Find the values of x and y in the d

Answer:

[tex]Given,\\y = 4x+1......(1)\\y = 2x^2+7x-1.............(2)\\Equating~equation (1)~and~(2),\\4x+1 = 2x^{2} +7x-1\\or, 2x^{2}+7x-4x-1-1=0\\or, 2x^{2} + 3x-2=0\\or, 2x^{2} +4x-x-2=0\\or, 2x(x+2)-1(x+2)=0\\or, (x+2)(2x-1)=0\\i.e. x=-2 ~or~ \frac{1}{2} \\When~x=2,~equation(1)~becomes ~y=4(-2) +1=-7\\When~x=-\frac{1}{2},~equation (1)~becomes~y=4(\frac{1}{2}) +1 = 2+1=3[/tex]

So, the required values of x are -2 and 1/2 and that of y are -7 and 3.

Answer: 1. $45*1.07 | $45(1.07) 2. (0.85)*32 represent the final price of the cake in dollars because (0.85) is the 15% off in decimals.

Step-by-step explanation:

1 if you multiply 45 by 1.07 it will be 48.15 and that's the final cost of the book, same with $45(1.07) is just another way to represent the multiplication.

2 As I said the 0.85 represent the 15% off, and when you multiply it will be less.

Answer:

f(3)=15

Step-by-step explanation:

plug 3 in for x

f(3)=(4)+(12)-1=

16-1=

15

Answer:

1st angle will 60degree =90-60,. 1nd angle =60 degree.vertically opposite angle,

Answer: Expressions or equations, im not sure which

Step-by-step explanation: There isn't really one

Answer:

1,296

Step-by-step explanation:

I multiplied 6 four times.

Answer:

Wakaranai

Step-by-step explanation:

Answer:

YW = 6

Step-by-step explanation:

a^2 + b^2 = c^2

x^2 + 8^2 = 10^2

x^2 + 64 = 100

x^2 + 64 - 64 = 100 - 64

x^2 = 36

√x^2 = √36

x = 6

Line YW is equal 6 feet

Step-by-step explanation:

I used the pythagorean theorem

1. 8 squared plus b squared equals 10 squared

2. 64 plus b squared equals 100

3. 100 - 64 equals 36

4. B squared equals 36

5. square root both sides

6. b equals 6 feet

Answer:

B

Step-by-step explanation:

What are the ten major occupations in your city is a better question to begin gathering numbers for a graph or for some other representation of figures.

Pls mark brainliest. Thanks!

Answer: n = -56

Step-by-step explanation:

first, we multiply both sides by 7, un order to get the variable by itself. this is the important step.

-56 = n

then, we just simply swap the sides in order to get the variable on the left. (not necessary, just looks like a proper equation that way.)

n = -56

work:

-8 = n/7

x7    x7

-56 = n

n = -56

Answer:

47.8

Step-by-step explanation:

Answer:

Yes it is a rational number becuz it is in fraction form..

Answer:

5684.940

there is your answer

Answer: p(t) = (-16 ft/s^2)*t^2 + (57.4 ft/s)*t

Step-by-step explanation:

We can suppose that the only force acting on the object is the gravitational force, then the acceleration of the object will be equal to the gravitational acceleration.

Then we can write:

a(t) = -32 ft/s^2

Where the negative sign is because this acceleration is downwards.

Now, to get the vertical velocity of the object, we need to integrate over time to get:

v(t) = (-32 ft/s^2)*t + v0

where t represents time in seconds and v0 is the constant of integration, and in this case, is the initial vertical velocity.

In this case, the initial velocity is 57.4 ft/s upwards, then the velocity equation is:

v(t) = (-32 ft/s^2)*t + 57.4 ft/s

To get the position equation we need to integrate over time again, to get:

p(t) = (1/2)*(-32 ft/s^2)*t^2 + (57.4 ft/s)*t + p0

Where p0 is the initial height of the object, as it was launched from the ground, then the initial position is p0 = 0ft.

then the position equation (that is the function that represents the height of the object as a function over time) is:

p(t) = (1/2)*(-32 ft/s^2)*t^2 + (57.4 ft/s)*t

p(t) = (-16 ft/s^2)*t^2 + (57.4 ft/s)*t

Answer:

48

Step-by-step explanation:

formula for area of triangle = 1/2 bh

base = 12

height = 8

12 x 8 = 96

96 divided by 2 = 48

Answer:

48 units

Step-by-step explanation:

Hope you have a good day!

Answer:

(1,2)

Step-by-step explanation:

The solution would be where both lines intersect.

In this case, the intersected point is (1,2)

Answer:

[tex]27x-8[/tex]

Step-by-step explanation:

[tex]6(5x-2)-(3x-4)\\30x-12-3x+4\\27x-8[/tex]

Answer:

27x-8

(it wants me to add more words so good luck with whatever you're doing)

Answer:#2

Step-by-step explanation:

Answer:

1. 2x+7

2. -3x+2

3.-3x-4

4. x-1

5. -14x+1

Step-by-step explanation:

I hope this helps!

Answer:

1. 2x+7

2. -3x+2

3. -3x-4

4. x-1

Step-by-step explanation:

Answer:

itss the internet wht do u expect

Answer:

11y+10/3 if you're looking to simplify. hope this helps!!

Answer:

y=2

Step-by-step explanation:

multiply each side by 27 to get rid of the denominator

3(3y-6)= -9(4-2y) is what is left

solve

9y-18=-36+18y

9y=18

y=2

You can also plug in 2 to the equation to check.

Answer:

x=3, y=4

Step-by-step explanation:

Answer:

x=3 y=4

Step-by-step explanation:

Answer:

B. 5=5

Step-by-step explanation:

Answer:

(3x+1)(2x+1)

Step-by-step explanation:

Answer:

[tex]x2[/tex]=[tex]\frac{5-\sqrt{113} }{8} , x2 = \frac{5+\sqrt{113} }{8}[/tex]

Step-by-step explanation:

hope this help and if you can give me brainliest

Answer:

18 miles per gallon

Step-by-step explanation:

Answer:

I believe its 18

Step-by-step explanation:

216 divided by 12 is 18

Have a wonderful day! <3

Answer:no, there are always other ways. LIke this y> x.

Step-by-step explanation:

I use schoology too

Answer:

answer is 20

Step-by-step explanation:

do the math five times four equals 20