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3 years ago

Can Someone Simplify this 2 ( 3 X - 4 ) + ( X + 11 ) + 5

1 answer:

8 0

First, distribute 2 through the parentheses.
Then, take out the parentheses of (x+11)

6x-8+x+11+5

Now collect the like terms.

6x+x=7x
-8+11+5=+8

So the answer is: 7x+8

You might be interested in

Write a mathematical sentence for the inequality twice the difference of a number and seven is less than or equal to forty

Illusion [34]

$2x + 7\leqslant 40$
Sounds like that to me but that is symbolically showing of that's what your teacher means as mathematical sentence

5 0

3 years ago

Read 2 more answers

WILL GIVE BRAINLIEST!!!!!!

Crank

Answer:

17.738

Step-by-step explanation:

to find x we’ll use sine

sin69=x/19

(remember that sine = opposite/hypotenuse)

so x = 19sin69

when typing this in your calculator you might need to change from radian to degree mode

7 0

2 years ago

Select three ratios that are equivalent to 8:20 Choose 3 answers: (A. 1:4

denpristay [2]

Answer:

8:20

divide by 2

B. 4:10

multiply by 3

C. 24: 60

divide by 4

D. 2:5

8 0

3 years ago

2x^2+3x-2, a=0 How do I find the derivative?

Ghella [55]

You can use the definition:

$\displaystyle f'(x) = \lim_{h\to0}\frac{f(x+h)-f(x)}h$

Then if

$f(x) = 2x^2+3x-2$

we have

$f(x+h) = 2(x+h)^2+3(x+h) - 2 = 2x^2 + 4xh+2h^2+3x+3h-2$

Then the derivative is

$\displaystyle f'(x) = \lim_{h\to0}\frac{(2x^2+4xh+2h^2+3x+3h-2)-(2x^2+3x-2)}h \\\\ f'(x) = \lim_{h\to0}\frac{4xh+2h^2+3h}h \\\\ f'(x) = \lim_{h\to0}(4x+2h+3) = \boxed{4x+3}$

I'm guessing the second part of the question asks you to find the tangent line to f(x) at the point a = 0. The slope of the tangent line to this point is

$f'(0) = 4(0) + 3 = 3$

and when a = 0, we have f(a) = f (0) = -2, so the graph of f(x) passes through the point (0, -2).

Use the point-slope formula to get the equation of the tangent line:

y - (-2) = 3 (x - 0)

y + 2 = 3x

y = 3x - 2

5 0

3 years ago

The value of y varies directly with x. When y=55, x=1/4. Determine the constant of proportionality

docker41 [41]

Answer:

k = 220

Step-by-step explanation:

Proportion of y and x

y = kx

Given :

y = 55
x = 1/4

Solving :

55 = k/4
k = 55 x 4
k = 220

4 0

2 years ago