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tankabanditka [31]
3 years ago
11

2x

Mathematics
1 answer:
laiz [17]3 years ago
3 0

Answer:

7

Step-by-step explanation:

2x² - 28x + 98 = 0

x² - 14x + 49 = 0

(x - 7)² = 0

x = 7

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inysia [295]
Sur it's a function because for each x value corresponds one and only one y value.

Another easy way to determine if y is a function is to apply the vertical test:

If you draw a vertical line and this lines intersects the graph in one point, then y is a function

8 0
3 years ago
Find the length of side b below using Law of Sines. Give the exact value as an expression and an approximation to the nearest te
denis-greek [22]

Answer:

b ≈ 7.8

Step-by-step explanation:

using the law of sines

∠ A = 180° - 105° - 40° = 180° - 145° = 35° , then

\frac{b}{sin40} = \frac{7}{sin35} ( cross- multiply )

b × sin35° = 7 × sin40° ( divide both sides by sin35° )

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2 years ago
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Bas_tet [7]
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6 0
2 years ago
Write the slope intercept ​
mrs_skeptik [129]

Answer:

b = 4,

m = 4/3,

y = 4x/3 + 4

Step-by-step explanation:

We can see the line intercepts the x-axis in (-3,0) and the y-axis in (0,4). So, using the fact that the line equation in the slope-intercept form is:

y = mx+b

We can substitute the points we know:

→ (0,4):

y = mx+b\\\\4 = m\cdot0+b\\\\4 = 0+b\\\\\boxed{b=4}

→ (-3,0):

y = mx+b\\\\0 = -3m + 4\\\\3m = 4\\\\\boxed{m = \dfrac{4}{3}}

So, the line equation in form requested is:

\boxed{y=\dfrac{4}{3}x+4}

7 0
3 years ago
Can you please help me ​
sergiy2304 [10]

Answer:

  x = 23

Step-by-step explanation:

The marked angles are "corresponding," hence congruent:

  8x -27 = 7x -4

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5 0
3 years ago
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