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3 years ago

What is the measurement of this angle?

Mathematics

1 answer:

Mice21 [21]3 years ago

3 0

I can’t see it can you add a better picture

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the sum of three numbers is 55. the second number is twice the first and the third number is five less than the second. What are

ArbitrLikvidat [17]

Let the first number be = x

Then the second number = 2x

The third number = 2x - 5

Their sum = 55

This can be written in an equation as =

x + 2x + 2x - 5 = 55

= x + 2x + 2x = 55 + 5 ( transposing -5 from LHS to RHS changes -5 to +5 )

= x + 2x + 2x = 60

= 5x = 60

= x = 60 ÷ 5 ( transposing ×5 from LHS to RHS changes ×5 to ÷5 )

= x = 12

The first number = x = 12

The second number = 2x = 2 × 20 = 24

The third number = 2x - 5 = 24 - 5 = 19

Therefore , the three numbers are 12 , 24 and 19 .

5 0

3 years ago

What is the formula for slope intercept form?

melisa1 [442]

Answer:

y^2-y^1 over x^2-x^1 is slope intercept form

4 0

3 years ago

The base of a 12-foot ladder is 5 feet from a building. To the nearest degree, what angle does the ladder make with the ground?

hoa [83]

Cos x=5/12. Solve for x which is 65.37 degrees.

5 0

3 years ago

A decorative steel is shown and it is made from circular circle and 6 stems.

STALIN [3.7K]

The total length of the steel used in the frame is 270 cm, if the decorative steel up of 6 stems and each stem is 45 cm.

Step-by-step explanation:

The given is,

Decorative steel made from circular circle of 6 stems

The length of the stem is 45 cm

Step:1

We need to find the total length of the steel used in the decorative steel,

Let, T - Total length of the steel

L - Length of the stem

n - Number of stems used in steel frame

Step:2

Formula to find the total length of the steel is,

$T=$ $l$ × $n$

From given,

$l$ = 45 cm

$n$ = 6 stems

Substitute the values in formula,

$T =$ ( 45 × 6 )

= 270

$T =$ 270 cm

Result:

The total length of the steel used in the frame is 270 cm.

5 0

3 years ago

The diagram shows a semi circle inside a rectangle of length 150 m. The semi circle touches the rectangle at a b and c. Calculat

belka [17]

Answer:

Step-by-step explanation:

<h3>C=π×d=3.142×160=502.72 </h3><h3>502.72/4=125.68cm </h3><h3>Because we can make from the rectangle two squares and then we would have 4 squares in total.</h3><h3>That is for 2 marks.If you have got any ideas for the other two marks,I would love to hear from you.I am doing the same question.Also,I see you have done question 7.Would you mind to help me with it?</h3>

5 0

3 years ago

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