help

Mathematics
2 answers:
Julli [10]3 years ago
4 0

Step-by-step explanation:

Blue : red

4:6

800:1200

C should replace the star

Oksana_A [137]3 years ago
4 0

Answer:

star=1200

Step-by-step explanation:

4:6

800:?

800÷4

1=200

6=1200

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Can someone pls help me with dis ill give brainliest​
ipn [44]

Answer:

274900

Step-by-step explanation:

Convert a number to and from scientific notation, e notation, engineering notation, standard form, and real numbers. Enter a number or a decimal number or scientific notation and the calculator converts to scientific notation, e notation, engineering notation, standard form and word form formats.

To enter a number in scientific notation use a carat ^ to indicate the powers of 10. You can also enter numbers in e notation. Examples: 3.45 x 10^5 or 3.45e5.

Order of magnitude will also be identified for the calculated standard form. The order of magnitude when written in standard form, is the nth power of 10. For example, 3.4 x 10^5 has an order of magnitude of 5 since 10 is raised to the 5th power.

5 0
3 years ago
Read 2 more answers
The area of circle 200mm is diameter approximately how many times greater the the are of a circle40mm in diameter
umka21 [38]

Answer:

The area of a circle is pi times radius squared. So the area is proportional to radius squared. 200/40 = 5, and 5 squared = 25.

Step-by-step explanation:

pls give me thanks and brainliest

7 0
3 years ago
Please help i have to finish 15 assignments today including a final exam and i dont know what im doing
Sergio039 [100]

Answer:

(-1,6) ; (-2,11)

Step-by-step explanation:

y= x^2-2x +3

y= -5x + 1

the best way to proceed is substitute the value of y shows in the second equation in the first equation (general rule: substitute the value shows in the linear equation in the quadratic equation)

-5x + 1 = x^2-2x+3

x^2 +3x + 2 = 0

(x+2)(x+1) = 0

x = -2

x = -1

Solution 1

x = -1

y = 5 + 1 = 6

Solution 2

x = -2

y = 10 + 1 = 11

5 0
3 years ago
Line 1 passes through the points (9,-4) and (3, 2)
riadik2000 [5.3K]

Answer:

y = -1x + 4

Step-by-step explanation:

equation for one is y = -1x + 5 simple going back from point (5,-2) gave me a b of 4 so yess

6 0
3 years ago
What is the perimeter of a<br> square with a side length<br> of 7.3 cm?
Dmitrij [34]
29.2 is your answer
7 0
3 years ago
Read 2 more answers
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