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Minchanka [31]
2 years ago
11

HELPPPPPPP ITS URGENT ASAP ILL BRAINLISTTT!!!!!

Mathematics
2 answers:
Nina [5.8K]2 years ago
7 0

Answer:

Got you, fam

Step-by-step explanation:

19) -3x(4x - 5y)

20) 6x + 20

21) (a + 1) / 2a

22) 6

rosijanka [135]2 years ago
5 0

19. -4x(3x-5y)

20. 6x+ 20

21. \frac{a+1}{2a}

22. \frac{5x-23}{4}

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Two poles, AB and ED, are fixed to the ground with the help of ropes AC and EC, as shown:
kipiarov [429]

Answer:

15.59 feet

Step-by-step explanation:

We need to find BC and CD

First find BC

We can use the Pythagorean theorem

AB^2 + BC^2 = AC^2

11^2 + BC^2 = 13^2

121 + BC^2 =169

Subtract 121 from each side

121-121+BC^2 = 169-121

BC^2 = 48

Take the square of each side

sqrt(BC^2 ) = sqrt( 48)

BC = 6.92820323

then we need to find CD

We can use the Pythagorean theorem

CD^2 + DE^2 = CE^2

CD^2 + 5^2 = 10^2

CD^2 + 25 =100

Subtract 25 from each side

CD^2 + 25-25 =100-25

CD^2 = 75

Take the square of each side

sqrt(CD^2 ) = sqrt( 75)

BC = 8.660254038


BD = BC +CD

     = 6.92820323 + 8.660254038

     15.58845727


7 0
3 years ago
Write an equation of the line passing through the given point (6,-7) and having the given slope m=-9. Write the final answer in
Ede4ka [16]
Y-(-7)=-9(x-6)
Y+7= -9x+54
Subtract 7 from both sides
Y= -9x+47
3 0
3 years ago
Kieth ran a marathon. It took 3 hours and 2 mins to run 26 miles. If he ran at the same rate for the whole race, how many minute
baherus [9]
It took him 7 minutes to run each mile.

Firstly, covert the time into minutes.
3 * 60 = 180 minutes 
180 + 2 = 182 minutes

Now in order to find how long he ran each mile,
divide 182 by 26
182/26 = 7 minutes
7 0
3 years ago
Can you answer this please
Sauron [17]

Answer:

It's 2.

Step-by-step explanation:

When the denominator is 99 that means it is a repeating decimal

6 0
3 years ago
Read 2 more answers
Solve pls brainliest
Goshia [24]

Hey there!

39 = - u / 6

MULTIPLY 6 to BOTH SIDES

39(9) = (-u / 6)(6)

CANCEL out: the RIGHT side

KEEP: the LEFT side because it helps solve for the u-value

NEW EQUATION: -u = 234

DIVIDE -1 to BOTH SIDES

-1u / -1 = 234 / -1

CANCEL out: -1 / -1 because it gives you 1

KEEP: 234 / -1 because it gives you the result of the u-value

NEW EQUATION: u = 234 / -1

SIMPLIFY IT!

u = -234

Therefore, your answer is: [u = -234]

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

8 0
2 years ago
Read 2 more answers
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