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3 years ago

Use the figure to find the segment length or angle measure for m∠BEF and FE

Mathematics

1 answer:

34kurt3 years ago

8 0

It appears that BEF is marked the same as BED. BED is 180 - 90 - 50 which is 40. angle BEF = 40. If triangle BED is congruent to triangle BEF, which it is, then FE is the same measure as DE, and it just so happens that DE is marked congruent to CD which is 7. Therefore, FE is also 7.

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Biology application. The approximate number of calories C that an animal needs each day is given by

Reika [66]

Answer:

C = 288 kg

Step-by-step explanation:

Given:

C = 72m^2/4

where,

C = approximate number of calories

m = animal mass in kilograms.

Find C when m = 16

C = 72m^2/4

= 72 * (16)^2/4

= 72 * (16)^1/2

= 72 * √16

= 72 * 4

= 288

C = 288 kg

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3 years ago

Bernardo is converting a fraction, StartFraction a Over b EndFraction, to a percent. Both a and b are whole numbers and not equa

antoniya [11.8K]

Answer:

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3 years ago

Read 2 more answers

A deep freezer has a temperature of -6°C when it is turned off.

Xelga [282]

Answer:

y = -6 + 1.2*x is the answer I would use, but see the note below.

Step-by-step explanation:

Let x = the number of minutes.

Let y = the temperature at any given time.

y = -6 + 1.2*x

This is the equation that you would use if you were calculating y with a calculator. If you are in a chemistry class it should be written as

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4 0

3 years ago

How do I use benchmark fractions

Mumz [18]

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3 years ago

Based on the Nielsen ratings, the local CBS affiliate claims its 11:00 PM newscast reaches 41 % of the viewing audience in the a

Fantom [35]

Answer:

null hypothesis is p=0.41

alternate hypothesis is p<0.41

Sample proportion is 0.36

critical value for a = 0.01 is -2.2326

z-statistic is −1,0166

critical value for the level of significance 0.10 is -1.28155

we fail to reject the null hypothesis in 0.01 significance level.

Step-by-step explanation:

Let p be the proportion of the viewing audience of 11:00PM CBS newscast in the area. Then

$H_{0}$ : p=0.41

$H_{a}$ : p<0.41

Sample proportion is 0.36 and critical value (left tailed) for a=0.01 is -2.2326

sample proportion Z-score can be calculated as follows:

z(0.36)= $\frac{p(s)-p}{\sqrt{\frac{p*(1-p)}{N} } }$ where

p(s) is the sample proportion of vieved newscast (0.36)

p is the proportion assumed under null hypothesis. (0.41)

N is the sample size (100)

putting the numbers z(0.36)= $\frac{0.36-0.41}{\sqrt{\frac{0.41*0.59}{100} } }$ =−1,0166

if the level of significance is 0.10 then critical value would be -1.28155.

in 0.01 significance level sample mean is not in the critical region, therefore we fail to reject the null hypothesis.

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3 years ago