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3 years ago

Help me with math please i don't understand anything im stupid

Mathematics

1 answer:

Jet001 [13]3 years ago

6 0

4. one solution is (1, 3)

5. (1, -1)

7. -5 = x + 3
x = -5 - 3
x = -8

8. z - 4 = -8
z = -8 + 4
z = -4

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Simplify 11(2x + 3).

alex41 [277]

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7 0

2 years ago

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here are the first five terms of a quadratic sequence (1 8, 21, 40, 65). the nth term of this sequence can be written in the for

bazaltina [42]

Answer:

a=3 and b=-2

Step-by-step explanation:

We are given that five terms of a quadratic sequence are

1 8, 21, 40, 65.

The nth term of this sequence

= $an^2+bn$

We have to find the value of a and b where a and b are integers.

For n=1

$a+b=1$ ......(1)

For n=2

$(2)^2a+2b=8$

$4a+2b=8$

$2a+b=4$ .....(2)

Subtract equation (1) from (2) we get

$2a-a=4-1=3$

$a=3$

Using the value of a=3 in equation (1)

$3+b=1$

$b=1-3=-2$

Hence, the value of

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5 0

2 years ago

25 - so<br> Is the following number rational or irrational?

svlad2 [7]

Answer:

25 is a rational number

Step-by-step explanation:

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This is possible for 25, 25 in p/q form =

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If my answer helped, kindly makr me as the brainliest!!

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Solve for x..................

Yuri [45]

Square both sides to get the binomial out of the square root:
(√(2x + 8))² = (2)²
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2x = 4 - 8
2x = - 4

Divide both sides by 2 to isolate the variable X:
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Your answer is option C.

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Answer:

Step-by-step explanation:

Hm?

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