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Paraphin [41]
3 years ago
7

5) h(x) = 2x + 4; Find h(-3)

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
5 0

Answer:

-2

Step-by-step explanation:

You make x= -3 then you insert it into the problem which is x= 2(-3)+4

2 times -3 is -6 which then you would get

-6+4 which equals -2

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A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 46.0 and 56.
barxatty [35]

Answer: 0.05

Step-by-step explanation:

Given : Interval for uniform distribution : [46.0 minutes, 56.0 minutes]

The probability density function will be :-

f(x)=\dfrac{1}{56-46}=\dfrac{1}{10}=0.1\ \ , 46

The probability that a given class period runs between 50.75 and 51.25 minutes is given by :-

P(50.75

Hence, the probability that a given class period runs between 50.75 and 51.25 minutes = 0.05

7 0
3 years ago
3 rows of carrots, 2 rows of string beans, 1 row of peas. There are 8 in each row. How many plants are there in the garden?
mr_godi [17]
There are 48 individual plants in the garden.
3 0
3 years ago
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The ratio of adults to children attending a new exhibit at the museum was found to be 8:5. Based on this ratio, if 390 people at
Zinaida [17]
8x+5x=390\\
13x=390\\
x=30\\\\
5x=5\cdot30=\boxed{150}
6 0
3 years ago
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The area of a rectangular plank is 4500 cm². The plank was broken into two pieces, one of which is a square and the other a rect
svp [43]

Answer:

Xs=30cm and As=900 cm^{2}

Step-by-step explanation:

At=As+Ar; A=b.h and At=4500 cm^{2}, then:  At=(x+120)x so

(x+120)x=4500, x^{2} +120x-4500=0 Applying cuadratic equation formula:\frac{120+-\sqrt{120^{2} -4.1.-4500} }{2} =-\frac{120+-\sqrt{14400+18000} }{2}= x1=30 and x2=-150, finally Xs=30cm, and As=900cm^{2}

3 0
3 years ago
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which expression completes the equation showing the next step monte needs to take n×0.4=8 n×0.4÷0.4=?
forsale [732]
N * 0.4 =8n*0.4:0.4=2
8 2*0.4:0.4= 32.8:0.4=82
3 0
3 years ago
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