All categories

3 years ago

Jasper and Muthu cycled from Town P to Town Q. Jasper cycled at a speed of 36 km/h

Mathematics

1 answer:

Luda [366]3 years ago

3 0

Answer:

a,khoảng cách từ thị trấn P đến thị trấn Q là

Step-by-step explanat io n:

36*5=180(km)

b,Muthu đi xe đạp từ thị trấn P đến thị trấn Q hết số phút là:

180/40=4,5(h)=270(phút)

You might be interested in

According to Wine-Searcher, wine critics generally use a wine-scoring scale to communicate their opinions on the relative qualit

Romashka-Z-Leto [24]

Answer:

$\= x = 82$

$s = 9.64$

Step-by-step explanation:

From the question we are told that

The data is 87 91 86 82 72 91 60 77 80 79 83 96

Generally the point estimate for the mean is mathematically represented as

$\= x = \frac{\sum x_i }{n}$

=> $\= x = \frac{87 +91 + 86 + \cdots + 96}{12}$

=> $\= x = 82$

Generally the point estimate for the standard deviation is mathematically represented as

$s = \sqrt{\frac{ \sum ( x_i - \= x )^2 }{ n -1 } }$

=> $s = \sqrt{\frac{ ( 87 - 82 )^2 +( 91 - 82 )^2 + \cdots + ( 96 - 82 )^2 }{ 12 -1 } }$

=> $s = 9.64$

8 0

3 years ago

Mike had to call a plumber. The plumber charged $55 for the service call plus, plus $22 for parts, and an hourly rate. He worked

Semmy [17]

Answer: the answer is $456 and that is correct

Step-by-step explanation:

152×3= $456

4 0

3 years ago

Factor the polynomial completely

aliina [53]

We have $2x^2-8$ .

First let us factor the 2 to obtain,

$2(x^2-4)$

We can now see clearly that the expression inside the parentheses is a difference of two squares.

We now write the 4 as 2². So that we obtain the expression,

$2(x^2-2^2)$

Recall that

$a^2-b^2=(a+b)(a-b)$

Hence our expression becomes,

$2(x+2)(x-2)$

Therefore, when factored completely,

$2x^2-8=2(x+2)(x-2)$

5 0

3 years ago

Can someone help, please?

Kipish [7]

I think the answer is c

5 0

3 years ago

The Oates family went out for dinner the price of the meal was $33.95 the sales tax was 7.25% of the price of the meal . The tip

crimeas [40]

Well you have to go $33.95 x 7.25 and that will be your answer. Do it fast!

8 0

4 years ago