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2 years ago

14

Need Help Plz!! For 10 points

2 answers:

igomit [66]2 years ago

7 0

Shape But if you're looking for a Pentagon

Tems11 [23]2 years ago

5 0

Shape B because a pentagon has 5 sides

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the volume of a rectangular prism is 504 in cube. If the area of the bask is 56 in cube, find its height.

mars1129 [50]

Answer: 9

Step-by-step explanation:

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2 years ago

X = 11 + 2 (______) <br>X = 1 + _________<br>X = ___________

Sloan [31]

Answer:

40

Step-by-step explanation:

I'm not sure about it

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2 years ago

Help factoring trinomial

ankoles [38]

need 2 numbers when added = 5 and when multiplied = -24

answer is D

-3+8 = 5

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3 years ago

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solve the given matrix equation for X. Simplify your answers as much as possible. (In the words of Albert Einstein, "Everything

vova2212 [387]

a.

$XA^{-1}=A^3$

$(XA^{-1})A=A^3A$

$X(A^{-1}A)=A^4$

$X=A^4$

b.

$AXB=(BA)^2$

$A^{-1}(AXB)B^{-1}=A^{-1}(BA)^2B^{-1}$

$(A^{-1}A)X(BB^{-1})=A^{-1}(BA)^2B^{-1}$

$X=A^{-1}(BA)^2B^{-1}$

c.

$(A^{-1}X)^{-1}=(AB^{-1})^{-1}(AB^2)$

$X^{-1}A=(BA^{-1})(AB^2)$

$X^{-1}A=B(A^{-1}A)B^2$

$X^{-1}A=B^3$

$(XX^{-1})A=XB^3$

$XB^3=A$

$X(B^3(B^3)^{-1})=A(B^3)^{-1}$

$X=A(B^3)^{-1}$

d. Not totally sure what the equation is supposed to be, but I guess it's

$ABXA^{-1}B^{-1}=A$

$ABX(BA)^{-1}=A$

$((AB)^{-1}(AB))X((BA)^{-1}(BA))=(AB)^{-1}A(BA)$

$X=(AB)^{-1}A(BA)$

$X=(B^{-1}A^{-1})A(BA)$

$X=B^{-1}(A^{-1}A)(BA)$

$X=(B^{-1}B)A$

$X=A$

7 0

3 years ago

1/2+1/8 in simplest form

Viktor [21]

1/4 • 4/4 = 4/8 + 1/8 = 5/8 the dot means to multiply

3 0

3 years ago

Read 2 more answers