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3 years ago

HELP QUICK!

Mathematics

1 answer:

lesantik [10]3 years ago

8 0

The answer should be x = -5 and y = -8
(-5, -8)

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Hope someone help.me

zvonat [6]

x = r sin θ cos Ф

x² = r² sin² θ cos² Ф

y = r sin θ sin Ф

y² = r² sin² θ sin² Ф

z = r cos θ

z² = r² cos² θ

x² + y² + z²

= r² sin² θ cos² Ф + r² sin² θ sin² Ф + r² cos² θ

= r² sin² θ (cos² Ф + sin² Ф) + r² cos² θ

= r² sin² θ + r² cos² θ

= r² (sin² θ + cos² θ)

= r² √

7 0

3 years ago

Bradly completed 0.8 of his homework and Max completed 8% of his homework. Who completed more of their homework? How do you know

Helga [31]

Answer:

Bradly finished more

Step-by-step explanation:

0.8 is equal to 8/10, which is equal to 80/100, which is equal to 80%, whereas Max is 8%. 80 > 8.

4 0

3 years ago

Read 2 more answers

The difference in the measures of two complementary angles is 12 degrees. find the measure of the angles?

8090 [49]

If two angles are complementary, the sum of their measures is 90 degrees. Call one of the angles x. This means that its complement is 90 - x degrees. But the difference in their measures is 12 degrees.

6 0

3 years ago

Read 2 more answers

a boat cost $12050 and decreases in value by 12% per year. how much will the boat be worth after 9 years

sweet [91]

Each year the boat is worth 100-12 = 88% ( or 0.88) of the year before

after 12 years the boat is worth 12050 * 0.88^9 = $3813.56

5 0

3 years ago

find a function whose second derivative is y''=12x-2 at each point (x,y) on its graph and y=-x+5 is tangent to the graph at the

pogonyaev

Start by integrating y'' twice to get function y(x).

$y' = \int (12x - 2) dx = 6x^2 -2x + c \\ \\ y = \int (6x^2 -2x+c )dx= 2x^3-x^2 +cx+d$

Next find value of coefficients 'c' and 'd' using the given tangent line
The slope of tangent line is equal to y' when x=1.

$6x^2 -2x+c = -1, x = 1 \\ \\ 6-2+c = -1 \\ \\ c = -5$

The tangent line intersects the curve y(x) when x = 1.
If x = 1, then y = 4 (From y =-x+5)

$y = 2x^3 -x^2-5x +d , x = 1, y = 4 \\ \\ 2-1-5+d = 4 \\ \\ d = 8$

Final Answer:
$y = 2x^3 -x^2 -5x+8$

3 0

3 years ago