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Natali [406]
3 years ago
12

I think of a number take away one and multiply the result by three but using x as your unknow

Mathematics
1 answer:
Georgia [21]3 years ago
4 0
I think of a number, (55) = my x. -1 = 54 x 3 = 162.
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Please help me this will mark brainiest thx I will appreciate it thank you
Savatey [412]

Answer:

z=40 degrees

x=90 degrees

y=40 degrees

Step-by-step explanation:

To solve z you know that 50+90+z= 180 degrees. So z equals 40. To solve x you subtract 90 from 180 to get 90 degrees. To solve you add 50+x+y. You know that x= 90. You would add the angles together to get 180 degrees. 50+90=140 and 180-140 equals 40. Sorry if i'm wrong.

6 0
3 years ago
Find (4.2) x (1.6) by drawing an area diagram or using another method. Show your reasoning. Pleae answer this I really need help
olchik [2.2K]

Answer:

the answer is 6.72

Step-by-step explanation:

Instead of a diagram you can do 4.2 times 1.6 and after you finishes doing that You put the decimal 2 times and you should get 6.72

8 0
3 years ago
Write an equation that models the sequence 400, 200, 100, 50, ...
VLD [36.1K]
X/2 is what i think it is because each number divides by 2
6 0
3 years ago
Read 2 more answers
Which equation should be used to graph y=sec^-1(x) on a calculator ?
erastova [34]
Arcsecant or arcsec or sec⁻¹ is an inverse trigonometric function. And many calculators don't have a key for them because they can be calculated with basic trigonometric functions like so:

sec⁻¹(x)=cos⁻¹(1/x). 

So the correct answer is the fourth one: y=cos⁻¹(1/x).
4 0
3 years ago
When 1 is added to the difference between seven times a number and 9, the result is greater than 10 added to 6 times the number.
yuradex [85]
10x6x9? Or simplify this question for me I'll figure out.
6 0
3 years ago
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