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Ipatiy [6.2K]
3 years ago
14

Find the sum. Write your answer in scientific notation. (2×105)+(3.8×105)=

Mathematics
1 answer:
MissTica3 years ago
8 0

Answer:

6.09*10^2

Step-by-step explanation:

2*105=210

3.8*105=399

210+399=609

6.09*10^2

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Can somebody help with this??
lesantik [10]

Answer:

y = -0.25x2 - x + 4 (our answer)

Step-by-step explanation:

6 0
3 years ago
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se quiere pintar una pared en forma de hexágono regular y se sabe que cada lado mide 3m y que su apotema es de 2,8m cual es el a
qwelly [4]

Answer:

El área total a pintar será:

A_{tot}=25.2\: m^{2}

Step-by-step explanation:

Sabiendo el apotema y la longitu de los lados, podemos encontrar el área de un triangulo. Recordemos que, si trazamos rectas del centro del hexágono a los vértices, se formaran 6 triángulos equiláteros.

El área de un triángulo es:

A_{t1}=\frac{b*a}{2}

b es la longitud de la base (b=3 m)

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A_{t1}=\frac{2.8*3}{2}

A_{t1}=4.2\: m^{2}

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A_{tot}=25.2\: m^{2}

Espero te haya sido util!

5 0
3 years ago
Hi I really need help on 4 pls help
Katyanochek1 [597]

Answer:

a. Draw a column for each ticket sold. (For 0-9, draw a bar upto 2. For 10-19, draw a bar upto 4. For 20-29, draw a bar upto 3. And for 30-39, draw a bar upto 1.

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2 years ago
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3 years ago
How can a rational number and irrational number when multiplied together make a irrational number ?
pochemuha

Answer:

"The product of a rational number and an irrational number is SOMETIMES irrational." If you multiply any irrational number by the rational number zero, the result will be zero, which is rational. Any other situation, however, of a rational times an irrational will be irrational

A better statement would be:

"The product of a non-zero rational number and an irrational number is irrational

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