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diamong [38]
3 years ago
14

I cant seem to get this right, please help me!!

Mathematics
2 answers:
Ipatiy [6.2K]3 years ago
8 0

Answer:

x = 19

Step-by-step explanation:

x + x + 4 + 3x - 9 = 90

5x - 5 = 90

5x = 95

x = 19

babunello [35]3 years ago
4 0
19 the answer would be 19
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Pls help due ASAP <br> Show workings pls
kobusy [5.1K]
The answer is c
you (4,4) and another point need to be double (2,-5) so the other point needs to add to (4,-10) so 4 + 0 is 4 and 4 + - 14 = 10
4 0
3 years ago
Find all solutions in the interval [0, 2π). tan x + sec x = 1
svp [43]
Use the identity 
sec^2x = 1 + tan^2 x
- so sec x = sqrt(1 + tan^2 x) then:-
tan x + sqrt( 1 + tan^2 x) = 1
sqrt ( 1 + tan^2 x) = 1 - tan x
1 + tan^2 x  = 1 + tan^2x - 2 tan x
0 = -2 tanx 

tan x = 0 

x =  0, π 
π is an extraneous root because sec 180 = -1 
So the answer  is 0 degrees
6 0
3 years ago
ishmal invested £3500 for 3 years at 2.5% per annum simple interest. Work out the total amount of interest Ishmal earned.
Jlenok [28]

Answer:

Interest Earned is $262.5

Step-by-step explanation:

Interest=PRT/100

When P=Principal, R=Rate, T=Time

Interest earn =( 3500 x 3 x 2.5)/ 100

I=$26,250 / 100

I=$262.5

6 0
3 years ago
-3+ 4d - 2f + 3d + 6f - 4 - 8
Igoryamba

Answer:

<h2><em><u>7d + 4f - 15</u></em></h2>

Explanation:

-3 + 4d - 2f + 3d + 6f - 4 - 8

= −3 + 4d + −2f + 3d + 6f + −4 + −8

  • Combine Like Terms

= −3 + 4d + −2f + 3d + 6f + −4 + −8

(4d + 3d) + (−2f + 6f) + (−3 + −4 + −8)

7d + 4f + −15

= 7d + 4f - 15

5 0
3 years ago
These box plots show daily low temperatures for a sample of days in two
Elan Coil [88]

Answer:

The answer is B.

Step-by-step explanation:

As you can see, box plot A is symmetrical so that applies to answers A and B. However, box B is very skewed to the right which makes it positively skewed so answer B is the only one that matches the correct description of the two box and whisker plots.

8 0
3 years ago
Read 2 more answers
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