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Luda [366]
3 years ago
5

Please help me find the answer

Mathematics
1 answer:
Mrac [35]3 years ago
6 0
Complementary angles
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4x^2+5y^2=41<br> 3x^2-4y^2=23
dybincka [34]

Answer:

i dont know the answer sry

Step-by-step explanation:

srryyy

5 0
3 years ago
Answer both please asap (there’s a picture)
krek1111 [17]

Answer:

(0, 1)

Step-by-step explanation:

So, the spot on the graph where they cross.

4 0
3 years ago
Read 2 more answers
The diameter of the average cell in the human body is 1 x 10-5 meters. The diameter of a grain of sand is about 2 x 10-4 meters.
MariettaO [177]
PART A:

Scientific notation is given by A×10ⁿ where A is any number in a unit and 'n' is an integer.

0.000025 = 2.5×10⁻⁵

PART B:

Diameter of grain of sand ÷ Diameter of human body average cell
(2×10⁻⁴) ÷ (1×10⁻⁵) 
(2÷1) × (10⁻⁴÷10⁻⁵)
2 × (10⁻⁴ ⁻ ⁻⁵) = 2 × 10⁽⁻⁴⁺⁵⁾ = 2 × 10¹ = 20 times bigger

PART C:

The diameter of human body's average cell in nanometer
1 × 10⁻⁵ metre = 1 × 10⁻⁵ × 10⁹ = 1 × 10⁽⁻⁵⁺⁹⁾ = 1 × 10⁴ nanometer

PART D:

Smallest bacteria = 300 nanometer
300 nm = 300 ÷ 10⁹ = (3 × 10²) ÷ 10⁹ = 3 × (10²⁻⁹) = 3 × 10⁻⁷ meter

PART E:

Laws of exponents that are applied in scientific notation is 

xᵇ × xᵃ = x⁽ᵇ⁺ᵃ⁾
xᵇ ÷ xᵃ = x⁽ᵇ⁻ᵃ⁾

7 0
2 years ago
If a woodchuck could chuck 2<br> pieces of wood every hour, how big is a beavers dam?
Nataly_w [17]

Answer:

How many hours?

Step-by-step explanation:

the answer to this is 2x

X is the number of hours and you multipy it by 2 wood

6 0
3 years ago
Find the slope of the line that contains (-1,9) and (9,9).
Artyom0805 [142]

Answer:

0

Step-by-step explanation:

When we have 2 points, we can find the slope from

m = (y2-y1)/(x2-x1)

   = (9-9)/(9--1)

   = 0/(9+1)

    = 0/10

   0

5 0
3 years ago
Read 2 more answers
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