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3 years ago

What is the perimeter of △ABC to the nearest whole number?

Mathematics

1 answer:

cricket20 [7]3 years ago

4 0

Answer: B

Perimeter= 92.52

x=28.09

y=39.43

Step-by-step explanation:

sin39/25=sin44/x

x=28.09

sin97/y=sin39/25

y=39.43

39.43+28.09+25= 92.52

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Which are true regarding the statement “A quadrilateral having exactly one pair of parallel opposite sides USA trapezoid”?Check

Mashcka [7]

Answer:

A). It is a conditional statement that can be written as “If a quadrilateral has exactly one pair of parallel opposite sides, then it is a trapezoid."

B). The hypothesis is: a quadrilateral having exactly one pair of parallel opposite sides.

E). The conclusion is: it is a trapezoid.

Step-by-step explanation:

I just did the assignment on Edge. It's 100% correct!! Hope this helps!!

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4 years ago

A 5 gallon can of motor oil costs $28.00. What is the cost of 1 quart of the oil?

Masteriza [31]

There are 4 quarts in a gallon. 4 times 5 is 20 and 28 divided by 20 is 1.4. So the cost of one quart of the oil is $1.40

8 0

4 years ago

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Use the Green's Theorem to calculate the work done by the field [ F (x, y) = -3y^5 i + 5y^2x^3 j ] to move a particle along the

lianna [129]

$\displaystyle\int_C\mathbf F\cdot\mathrm d\mathbf r=\iint_R\left(\frac{\partial(5y^2x^3)}{\partial x}-\frac{\partial(-3y^5)}{\partial y}\right)\,\mathrm dx\,\mathrm dy$

$\dfrac{\partial(5y^2x^3)}{\partial x}=15y^2x^2$
$\dfrac{\partial(-3y^5)}{\partial y}=-15y^2$

$=\displaystyle\int_{x=-2}^{x=2}\int_{y=-\sqrt{4-x^2}}^{y=\sqrt{4-x^2}}15y^2(x^2+1)\,\mathrm dy\,\mathrm dx$

Converting to polar coordinates, the integral is equivalent to

$=\displaystyle\int_{\theta=0}^{\theta=2\pi}\int_{r=0}^{r=2}15r^3\sin^2\theta(r^2\cos^2\theta+1)\,\mathrm dr\,\mathrm d\theta$
$=\displaystyle15\int_0^{2\pi}\int_0^2\left(\frac{r^5}4\sin^22\theta+r^3\sin^2\theta\right)\,\mathrm dr\,\mathrm d\theta$
$=\displaystyle\frac{15}4\left(\int_0^2r^5\,\mathrm dr\right)\left(\int_0^{2\pi}\sin^22\theta\,\mathrm d\theta\right)+15\left(\int_0^2r^3\,\mathrm dr\right)\left(\int_0^{2\pi}\sin^2\theta\,\mathrm d\theta\right)$
$=100\pi$

6 0

3 years ago

Is -9.5 greater than -9.05

Alexxandr [17]

Answer:

-9.5 would be less than -9.05

3 0

3 years ago

"Calculate cos theta to two decimal places. (Use the pic attached inside!!!)

jolli1 [7]

Let
T = theta
Use the Law of Cosines to get
c^2 = a^2+b^2 - 2ab*cos(T)
7^2 = 10^2+8^2 - 2*10*8*cos(T)
49 = 164 - 160*cos(T)
-160cos(T) = 49-164
-160cos(T) = -115
cos(T) = -115/(-160)
cos(T) = 23/32
cos(T) = 0.71875 which rounds to 0.72

The final answer is C) 0.72

5 0

4 years ago

Read 2 more answers