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lana66690 [7]
3 years ago
10

What is the word for "numbers with square roots that are whole numbers"? I have no idea!

Mathematics
2 answers:
topjm [15]3 years ago
8 0
Perfect squares i think
vfiekz [6]3 years ago
7 0
The answer is perfect squares. Hope this helped!

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No fewer than means
eimsori [14]

Answer:

Greater than or equal to, or D.

8 0
3 years ago
Read 2 more answers
Which of the following equations has the given solution set?
tester [92]
-2m + 5 = 2m + 5
2m + 2m = 5 - 5
4m = 0
m = 0

-2m + 5 = -2m + 5
-2m + 2m = 5 - 5
0 = 0

-2m + 5 = -2m - 5
-2m + 2m = 5 + 5
0 = 10
Solution set is Ф
The third equation is the correct answer.
8 0
3 years ago
If sin x=2/9,x, in quadrant i, then find(without findingx): sin(2x), cos(2x), tan(2x)
Sergio039 [100]
We have that
<span>sin x=2/9

we know that
sin</span>² x+cos² x=1---------> cos² x=1-sin² x-----> cos² x=1-(2/9)²
cos² x=1-(4/81)------> (81-4)/81-----> 77/81
cos x=√(77/81)

Sin 2x = 2 sin x cos x-------> 2*(2/9)*(√(77/81))----> (4/81)*√77---> 0.43

Sin 2x=0.43
so
cos² 2x=1-sin² 2x---------> 1-[0.43]²-----> 1-[0.1878]----> 0.81
cos² 2x=0.81-----------> cos 2x=0.9

tan 2x=sin 2x/cos 2x--------> tan 2x=0.43/0.9---------> tan 2x=0.48

the answers are
sin 2x=0.43
cos 2x=0.9
tan 2x=0.48


8 0
3 years ago
Can someone please help me with 3 and 4
Bess [88]
4 is a regular rhombus I think don't quote me on that. I am pretty sure though
5 0
3 years ago
Read 2 more answers
The price of a car was decreased by 10% to £729. What was the price before the decrease?
ioda

Answer:

810

Step-by-step explanation:

The original price of the car = 100%.

Price is decreased by 10%- price now equal 90% of original.

Let original price = x

.9x=729

x=810

Check:

810 - .1(810) = 729

True!

8 0
3 years ago
Read 2 more answers
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