3 years ago

Which value is needed to create a perfect square trinomial from the expression x^2+8x+___?

1 answer:

3 0

${( \frac{b}{2}) }^{2} \\ ( { \frac{8}{2} )}^{2} \\ ( {4})^{2} \\ 16$

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Alik [6]

24 - (2 x 8)
24 - 16 = 8

7 0

2 years ago

Leto [7]

<h2>Number of bacteria after 6 days is 2313</h2>

Step-by-step explanation:

Population after n days is given by

$P_n=P_0(1+r)^n$

Initial population, P₀ = 1000

Increase rate, r = 15 % = 0.15

Number of days, n = 6

Substituting

$P_n=P_0(1+r)^n\\\\P_6=1000(1+0.15)^6\\\\P_6=1000(1.15)^6\\\\P_6=1000\times 2.313\\\\P_6=2313$

Number of bacteria after 6 days = 2313

7 0

3 years ago

Nadusha1986 [10]

0.75x-18.5=0.65x
0.75x-0.65x=18.5
0.1x=18.5
x=18.5/0.1=185

Answer: x=185

To checkt:
0.75(185)-18.5=138.75-18.5=120.25
0.65(185)=120.25

4 0

3 years ago

miv72 [106K]

B) the side opposite angle B is the longest

7 0

2 years ago

tester [92]

Answer:

$\frac{3x}{4}$

Step-by-step explanation:

<em>Nothing can be done with the equation because there is no quotient. </em>

If there was, would be able to solve for x.

6 0

3 years ago