3 years ago

Can someone please help me with math.

Mathematics

1 answer:

xxTIMURxx [149]3 years ago

7 0

Answer:

Step-by-step explanation:

If you multiply all sides by 2 you get the same dimensions.

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Part 4. Find the missing sides for the 30 60 90 triangles. Please show work for each

inna [77]

10. tan(30) = l / 6√3

l = tan(30) x 6√3

l = 6

cos(30) = 6√3 / y

y = 6√3/cos(30)

y = 12

11. tan(30) = c/30

c = 30 x tan(30)

c = 10√3

cos(30) = 27/w

w = 27/cos(30)

w = 18√3

12.

sin(60) = 36/y

y = 36/sin(60)

y = 24√3

tan(60) = 36/x

x = 36/tan(60)

x = 12√3

7 0

4 years ago

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Is my proportion right or wrong...if not what is the correct answer?!!

12345 [234]

Sorry im not 100% sure but i do think it is right.

8 0

3 years ago

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David is going to buy a cooker.

valina [46]

Answer:

David should pay £48 as deposit.

Step-by-step explanation:

Price of cooker = £320

Deposit price of Cooker = 15%

We need to find How much money does David pay as a deposit?

For finding deposit money we will find:

15% of 320

Solving:

$15\% \ of \ 320\\=15\% \times 320\\=\frac{15}{100}\times 320 \\=48$

So, David should pay £48 as deposit.

5 0

3 years ago

What is the equation of the quadratic graph with a focus of (−4, seventeen eighths ) and a directrix of y = fifteen eighths

Lunna [17]

Standard form for a parabola:
( x - h )² = 4 p ( y - k )
Vertex: ( h, k ) = ( -4, 2 )
Displacement from vertex to focus:
p = 2/8 = 1/4
( x + 4 )² = 4 · 1/4 ( y - 2 )
y = ( x + 4 )² + 2
or general form:
x² + 8 x - y + 18 = 0

5 0

3 years ago

How to evaluate 4(x+2−5x) when x=2

Crank

Answer:

-24

Step-by-step explanation:

4(x+2−5x)

Combine like terms

4(2 -4x)

Distribute

8 -16x

Let x=2

8 - 16(2)

8 - 32

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3 years ago

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