2 years ago

Algebra 2 please help me out

Mathematics

1 answer:

Alisiya [41]2 years ago

5 0

Answer:

i dont know anyways

Step-by-step explanation:

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-40+2n=4n-8n+8 EXPLAIN IN NUMBER FORM AND NO WORDS

marin [14]

Answer:

−40+2n=−4n+8

−40+2n+40=−4n+8+40

2n=−4n+48

2n+4n=−4n+48+4n

6n=48

answer: n=8

Step-by-step explanation:

8 0

3 years ago

A rescue helicopter flew from its home base for 35 kilometers on a course of 330 degrees to pick up an accident victim. It then

artcher [175]

I've drawn a triangle to represent the journey (see attached.

The angle from Home to Victim to Hospital is:

a = $90 - (360 - 330) = 90- 30 = 60^o$

Using the cos rule, we can solve for the length x:

$a^2 = b^2 +c^2 - 2bccosA
\\x^2 = 35^2+25^2-2(35)(25)cos60
\\x^2 = 1850 - 875
\\x^2 = 975
\\x = \sqrt{975}
\\x = 31.2249...$

Using the cos rule, we can solve for angle b:

$a^2 = b^2 +c^2 - 2bccosA
\\35^2 = 31.22...^2+25^2-2(31.22...)(25)cosb
\\1225 = 975 + 625 - 1561.249...cosb
\\-375 = -1561.249...cosb
\\b = cos^{-1}( \frac{-375}{-1561.249...}) 
\\b = 76.1...$

So the bearing the helicopter has to travel is:

270 - 76.1 = 193.9 degrees (1 dp)

And the distance it travels is 31.2 km (1 dp)

5 0

3 years ago

Solve for x and explain your steps in detail using the R-E-S-T Method 8x - 4 = 92

Ganezh [65]

Answer:

Step-by-step explanation:

you add 92 with the 4 and get 96 then you divide the 8x with the 96 and get 12

Hope it helps <333

5 0

3 years ago

Read 2 more answers

Rashad works as a caterer. He gets a weekly fix amount of $50 and is paid $9 per hour. How many hours does he have to work to ea

frosja888 [35]

Answer:

12 hours

Step-by-step explanation:

We can set up an equation to model the situation:

y = 9x + 50

Now, we can plug in 158 as y and then solve for x:

158 = 9x + 50

108 = 9x

12 = x

6 0

3 years ago

help pls due in 1 hr and 30 min. "the area of a rectangle is 280cm squared. the length of this rectangle is three times the widt

Svetradugi [14.3K]

Answer:

840

Step-by-step explanation:

its 280 times 3 so you multiply

8 0

2 years ago