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Andreyy89
2 years ago
10

Alex was thinking of a number. Alex adds 13 to it, then doubles it and gets an answer of 84.5. What was the original number?

Mathematics
2 answers:
ICE Princess25 [194]2 years ago
8 0
29.25 then add 13 then double it
Katarina [22]2 years ago
4 0

Answer:

42.25

Step-by-step explanation:

just divied 84.5 to 2 and you'll get the answer

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(b12)3<br> The simplified expression is
AlexFokin [52]

Answer:

b^36

Step-by-step explanation:

8 0
3 years ago
In a rhombus MPKN with an obtuse angle K the diagonals intersect each other at point E. The measure of one of the angles of a ∆P
ololo11 [35]
Angles PMN and MPN are also 16 because the triangles are isosceles.
The measure of the third angle (angle N) is 148 which also equal to the measure of angle K. The measure of angle PKE is 74 which half of the measure of angle N and angle K.<span />
5 0
2 years ago
Read 2 more answers
3. Given that ∆RSV - ∆RTU, find the coordinates of S and the scale factor. R(0, 0) T(16,0) V(0, --6) U(0, -8) ​
MArishka [77]

Answer:

I'll give the scale factor and you can compute the coordinates of S

Step-by-step explanation:

the dilation if centered about the origin is the scale factor multiplied by each coordinate.

so looking at points V and U, the scale factor F is found by solving for F:

-6xF= -8

F=8/6=4/3

Now you can compute the coordinates for S

send a comment if you need help

5 0
2 years ago
What is 1/2,0.55,5/7 in least to greatest?
Neporo4naja [7]

Answer:

1/2, 0.55, 5/7 is your answer

Step-by-step explanation:

Change each into decimal

1/2 = 0.50

0.55 = 0.55

5/7 = ~0.71

0.50 < 0.55 < 0.71

~

3 0
3 years ago
Read 2 more answers
PLEASE HELP, THIS IS LAST QUESTION AND I WANNA GO TO BED
Anettt [7]

Answer:

x^4 -x^3 -4x^2-3

Step-by-step explanation:

f(x)=x^4−x^2+9  

g(x)=x^3+3x^2+12

(f−g)(x)= x^4−x^2+9 - (x^3+3x^2+12)

 Distribute the minus sign

(f−g)(x)= x^4−x^2+9 - x^3-3x^2-12

I like to line them up vertically

x^4        −x^2+9

    - x^3 -3x^2-12

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

x^4 -x^3 -4x^2-3

7 0
3 years ago
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