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12345 [234]
3 years ago
12

Find the missing angle. (PLEASEEE HURRYYY)

Mathematics
1 answer:
barxatty [35]3 years ago
7 0

Answer:

B

Step-by-step explanation:

360 - (100+91+95) = 74

Because angles in a quadrilateral add upto 360 degrees

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Edward wants to spend less than $115 to buy a
nikdorinn [45]

Answer: x < 30

Step-by-step explanation:

Let the cost of a jean be x

cost of a shirt = $25

cost of 3 jeans = 3x

since he wants to spend less than $115 , this means that

3x + 25 < 115

3x < 115 - 25

3x < 90

x < 30

7 0
3 years ago
Trevor is analyzing a circle, y2 + x2 = 100, and a linear function g(x). Will they intersect?
lakkis [162]
Given a circle described by the equation:
y^2+x^2=100
and a function g(x) given by the table
\begin{center}&#10;\begin{tabular}{ |c |c |c }&#10; x & g(x) \\&#10; -1 & -22 \\&#10; 0 & -20  \\&#10;1 & -18   &#10;\end{tabular}&#10;\end{center}

The function g(x) describes a straight line with the equation:
\frac{y-y_1}{x-x_1} = \frac{y_2-y_1}{x_2-x_1}  \\  \\  \frac{y-(-22)}{x-(-1)} = \frac{-20-(-22)}{0-(-1)}  \\  \\ \frac{y+22}{x+1} = \frac{-20+22}{0+1} = \frac{2}{1}  \\  \\ y+22=2(x+1)=2x+2 \\  \\ y=2x-20

To check if the circle and the line intersects, we substitute the equation of the line into the equation of the circle to see if we have a real solution.
i.e.
y^2+x^2=100 \\  \\ (2x-20)^2+x^2=100 \\  \\ 4x^2-80x+400+x^2=100 \\  \\ 5x^2-80x+300=0 \\  \\ x^2-16x+60=0 \\  \\ (x-6)(x-10)=0 \\  \\ x-6=0 \ or \ x-10=0 \\  \\ x=6 \ or \ x=10

When x = 6, y = 2(6) - 20 = 12 - 20 = -8 and when x = 10, y = 2(10) - 20 = 20 - 20 = 0

Therefore, the circle and the line intersect at the points (6, -8) and (10, 0).
8 0
4 years ago
Read 2 more answers
[11 + {- 18-9}]x2<br><br> I need help right now! please and thanks!
aalyn [17]

Answer:

−16x²

Step-by-step explanation:

Simplifying!

7 0
3 years ago
Read 2 more answers
Can someone please help me? <br><br> -r/3 ≤ 6
lozanna [386]
The answer would be r \geq 2
7 0
4 years ago
Help me please !
zhenek [66]
X=7 y =9 so answer is first one (7,9)
6 0
3 years ago
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