1 year ago

Give the equation of a line that has

Mathematics

1 answer:

GenaCL600 [577]1 year ago

7 0

a. x=5

b. y=x

c. y=0

d. y=x-7

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The 10th term of an a.p is -27 and the 5th term is -12 .find the first term?

horsena [70]

Step-by-step explanation:

$a_{10} = - 27... (Given) \\\\\therefore a + 9d = - 27...... (1)\\\\a_{5} = - 12... (Given) \\\\\therefore a + 4d = - 12.......(2)\\\\$

Subtracting equation (2) from equation (1)

$a + 9d-( a + 4d )= - 27-(-12)\\\\\therefore a +9d - a-4d = - 27+12\\\\\therefore 5d = - 15\\\\\therefore d = \frac {- 15}{5}\\\\\huge \orange {\boxed {\therefore d = -3}} \\\\$

Substituting d = - 3 in equation (1), we find:

$a + 9\times (-3)= - 27\\\\\therefore a - 27 = - 27\\\\\therefore a = 27- 27\\\\\huge \red {\boxed {\therefore a = 0}}\\\\$

Hence, first term is zero.

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3 years ago

11. Circle all of the examples that are perfect square. (You must circle all correct responses to receive credit)

Law Incorporation [45]

Good evening ,

Answer:

Circle 0 , 4 , 16

Step-by-step explanation:

→ 0 = 0²

→ 4 = 2²

→ 16 = 4²

4 0

2 years ago

I need help ASAP pls

Vitek1552 [10]

1) 2/3x , 2t , -1/3x
.
2) 2/3(3m^4 + 6) - (m^4 - m)
{ 3 and 3 get cancelled }
= 2m^4 + 6 - m^4 + m
= m^4 + 6 + m
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Hope it helps! :)

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2 years ago

Jessica has a shelf that is 26 inches long. If she cuts off 12 3/8inches, what is the new length of the shelf?

densk [106]

21.5 inches long
12*3/8=4.5
26-4.5=
21.5 inches

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2 years ago

If the cost of 16 bar of chocolate costs $84. Find the cost of 28 bars of<br> chocolate.

BlackZzzverrR [31]

Answer:

16 bars=$84, meaning that one bar cost 5.25

28 bars=$147

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2 years ago