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3 years ago

Explain, in words, how you can identify a perfect square trinomial whose leading coefficient is 1

1 answer:

4 0

When the leading coefficient is 1,
If the constant ( c term) is a perfect square and the b term is 2* the square root of the c term.
Ex.
x*2 + 10x + 25
2*5 = 10 5*5=25
Ex.
x^2 - 12x + 36
2 * -6 = -12 6*6=36

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How do you answer this 99-2*2+1

AleksandrR [38]

Answer:

99-4+1

99-5

94#

Step-by-step explanation:

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3 years ago

Aleks04 [339]

Answer: First I suggest that you write out the all the proportions which govern the 3 right triangles involved.

Once you do that you will find this one:

PQ/PS =PR/PQ

PR=PS+SR

Substitution will give you this quadratic:PQ2=PS2+PS*SR

144=PS2+7PS which has only one solution which make sense, namely 9

Then QS=sqrt(144-81)

Step-by-step explanation:

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2 years ago

Find the surface area of this triangular prism. Be sure to include the correct unit in your answer.

BartSMP [9]

Answer:

905 is the perimeter

and the triangular prism is 46

Step-by-step explanation:

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4 years ago

- 20 = 2(n − 3) Asswer ?

jonny [76]

Answer:

Step-by-step explanation:

-20=2(n-3)

-20=2*n-2*3

-20=2n-6

-20+6-2n

-14/2=n

-7=n

4 0

3 years ago

Read 2 more answers

Find the area of the rhombus

MAXImum [283]

<h3> Solution :-</h3>

Area of rhombus :-

$\bf \star \: \: \boxed{ \bf \dfrac{d_{1}d_{2}}{2} }$

$\sf \longrightarrow d_{1} = 4 \sqrt{3} + 4 \sqrt{3} = 8 \sqrt{3}$

$\sf \longrightarrow d_{2} = 4 + 4 = 8$

Area of rhombus :-

$: \implies \sf \dfrac{8 \sqrt{3} \times 8 }{2}$

$: \implies \sf 8 \sqrt{3} \times 4$

$: \implies \bf 32 \sqrt{3} \: {m}^{2}$

6 0

3 years ago