if ac = 8x 14 and ec =2x + 11 solve for x

Answer:

Step-by-step explanation:

#1.

2x² + 24x + 10 = 0

2(x² + 12x + 5) = 0

2[ x² + 2(6)x + 6² - 6² + 5 ] = 0

2[(x + 6)² - 31] = 0

2( x + 6 - √31 )( x + 6 + √31 ) = 0

[tex]x_{1}[/tex] = - 6 + √31

[tex]x_{2}[/tex] = - 6 - √31

#2.

f(x) = 3x² - 36x - 12

f(x) = 3( x² - 12x - 4 )

f(x) = 3 [ x² - 2(6)x + 6² - 6² - 4 ]

f(x) = 3 [( x - 6 )² - 40 ]

f(x) = 3( x - 6 )² - 120

Answer:

*

Step-by-step explanation:

Answers

8 x - 1/2 = -4 - middle line

-3/4 x 8 = - 6 - side line

-3/4 - - 1/2 = -1/4 - top line

-1/2 - 1/2 = -1 - vertical line

Answer:

7

Step-by-step explanation:

32 muffins that carlos sells - 25 = 7 muffins

Answer:

7

Step-by-step explanation:

Fewer in this question = Subtract

32-25=7

Hence, Carlos sell 7 fewer muffins.

[RevyBreeze]

Answer:

C (-5,[tex]\frac{8}{3}[/tex])

Step-by-step explanation:

I uses demos graphing calculator

First, found the slope using point (0,6) and (3,8)

m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

m = [tex]\frac{8-6}{3-0}[/tex]

m = [tex]\frac{2}{3}[/tex]

m = slope

Now I will be able to form a linear equation:

y = mx + b (is our y-intercept, when x is 0) When x is 0, y is 6 (0,6)

y = [tex]\frac{2}{3}[/tex]x + 6

I graphed that on demos, and that's how I got my final answer.

I would attach the link to the graph, but brainly deleted my answer before. So, try to write that in to demos (y = [tex]\frac{2}{3}[/tex]x + 6) if you want to see the graph.  

Hope that helps!

Answer:

ABD

Step-by-step explanation:

Mark brainliest today afternoon message was not going that account was deleted

this is my new account ha Aryan hu

From the kite ABCD, ∠ABD = 65° and ∠CBD = 46°

∠ABC≅∠ADC

∠EDC = 180 - 90 - 44 (sum of angle in a triangle)

∠EDC = 46°

∠EDC ≅∠EBC

∠ADE = 180 - 25 - 90  (sum of angle in a triangle)

∠ADE = 65°

∠ADE ≅ ∠ABD(Base angle of isosceles triangle)

Therefore,

∠ABD = 65°

∠EDC ≅ ∠CBD (Base angle of isosceles triangle)

Therefore,

∠CBD = 46°

learn more on kites here: https://brainly.com/question/2913224

Answer:

1.66 cans or 1.6 rounded.

Step-by-step explanation:

1 can = 240ft

2 cans = 480ft

480 divided by 240 = 1.66666666667.

Rounded number = 1.66 and or 1.6

Answer:

[tex]1.25[/tex]

Step-by-step explanation:

[tex]5\left(4^4\right)\cdot 8^4\cdot 16^{-6}[/tex]

apply exponent rule: [tex]a^{-b}=\frac{1}{a^b}[/tex]

[tex]4^4\cdot \:8^4\cdot \:5\cdot \frac{1}{16^6}[/tex]

[ breakdown ]

[tex]5*4 * 4 * 4 * 4 *4 * 8 * 8* 8*8*\frac{1}{16^6}[/tex]

[ simply multiply ]

[tex]5242880 * \frac{1}{16^6}[/tex]

[ [tex]16^6 = 16777216[/tex] ]

[tex]20971520* \frac{1}{16777216}[/tex]

[ cancel and simplify ]

[tex]\frac{5}{4}[/tex]

[ in decimals ]

[tex]1.25[/tex]

Answer:

Angle BOD

Step-by-step explanation:

Supplementary means they add up to 180 degrees and make a straight line :D

Ao option D is correct

Answer:

k=11.111111111111, D=2600/39, A=16.81, C=400, W=27.75, K=10

Step-by-step explanation:

Hope this helped!

If A = 52 and K=22 then D = 63.44 and if Given A = 361 and K = 5 then

C = 398.0025.

A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.

Given, A = 52 and k = 22.

From the diagram, D is (100 + 22)% = 122% of A.

Therefore,

D = (122/100)×52.

D = 63.44.

Given, A = 361 and k = 5.

Therefore,

C = (105/100)×361

C = 379.05 and again 105% of 379.05.

