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lana66690 [7]
3 years ago
8

Check my work! (blue is my choice) | | | v

Mathematics
2 answers:
spayn [35]3 years ago
8 0

Answer:

That is correct.

Step-by-step explanation:

Hope this helps! :)

wariber [46]3 years ago
4 0
This is correct! Good job :)
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Can u guys help me please
vesna_86 [32]
1.) 25%
2.) 75%
3.) 25
5 0
3 years ago
Determine which of the following formulas hold for all invertible n×n matrices A and B.
garik1379 [7]

Answer:

1 hold

2 hold

3 does not hold

4 hold

5 hold

6 hold

7 does not hold

8 does not hold

9 Does not hold

10 Hold

Step-by-step explanation:

The detailed step by step verification is as shown in the attachment

4 0
4 years ago
=
svet-max [94.6K]

Answer:

The polygon has 9 sides

Step-by-step explanation:

we know that

A regular polygon has equal length sides and equal interior angles

step 1

Find the measure of the interior angle

Remember that

The interior angle plus the exterior angle must be equal to 180 degrees (form a linear pair)

Let

x ----> the measure of each interior angle in the regular polygon

so

x+40^o=180^o

solve for x

x=180^o-40^o=140^o

step 2

Find the number of sides of the regular polygon

we know that

The measure of each interior angle in a regular polygon is given by the formula

x=\frac{(n-2)180^o}{n}

where

n is the number of sides of the polygon

substitute the given values

140^o=\frac{(n-2)180^o}{n}

solve for n

140n=180n-360\\180n-140n=360\\40n=360\\n=9\ sides

therefore

The polygon has 9 sides

8 0
3 years ago
Calculate the Highest common factor of 130,260,390​
qwelly [4]

the Highest common factor of 130,260,390 = 130

130 = 2⋅5⋅13

260 = 2⋅2⋅5⋅13

390 = 2⋅3⋅5⋅13

Common multipliers (130; 260; 390): 2, 5, 13

Now to find the highest Common factor you need to multiply the common factors

Answer: (130 ; 260 ; 390) = 2 ∙ 5 ∙ 13 = 130

4 0
3 years ago
Read 2 more answers
An object's velocity can be described by its acceleration and direction. <br> true or false
irina [24]
False.
because acceleration and direction are different units. an objects velocity can be described by its direction but not by its acceleration.
8 0
3 years ago
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