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3 years ago

Someone please help with all ASAP

Mathematics

1 answer:

LenaWriter [7]3 years ago

7 0

<1 = 57 <2=57 for a
<1=119 <2=119 for b
angles 1 6 9 14 3 8 11 and 16 equal 53 for c
angles 2 5 10 13 4 7 12 15 equal 127 for c
angles 9 11 12 equal 90 for d
angles 10 13 8 6 are 51 for d
angles 5 4 and 7 equal 39 for d
angles 2 and 3 equal 141

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Solve the equation. 8(x + 6) = 43 What is the value of x?

Wewaii [24]

Answer:

Exact form

5/8

Decimal form

0.625

Step-by-step explanation:

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3 years ago

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How many real solutions if any, does 2x^2-3x+8=0

fenix001 [56]

Answer:

The quadratic equation $2\, x^{2} - 3\, x + 8 = 0$ has no real solution.

Step-by-step explanation:

Rewrite the quadratic equation $2\, x^{2} - 3\, x + 8 = 0$ in the standard form $a\, x^{2} + b\, x + c = 0$ :

$2\, x^{2} + (-3)\, x + 8 = 0$ , for which:

$a = 2$ .
$b = (-3)$ .
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The quadratic discriminant of $a\, x^{2} + b\, x + c = 0$ is $(b^{2} - 4\, a\, c)$ . The quadratic discriminant of $2\, x^{2} + (-3)\, x + 8 = 0$ would be:

$\begin{aligned}& b^{2} - 4\, a\, c \\ =\; & (-3)^{2} - 4 \times 2 \times 8 \\ =\; & (-55)\end{aligned}$ .

Since the quadratic discriminant of this equation is negative, this quadratic equation has no real solution.

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2 years ago

HELP ASAP 50 POINTS! What is the slope and y intercept of the equation of the graph?

zlopas [31]

Fine two pints that cross the x and Y axis to use to find the slope.

Slope is the change in Y over the change in x.

(-2,0) (0,3)

Slope = 3-0 / 0- -2 = 3/2

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lana66690 [7]

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3 years ago

(Two office buildings are 51 m apart. The height of the taller building is 207 m. The angle of depression from the top of the ta

Sholpan [36]

See the attached figure to better understand the problem

we know that

in the triangle ABC
tan 15=AC/BC--------> AC=BC*tan 15
BC=51 m
AC=51*tan 15------> AC=13.67 m

the height of the shorter building=207-AC----> 207-13.67----> 193.33 m
the height of the shorter building=193 m

the answer Part a) is
the height of the shorter building is 193 m

Part b) how does the angle of depression from the top of the taller building relate to the angle of elevation from the top of the shorter building

we know that

the angle of depression is equals to the angle of elevation
so

the answers are
A:They are congruent
D:They are alternate interior angles

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3 years ago