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andreev551 [17]
3 years ago
9

V(t)=t2−3t what is the meaning of the quantity v(4) ?

Mathematics
1 answer:
GalinKa [24]3 years ago
5 0
V(4)=4²-3×4=16-12=4 is the result of substituting t=4 in the function.
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Triangle ABC is rotated 45° counterclockwise about vertex A to obtain triangle XYZ. If the m∠ABC is equal to 30°, what is the m∠
prohojiy [21]

Answer:

B,30

Step-by-step explanation:

4 0
3 years ago
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What is the value of x?<br> 750<br> 37°
RSB [31]
Whats the problem? i cant solve it w/o the problem doll
3 0
2 years ago
The perimeter of a rectangular field is 296 yards. if the length of the field is 79 yards, what is its width?
Len [333]
Perimeter of rectangle is 2L + 2W
perimeter is 296
length of field is 79

Solve
2L + 2W = 296
2(79) + 2W = 296
158 + 2W = 296
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8 0
3 years ago
(Small sample confidence intervals for a population mean) suppose you are taking a sampling of 15 measurements. you find that x=
Luda [366]

Answer:

The 99% confidence interval is  71.67 < \mu < 78.33

Step-by-step explanation:

From the question we are told that

     The sample  size  is  n  =  15

      The  sample  mean is  \= x  =  75

        The  standard deviation is  s =  5

 Given that confidence is  99%  then the level of significance is mathematically represented as

              \alpha  =  100 -  99

             \alpha  =  1\%

             \alpha  =  0.01

Next we obtain the critical values of  \frac{ \alpha }{2} from the normal distribution table

   The  value is

                  Z_{\frac{ \alpha }{2} } = 2.58

Generally the margin for error is mathematically represented as

            E =  Z_{\frac{ \alpha }{2} } *  \frac{ s}{ \sqrt{n} }

=>         E =  2.58  *  \frac{ 5}{ \sqrt{15} }

=>         E =  3.3307

   The  99% confidence interval is mathematically represented as

             \= x  -E  <  \mu  <  \= x  +E

=>          75 -  3.3307 <  \mu

=>          71.67 < \mu < 78.33

3 0
3 years ago
Help please I really need it
KatRina [158]

First write the equation 8 + 12 > x because according to the triangle property, the sum of any 2 sides have to be greater than the third side. This means that the difference of any two sides should be smaller than the third side.


So, the answer would be 4 < x < 20.



8 0
2 years ago
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