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3 years ago

-10(3.25c+5.5)-20 how do u do it

Mathematics

1 answer:

Law Incorporation [45]3 years ago

8 0

Answer:

distributive property

Step-by-step explanation:

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Add using a number line.

skad [1K]

Answer:

The answer is 20

Step-by-step explanation:

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4 years ago

A bracelet is made by stringing together four beads. Each bead is either red or green. How many different color patterns are

JulijaS [17]

Answer:

3 or 5, depends on the bracelet can be fully green or red. If you have to have both colours then it's 3.

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3 years ago

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Solve for x …………………………..

fredd [130]

ANSWER

x° + 74° + 90° = 180°(Angles in a triangle)

x° + 164° = 180°

x° + 164° - 164° = 180° - 164°

x° = 16°

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3 years ago

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What is the surface area of this shape? 5 cm 4 cm 2 cm 6 cm 3 cm

enot [183]

Answer:

Where is the shape or we have to draw accordingly ??

Step-by-step explanation:

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3 years ago

Given A- 2 2 1 3 what is A-¹?

devlian [24]

The inverse of matrix A = $\left[\begin{array}{cc}2&2&1&3\\\end{array}\right]$ is $A^{-1} = \frac{1}{4}$ $\left|\begin{array}{cc}3&-2&-1&2\\\end{array}\right|$

The given matrix is A = $\left[\begin{array}{cc}2&2&1&3\\\end{array}\right]$

The inverse of a matrix is given by

$A^{-1} = \frac{1}{|A|} adjA$ ...(1)

Now, determinant of matrix A is

|A| = $\left|\begin{array}{cc}2&2&1&3\\\end{array}\right|$

= (3)(2) - (2)(1)

= 6 - 2

= 4

Now, adjoint A will be

$A_{11}$ = 3

$A_{12}$ = -1

$A_{21}$ = -2

$A_{22}$ = 2

AdjA = $\left|\begin{array}{cc}3&-2&-1&2\\\end{array}\right|$

Now, substituting the values of |A| and AdjA in equation (1), we get

$A^{-1} = \frac{1}{4}$ $\left|\begin{array}{cc}3&-2&-1&2\\\end{array}\right|$

Therefore, $A^{-1} = \frac{1}{4}$ $\left|\begin{array}{cc}3&-2&-1&2\\\end{array}\right|$

Know more about Inverse of Matrix: -brainly.com/question/12442362

#SPJ9

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1 year ago