Answer: c. -4 degrees Celsius
Step-by-step explanation:
If it rises by 17°C, then add it to the -21°C in the thermometer:
-21 + 17 = -4°C
Hope this helps!
Answer:
Tax = $0.75
Tip = $2.25
Total (meal + tax + tip)= $18.00
Step-by-step explanation:
When solving for percentages of a number, such as sale tax and tip, multiplying the decimal equivalent of each percentage to the amount will give you the individual costs. For example, in this case the sales tax is 5%, the decimal equivalent of 5% = 5 ÷ 100 = 0.05. To find the amount of tax on Allam's meal, multiply the rate by the amount:
0.05 x $15 = $0.75
Since he plans to leave a 15% tip, we can also multiply the amount of the meal by the planned tip amount:
15 ÷ 100 = 0.15
0.15 x $15 = $2.25
Total amount paid, including tax and tip:
$15 + $0.75 + $2.25 = $18.00
Answer: OPTION C
Step-by-step explanation:
To solve the exercise shown in the image attached, you need to subtract the functions f(x) and g(x).
Keeping the above on mind, you have:
You must distribute the negative sign and then you must add the like terms, therefore, you obtain:
Answer:
Yes
Step-by-step explanation:
If they're perpendicular, that means that angle ECM = 90 degrees and angle ACE = 90 degrees. To figure out if this works, plug that into the two equations they give:
ECM = 3x + 15
becomes
90 = 3x + 15
75 = 3x
25 = x
ACE = 4x - 10
becomes
90 = 4x - 10
100 = 4x
25 = x
Since you get x = 25 for both, you know that they are perpendicular because they both measure 90 degrees
