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3 years ago

If you can answer any of these please do and put the question number by the answer

Mathematics

1 answer:

Free_Kalibri [48]3 years ago

4 0

Answer:

16. a = 13

Step-by-step explanation:

Equation: y = -4(-2) + 5

1) Multiply -4 with -2. Whenever you multiply two negatives, the product turn into a positive number; therefore, -4(-2) = 8

2) Then, add 8 and 5 which is 13.

Hope this helps!

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A frame contains 4 pounds of gold. Suppose gold is worth $1,277 per ounce. How much would the gold in the crown be worth? $5,108

Art [367]

Answer:

5108

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Determine which equation is parallel to the line JK and which is perpendicular to like JK

sattari [20]

Answer:

If the equation of JK is y = mx + c, then y = mx + c' is the equation of the straight line parallel to above and $y = - \frac{1}{m}x + b$ will be perpendicular to that.

Step-by-step explanation:

Let us assume that the line JK has the equation in slope-intercept form as

y = mx + c ............. (1)

Therefore, the equation has slope = m

Now, any straight line having an equation with slope m will be parallel to line JK.

So, the equation of the straight line which is parallel to equation (1) will be

y = mx + c', where, c' is any real constant.

Now, let us assume that another straight line having equation

y = nx + a is perpendicular to the line JK i.e. equation (1).

Now, we know if two lines are perpendicular to each other then the product of their slopes will be - 1.

So, mn = - 1

⇒ $n = - \frac{1}{m}$

Therefore, the equation of a straight line which is perpendicular to equation (1) will be $y = - \frac{1}{m}x + b$ where b is any real constant. (Answer)

3 0

3 years ago

Read 2 more answers

The sum of two numbers is 50. One number is 10 less than three times the other number. What are the two numbrs

andrezito [222]

Answer:

Step-by-step explanation:

I say its 40+10 because

40-10 (one number is 10 less than)=30

10(3) (three times the other number)=30

so 40+10=50

6 0

3 years ago

A car slows down at -5.00 m/s2 until it comes to a stop after traveling 15.0 m. How much time did it take to stop.

professor190 [17]

Answer:

2.45 seconds to the nearest hundredth.

Step-by-step explanation:

Acceleration a = -5, distance s = 15, time = ?.

Final velocity = v = 0.

We need to use the equations of motion under constant acceleration.

v^2 = u^2 + 2as where u is the initial velocity

0 = u^2 + 2*-5*15

u^2 = 150

so u = √150

Now we use v = u + at:

0 = √150 - 5t

t = √150/5

t = 2.45 seconds.

4 0

2 years ago

Please help:))))))

Veronika [31]

Answer:

1. 6x^2 + 4x - 4y

2. x - 10y.

3. 6x^5

4. 36 a^6 b^8

5. x^2 - 81

6. 9x^2 - 42x + 49

7. 12x^2 +3x - 42

Step-by-step explanation:

1. 3x^2+4x+3x^2-4y

Add the like terms, we get

6x^2 + 4x - 4y

2. (5x-2y)-(4x+8y)

Now distribute the negative sign, we get

5x - 2y -4x -8y

Simplify the like terms, we get

x - 10y.

3. 3x^3(2x)^2

Multiply the numbers and simplify the variables

6x^(3 +2)

6x^5

4. (-6a^3b^4)^2

Now bring the power 2 inside the parenthesis.

-6^2 a^6 b^8

= 36a^6b^8

5. (x+9) (x-9)

x^2 + 9x -9x - 81

x^2 - 81

6. (3x-7)^2

(3x - 7)(3x - 7)

9x^2 - 21x -21x + 49

9x^2 - 42x + 49

7. (3x+6) (4x-7)

12x^2 + 24x -21x - 42

12x^2 +3x - 42

Thank you.

8 0

3 years ago