MATHEMATICS HIGH SCHOOL

Please help me asap i will help i
Please help me asap i will help i - 1

Answers

Answer 1
Answer:

Answer:

x=20

Step-by-step explanation:

Ques5) x value is 20 because 3x+6x=180

=>9x=180

=> x=180/9

=> x=20

Ques6) 6x= 6*x which is equal to 6*20=120

Ques7) 3x=3*x which is equal to 3*20=60

This is correct because 120+20=180 which is a straight angle given in the question. Hope this helped, Thank you.
Answer 2
Answer:

Answer:

the measurements must be incorrect because when you solve it, it is obvious that 6x is not a 90 degree angle and 3x is not 45 degrees.

Step-by-step explanation:

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A boat takes 8 hours to go 6 miles upstream and come back to the starting point. If the speed of the boat is 4 miles per hour in still water, what is the rate of the current? Hint: total time taken = time taken to go upstream + time taken to go downstream

Answers

Let x = velocity of the water current t1 = time taken to go downstream t2 = time taken to go upstream t1 + t2 = 8 t2 = 8 – t1 v = D/t Downstream (4 + x) = 6/ t1 t1 = 6/(4+x) Upstream (4 – x) = 6/t2 Substitute expression for t2 to obtain (4 – x) = 6/ (8-t1) Substituting the expression of t1 to make a single variable equation, obtaining 6 = (4-x)*(8 – 6/(4+x)) Solving for x, x= 3.16 m/s

Which graph correctly solves the system of equations below?x2 + y2 = 9
y = x + 3

Linear graph and circle. They intersect at negative 3, 0 and 0, 3
Linear and a quadratic graph. They intersect at negative 3, negative 5 and 2, 0.
Linear and a quadratic graph. They intersect at negative 2, 0 and 1, 3.
Linear graph and circle. They intersect at negative 2, 0 and 0, 2.

Answers

x^2 + y^2 = 9 . . . . . . . .  circle
y = x + 3 . . . . . . . (linear graph)

They intersect at (-3, 0) and (0, 3)

Answer:

They intersect at (-3, 0) and (0, 3)

Step-by-step explanation:

took the test hope it helps

Question 1 (2 point)(16.02 LC)
Which shape can be classified as a rectangle? (2 points)
a
Rhombus
Сь
Square
c
Trapezoid
d
Parallelogram

Answers

Answer d parallelogram

Simplify the expression (4x - 3)(x + 5).

Answers

=>(4x - 3) (x + 5)=>(4x × x )+( 4x × 5) - (3 × x ) -( 3 × 5)=>4x^2 + 20x -3x - 15=>4x^2 + 17x -15Hope it helps!!!
Wait I think it's 9x-3.. Sorry...

Add. 2.60 3.56 3.82 5.116 5.16 6.16

Answers

2.60 + 3.56 = 6.16

6.16 + 3.82 = 9.98

9.98 + 5.116 = 15.096

15.096 + 5.16 = 20.256

20.256 + 6.16 = 26.416

The final answer is 26.416

Answer:

6.16

Step-by-step explanation:

Pls help me!!!! I don't know this.

Answers

Answer:

Step-by-step explanation: I dont know this either
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