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3 years ago

Does anyone know how to do 16 a and b?!?!?! WILL GIVE BRAINLIEST!!! need this asap!!!!

Mathematics

2 answers:

valentina_108 [34]3 years ago

6 0

1 and 5 has the be it because of the average speed

gladu [14]3 years ago

5 0

Answer:

a - 25

b - 25 %

Step-by-step explanation:

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An angle is 26.2° more than its complementary angle what is the measure of each angle

Mila [183]

Answer:

58.1 and 31.9 degrees

Step-by-step explanation:

x + other angle = 90 because complementary angles add up to 90

x = the angle

x = 26.2 more than the other angle

subtract 26.2 from both sides

x - 26.2 = other angle

x + other angle = 90

plug x - 26.2 for other angle

x + (x-26.2) = 90

2x - 26.2 = 90

add 26.2 to both sides to isolate the variable and its coefficient

2x = 116.2

divide both sides by 2 to find x

x = 58.1

other angle = x - 26.2 = 31.9

7 0

2 years ago

Turning 2.45 into a percent

olya-2409 [2.1K]

As a percent is out of 100% or 1 (as a whole number), the best thing to do is multiply it by ten, until you get a whole number. As you cannot have a decimal in a percentage. 2.45x10= 24.5. This is still a decimal, so you need to multiply it be ten again, 24.5x10= 245. Therefore, 2.45 is a percent is 245%

8 0

3 years ago

Read 2 more answers

Evaluate the surface integral. s x ds, s is the part of the plane 18x + 9y + z = 18 that lies in the first octant.

IceJOKER [234]

In the first octant, the given plane forms a triangle with vertices corresponding to the plane's intercepts along each axis.

$(x,0,0)\implies 18x+9\cdot0+0=18\implies x=1$
$(0,y,0)\implies 18\cdot0+9y+0=18\implies y=2$
$(0,0,z)\implies 18\cdot0+9\cdot0+z=18\implies z=18$

Now that we know the vertices of the surface $\mathcal S$ , we can parameterize it by

$\mathbf s(u,v)=\langle(1-u)(1-v),2u(1-v),18v\rangle$

where $0\le u\le1$ and $0\le v\le1$ . The surface element is

$\mathrm dS=\|\mathbf s_u\times\mathbf s_v\|\,\mathrm du\,\mathrm dv=2\sqrt{406}(1-v)\,\mathrm du\,\mathrm dv$

With respect to our parameterization, we have $x(u,v)=(1-u)(1-v)$ , so the surface integral is

$\displaystyle\iint_{\mathcal S}x\,\mathrm dS=2\sqrt{406}\int_{u=0}^{u=1}\int_{v=0}^{v=1}(1-u)(1-v)^2\,\mathrm dv\,\mathrm du=\frac{\sqrt{406}}3$

5 0

3 years ago

Toch Guest

Korvikt [17]

What do you mean by saying “this leaf” and what is the difference between A and B or C and D answers

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3 years ago

Solve this equation: 110 = 9x + 5y Help please!!!❤️

Archy [21]

We can't find explicit values for $x$ and $y$ , since there is only one equation, but two variables.