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Vinil7 [7]
2 years ago
14

Please please help me with this question please now and show your steps

Mathematics
1 answer:
sattari [20]2 years ago
6 0

Answer:

y =  {x}^{2}  - 8x + 7 \\ a = 1 \: and \: b = -  8 \\ the \: line \: of \: symmetry \:  \\ x =  \frac{ - b}{2a}  =  \frac{8}{2}   \\ x = 4(line \: of \: symmetry) \\ y =  {4}^{2}  - 8(4) + 7  \\ = 16 + 32 + 7 = y = 55 \\ vertix \: is \: (4  ,55) \\ y =  {0}^{2}  - 8(0) + 7 \\ y = 7 \\ 0 =  {x}^{2}  - 8x + 7 \\ (x - 7)(x - 1) = 0

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I am R80000 pay 42% tax how much money do I pay in tax??​
soldier1979 [14.2K]

Answer:

46400 rands

Step-by-step explanation:

Because it's common sense

6 0
2 years ago
Acapulco, Mexico and Hyderabad, India both lie at 17° north latitude, and lie very nearly halfway around the world from each oth
Nataly_w [17]
In solving this problem we can consider Earth to be a sphere. When we have a circle, then we can use this formula to find arc length:
L=2 \pi R \frac{C}{360}
Where:
L= arc length (in this problem it is disance we need to travel)
R = radius of circle (in this problem it is equal to a radius of Earth)
C = angle we need to pass

We are told that two cities lie halfway around the world. If we fly to west this means angle is 180°.
This gives an arc length of:
L=2* \pi *3960* \frac{180}{360}  \\  \\ L=12440.71 miles

If we want to fly to north we need to go to 90° northern latidtude and then back to 17° latitude. This means angle is:
C=2*(90-17)=2*73°=146°
This gives an arc length of:
L=2* \pi *3960* \frac{146}{360} \\ \\ L=10090.8 miles

We can see that flying north is shorter. It is shorter by:
12440.71 miles - 10090.8 miles = 2349.91 miles
6 0
3 years ago
Would you use the Law of Sines or the law of cosines to solve a triangle if. given all three sides of the triangle?
Gre4nikov [31]

If you don’t have any of the angles, you would use the law of cosines to find an angle.

4 0
3 years ago
Seven tubs of yogurt cost $28. How much does one tub of yogurt cost?
baherus [9]

Answer:

4

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Paige was playing a trivia game where you gained points for correct answers and lost points for incorrect answers. At the start
victus00 [196]

Givens

Start = S = - 700

# Correct = C = 8

Value Correct = VC = 400

# Incorrect =I = 9

Value Incorrect =VI =  - 600

Equation

Score = S + C*VC + I*VI         Substitute

Solve

Score = -700 + 8*400 + 9(-600)

Score = -700 + 3200 - 5400

Score = - 700 - 2200

Score = - 2900 <<<<< Answer

5 0
3 years ago
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