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xxMikexx [17]
3 years ago
9

Is u = - 1/2 a solution of 8u - 1 = 6u

Mathematics
2 answers:
saul85 [17]3 years ago
6 0

Answer: No.

Step-by-step explanation: Sub -1/2 in for u in the equation:

8(-1/2) - 1 =6(-1/2)

=-4-1 = -3

=

-5=-3 which is false, so it is not a solution

kakasveta [241]3 years ago
5 0

Answer:

No

Step-by-step explanation:

Plugging in -1/2 for u:

8(-1/2) - 1 = 6(-1/2)

-4 - 1 = -3

-5 = -3 ... these are not equal

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two sides of a triangle measures 25 cm + 35 CM which of the following would be the measure of the third side
Oxana [17]
Assuming those are the legs of the triangle and that you need to find the hypotenuse... I would use the formula: a^2+b^2=c^2
It doesn't matter what a and b are, just fill it in.
25^2+35^2=c^2
625+1225=c^2
1850=c^2
Take the square root of 1850, it isn't a perfect square so I got: 43.01.
If you want, just round it to 43, idc. 
So, if I were to check my work, I would need to remember that the hypotenuse is the longest side.
Since 43 is the hypotenuse, it is the longest side. 

5 0
4 years ago
At 9:00 pm bob leaves his home and starts walking to the bus stop at a constant speed of 9.3 feet per second. bob's house is 432
klio [65]
a. define variables for the quantities that are changing (be specific).
 We define variables:
 t = time in second
 d = distance traveled
 The variables that are changing are t and d.
 As the time increases, the distance decreases.

 b. what does it mean to say bob walks at a constant speed of 9.3 feet per second?
 It means that for every second that passes, Bob walks 9.3 feet.

 c. consider the formula d = 4320 - 9.3t i. what does t represent? ii. what does 9.3t represent? iii. what does d represent? 
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5 0
3 years ago
HELP! what is the unit rate???
UkoKoshka [18]
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8 0
3 years ago
Read 2 more answers
How to solve for vertex form<br> y = -x^2 + 4x – 1
Nastasia [14]
Answer: y= -(x-2)^2+3
6 0
3 years ago
Solve the question below, please.
Ne4ueva [31]

Answer:

Adam: 52.26°

Step-by-step explanation:

Use Cosine Rule, Cos(C) = \frac{a^2 + b^2 - c^2}{2ab}, to find the angle of both players.

✔️Angle of Carlos:

Let the angle be C,

a = 50 ft

b = 40 ft

c = 24 ft

Plug in the values into the equation

Cos(C) = \frac{50^2 + 40^2 - 24^2}{2*50*40}

Cos(C) = \frac{3,524}{4,000}

C = Cos^{-1}(\frac{3,524}{4,000})

C = 28.24° (nearest hundredth)

✔️Angle of Adam:

Let the angle be C,

a = 30 ft

b = 22 ft

c = 24 ft

Plug in the values into the equation

Cos(C) = \frac{30^2 + 22^2 - 24^2}{2*30*22}

Cos(C) = \frac{808}{1,320}

C = Cos^{-1}(\frac{808}{1,320)}

C = 52.26° (nearest hundredth)

6 0
3 years ago
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