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Verizon [17]
3 years ago
14

Rewrite the expression as a single fraction 3/8 + 1/8

Mathematics
1 answer:
mihalych1998 [28]3 years ago
5 0

Answer:

Step-by-step explanation:

3/8+ 1/8 = 4/8

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What is 2/3 of 90 degrees equal
disa [49]
2/3 times 90/1 equals 180/3, which is 60 degrees.
5 0
3 years ago
Find the? inverse, if it? exists, for the given matrix.<br><br> [4 3]<br><br> [3 6]
True [87]

Answer:

Therefore, the inverse of given matrix is

=\begin{pmatrix}\frac{2}{5}&-\frac{1}{5}\\ -\frac{1}{5}&\frac{4}{15}\end{pmatrix}

Step-by-step explanation:

The inverse of a square matrix A is A^{-1} such that

A A^{-1}=I where I is the identity matrix.

Consider, A = \left[\begin{array}{ccc}4&3\\3&6\end{array}\right]

\mathrm{Matrix\:can\:only\:be\:inverted\:if\:it\:is\:non-singular,\:that\:is:}

\det \begin{pmatrix}4&3 \\3&6\end{pmatrix}\ne 0

\mathrm{Find\:2x2\:matrix\:inverse\:according\:to\:the\:formula}:\quad \begin{pmatrix}a\:&\:b\:\\ c\:&\:d\:\end{pmatrix}^{-1}=\frac{1}{\det \begin{pmatrix}a\:&\:b\:\\ c\:&\:d\:\end{pmatrix}}\begin{pmatrix}d\:&\:-b\:\\ -c\:&\:a\:\end{pmatrix}

=\frac{1}{\det \begin{pmatrix}4&3\\ 3&6\end{pmatrix}}\begin{pmatrix}6&-3\\ -3&4\end{pmatrix}

\mathrm{Find\:the\:matrix\:determinant\:according\:to\:formula}:\quad \det \begin{pmatrix}a\:&\:b\:\\ c\:&\:d\:\end{pmatrix}\:=\:ad-bc

4\cdot \:6-3\cdot \:3=15

=\frac{1}{15}\begin{pmatrix}6&-3\\ -3&4\end{pmatrix}

=\begin{pmatrix}\frac{2}{5}&-\frac{1}{5}\\ -\frac{1}{5}&\frac{4}{15}\end{pmatrix}

Therefore, the inverse of given matrix is

=\begin{pmatrix}\frac{2}{5}&-\frac{1}{5}\\ -\frac{1}{5}&\frac{4}{15}\end{pmatrix}

4 0
4 years ago
ILL GIVE YOU BRAINLIST !!!
Alecsey [184]

Answer:

-\frac{15}{16}

Step-by-step explanation:

\frac{1}{4} ^{2}= \frac{1}{16}

2*(pq)= 2(\frac{1}{6})= \frac{1}{3}

-3q^{2}= -3(\frac{4}{9} )= -\frac{4}{3}

\frac{1}{16} +\frac{1}{3}-\frac{4}{3}=

\frac{1}{16} -1=

-\frac{15}{16}

4 0
3 years ago
An archaeologist earns $9147 monthly. Determine the amount he is paid annually.
Mnenie [13.5K]
$9147 x 12 =190,764
12 is how many months there is in a year
4 0
3 years ago
B) g(-1)
Dahasolnce [82]

Answer:

just sub in the numbers into the equation to replace the X ..

example for

a) h(7) : 44

Step-by-step explanation:

h(7) : x^2 -5

sub in 7 into the equation to replace X

so you get

(7)^2 - 5

49-5

44

4 0
3 years ago
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