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Novosadov [1.4K]
3 years ago
9

Find the value of x in the figure given that SU = 133. A) 7 B) 9 C) 11 D) 8

Mathematics
2 answers:
Ray Of Light [21]3 years ago
8 0

Answer:

B

Step-by-step explanation:

Alekssandra [29.7K]3 years ago
4 0

Answer:

The answer is 9 (B)

Step-by-step explanation:

I got 9 because you have to plug in answer (7, 9, 11, 8) in each equation than add them both together. I first plugged in 7 for x in the equation 9x-5. I got 58. I plugged in 7 for x in the equation 5x+12 and got 47. When I added both the answers together I got 105. The answer was to low because SU has to be 133. I plugged in 9 for x in both equations then added them both and got 133 for SU. I hope this helps.

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How to write 33/100 as a decimal
dezoksy [38]
You divide the numerator (TOP) by the denominator (bottom);

So, 33 divided by 100 is:
0.33 which is the decimal.


Answer: 0.33
8 0
3 years ago
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Help me do question 1. 2. and 3. for 100 points and brainlyest to the first answer. If you need the questions feel free to ask.
ZanzabumX [31]
1.
a. there are 16 nickels so circle 12 
b. 12 times 5=  0.60
2. 
a. 12 dimes
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3. 
a. 10 quarters
b. circle 6 quarters (0.70)
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3 years ago
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Find the equation of the lines, that is parallel to the line 9x-8y=1, and tangent to the elipses 9x^2+16y^2=52.
lara31 [8.8K]

Answer:

The equations of the lines that satisfy these conditions are

y = (9/8)x + (13/4)

And

y = (9/8)x - (13/4)

They can be written further as

8y = 9x + 26

and

8y = 9x - 26

Step-by-step explanation:

The line parallel to the line 9x - 8y = 1 has the same slope as 9x - 8y = 1

Writing the equation of the line in the (y = mx + c) form

8y = 9x - 1

y = (9/8)x - 1

So, the line(s) we are looking for has/have slope(s) of (9/8).

Its equation is then

y = (9/8)x + k

This line is then said to be tangent to the ellipses

9x² + 16y² = 52

So, since the line is a tangent to the ellipses, it will have the same coordinates as the ellipses at the point of contact.

9x² + 16y² = 52

y = (9/8)x + k

y² = (81/64)x² + (18k/8)x + k²

y² = (81/64)x² + (9k/4)x + k²

Substituting this into the ellipses equation,

9x² + 16y² = 52

9x² + 16[(81/64)x² + (9k/4)x + k²] = 52

9x² + (81/4)x² + 36kx + 16k² = 52

29.25x² + 36kx + 16k² - 52 = 0

Taking note that the two lines that will be tangent to the ellipses and parallel to the line given, to establish tangency, we make the discriminant of this equation 0. Hence, the roots of that equation will have equal roots.

So, the discriminant, b² - 4ac = 0

29.25x² + 36kx + 16k² - 52 = 0

a = 29.25

b = 36k

c = 16k² - 52

(36k)² - (4)×(29.25)×(16k² - 52) = 0

1296k² - 1872k² + 6084 = 0

576k² = 6084

k = ±(13/4)

So, the equation(s) of the line(s) required is

y = (9/8)x ± (13/4)

So, the equations include

y = (9/8)x + (13/4)

And

y = (9/8)x - (13/4)

Multiplying by 8, we obtain

8y = 9x + 26

8y = 9x - 26

Hope this Helps!!!

6 0
3 years ago
What is 1/8 x 3/4 iready
Leokris [45]

1/8*3/4

multiply the numerators together

1*3=3

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8*4=32

answer:

3/32

7 0
3 years ago
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A scale on a map shows that 33 centimeters represents 10 kilometers.
tigry1 [53]

What’s the question?

4 0
3 years ago
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