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3 years ago

I need help with this plz !!!!!!

Mathematics

2 answers:

Alika [10]3 years ago

5 0

2nd one is the correct one I think

Aleks [24]3 years ago

4 0

Answer:

Step-by-step explanation:

$d$

This inequality does not have ≤ nor ≥. This indicates that when the inequality is graphed on a number line, it will be an open circle.

Using this information, we can eliminate options A, B, and C.

This inequality also indicates that 'd' is less than 4; 4 is greater than 'd.'

Since 'd' is less than 4, the line would go toward the numbers less than 4.

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Can someone help me with part b?

Tema [17]

Step-by-step explanation:

the average rate of change of a function f in an interval [x-low, x-high] is

(f(x-high) - f(x-low)) / (x-high - x-low)

the year 2000 means t = 2000-1980 = 20

the year 2015 means t = 2015-1980 = 35

so, we have

(A(35) - A(20)) / (35 - 20)

((-0.6(35)² + 37.2×35 + 243) - (-0.6(20)² + 37.2×20 + 243)) / 15

((-735 + 1302 + 243) - (-240 + 744 + 243)) / 15

(810 - 747) / 15 = 63/15 = 4.2

the average change rate between 2000 and 2015 is 4.2.

that means that the use of nuclear energy in the USA increased by 4.2 billions of kilowatt hours per year during that period.

3 0

3 years ago

Can someone please help me i would just need the answer

o-na [289]

Answer:

80+50P

Step-by-step explanation:

80 is fixed

50 is variable

1 device = 130

2 decices = 180

8 0

3 years ago

Fill in the blank with the correct inequality symbol

12345 [234]

Answer:

Step-by-step explanation:

4 is greater than 3

sqrt15 is greater than sqrt6

So 4+sqrt15 must be greater than 3+sqrt6

6 0

2 years ago

Of 450 college students, 110 are enrolled in math, 205 are enrolled in English, and 50 are enrolled in both. If a student is sel

likoan [24]

Answer:

Step-by-step explanation:

Given that Of 450 college students, 110 are enrolled in math, 205 are enrolled in English, and 50 are enrolled in both. If a student is selected at random

the probability

(a) The student is enrolled in mathematics= $\frac{110}{450} =0.244\\$

(b) The student is enrolled in English.= $\frac{205}{450} =0.456\\$

(d) The student is enrolled in mathematics or English.= $\frac{110+205-50}{450} =0.589\\$

(e) The student is enrolled in English but not in mathematics.

= $\frac{205-50}{450} =0.344\\$

(f) The student is not enrolled in English or is enrolled in mathematics.

= $\frac{450-205+110}{450} =0.7889\\$

8 0

3 years ago

Make this into one equation please

Zanzabum

Answer:

5x-5x+8=2

Step-by-step explanation:

substitute y with -5+8

3 0

2 years ago