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Luba_88 [7]
3 years ago
8

5{-3.4k-7} + {3k+21}

Mathematics
1 answer:
lina2011 [118]3 years ago
8 0
The answer is −14k−14. Hope this helps.
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HELP ME ASAP.. MY TEACHER IS ASKING FOR THE ANSWER ​
Solnce55 [7]

Answer:

a) 10.7 cm

b) 11.6 cm

c) 29.9 cm²

Step-by-step explanation:

a) sin(α)/a = sin(β)/b

sin(∠BCD)/BD = sin(DBC)/DC

sin(41°)/BD = sin(55°)/13.4

BD = 13.4*sin(41°)/sin(55°) = 10.73 cm ≈ 10.7 cm

b) From ΔBCD , ∠BDC = 180-(41+55) = 84°

∠ABD and ∠BDC are alternate interior angles, so they are congruent, and

∠ABD = ∠BDC  = 84°

AD²= AB² + BD² - 2*AB*BD*cos (∠ABD) =

= 5.6² + 10.73² - 2*5.6*10.73*cos(84°) = 133.93 cm²

AD =√(133.93) ≈11.6 cm

c) Area(ADB) = (1/2)*AB*BD*sin(∠ABD)=(1/2)*5.6*10.73*sin(84°) ≈ 29.9 cm²

5 0
3 years ago
Brainliest to first. I like rlly need help!
arlik [135]

Answer:

i think is (4, -4)  or (4,4).

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
The point nearest to the origin on a line is at (4, -4). Find the standard form of the equation of the line.
NikAS [45]

Answer:

I think it's C, x-y-8=0

Step-by-step explanation:

5 0
2 years ago
Casey has a job doing valet parking. Casey makes an hourly rate of $4.55 per hour plus tips. Last week Casey worked 26 hours and
qaws [65]
The answer is D. <span>$780.25 
</span>
In this particular case, you just need to find the difference between what Casey earn hourly with his total earning..

The hourly wage that Casey earned in 26 hours:
$ 4.55 x 26 = 118.3

The total amount that casey earned in 26 hours:
$898.55

So, the amount that Casey earned through tips:
$898.55 - $118.3 = $780.25 
7 0
2 years ago
Help with this please
olga2289 [7]

Answer:

( x + 2 ) and ( x - 11 )

Step-by-step explanation:

x² - 9x - 22 = 0

x² + 2x - 11x - 22 = 0

x ( x + 2 ) - 11 ( x + 2 ) = 0

( x + 2 ) ( x - 11 ) = 0

Factors of x² - 9x - 22 are ( x + 2 ) and ( x - 11 ).

8 0
3 years ago
Read 2 more answers
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