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1 year ago

2x+9=2x-5 what is x in this situation

Mathematics

2 answers:

12345 [234]1 year ago

8 0

I’m not very sure but I believe it is -4

Alexxandr [17]1 year ago

7 0

your answer would be x=4 i believe

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Combine the like terms to make a simpler expression: 5k (-2k)-(-1)

TiliK225 [7]

Hey there, Lets solve this problem together.

Our first step will be to gather like terms

 $5*-2k*k+1$

Simplify 5×−2k×k to −5×2k×k

 $-5*2k*k+1$

Simplify 5×2k×k to 10k^2

 $-10k^2+1$

7 0

3 years ago

Read 2 more answers

A food company distributes its tomato soup in two cans of different sizes. For the larger can, both the diameter and the height

Lady_Fox [76]

Problem

A food company distributes its tomato soup in two cans of different sizes. For the larger can, both the diameter and the height have been increased by 15%.

By what percentage does the volume increase from the smaller can to the larger can? Round your answer to the nearest percent.

Solution

the volume of a cylinder is given by:

$V=\pi r^2h$

We know that the diameter=radius and the height are increased by 15% so then the new volume can be calculated on this way:

$V=\pi(1.15r)^2\cdot(1.15h)=1.15^2\cdot1.15\cdot\pi\cdot r^2\cdot h=1.52\pi r^2h$

And the new volume would increase about 52%

5 0

1 year ago

Addition & subtraction: find the missing valueFind the missing value. -3=-7−3=−7

zepelin [54]

Did you write the problem right

5 0

3 years ago

Consider an arbitrary ellipse x 2 a 2 + y 2 b 2 = 1. (Assume a, b > 0.) (a) Find a parametrization of the ellipse using the d

uysha [10]

Answer:

α(t) = (-a*Sin(t), b*Cos (t)) where t ∈ [0, 2π]

Step-by-step explanation:

Given an arbitrary ellipse (x²/a²) + (y²/b²) = 1 (a, b > 0)

The parametrization can be as follows

x = -a*Sin(t)

y = b*Cos (t)

then

α(t) = (-a*Sin(t), b*Cos (t)) where t ∈ [0, 2π]

If t = 0

α(0) = (-a*Sin(0), b*Cos (0)) = (0, b)

If t = π/2

α(π/2) = (-a*Sin(π/2), b*Cos (π/2)) = (-a, 0)

If t = π

α(π) = (-a*Sin(π), b*Cos (π)) = (0, -b)

If t = 3π/2

α(3π/2) = (-a*Sin(3π/2), b*Cos (3π/2)) = (a, 0)

If t = 2π

α(2π) = (-a*Sin(2π), b*Cos (2π)) = (0, b)

We can see the sketch in the pic.

7 0

3 years ago

Read 2 more answers

PEOPLE WHO ARE GOOD AT MATH CAN YOU PLEASE HELP ME!!!

OlgaM077 [116]

The cost of using 19 HCF of water is $32.49

Given in the question:

The monthly cost (in dollars) of the water use (in dollars) is a linear function of the amount of water used (in hundreds of cubic feet, HCF)

The cost for using 17 HCF of water is using $32.13

and, the cost of using 35 HCF is $61.83.

To find the cost of using 19 HCF of water.

Now, According to the question:

The cost for using 17 HCF of water is $32.13

and, the cost of using 35 HCF is $61.83.

To find the slope:

(17, 32.13) and (35, 61.83)

Slope = (61.83 - 32.13)/ (35 - 17) = 1.65

We know that:

Formula of slope :

y = mx + b

32.13 = 1.65 x 17 + b

b = 1.14

The equation will be :

C(x) = 1.65x + 1.14

Now, To find the cost of using 19 HCF of water.

C(19) = 1.65 × 19 + 1.14

C(19) = $32.49

Hence, the cost of using 19 HCF of water is $32.49.

Learn more about Slopes at:

brainly.com/question/3605446

#SPJ1

6 0

11 months ago