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Elenna [48]
3 years ago
15

Please simplifu.....

Mathematics
2 answers:
oksian1 [2.3K]3 years ago
5 0
Your answer is going to be B
iris [78.8K]3 years ago
3 0

Answer:

B) 2a√15a

Step-by-step explanation:

Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers. 2a√15a

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The number of miles driven by a truck driver falls between 300 and 700, and follows a uniform distribution.
Elena-2011 [213]

Answer:

(A) 0.125 probability

(B) 0.625 probability

(C) 660 miles

Step-by-step explanation:

The distance driven by a truck driver daily, falls between 300miles and 700miles and follows a uniform distribution.

(A) The probability that the truck driver goes more than 650 miles a day is:

[700 - 650] / [700 - 300]  = 50/400  = 0.125

(B) The probability that the truck driver goes between 400 and 650 miles a day is:

[650 - 400] / [700 - 300]  = 250/400  = 0.625

(C) The minimum number of miles the truck driver travels on the furthest 10% of days is given thus:

10% of 400  = 40

Subtract this from the farthest distance;

700miles - 40miles  = 660miles

7 0
2 years ago
What are the vertex, axis of symmetry, domain and range of the function:
DiKsa [7]
Y=(-x*x)-4x+3
y=-(x^2+4x-3)
4+y=-(x^2+4x+4)+3
y+4=-(x-2)^2.) +3
-4. -4
y=-((x-2)^2)-1

Answers:
Vertex: (2,-1)
AOS:x = 2
Domain: All Real Numbers
Range:[-1,Infinity)
3 0
2 years ago
How do I factor the equation in writing this question?
SCORPION-xisa [38]

Step-by-step explanation:

You are just replacing the 'n' with the number in the 'n box'.

So if this is the formula:

b(n) = 4 - (n \div 3)

then:

B(-3)= 4-(-3/3)

B(-3)= 4-( -1)

B(-3)= 4+1

B(-3)= 5

B(0)= 4-(0/3)

B(0)= 4-0

B(0)= 4

B(3)= 4-(3/3)

B(3)= 4-1

B(3)= 3

6 0
3 years ago
Pleeeeeeeeeease dont answer sumn other than the answer for point
lyudmila [28]

A n s w e r :

40 cups

5 0
3 years ago
Read 2 more answers
This is an ADDMATHS question!! It's a kinematics problem. Please help me for both a(i) and a(ii).
Kitty [74]
a(i). Since you are given a velocity v. time graph, the distance will be represented by:
\vec{s}(t) = \int_{a}^{b}\left \| \vec{v}(t) \right \|

In this case, however, we can just use simple geometry to evaluate the area under the graph v(t). I split it up into 2 trapezoids, and 1 rectangle. So, the area will be as follows:
A_t = A_{t1}+A_{t2}+A_r
A_{t1} = \frac{30+15}{2}(10) = 225m
A_{t2} = \frac{15+25}{2}(15) = 300m
A_r = 25(30) = 750m
A_t = 750+300+225 = 1275m

So, the particle traveled a total of 1275m assuming it never turned back (because it says to calculate distance).

a(iii). Deceleration is a word for negative acceleration. Acceleration is the first derivative of velocity, and so deceleration is too. So, we just need to find the slope of the line that passes through t = 30 because it has a linear slope (meaning the slope doesn't change). So, we can just use simple algebra instead of calculus to figure this out. Recall from algebra that slope (m):
m = \frac{y_2-y_1}{x_2-x_1}

So, let's just pick values. I'm going to pick (25, 30) and (35, 15). Let's plug and chug:
m = \frac{15-30}{35-25} = -\frac{15}{10} = -\frac{3}{2}

Since it's a negative value, this means that acceleration is negative but deceleration is positive (because deceleration is negative acceleration). So, your answer is: The deceleration of the particle at t = 30s is 3/2 or 1.5.
5 0
3 years ago
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