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3 years ago

DISCOVO

Mathematics

1 answer:

stepladder [879]3 years ago

7 0

Answer:

Step-by-step explanation:

a = b - 60 , where b is 78

a = 78 - 60

a = 18

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If bcd~gef find value of x

ddd [48]

Answer:

$x = 13$

Step-by-step explanation:

Given

See attachment

Required

Find x

From the attachment, we have:

$BC = x + 4$

$BD = 2x - 7$

$GE = 51$

$GF = 57$

Because both triangles are similar, we use the following equivalent ratios:

$BC : BD = GE : GF$

Substitute values for each parameter

$x + 4 : 2x- 7 = 51 : 57$

Convert to fractions

$\frac{x + 4}{2x- 7} = \frac{51 }{ 57}$

Simplify the right-hand side

$\frac{x + 4}{2x- 7} = \frac{17}{19}$

Cross Multiply

$19(x + 4) = 17(2x - 7)$

$19x + 76 = 34x - 119$

Collect Like Terms

$19x - 34x = -76 - 119$

$-15x = -195$

Solve for x

$x = \frac{-195}{-15}$

$x = 13$

3 0

3 years ago

Solve for w.<br> – 7(2w – 3) + 7w=3(w+2)

kvasek [131]

Answer:

w=1.5

Hopefully that helps

Step-by-step explanation:

5 0

3 years ago

If m A.129 <br> B.43 <br> C.137 <br> D.86

Rudik [331]

Answer:

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Step-by-step explanation:

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3 years ago

One of the tables below contains (x,y) values that were generated by a linear function. Determine which table, and then write th

alexandr402 [8]

Table #1:

Using the first two points (2,1) and (5,3)

You get (x-2)/3 = (y-1)/2

But then the 3rd point (8,7) does not work, so this is not linear.

Table #2

Using the first two points (1,10) and (2,13)

You get x-1 = (y-10) /3

But then the 3rd point (3,18) does not work so this is also not linear.

Table #3

Using the first two points (2,1) and (4,6)

You get x-2 /2 = y-1 /5

And all the other points will work with this, which makes this table linear.

Rewrite the equation to get y = 5/2x-4

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3 years ago

DJ movie collection is constantly crying you already had a large number of movies but his friend just gave him a donation that w

Veronika [31]

Step-by-step explanation:

lol! thanks for the point

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8 0

3 years ago