C = (105/100)×379.05.

C = 398.0025

learn more about percentages here :

https://brainly.com/question/24159063

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Answer:

  (c)  All of the triangles are similar

Step-by-step explanation:

All of the triangles are similar by the AA similarity postulate.

__

Two angles of one triangle being the same as two angles of another triangle means all angles of the two triangles are the same. (Two angles define the third.) Triangles with congruent corresponding angles are similar.

The expression 5(4) - 6 + 5(4) - 6 is equivalent to (k + k)(4) option fourth is correct.

It is defined as the combination of constants and variables with mathematical operators.

The question is incomplete.

The complete question is:

If k(x) = 5x – 6, which expression is equivalent to (k + k)(4)?

Plug k = 4 in the function:

k(4) = 5(4) - 6

Now,

= (k + k)(4)  or

= k(4) + k(4)

= 5(4) - 6 + 5(4) - 6

Thus, the expression 5(4) - 6 + 5(4) - 6 is equivalent to (k + k)(4) option fourth is correct.

Learn more about the expression here:

brainly.com/question/14083225

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Answer:

Perimeter: 26.5m Area: 1,407.2136

Step-by-step explanation:

Perimeter: 3.9+ 7.4+ 4.6+ 10.6= 26.5m

Area: 3.9 × 7.4 × 4.6 × 10.6= 1,407.2136

Answer:

71

Step-by-step explanation:

Mean  57

Median 55

Range 71

Answer:

71

Step-by-step explanation:

Because range is biggest number-smallest number

Biggest number=98

Smallest number=27

98-27=71

have a great day :}

Answer:

50 Days

Step-by-step explanation:

I'm not sure what the unit "p" is, but I believe it is pennies so. $40/0.80 gives you 50 which is the amount of days it would take for you to get to $40 if you receive 80 cents a day

Answer:

no te entiendo amiga porque esta en inglés y yo entiendo dama español perdón yo lo se pero esta inglés

Answer:

the first one is a square and the second is a parallelogram and the third is rectangle,fouth is rhombuse and last one is trapizoid

Step-by-step explanation:

Answer:

-10p/3+32-3/2^p

Step-by-step explanation:

Answer:

the answer is 12.

Step-by-step explanation:

Hope this helps! :)

Answer:

20 ÷ [tex]\frac{5}{3}[/tex] = 12

Step-by-step explanation:

To make it a fraction form answer, you multiply the whole number by the denominator and make the result the new numerator. The old numerator becomes the new denominator:

20 x 3 divided by 5 = 60\5

Thus, the answer to 20 divided by 5/3 in fraction form is:

[tex]\frac{60}{5} = 12[/tex]

Step-by-step explanation:

just multiply.

you apply a fraction to a quantity by multiplying the fraction with the quantity.

a.

2/3 of 3/4 = 2/3 × 3/4 = 6/12 = 1/2

b.

2/5 of 3/4 = 2/5 × 3/4 = 6/20 = 3/10

c.

2/5 of 4/5 = 2/5 × 4/5 = 8/25

d.

4/5 of 3/4 = 4/5 × 3/4 = 12/20 = 3/5

Answer:

3.5k+5.3

Step-by-step explanation:

That's the answer when you subtract (7.5k-4)-4k-9.3)

5x + 25 + x + 5 = 90

6x + 30 = 90

6x = 90 - 30

6x = 60

x = 10

Solution:

We can see that the 90° angle is divided into two angles. Thus, the sum of two angles must equal 90°.

Combine like terms:

Subtract 30 both sides:

Divide 6 both sides:

The value of x is 10.

Answer:

96 cm

Step-by-step explanation:

for the triangles do 5×6×4

then divide it by 2 to get 60 then do 6×6 for the square to get 36. Add 36 and 60 together to get 96.

Answer:  Radeon R9 390 graphics card with a Core i5-2300 2.8GHz or FX-6350 processor

Step-by-step explanation:

Answer:

Equiangular and Equilateral

Step-by-step explanation:

I tried

Answer:

16ft

Step-by-step explanation:

The answer is 16ft because the area of a trapezoid is a + b/2  x h.

5 + 8/2 = 13/2 = 6.5

104/6.5 = 16

The height is 16ft.

Answer:

x ≤ -3

Step-by-step explanation:

3 - 5x ≥ 18

-5x ≥ 18 - 3

-5x ≥ 15

x ≤ -3

2.5x + 2y = 336

x = 2y

2 equations, 2 unknowns, solvable

3.5x = 336

7x = 672

x = 672 / 7

x = 96

96 / 2 = y

y = 48

they sold 96 popcorn bags and 48 pretzels