Chardonnay Felix

2020-10-25

Solve the system of equations ${x}_{1}-3{x}_{2}+4{x}_{3}=-4$

$3{x}_{1}-7{x}_{2}+7x3=-8$

$-4{x}_{1}+6{x}_{2}-{x}_{3}=7$

cyhuddwyr9

Skilled2020-10-26Added 90 answers

Given:

Step 1

Find the value of

=1(7-42)+3(-3+28)+4(18-28)

=-35+75-40

=0

Step 3

=-4(7-42)+3(8-49)+(-48+49)

=140-123

according to cramers rule if value of is zero and if any one of

therefore the given system of linear equations has no solution

Find the volume V of the described solid S

A cap of a sphere with radius r and height h.

V=??

Whether each of these functions is a bijection from R to R.

a) $f(x)=-3x+4$

b) $f\left(x\right)=-3{x}^{2}+7$

c) $f(x)=\frac{x+1}{x+2}$

?

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State which of the following are linear functions?

a.$f(x)=3$

b.$g(x)=5-2x$

c.$h\left(x\right)=\frac{2}{x}+3$

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A square is also a

A)Rhombus;

B)Parallelogram;

C)Kite;

D)none of theseWhat is the order of the numbers from least to greatest.

$A=1.5\times {10}^{3}$,

$B=1.4\times {10}^{-1}$,

$C=2\times {10}^{3}$,

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Solve for y. 2y - 3 = 9

A)5;

B)4;

C)6;

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Write 18 thousand in scientific notation.