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2 years ago

8

A map scale shows 1 cm = 300 km.

2 answers:

photoshop1234 [79]2 years ago

7 0

Answer:

c

Step-by-step explanation:

dlinn [17]2 years ago

6 0

Answer:

c

Step-by-step explanation:

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HELPPPP ASAP 1.Go to the website for the U.S. Bureau of Labor Statistics: www.bls.gov. Under the Subject Areas tab, look under P

lakkis [162]

Answer:

do you still need help for the answer?

Step-by-step explanation:

6 0

2 years ago

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Yan is climbing down a ladder. Each time he descends four rungs on the ladder, he stops to see how much farther he has to go

anastassius [24]

Question:

Yan is climbing down a ladder. Each time he descends 4 rungs on the ladder, he stopped to see how much farther he has to go. If Yan made eight stops with no extra steps, which expression best shows another way to write the product of the number of ladder rungs that Yan and climbed?

4+4+4+4

8+8+8+8

(-1)(4+4+4+4)

(-8) + (-8) + (-8) + (-8)

Answer:

$Total = (-8) +(-8) +(-8) +(-8)$

Step-by-step explanation:

Given

<em></em> $Rungs = -4$ <em> --- It is negative because he is climbing down</em>

$Steps = 8$

Required

An expression for the number of rungs climbed

To do this, we simply multiply the number of rungs by the steps taken.

$Total = Rungs * Steps$

$Total = -4 * 8$

This can be rewritten as:

$Total = -8 * 4$

The product, when written as sum is:

$Total = (-8) +(-8) +(-8) +(-8)$

8 0

3 years ago

If 2 power x= 1, then find the value of x.

Wewaii [24]

Answer:

x = 0

Step-by-step explanation:

2^x = 1

The only way a number can equal one when there's an exponent is when the exponent is 0

x = 0

2^0 = 1

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2 years ago

Lesson 12 practice problem number 2 imath book unit 1 geomitry

Nostrana [21]

Ur not telling us how to solve or what to solve.

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3 years ago

A detective finds a victim of murder at 9 am. At that time, the temperature of the body is 90.3 degrees F. One hour later, the b

LekaFEV [45]

Answer:

Step-by-step explanation:

Given

at 9 am temperature of the body is $90.3^{\circ}F$

1 hr later temperature $89^{\circ}F$

Temperature of room $T=68^{\circ}F$

According to newtons law

$\frac{\mathrm{d} T}{\mathrm{d} t}=-k\left ( T-T_{room}\right )$

$\frac{\mathrm{d} T}{\mathrm{d} t}=-k\left ( T-68\right )$

$\frac{dT}{T-68}=-kdt$

Integrating

$=\int \frac{dT}{T-68}=-kdt$

$\ln |T-68|=-kt+c$

$T-68=Ae^{-kt}$

Now at 9 am i.e. t=0,

$90.3=A+68$

$A=22.3$

At 10 am i.e. t=1 hr T=89

$89-68=22.3e^{-k}$

$e^{-k}=21$

$k=0.06006$

Temperature of Normal human body is $T=98.6 ^{\circ}F$

$98.6-68=e^{-0.06006t}$

$30.6=e^{-0.06006t}$

Taking log both sides

$t=-5.27$

i.e. 5 hr and 16.2 min

i.e. victim murdered at 3 am and 43.8 min

7 0

3 years ago