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Whitepunk [10]
3 years ago
6

I WILL AWARD BRAINLIEST!! PLEASE HELP!!!

Mathematics
1 answer:
lana66690 [7]3 years ago
6 0

A.

speed =  \frac{distance}{time}

from the question,

the total speed for the pedestrian is

40km and the total time is 10hr

substitute them in the formula, we get

speed =  \frac{40}{10}

speed = 4km/hr

B. 10hrs - 6hrs = 4hours

C. BC is deacceleration = -dv/dt

CD is constant acceleration = dt = 0

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John needs to paint one wall in his school. He knows that 1 can of paint covers an area of 24 square feet. John uses a meter sti
laila [671]
The complete question in the attached figure

step 1
find the area of the wall

[area of the wall]=[area of rectangle]+[area of triangle]
[area of the wall]=[3*2]+[3*1/2]----> 7.5 m²

1 m²-------> 10.7639 ft²

area of the wall------> 7.5*10.7639------> 80.73 ft²

we know that
1 can of paint covers an area of --------> 24 ft²
x---------------------------------------------> 80.73 ft²
x=80.73/24---------> x=3.36 can of paints

the answer is
T<span>he fewest number of cans is 4</span>

6 0
3 years ago
BRAINLY!! 20 POINTS!!
mario62 [17]
A. the mean remains the same. 

For more info: brainly.com/question/4249234

Hope this helps love!
7 0
3 years ago
Read 2 more answers
I need help on 2,5 10-12,29 please anyone !!
AfilCa [17]

Answer:

2:1/2

5:16/24

10:Movie B

11:Movie D

12:2/3

I can't see 29. If you show it, then i will solve it.

Step-by-step explanation:

3 0
3 years ago
A set W of strings of symbols is defined recursively by 1. a, b, and c belong to W. 2. If x belongs to W, so does a(x)c. Which o
Vadim26 [7]

Answer:

a. a(b)c  

b. a(a(b)c)c  

d. a(a(a(a)c)c)c          

Step-by-step explanation:

We are given the following in the question:

a,b,c \in W\\\text{If } x \in W \Rightarrow a(x)c \in W

a. a(b)c

It is given b belongs to W.

b \in W\\\Rightarrow a(b)c \in W

b. a(a(b)c)c

a(b)c \in W\\\Rightarrow a(a(b)c)c \in W

c. a(abc)c

a(abc)c does not belong to W because we cannot find x in W such that a(abc)c belongs to W.

d. a(a(a(a)c)c)c

a \in W\\\Rightarrow a(a)c \in W\\\Rightarrow a(a(a)c)c \in W\\\Rightarrow a(a(a(a)c)c)c

e. a(aacc)c

a(aacc)c does not belong to W because we cannot find x in W such that a(aacc)c belongs to W.

8 0
3 years ago
Equation using the quadratic fromula for 0.05x^2 + 1.1x = 250
Anuta_ua [19.1K]

Answer:

x=60.56, x=-82.56

Step-by-step explanation:

Solve using quadratic formula

Formula is

x=\frac{-b+-\sqrt{b^2-4ac}}{2a}

0.05x^2 + 1.1x = 250

Subtract 250 on both sides

0.05x^2 + 1.1x - 250=0

a= 0.05, b=1.1 , c=-250

Plug in the values in the formula

x=\frac{-1.1+-\sqrt{(1.1)^2-4(0.05)(-250)}}{2(0.05)}

x=\frac{-1.1+-7.156116265}{0.1}

Now make two equations , one with +  and one with -

then we solve for x

x=\frac{-1.1+7.156116265}{0.1}

x=60.56

x=\frac{-1.1-7.156116265}{0.1}

x=-82.56


3 0
3 years ago
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