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4 years ago

Which expressions are equivalent to {22c + 33d}22c+33d22, c, plus, 33, d?

Mathematics

2 answers:

Ket [755]4 years ago

8 0

Answer:

A, C, E

Step-by-step explanation:

kotegsom [21]4 years ago

4 0

A
(-2c-3d) (- 11) (- 2c-3d) (- 11) left parenthesis, minus, 2, c, minus, 3, d, right parenthesis, left parenthesis, minus, 11, right parenthesis
C
(66c + 99d) \ cdot \ dfrac {1} {3} (66c + 99d) ⋅ 3
1 left parenthesis, 66, c, plus, 99, d, right parenthesis, dot, start fraction, 1, divided by, 3, end fraction
 E
11\cdot(2c+3d)11⋅(2c+3d)11, dot, left parenthesis, 2, c, plus, 3, d, right parenthesis
 answer
(-2c-3d) (- 11) = 22c + 33d
(66c + 99d) * 1/3 = 22c + 33d
11 * ( 2c+3d) = 22c + 33d

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Find the x-intercepts and y-intercept for the parabola below. Write answers as (x,y) coordinates.

poizon [28]

Assuming the function is $y=2x^2-4x-6$
the x intercepts are where the graph hits the x axis or where y=0
the y intercepts are where the graph hits the y axis or where x=0

x intercepts
set y=0 and find x
$0=2x^2-4x-6$
$0=2(x^2-2x-3)$
what 2 numbers multiply to get -3 and add to get -2?
-3 and 1
$0=(2)(x-3)(x+1)$
set to 0
0=x-3
3=x
0=x+1
-1=x

x intercepts are at x=-1 and 3 or the points (-1,0) and (3,0)

y intercepts are where x=0
set x=0
$y=2(0)^2-4(0)-6$
$y=0-0-6$
$y=-6$
y intercept is at (0,-6)

x intercepts are at (-1,0) and (3,0)
y intercept is at (0,-6)

5 0

3 years ago

There were 22 defects out of 178. How many defects are there out of 2047?

luda_lava [24]

Answer:

253

Step-by-step explanation:

All you need to do is divide 2047 by 178 to get 11.5. Multiply 11.5 by 22 to get 253. 22/178=x/2047

3 0

3 years ago

Write an equation in slope -intercept form for a line that passes through (-2,7) and (14,21)

Georgia [21]

(-2,7) and (14,21)

Find the slope by using the formula $m = \frac{y2 - y1}{x2 - x1}$

Plug in the numbers. $m = \frac{21 - 7}{14 - - 2} 
 \\ m= \frac{14}{16} = \frac{7}{8} 
$

Write it in point slope form first

y - y1 = m(x - x1)
y - 7 = 7/8(x - -2)
y - 7 = 7/8x + 1.75
+ 7 +7

y = 7/8x + 8.75

Our final equation would be: y = 7/8x + 8.75

7 0

4 years ago

Find the solution for the system of linear equations by graphing: y=x Y=2x -4

Arte-miy333 [17]

Answer:

x and y = 4

Step-by-step explanation:

Since y=x ---> x=2x-4

-x -x

0=x-4

+4 +4 ------------------> Therefore, x= 4 and y= y

If you could graph both lines you would find they intersect at (4,4)

6 0

3 years ago

Read 2 more answers

Natural numbers are ____ integers

Brilliant_brown [7]

Answer:

Natural numbers are the set of positive integers

Step-by-step explanation:

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4 0

4 years ago