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Over [174]
3 years ago
5

1. In the diagram below, AB = AC, CB = CE, BD = BE, BC = 9 cm and CD = 5 cm. FindAC.

Mathematics
1 answer:
KengaRu [80]3 years ago
4 0

Answer:

if ab= ac and bc= 9 then ba=ac so there for b and a are equivalent so ac=9

Step-by-step explanation:

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Write the equation of a line that is parallel to 4x-2y=3 and is passing through the point (2,1)
Temka [501]

Answer:

y= 2x -3

Step-by-step explanation:

Let's rewrite the given equation into the form of y=mx+c, so that we can find the gradient of the line. In this form, m (coefficient of x) is the gradient.

4x -2y= 3

2y= 4x -3

<em>Divide</em><em> </em><em>by</em><em> </em><em>2</em><em> </em><em>throughout</em><em>:</em>

y = 2x - 1 \frac{1}{2}

Thus the gradient is 2.

Parallel lines have the same gradient thus the line would also have a gradient of 2.

Substitute m=2 into the equation:

y= 2x +c

To find the value of c, substitute a pair of coordinates.

When x=2, y=1,

1= 2(2) +c

1= 4 +c

c= 1 -4

c= -3

Thus, the equation of the line is y= 2x -3.

5 0
3 years ago
What is the equation of a line with a slope of -1/2 and passes through the point (6,-6)
Vlad [161]
Well I am going to assume you need slope-intercept form. So the equation is y=mx+b. m is slope, b is y intercept. So you just plug it in -6= -1/2(6)+b. -6=-3+b. Now you figure out for b so what does b have to be to make the equation equal. Well -3 so -6=-3+-3, or -6=-6. 

y=-1/2x-3
 
Hope that helped
3 0
3 years ago
MATH IS HARD. HELP<br> Change the following into a single fraction: 1− (a+b/a−b)
lianna [129]

Answer:

-2b/(a-b)

Step-by-step explanation:

1− (a+b/a−b)


We need to get a common denominator of a-b

1 = (a-b)/(a-b)

Replace 1 with (a-b)/(a-b)

(a-b)/(a-b) - (a+b)/(a-b)

Put over the common denominator

(a-b) - (a+b)

-----------------

(a-b)


Distribute the minus sign.

(a-b) - a-b)

-----------------

(a-b)

a-a-b-b

---------------

a-b


-2b

----------

a-b

6 0
2 years ago
In AUVW, the measure of ZW=90°, VU = 65, UW = 33, and
Viefleur [7K]

Answer: 56/33

Step-by-step explanation:

7 0
3 years ago
56 ounces to pounds ​
morpeh [17]

Answer:

3.5 pounds

Step-by-step explanation:

divide the mass by 16

3 0
3 years ago
Read 2 more answers
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