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luda_lava [24]
3 years ago
15

Solve the system using substitution.

Mathematics
2 answers:
Galina-37 [17]3 years ago
8 0

Answer:

no solutions

Step-by-step explanation:

if y=2x-5

and y=2x+7

2x-5=2x+7

-5 is not equal to 7

aleksklad [387]3 years ago
8 0

Answer:

no solution.

Explaination:

solve for the very first variable in your equation and then you would substitute the result into the other equation. by doing so, you should get no solution.

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A cubic centimeter can be expressed as<br> a.cm3 or cc<br> b. ccm<br> c. ccm3<br> or d.ct
Dima020 [189]
When multipled

cm^1 x cm^1 x cm^1 = cm^3 or cc for cubic centimeters the answer is A.
4 0
3 years ago
Read 2 more answers
Find the HCF and LCM of 306 and 54. Verify that HCF × LCM = Product of the two numbers.
Gala2k [10]
306=2*153=2*3*51=2*3*3*17
54=2*27=2*3*9=2*3*3*3,
so 306= 2*3*3*17, and 54 = 2*3*3*3
GCF we are looking for all factors that belong to both of these numbers, that are common for both numbers.
 306= 2*3*3*17, 
 54 = 2*3*3*3
GCF = 2*3*3

LCM should include all factors that belong as first as second numbers, and we take prime factor from the number that has maximum repetition of it
306 = 2*3*3*17
54=2*3*3*3
We can see 2 - one time, 3 - 3 times , and 17 - one time
LCM =2*3*3*3*17

Product of two numbers : 306*54=(2*3*3*17) * (2*3*3*3)= 2²*2⁵*17
HCF*LCM=(2*3*3)*(2*3*3*3*17)=2²*3⁵*17
So we can see that
 Product of two numbers = HCF*LCM=2²*3⁵*17

If you need you can calculate
 306= 2*3*3*17, 
 54 = 2*3*3*3
GCF = 2*3*3=18
LCM =2*3*3*3*17=918
GCF*LCM=18*918=16524
Product of 306*54= 16524

 






7 0
3 years ago
For the following geometric sequence, find the recursive formula.
igor_vitrenko [27]

Answer:

a_{n}=-\frac{1}{4}(a_{n-1})

Step-by-step explanation:

To find recursive formula in a geometric sequence, you need to first find the common ratio, 'r', between the numbers in the given data set.  From the data set given, it appears that the previous number is multiplied by -\frac{1}{4} so, r = -\frac{1}{4}.

Recursive formula involves two other variables:

a_{n}= the n^{th} term in the sequence

a_{n-1}=the term before the n^{th} term

So, the final formula is:  a_{n}=-\frac{1}{4}(a_{n-1})

4 0
3 years ago
PLEASE HELP! Work must be shown for this problem! The figure shown below is a rhombus
nata0808 [166]

Answer:

∠NXO = 90° because the diagonals of a rhombus are perpendicular. Because the sum of angles in a triangle is 180°, 90 + 29 + ∠7 = 180 which means ∠7 = 61°.

3 0
4 years ago
Does this equation have no solution or is it an identity?
Ksju [112]
Infinitely many solutions
4 0
3 years ago
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