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Ugo [173]
3 years ago
11

Which of the following is a rational number ?

Mathematics
2 answers:
likoan [24]3 years ago
8 0
79 is the rational number
Crank3 years ago
5 0

Answer:

79 because it cannot take two of the same number multiplied in order to get that answer.

Step-by-step explanation:

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Let k ( x ) = 2 x + 3 and m ( x ) = 3 x 2 + 7 x − 10 . Find the indicated value. M ( k ( − 4 ) ) =
murzikaleks [220]

Answer: 30

Step-by-step explanation:

Given

k(x)=2x+3

M(x)=3x^2+7x-10

M\left(k(x)\right) is given by replacing the x by k(x) from the M(x)

\Rightarrow M\left(k(x)\right)=3(2x+3)^2+7(2x+3)-10\\\Rightarrow M\left(k(x)\right)=3(4x^2+9+12x)+14x+21-10\\\Rightarrow M\left(k(x)\right)=12x^2+50x+38

Now, M\left(k(-4)\right) is

\Rightarrow M\left(k(-4)\right)=12(-4)^2+50(-4)+38\\\Rightarrow M\left(k(-4)\right)=192-200+38\\\Rightarrow M\left(k(-4)\right)=30

8 0
3 years ago
The product of 5 more than a number, and 4
Lyrx [107]

Answer:

x + 5 * 4


In this problem we have to transfer the expression from verbal to mathematical language. Which would be:

x + 5 * 4

"x" represents "a number"

"5 more than a number" is represented by "x + 5"

"the product of" is indicating a multiplication, which is represented by "*"



Hope it helped,


BioTeacher101

3 0
3 years ago
Read 2 more answers
Points (1,3), (-4,7), and (-29,K) are collinear. Find K.<br><br> How do i solve this?
oee [108]
Co linear points have same slope
<span>Points (1,3), (-4,7), and (-29,K)
m1,2=7-3/-4-1=-4/5

m2,3=K-7/-29+4
m2,3=K-7/-25

-4/5=K-7/-25
4/5=K-7/25
4=K-7/5
20=K-7
K=27
 </span>
3 0
3 years ago
A square pyramid is shown:
Colt1911 [192]
Area of triangles:
0.5x9=4.5
4.5x2=9 (i divided 4 (the amount of triangles) by 2 instead of dividing 4.5 by 2)

area of square:
0.5x0.5=0.25

surface area of whole thing:
9+0.25=9.25

so the answer is 9.25

hope this helps :)
7 0
3 years ago
Help Please Mathhh!!!!!!!!!!!!!!!
irga5000 [103]

Answer: the Nswer for this is 30 people

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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