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Vera_Pavlovna [14]
3 years ago
11

What does 3/9+5/9 equal?

Mathematics
2 answers:
lys-0071 [83]3 years ago
8 0
The anwser is 8/9 Since both of the fractions have the same denomonaters you can add the numoraters together two get 8/9 
sattari [20]3 years ago
4 0
\frac{3}{9}+\frac{5}{9}=\frac{3+5}{9}=\boxed{\frac{8}{9}}
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Keirra’s mother gave her $7.50 to buy 8 spiral notebooks. With tax, the cost of each notebook is $1.05. Does Keirra have enough
GuDViN [60]

Answer:

No

Step-by-step explanation:

each notebook is $1.05 and the is $7.50

there is only enough for seven notebooks not eight.

7 0
3 years ago
3x - 4y = -15 ; 4x +3y =5
Kipish [7]
Using elimination method to find y
3x - 4y = -15  (multiply 4)
4x + 3y = 5    (multiply 3)
------------------------------------
12x - 16y = -60
12x + 9y  = 15
--------------------- - (substract)
         -25y = -75
               y = 3

Using subtitution method to find x
3x - 4y = -15
3x - 4(3) = -15
3x - 12 = -15
3x = -3
x = -1

The solution (-1,3)
4 0
3 years ago
how to find the period, amplitude, and vertical shift of a sinusoidal graph. please explain in the simplest way possible, tyyyy
Kay [80]

Answer:

Step-by-step explanation:

a) period is the length of one cycle  ( one full squiggle ) If you are lucky and the graph is on exact numbers.. at a high point and to the next high point.. then just take that horizontal distance,  that's one period  also if it's not  you could find the period, T,  by using  T = 2pi / k    where k is a number that represents how fast , or how many times the wave cycles in one second or some other amount of time.  

b) Amplitude is a number that goes right before the sinusoid, which is multiplied by it because,  sin , cos,  are at max 1 or at min -1  

c)  vertical shift is what is added , for upwards shift... before or after the                      sinusoid  ie  sin , cos,  ect ect.

does this help?

4 0
3 years ago
The length of the minute hand of a clock is
svetlana [45]

Answer:

Therefore,

The length of the path traced  by the outer tip of the minute hand in one hour, is 88 inches.

Step-by-step explanation:

Given:

The length of the minute hand of a clock is,

Which is as Radius,

Therefore,

Radius = r = length of the minute hand = 14\ inches

pi = 22/7

To Find:

The length of the path traced  by the outer tip of the minute hand in one hour, will be One full rotation, that is

Circumference, C = ?

Solution:

Circumference, is given by,

Circumference = 2\pi r

Circumference = 2\times \dfrac{22}{7}\times 14=88\ inches

Therefore,

The length of the path traced  by the outer tip of the minute hand in one hour, is 88 inches.

7 0
2 years ago
What is the domain of f(x)=(1/2)^x
KIM [24]

Answer:

Domain: all real numbers

Step-by-step explanation:

The domain of a function is the set of values that x can be replaced with.

In this function, x can be replaced by any real number, so the domain of the function is all real numbers.

3 0
2 years ago
Read 2 more answers
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