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sweet [91]
3 years ago
15

I am just completely lost and am unsure of how to approach this problem.

Mathematics
1 answer:
Anastasy [175]3 years ago
5 0

Answer:

68°

Step-by-step explanation:

As BA⊥BD, so ∠ABD = 90°

also, ∠ABD = ∠CBD + ∠ABC

⇒ 90° = 4x + 52° + 8x - 10°

⇒  12x = 48°

⇒  x = 4°

now,

∠CBD = 4x + 52°

          = 4(4°) + 52°

          = 68°

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A new car has a sticker price of $25,550, while the invoice price paid on it was
Hoochie [10]

Answer:

21.7%

Step-by-step explanation:

(25,550-19,990) / 25,550 = 5,560/25,550 = 0.217612524462 or  21.7% increase

8 0
3 years ago
Read 2 more answers
Graph the function y = 4 . Then use the graph to find the missing x- or y-coordinates for the function to the nearest hundredth.
Elodia [21]

Given equation is y=4.

Question says to graph the given equation y=4 then use the graph to find the missing x- or y-coordinates for the function to the nearest hundredth.

Equation y=4 has no "x" so that means line y=4 will be a horizontal line which passes through 4 on y-axis.

Since it is parallel to x-axis so that means there is no x-intercept.

y-intercept is (0,4) as the line crosses at 4 on y-axis.


5 0
3 years ago
What is the vertex of y=-2x^2+10x+1 and is it a minimum or maximum
Reika [66]

Answer:

Step-by-step explanation:

it is maximum.

when leading coefficient of x² is negative,

It is downward parabola.

or

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=-2(x²-5x+(-5/2)²-(-5/2)²)+1

=-2(x-5/2)²+2×25/4+1

=-2(x-5/2)²+25/2+1

=-2(x-5/2)²+27/2

maximum value of y is 27/2 and is attained at x=5/2

vertex is (5/2,27/2)

7 0
4 years ago
Between what two integers powers of 2 does 2 (square root of 5) lie?
Hatshy [7]
Between 2² and 3².

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3 0
3 years ago
Is this a function ?
Oksanka [162]
If the no x-values repeat, yes it is a function so far I see it is a function.
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