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Bingel [31]
2 years ago
5

How many three-letter "words" can Bob make using just these letters?

Mathematics
1 answer:
alekssr [168]2 years ago
4 0

Answer:

two

Step-by-step explanation:

the two "words" Bob can make using the three letters t, o, and a are;

oat and tao

hope this helps

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20) Jermaine's goal is to eat 25 grams of protein each day. If Jermair meets his goal, how many grams of protein will he have ea
Westkost [7]

Answer:750 grams

Step-by-step explanation:

25*30=250 grams after 30 days

3 0
2 years ago
Evaluate ∫ e3x cosh 2x dx A. 1/2e5x + 1/2ex + C B. 1/10e5x + 1/5 x + C C. 1/10e5x + 1/2ex + C D. 1/4e3x + 1/2 x + C
goldfiish [28.3K]

∫ e^(3x)*(cosh(2x)dx

= ∫ [e^(3x)*(e^(2x)+e^(-2x))/2]dx

= ∫ [(e^(5x)+e^x)/2]dx

=e^(5x)/10+e^x/2+C

=(1/10)(e^(5x)+5e^x)+C

6 0
3 years ago
What is the perimeter of the trapezoid with vertices Q(8, 8), R(14, 16), S(20, 16), and T(22, 8)? Round to the nearest hundredth
EleoNora [17]
Check the picture below.

so... you can pretty much see how long RS and QT are, you can just count the units off the grid.

now, let's find QR's length

\bf ~~~~~~~~~~~~\textit{distance between 2 points}\\\\
\begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
%  (a,b)
&Q&(~ 8 &,& 8~) 
%  (c,d)
&R&(~ 14 &,& 16~)
\end{array}~~ 
%  distance value
d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}
\\\\\\
QR=\sqrt{(14-8)^2+(16-8)^2}\implies QR=\sqrt{6^2+8^2}
\\\\\\
QR=\sqrt{36+64}\implies QR=\sqrt{100}\implies QR=10

and let's also find the length for ST

\bf ~~~~~~~~~~~~\textit{distance between 2 points}\\\\
\begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
%  (a,b)
&S&(~ 20 &,& 16~) 
%  (c,d)
&T&(~ 22 &,& 8~)
\end{array}~ 
d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}
\\\\\\
ST=\sqrt{(22-20)^2+(8-16)^2}\implies ST=\sqrt{2^2+(-8)^2}
\\\\\\
ST=\sqrt{4+64}\implies ST=\sqrt{68}\implies ST=\sqrt{4\cdot 17}
\\\\\\
ST=\sqrt{2^2\cdot 17}\implies ST=2\sqrt{17}

so, add the lengths of all sides, and that's the perimeter of the trapezoid.

8 0
3 years ago
Read 2 more answers
I need help pls someone -
ivann1987 [24]

Answer:

Number above 42 : 14

Number beside 2 : 1

Number above 0: 12

Step-by-step explanation:

6 0
1 year ago
A test is worth 50 points. Multiple choice questions are worth 1 point and short answer questions are worth 3 points if the test
Fed [463]

Answer:

There are 5 multiple choice questions

Step-by-step explanation:

Let

m ----> the number of multiple choice  in a test

s ----> the number of short answer  in a test

we know that

The test has 20 questions

so

m+s=20 ----> equation A

A test is worth 50 points

so

(1)m+3(s)=50

m+3s=50 ----> equation B

Subtract equation A from equation B

m+3s=50\\-m-s=-20\\-------\\3s-s=50-20\\2s=30\\s=15

Find the value of m

m+s=20\\m+15=20\\m=5

therefore

There are 5 multiple choice questions

7 0
3 years ago
Read 2 more answers
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