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4 years ago

To estimate the product of 5 and 193 round 193 to the nearest hundred before multiplying

Mathematics

1 answer:

Readme [11.4K]4 years ago

3 0

Round your number to 200 , then set up your equation,

200 - 5 after you have the equation it's pretty straight-forward but since i'm teaching elementary, its 195.

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Help!

dsp73

Your answer in scientific notation is 2.355 * 10^14

6 0

4 years ago

What is the value of x in the product of powers below plz I need help

Alexeev081 [22]

Answer:

x = -7

Step-by-step explanation:

Recall this rule of exponents:

a^b*a^c = a^(b+c)

We have:

6^9*6^x = 6^2

Then 9 + x = 2. Subtracting 9 from both sides, we get: x = -7

5 0

3 years ago

Please answer the question bellow

valentina_108 [34]

No solution

because delta ( b^2 - 4ac ) is lower than 0(zero) .

6 0

3 years ago

This is my next Trigonometry question I am needed help on- I just want to be sure I've got it right, or if not, then the steps I

makkiz [27]

$\bf \textit{simmetry identities}\\\\
sin(-\theta)=-sin(\theta)\\\\
-------------------------------\\\\
sin(-\theta)=\cfrac{1}{5}\implies -sin(\theta)=\cfrac{1}{5}\implies sin(\theta)=\cfrac{-1}{5}\cfrac{\leftarrow opposite=b}{\leftarrow hypotenuse=c}
\\\\\\
c^2=a^2+b^2\implies \pm\sqrt{c^2-b^2}=a\implies \pm\sqrt{5^2-(-1)^2}=a
\\\\\\
\pm\sqrt{24}=a\implies \pm2\sqrt{6}=a$

so. hmm which is it? the +/- ? well, neverminding for a second, the value of tangent, just looking at the sign, the tangent is positive,

tangent = opposite/adjacent.... so that only happens, when both are the same sign, + or - both

now, we know the sine is -1/5.. if the sine is negative, the cosine also has t to be negative, so we'd use the -2√(6) = a

thus $\bf cos(\theta)=\cfrac{adjacent}{hypotenuse}\implies cos(\theta)=\cfrac{-2\sqrt{6}}{5}$

4 0

3 years ago

Two sisters, Lily and Suri, have been saving money for college for the past several years. At the end of the first year, each si

andriy [413]

Answer:

1st year:

Lily:20

Suri:20

2nd year

L:20*3=60

S:20+80=100

3rd year

L:60*3=180

S:100+80=180

4th year

L 180*3=540

S 180+80=260

It will take Lily 4 years to hve more money saved than Suri

Step-by-step explanation:

8 0

4 years ago