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ratelena [41]
3 years ago
14

I NEED HELP ASAP!!!!!

Mathematics
2 answers:
Elina [12.6K]3 years ago
6 0
Step 2 16 + 15 is not 21
Julli [10]3 years ago
4 0

Answer:

x actually = 13 and its step 2

Step-by-step explanation:

You might be interested in
Solve the equation for solutions over the interval ​[0​°, 360°​).
olchik [2.2K]

Answer:

x=98.13^\circ,135^\circ,278.13^\circ,315^\circ

Step-by-step explanation:

tan^2x+7tanx+8=0,[0^{\circ},360^\circ)

tan^2x+7tanx+8=0

u=tanx <-- U-substitution

u^2+7u+8=0

(u+7)(u+1)=0

(tanx+7)(tanx+1)=0 <-- Replace u with tanx

tanx+7=0

tanx=-7

x=98.13^\circ,278.13^\circ

tanx+1=0

tanx=-1

x=135^\circ,315^\circ

Therefore, x=98.13^\circ,135^\circ,278.13^\circ,315^\circ

6 0
3 years ago
What is the volume of the following rectangular prism 5/2 27/5
OleMash [197]

Answer:

13.5

Step-by-step explanation:

if im not mistaken there must be one more number because to find volume its length x breath x height

hope this helps

6 0
3 years ago
(2x)x(5x^2)= <br> I just needed to write more
prisoha [69]

Answer: 10x^3 hope that is correct

7 0
3 years ago
Mark just got his commercial driver's license and is starting a new career as a truck driver.
Virty [35]

Answer to break even, cost = earnings= $455, number of miles to cover is 11

Step-by-step explanation: cost =422+3x, where x= number of miles covered

Earnings=400+5x

St break even, cost = earnings, then solving the linear equation, by collecting like terms, and dividing through by 22. x=11, the Pu x=11 in the either the cost or earnings expressing to get 455

3 0
3 years ago
15 lbs equal to ___ kg
LenKa [72]
The answer should be 6.80
4 0
3 years ago
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