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3 years ago

Please help!! will give brainly :)

Mathematics

1 answer:

beks73 [17]3 years ago

4 0

Answer:

ab=30 ac=60

Step-by-step explanation:

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allsm [11]

∠DOC is the average of the given angle values,
(170° +44°)/2 = 107°

∠DOB is the supplement to that,
180° -107° = 73°

The appropriate choice is
B) 73°

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3 years ago

If x/3 = -15 then x = -45

vitfil [10]

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3 years ago

X - 0.25x = 0.75x

MrRissso [65]

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3 years ago

- Let y represent the width of a rectangle and let x represent the rectangle's lengu.

valentina_108 [34]

Answer:

Length: 21 cm and Width: 6cm

Step-by-step explanation:

Let $y$ be the width and $x$ length of the rectangle. We know:

$x = 4y -3$ -------- eq. 1

$54 = 2x + 2y$ (Perimeter of the rectangle) ------- eq. 2

Substitute equation 1 in equation 2:

$54 = 2(4y-3) + 2y\\54 = 8y - 6 + 2y\\54 + 6 = 8y + 2y\\60 = 10 y\\\\\frac{60}{10}= y\\y = 6$

Using the value of y, we find x.

$x = 4y - 3\\x = 4(6) -3\\x= 24 - 3\\x = 21$

4 0

4 years ago

Can somebody please help me with this question?

meriva

What, this is math right?

7 0

3 years ago