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3 years ago

A plant grows 1.8 centimeters a month. There are 12 months in a year. How many centimeters will the plant grow in one year?

Mathematics

1 answer:

Flauer [41]3 years ago

7 0

Answer:

1.8 x 12 =21.6

it is true she is correct

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Sviatoslav solved the quadratic equation x^2-x-1=0 by completing the square. In the process, he came up with the equivalent equa

zimovet [89]

Answer:

$x=\frac{1+\sqrt5}{2}$ and $x=\frac{1-\sqrt5}{2}$

and b= $\frac{5}{4}$

Step-by-step explanation:

We are given that a quadratic equation

$x^2-x-1=0$

We have to solve the equation by completing square and find the value of b.

$(x)^2-2\times x\times \frac{1}{2}+(\frac{1}{2})^2-(\frac{1}{2})^2-1=0$

$(x-\frac{1}{2})^2-\frac{1}{4}-1=0$

$(x-\frac{1}{2})^2-\frac{1-4}{4}=0$

$(x-\frac{1}{2})-\frac{5}{4}=0$

$(x-\frac{1}{2})^2-(\frac{\sqrt5}{2})^2=0$

$(x-\frac{1}{2})^2=(\frac{\sqrt5}{2})^2$

$x-\frac{1}{2}=\frac{\sqrt5}{2}$ and $x-\frac{1}{2}=-\frac{\sqrt5}{2}$

$x=\frac{\sqrt5}{2}+\frac{1}{2}=\frac{1+\sqrt5}{2}$

And $x=\frac{1}{2}-\frac{\sqrt5}{2}=\frac{1-\sqrt5}{2}$

Therefore, $x=\frac{1+\sqrt5}{2}$ and $x=\frac{1-\sqrt5}{2}$

and b= $\frac{5}{4}$

6 0

3 years ago

Please help me with this i need help she is gonna call my mom again!!!

telo118 [61]

Answer:

1. 15

2. -23

3. -16

Step-by-step explanation:

1. Find h(-8)

h(t) = $\frac{5}{4}(4 - t)$

h(-8) = $\frac{5}{4}(4 -(-8))$

h(-8) = $\frac{5}{4}(4+8) =\frac{5}{4}(12)=5(3)=15$

2. What is the value of g(-3)

g(x) = 4(x - 5) + $x^{2}$

g(-3) = 4(-3 - 5) $-3^{2}$

g(-3) = 4(-8) + 9

g(-3) = -32 + 9

g(-3) = -23

3. Find f(10)

f(x) = 14 - 3x

f(10) = 14 - 3(10)

f(10) = 14 - 30

f(10) = -16

7 0

3 years ago

Read 2 more answers

Two fifth of a certain number is 30 what is the number?

vesna_86 [32]

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Beginning with an "If-then" statement ⇣

If 2/5 = 30 then 1/5 = 15

Now we have 1/5, let's make it 1 by multiplying x5.

15 x 5 = 75

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Good luck! :)

~pinetree

3 0

2 years ago

Almeida collects data on the ages of the students in her aerobics class and creates a dot plot to represent the ages.

vazorg [7]

I believe your question is incomplete.

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3 years ago

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Sixty-five ten thousandths

Vlada [557]

0.0065 is how you say sixty-five ten thousandths

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