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goldenfox [79]
3 years ago
5

Springboard Geometry, Page 477 Question 2. Parts A + B, confused on the problem, an explanation would be helpful :D

Mathematics
1 answer:
noname [10]3 years ago
8 0

your photo is blur in my mobile can you sent me in other social media

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Justin is on a road trip. Over the past two days, he’s driven a total distance of 504 miles at an average speed of 56 miles/hour
irakobra [83]
Recall d  = rt, distance = rate * time.

now, he has a speed rate of 56 mph for a distance of 504

\bf d=rt\implies 504=56t\implies \cfrac{504}{56}=t\implies \stackrel{hours}{9}=t

so, at that speed the whole driving time is 9 hours then.  Ok, he drove 2 hours today, that means he drove 7 yesterday, 9 - 2.

how many miles is it for 7 hours at 56mph?  d = rt ---> d = 56 * 7

that many miles he drove yesterday.
8 0
3 years ago
What is the completely factored form of d4 -8d2 + 16
irinina [24]
According to Vieta's Formulas, if x_1,x_2 are solutions of a given quadratic equation:

ax^2+bx+c=0

Then:

a(x-x_1)(x-x_2) is the completely factored form of ax^2+bx+c.

If choose x=d^2, then:

\displaystyle x^2-8x+16=0\\\\x_{1,2}= \frac{8\pm  \sqrt{64-64} }{2}=4

So, according to Vieta's formula, we can get:

x^2-8x+16=(x-4)(x-4)= (x-4)^2

But x=d^2:

d^4-8d^2+16=(d^2-4)^2=[(d+2)(d-2)]^2=(d+2)^2(d-2)^2
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3 years ago
How do I graph y=3tanx?
galben [10]

Answer:

by graphing it

Step-by-step explanation:

Identify one hormone produced by an endocrine gland and state how it aids in the maintenance of homeostasis.

5 0
2 years ago
The extended warranty on a ceiling fan is 18% of the purchase price. If the price of the fan is $140, how much is the warranty?
kozerog [31]
B. if you do $140x18% it will equal $25.20
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3 years ago
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Brian claims that he can eat a pie that is divided into 6 equal pieces in 2 minutes if he can eat the whole pint 2 minutes how l
alekssr [168]
A third of a minute
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