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3 years ago

Help me please (no links plz)

Mathematics

1 answer:

Irina18 [472]3 years ago

4 0

9514 1404 393

Answer:

vertex: S
sides: ST and SR

Step-by-step explanation:

The vertex is the point the rays have in common. The side rays are named by naming the vertex first, then a point on the ray.

The rays come together at point S. The name of the vertex point is S.

The sides of the angle are rays ST and SR.

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Is it possible to make a triangle out of 10 cm 9cm 9cm

My name is Ann [436]

Answer:

Yes

Step-by-step explanation:

a+b=c ,a could be 9+9 which equals 18 which is greater than 10,

4 0

3 years ago

Pls help me with this multiple choice !

lana66690 [7]

Answer:

Step-by-step explanation:

$\sin(60) = \frac{6 \sqrt{3} }{x} \\ x = \frac{6 \sqrt{3} }{ \sin(60) } = 12 \\ \tan(60) = \frac{6 \sqrt{3} }{y} \\ y = \frac{6 \sqrt{3} }{ \tan(60) } = 6$

8 0

3 years ago

As an oak tree grows taller, it also grows wider. In other

Blizzard [7]

The volume of wood in the tree's trunk as it grows is $16\pi r^3$

The capacity of a cylinder, which determines how much material it can carry, is determined by the cylinder's volume. There is a formula for the volume of a cylinder that is used in geometry to determine how much of any quantity, whether liquid or solid, may be immersed in it uniformly. A cylinder is a three-dimensional structure having two parallel, identical bases that are congruent.

Thus, the volume (V) of a right circular cylinder, using the above formula, is, $V = \pi r^2h$ , where

'r' is the radius of the base (circle) of the cylinder

'h' is the height of the cylinder

Given:

Height(h) = 8 x diameter = 16 x radius (r) (diameter = 2 x radius )

∴ h = 16r.

V= $\pi r^2h$

Substituting h = 16r in the volume formula we get

V = $\pi r^2(16r)$ = $16\pi r^3$

Thus the volume of wood in the tree's trunk as it grows is $16\pi r^3$ .

Learn more about volume of a cylinder here :

brainly.com/question/16134180

#SPJ1

6 0

2 years ago

What is the effect on the graph of f(x) if it is changed to f(x) + 2 and f(x + 2)?

liraira [26]

Answer:

For f(x)+2, it goes along the y axis, 2 units.

For f(x+2), it goes along the x axis, -2 untis.

Step-by-step explanation:

6 0

3 years ago

natima [27]

Answer:

See explanation

Step-by-step explanation:

Let x be the number of spade shovels, y -the number of flat shovels and z - the number of square showels sold that day.

The store keeps an inventory of 80 shovels, then

x+y+z=80

The store always buy twice as many spade shovels as square, so

x=2z

The total cost of all shovels is

16x+9.60y+12.80z=1,072

a) The system of three equations is

$\left\{\begin{array}{l}x+y+z=80\\ \\x=2z\\ \\16x+9.60y+12.80z=1,072\end{array}\right.$

b) In matrix form this is

$\left(\begin{array}{ccc}1&1&1\\ 1&0&-2\\ 16&9.60&12.80\end{array}\right)\cdot \left(\begin{array}{c}x\\y\\z\end{array}\right)=\left(\begin{array}{c}80\\0\\1,072\end{array}\right)$

c) The determinant is

$\left\|\begin{array}{ccc}1&1&1\\ 1&0&-2\\ 16&9.60&12.80\end{array}\right\|=0-32+9.60-0+19.20-12.80=-16$

d) Find three determinants:

$\left\|\begin{array}{ccc}80&1&1\\ 0&0&-2\\ 1,072&9.60&12.80\end{array}\right\|=0-2,144+0-0+1,536-0=-608$

$\left\|\begin{array}{ccc}1&80&1\\ 1&0&-2\\ 16&1,072&12.80\end{array}\right\|=0-2,560+1,072-0+2,144-1,024=-368$

$\left\|\begin{array}{ccc}1&1&80\\ 1&0&0\\ 16&9.60&1,072\end{array}\right\|=0+0+768-0-0-1,072=-304$

So,

$x=\dfrac{-608}{-16}=38\\ \\y=\dfrac{-368}{-16}=23\\ \\z=\dfrac{-304}{-16}=19$

e) If the store doubled all prices and inventory, then the new matrix is

$\left(\begin{array}{ccc}1&1&1\\ 1&0&-2\\ 32&19.20&25.60\end{array}\right)\cdot \left(\begin{array}{c}x\\y\\z\end{array}\right)=\left(\begin{array}{c}160\\0\\2,144\end{array}\right)$

7 0

3 years ago