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Delicious77 [7]
3 years ago
5

Which is equal to (3 + 4) - 50

Mathematics
2 answers:
VladimirAG [237]3 years ago
8 0

Answer:

-43

hope this helps

have a good day :)

Step-by-step explanation:

3+4=7

7-50=-43

Ivan3 years ago
8 0

Answer:

Step-by-step explanation:

(3+4)-50

=7-50

=-43

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The water works commission needs to know the mean household usage of water by the residents of a small town in gallons per day.
mote1985 [20]

The confidence interval for the mean usage of water is (18.7,20.5).

Given population standard deviation of 2.4, mean of 19.5 gallons per day and confidence interval of 98%.

We have to find the confidence interval for the mean usage of water.

To find out the confidence interval we have to first find margin of error.

μ=19.5

σ=2.4

α=0.98

α/2=0.49

We have to find the z value for the p value 0.49 which is z=2.33

Margin of error=z*μ/\sqrt{n}

=2.33*19.5/\sqrt{3034}

=0.82

lower level=mean -m

=19.5-0.82

=18.68

after rounding upto 1 decimal

=18.7

upper mean = mean+m

=19.5+0.82

=20.52

Hence the confidence interval for the usage of water is (18.7,20.52).

Learn more about margin of error at brainly.com/question/10218601

#SPJ4

7 0
2 years ago
Graph the inequality on the numberline and then write it in interval notation. 4-3y<-8
pogonyaev

First, let's simplify the inequality

\begin{gathered} \frac{4}{3}y

The graph looks like this:

Notice that the white dot is placed above the -6, it is important to include it like that.

Now, as an interval:

\begin{gathered} y

6 0
1 year ago
the actual length of a Corvette is 15 feet. Using the scale factor 1:3, determine the length of the model Corvette in inches
vlada-n [284]
The length of the model will be 5”.

15/3=5
8 0
3 years ago
10) Find the measure of angle D. Hint: you must do two math problems to solve
NISA [10]

Answer:

Option A.) 43°

Step-by-step explanation:

Part 10)

step 1

Find the length of side EG

see the attached figure to better understand the problem

we know that

In the right triangle EGF

cos(65^o)=\frac{EG}{EF} ----> by CAH (adjacent side divided by the hypotenuse)

substitute the given values

cos(65^o)=\frac{EG}{11}

solve for EG

EG=(11)cos(65^o)\\EG=4.65\ cm

step 2

Find the measure of angle D

In the right triangle DEG

tan(D)=\frac{EG}{DG} ----> by TOA (opposite side divided by adjacent side)

substitute the given values

tan(D)=\frac{4.65}{5}\\\\D=tan^{-1}(\frac{4.65}{5})=43^o

3 0
3 years ago
The ____ identity is 1.<br><br><br> a) additive<br> b) multiplicative<br> c) distributive
aivan3 [116]

I think it’s B) multiplicative

3 0
3 years ago
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