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3 years ago

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A large glass marble made in West Virginia has a diameter of zuset meters. The state of West Virginia is about 4-5 meters la len

gun Wine's closest to how many large glass marbles it would take to measure the length of West Virginia?
A. 2×10^-10
B. 2×10^-9
C. 2×10^3
D. 2×10^7

1 answer:

Marizza181 [45]3 years ago

8 0

Uh B i think
‍♀️ jdjdjdj

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Answer:

x = 3.25; y = 5.5; angle measures are (cw from bottom left): 96, 84, 96

Step-by-step explanation:

The two angles above the horizontal line form a linear pair, so they are supplementary. Their measures add to 180 deg. That let's you find the value of x.

28x - 7 + 24x + 18 = 180

52x + 11 = 180

52x = 169

x = 169/52

x = 3.25

Now use the lower left angle and the upper right angle. They are vertical angles, so they are congruent. That allows you to solve for y.

12y + 30 = 24x + 18

We know that x = 3.25.

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I don't know what the problem is asking for since you don't show.

x = 3.25; y = 5.5; angle measures are (cw from bottom left): 96, 84, 96

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In this problem, we need to plug in the given x values for $f(x)=0$ and find a and b.

When we plug in 1, we get: $2 \times {1}^{4} - 5 \times {1}^{3} - 14 \times {1}^{2} + a \times 1 + b = 0$

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We got our first statement about the values of the variables. If we find one more we can find those 2 variables.

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Plug it in:
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Now we have our second one. We can combine them:
$a + b = 17 \\ 4a + b = 32$

I use elimination method which is easier here.

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