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nignag [31]
3 years ago
14

Math riddle!

Mathematics
1 answer:
daser333 [38]3 years ago
8 0

Answer:

47

Step-by-step explanation:

There are total 52 cards.

Certain number of cards are lost.

When divided by 4, leaves 3 cards remain ; 51, 47, 43, 39, . . .

When divided by 5, leaves 2 cards remain : 47, 42, 37, 32, . . .

When divided by 3, leaves 2 cars remain : 50, 47, 44, 41, . . .

The common number among the three is 47.

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If a $200 billion increase in investment spending creates $200 billion of new income in the first round of the multiplier proces
telo118 [61]
The multiplier would be 4, I believe so.
5 0
3 years ago
Find the product. (n 7)2 n² 14n 14 2n² 14n 49 n² 14n 49.
Marianna [84]

The product of \rm (n+7)^2 is \rm n^2+14n+49.

Given

The product of \rm (n+7)^2.

<h3>What is multiplication?</h3>

Multiplication is the process of calculating the product of two or more numbers.

The multiplication of numbers say, ‘a’ and ‘b’, is stated as ‘a’ multiplied by ‘b’.

The product of \rm (n+7)^2 is given by;

\rm =(n+7)^2\\\\=(n+7)\times (n+7)\\\\= n(n+7)+7(n+7)\\\\=n^2+7n+7n+49\\\\=n^2+14n+49

Hence, the product of \rm (n+7)^2 is \rm n^2+14n+49.

To know more about Multiplication click the link given below.

brainly.com/question/19943359

8 0
2 years ago
PLEASE HELP
Marat540 [252]

Answer:

Triangle DEF is a right, scalene triangle. It is not isosceles, obtuse, acute, or equilateral

Step-by-step explanation:

All we know about m and n are that they are not equal to each other and they are positive. This was given in the problem. See image. Once it is graphed you can see on the graph the lengths of DE and EF. Use Pythagorean theorem to calculate DF. see image.

DE is horizontal and EF is vertical, so you can see their slopes or calculate using a formula. Calculate the slope of DF. Slope is y-y on top of a fraction and x-x on the bottom of the fraction.

Lastly, use midpoint formula to find the midpoints. Average the x's and average the y's to find the x- and y-coordinates of the midpoints. See image.

Finally, DEF is a right triangle. The graph as well as the slopes show us that DE and EF form a right angle. So DEF must be a right triangle (and not obtuse nor acute) We were told that m doesNOT equal n, so the triangle cannot have two equal sides, so it cannot be isosceles (2 equal sides) nor equilateral (3 equal sides) It has 3 different lengths of sides; that is called scalene.

4 0
2 years ago
Friend of mine needs an explanation of this problem.
horsena [70]
Hope u find some help
8 0
3 years ago
-2/3(4x - 2) = 1/4(3x +1)
aleksley [76]

Answer:????

Step-by-step explanation:

i don’t know shister

8 0
3 years ago
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