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notka56 [123]
2 years ago
11

Help please, please

Mathematics
2 answers:
klio [65]2 years ago
8 0

Answer:

x = 17

Step-by-step explanation:

Assuming you require to find x

4x - 3 and 115 are same- side interior angles and supplementary, sum to 180°

4x - 3 + 115 = 180

4x + 112 = 180 ( subtract 112 from both sides )

4x = 68 ( divide both sides by 4 )

x = 17

alexira [117]2 years ago
4 0
Since they’re in the same place you would do for 4 X -3 equals 115 and take it from there then you would find your answer and you may have to subtract it by 180
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If AB=6x-7 and BC=5x-3 find AC
luda_lava [24]

Answer:

AC= AB+BC

= 6x-7+ 5x-3

= 11x-10

4 0
3 years ago
Whats the answer & how do I solve it ?
Veseljchak [2.6K]

Answer:

Area of rectangle = 225/2 or 112.5

Step-by-step explanation:

Given,

Consider a rectangle ABCD.

Let AC be a diagonal of rectangle of length   = 15

In triangle  ABC.

Sin 45° =height/hypotenuse   {SinФ = height / hypotenuse}

Here, hypotenuse = diagonal of rectangle ( i.e AC = 15)

And height is AB

Therefore, sin 45° = AB/AC

or sin 45° = AB / 15

or 1/√2 = AB /15

AB = 15/√2

Similarly we can find Base (i.e BC) using cosine.

Cos 45° = Base/Hypotenuse

Cos 45° = BC / AC

or  1/√2 = BC/15

BC = 15/√2

Hence we got length of rectangle , AB= 15/√2

And width of rectangle , BC = 15/√2

Therefore, area of rectangle = Length × Width

Area of rectangle = 15/√2  ×   15/√2  = 225/2

Hence, area of rectangle = 225/2 = 112.5

6 0
3 years ago
In QRS the measures of S = 90° and the measures of Q = 64° and RS = 16 feet find the length of QR to the nearest 10th of a foot
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Step-by-step explanation:

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7 0
2 years ago
Justine correctly multipled the decials shown. How can the product be correct without three decial places 8.5 x 2.34 = 19.89
Sloan [31]

Answer:

The answer is "19.89".

Step-by-step explanation:

Given:

\to 8.5 \times 2.34

Solution:

     8.5 \times  2.34 \\-----\\

          340 \\

        255 \times

     \\ 17 0\times \times

-------\\

     19.890

\to 19.890 \approx 19.89

that's why the answer is correct.

6 0
3 years ago
Solve 5x-7x6=7x+6=-2(x-3)
Nata [24]

Answer:

i cannot tell where the seperate numbers are and where the x is multiplication and what numbers are negative. post it agian but put spaces in beetween.

Step-by-step explanation:

remember:

PEMDAS

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E- exponents

M- multiplication

D- division

A- addition

S- subtraction

note:

M, D are tied so do it left to right

A, S are tied so do them left to right

3 0
2 years ago
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