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Lana71 [14]
3 years ago
10

" alt="42 \times 42 \times 29 = " align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Blababa [14]3 years ago
6 0
The correct answer is 51156



Hope this helps :)
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Kindly solve this please!<br>Diagram for both the questions are given.​
Bogdan [553]

Answer:

  • Q9 - B) 8
  • Q10 - D) 4.5

========================

<h2>Question 9</h2>

We have a diagram and need to find the number of routes without repeat paths:

  • ABCA or ACBA

We can see that there is one route from A to B, two routes from B to C and two routes from C to A. This is same on reverse order.

This gives us the number of routes:

  • ABCA = 1*2*2 = 4
  • ACBA = 2*2*1 = 4

Total number is:

  • 4 + 4 = 8

The matching answer choice is B

---------------------------------------------------------------------------

<h2>Question 10</h2>

From the given we can observe that:

ABC and DCE are similar triangles, since they have same angle at vertex E (vertical angles are equal) and both are right triangles.

From similarity we get same ratio of corresponding sides:

  • AE/DE = AB/CD = 3/9 = 1/3

We can find areas of triangles ACD and ECD and subtract to get the area of triangle AEC:

  • S_{ACD} - S_{ECD} = S_{AEC}

As per ratio of corresponding sides:

  • AE/DE = 1/3

As per segment addition:

  • AE + DE = AD = 4

From the two equations above we get:

  • DE = 3/4*AD = 3/4*4 = 3

Now, the required area is:

  • S_{ACD} - S_{ECD} = 1/2(4*9) - 1/2(3*9) = 4.5

This is matching the answer choice D

3 0
1 year ago
Read 2 more answers
a water turck is filling a swiming pool. the euqation that represents this relationship is y = 19.75x where y is the number of g
Levart [38]

Answer:

<h2>True </h2>

Step-by-step explanation:

Given the expression

y = 19.75x

let us see the solution from this angle

we know that

speed=distance/time

distance=speed*time

i.e quantity=rate*time

y = 19.75x

y=the quantity =number of gallons

19.5= the rate of flow

therefore

x= the time in  minutes

8 0
2 years ago
Point m is the midpoint of line segment ab, b is at (20,4), m is at (18, -2) and a is at (p,q). what is p+q?
Alexandra [31]
The x-value of a midpoint is the average of the x-values of the ends.
The y-value of a midpoint is the average of the y-values of the ends.

The x-value of the end at b is 20 and it's 18 at the middle.
x has decreased by 2 in the course of 1/2 of the line.
So it will decrease another 2 during the other half of the line.
The x-value at the other end, at a, then, is 16.

The y-value of the end at b is 4 and it's -2 at the middle.
y has decreased by 6 in the course of 1/2 of the line.
So it will decrease another 6 during the other half of the line.
The y-value at the other end, at a, then, is -8.

The other end of the line, at a, is at  (16, -8) .

The sum of the coordinates at a (p+q) is  8  .


8 0
3 years ago
Find the range for f(x) = x^2 1, for x &lt; 0.<br><br> y ≥ 1<br> y &gt; 1<br> y &lt; 1<br> y ≤ 1
Rus_ich [418]
For x < 0, range is y ≤ 1.
3 0
3 years ago
From 5 a.m. to noon, the temperature rose 15 °F to a high of 10 °F.
kodGreya [7K]

Answer:

The temperature was 5 °F

7 0
3 years ago
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