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Veseljchak [2.6K]
4 years ago
12

Complementary angles must be acute true or false

Mathematics
2 answers:
densk [106]4 years ago
8 0
True  because their sum is 90 degrees.
vaieri [72.5K]4 years ago
6 0
Acute angles are 90 degrees so it's true
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By selling a motor cycle for rate 23,000 a dealer gain 15% find its cost price​
nordsb [41]

HEY DEAR

Step-by-step explanation:

Given:- SP = 23,000

Gain% = 15%

CP=?

CP = 100× S.P / (100+ profit%)

CP= 100× 23,000/ 100+ 15%

HOPE ITS HELPFULL.:)

4 0
3 years ago
Pls :,) i suck at math
vesna_86 [32]

Answer:

60%

Step-by-step explanation:

The original was $20 to $12, so if you divide both prices by 2 (to make one side 10 and the other the simplified percentage) you get:

10 to 6.

Percentages are typically x% out of 100, so if you multiply both by 10 you get:

100 to 60. All you have to do now is change the format to percentage instead of a fraction (60/100) and the answer is 60%.

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Mocha here! If this answer helped you, please consider giving it brainliest because I would appreciate it greatly. Have a wonderful day!

6 0
3 years ago
Read 2 more answers
Factorise<br> X2 + 3√3x + 6. Please help me with this it’s urgent
ser-zykov [4K]

Answer:

(x+2\sqrt{3} )(x+\sqrt{3} )

Step-by-step explanation:

x^2 + 3\sqrt{3}x + 6\\=> x^2 + \sqrt{3}x + 2\sqrt{3}x +6\\=> x( x+\sqrt{3}) + 2\sqrt{3}(x+\sqrt{3} )\\  => (x+2\sqrt{3} )(x+\sqrt{3} )

6 0
3 years ago
There are currently 4,000 Rhinos left in the world and they are going extinct at a rate of 3.7% each year. How many Rhinos will
cupoosta [38]

Answer:

2744 Rhinos will be left after 10 years

Step-by-step explanation:

This question has to do with exponential decay rate. We solve this using the formula:

P(t) = Po(1 - r)^t

Where P(t) = Amount left after t years

Po = Initial amount

r = Decay rate = 3.7% = 0.037

t = time in years = 10 years

P(t) = 4000(1 - 0.037)¹⁰

P(t) = 4000 × 0.963¹⁰

P(t) = 4000 × 0.6859032667003232

P(t) = 2743.6130668

Approximately = 2744 Rhinos will be left after 10 years

3 0
3 years ago
How can you use an equation to make a prediction from a pattern?
Vanyuwa [196]
Upon formation of an equation from a given pattern, we know how the variables in the patter are related. Using the equation, we can find the value of one of the missing variables if the rest are known and also predict the values of the pattern at given conditions.
An example:
y = 2x + 5
if we are to predict the value of y at x = 3, we simply substitute 3 into x
y = 2(3) + 5
= 11
8 0
3 years ago
Read 2 more answers
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