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2 years ago

Multiply. Write your answer in scientific notation. (2 x 10^7) (1 x 10^7)

Mathematics

1 answer:

loris [4]2 years ago

7 0

2 x 10exponent 14 I think

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Solve 12x-5>-2 please

Stells [14]

Answer:

$x > \frac{1}{4}$

Step-by-step explanation:

$12x - 5 > - 2$

Lets add +5 in both the sides.

$= > 12x - 5 + 5 > - 2 + 5$

$= > 12x > 3$

Now lets divide 12 on both the sides.

$= > \frac{12x}{12} > \frac{3}{12}$

$= > x > \frac{1}{4}$

8 0

3 years ago

A family plans to water ski at a local lake. If the temperature outside is 30 degrees C, what is the temperature in degrees F? U

Sphinxa [80]

30 degrees C = 86 degrees F

8 0

3 years ago

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Solve for c 8/3c -2= 2/3c-12

Anna [14]

Answer: C = -5

Step-by-step explanation:

You have to add two on both sides and the remove 2/3 on both sides. Hope this helps

<!> Brainliest is appreciated! <!>

4 0

3 years ago

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To prove :One plus cot square theta into tan theta by sec square theta = cot theta

pickupchik [31]

we are given

$\frac{(1+cot^2(\theta))*tan(\theta)}{sec^2(\theta)} =cot(\theta)$

We will simplify left side and make it equal to right side

Left side:

$\frac{(1+cot^2(\theta))*tan(\theta)}{sec^2(\theta)}$

we can use trigonometric identity

$1+cot^2(\theta)=csc^2(\theta)$

we can replace it

$\frac{(csc^2(\theta))*tan(\theta)}{sec^2(\theta)}$

we know that

csc=1/sin and sec=1/cos

so, we can replace it

and we get

$\frac{cos^2(\theta)tan(\theta)}{sin^2(\theta)}$

now, we know that

tan =sin/cos

$\frac{cos^2(\theta)*sin(\theta)}{sin^2(\theta)*cos(\theta)}$

we can simplify it

and we get

$\frac{cos(\theta)}{sin(\theta)}$

we can also write it as

$=cot(\theta)$

Right Side:

$cot(\theta)$

we can see that

left side = right side

so,

$\frac{(1+cot^2(\theta))*tan(\theta)}{sec^2(\theta)} =cot(\theta)$ ......Answer

6 0

3 years ago

Check the obtained values of 4s²+12s=-9

marta [7]

$\\ \bull\tt\looparrowright 4s^2+12s=-9$

$\\ \bull\tt\looparrowright 4s^2+12s+9=0$

$\\ \bull\tt\looparrowright 4s^2+6s+6s+9=0$

$\\ \bull\tt\looparrowright 2s(2s+6)+3(2s+3)=0$

$\\ \bull\tt\looparrowright (2s+6)(2s+3)=3$

$\\ \bull\tt\looparrowright s=-2\:or\:s=\dfrac{-3}{2}$

6 0

2 years ago

Read 2 more answers