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3 years ago

105,000,000 written in scientific notation would be:

Mathematics

1 answer:

Natali5045456 [20]3 years ago

5 0

Answer:

1.05 x 10 to the 8th power

Step-by-step explanation:

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Clevon forms a triangle with three straws measuring 20, 25, and 18 inches. To the nearest whole

Ne4ueva [31]

Answer:

Step-by-step explanation:

Let's label this triangle as triangle ABC. Side AB is 18, side BC is 20 and side CA is 25 and the angle we are looking for is angle C. Use the Law of Cosines to find the missing angle. You have to use the Law of Cosines because in order to use the Law of Sines you have to have an angle given and we don't so we have no other options. In our case,

$c^2=a^2+b^2-2abcosC$ which for us looks like this:

$18^2=20^2+25^2-2(20)(25)cosC$ and

$324=400+625-1000cosC$ and

$324=1025-1000cosC$ and

$-701=-1000cosC$ and

$.701=cosC$

Use the 2nd button and the cos button to find the missing angle.

Angle C = 45.4 which is, rounded to the nearest degree, 45°

8 0

3 years ago

A garden is shaped like a rectangle whose perimeter is 150 ft. The length is 2 times as long as the width. Find the length and t

vlabodo [156]

Answer:

Step-by-step explanation:

L=2W

P=2(L+W), using L=2W this becomes

P=2(2W+W)

P=2(3W)

P=6W, given P=150

6W=150

W=25, and since L=2W

L=50 so

L=50ft and W=25ft

6 0

3 years ago

Find f · dr c for the given f and

ruslelena [56]

Parameterize the path $\mathcal C$ by

$\mathbf r(t)=x(t)\,\mathbf i+y(t)\,\mathbf j$

with

$x(t)=3\cos t$
$y(t)=3\sin t$

and $0\le t\le\pi$ . Then

$\displaystyle\int_{\mathcal C}\mathbf f(x,y)\cdot\mathrm d\mathbf r=\int_{t=0}^{t=\pi}\mathbf f(x(t),y(t))\cdot\dfrac{\mathrm d\mathbf r}{\mathrm dt}\,\mathrm dt$
$=\displaystyle\int_0^\pi(9\cos^2t\,\mathbf i+9\sin^2t\,\mathbf j)\cdot(-3\sin t\,\mathbf i+3\cos t\,\mathbf j)\,\mathrm dt$
$=27\displaystyle\int_0^\pi(\cos t\sin^2t-\sin t\cos^2t)\,\mathrm dt=-18$

5 0

3 years ago

There are 10 milligrams of sugar in a store bought juice. How many centigrams of sugar does the juice contain? A) 1 B)10 C)100 D

EastWind [94]

B is the answer. Hope this helps!

4 0

3 years ago

Read 2 more answers

What is the value of a?<br><br> a =

Fiesta28 [93]

Answer:

a = 14

Step-by-step explanation:

Because angles x and w are equal, sides 14 and a are also equal.

We can immediately conclude that a = 14.

4 0

3 years ago