Answer:
He scores 7464 points
Step-by-step explanation:
58x134= 7772
22x(-14)= -308
7772-308= 7464
Hope this helps :D
Remark work with the two numbers that are 10^4 first. Then add in the one that goes to 10^3
Method one
You could change these all to integers and then take it back to scientific notation.
83 000
<u>-19 000</u>
64 000
<u>- 2 500
</u> 61 500 <u /><<<<<< answer
Method two
Keep the scientific notation.
8.3 * 10^4
<u>-1.9 * 10^4</u>
6.4 * 10^4
<u>- .25*10^4</u> Note the powers of ten must be the same.
6.15*10^4 <<<<<<<< answer
<u>
</u>Either method works.
<u>
</u>You could use your calculator to get the right answer. I'm not sure all calculators retain the scientific notation. Test yours to see what it does. Enter 8.3*10y^x 4 *1 =
<u>
</u>Your calculator might have x^y or ^ to record powers. You may also have EE and one of your keys.
<u>
</u>See if your calculator returns 8.3*10^4 or if it returns 83000<u>
</u>
Answer:
f(3) = -2
Step-by-step explanation:
Given the f(x) = -2x² + 3x + 7, to find f(3):
We can substitute 3 as the value of x in the given function:
f(x) = -2x² + 3x + 7
f(3) = -2(3)² + 3(3) + 7
f(3) = -2(9) + 9 + 7
f(3) = -18 + 9 + 7
f(3) = -9 + 7
f(3) = -2
Therefore, f(3) = - 2.
Please mark my answers as the Brainliest if you find this explanation helpful :)
Answer:
Sin (67°)
Step-by-step explanation:
Cos (23°) = sin(90-23) = sin (67°)
Answered by GAUTHMATH
