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3 years ago

Which number is itra

Mathematics

2 answers:

True [87]3 years ago

8 0

Answer:

Step-by-step explanation:

Its irrational

notka56 [123]3 years ago

4 0

Answer:

Step-by-step explanation:

a = 8/5 ∈ Q

c = 12 ∈ N

d = 1/2 ∈ Q

b ∈ I

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A garden measuring 10 meters by 7 meters is going to have a walkway constructed all around the perimeter, increasing the total a

SashulF [63]

The width of the pathway is 3m

Step-by-step explanation:

Let the width of the pathway be 'w'

The area will be 130 square meters

The dimensions of the garden is 10 x 7

Area = (10+w) (7+w)

130 = 70 + 17w + w^2

w^2 + 17w - 60 = 0

w^2 +20w - 3w - 60 = 0

w ( w + 20) - 3 ( w + 20) = 0

(w + 20) (w - 3) = 0

w = -20 ( or) w = 3

w is the width and cannot be negative.

So, w = 3 meters

The width of the pathway is 3m

5 0

2 years ago

tamara finds the sum of two number cubes rolled at the same time. the chart below shows all possible sums frim thr 36 possible c

Alla [95]

Im notr sure but if we take the chances that the 4 sum has to be either (1.3) (3.1) (2.2) (2.2) that means its chance is 4/36 for each roll which is also 1/9 ,, we can multiply 1/9 times the roll times ( 252 ) we get =28

8 0

3 years ago

(100 points)

LekaFEV [45]

Answer:

30/10 and 5/11

Step-by-step explanation:

8 0

3 years ago

Which comparison is true ? 3/4 > 7/8 1/2 < 5/8 2/3 < 3/8 7/8 > 9/10

Cloud [144]

Answer:

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

How do I solve these equations

Sever21 [200]

You need to know the properties of each function.
Tan is opposite (y) over adjacent (x). Sin>0 means that sin is positive, therefore, it is located on either quadrant 1 or 2. Tan=4/3 so it is located in quadrant 1.
The side of the triangle must be Adjacent=3 opposite=4 and hypotenuse=5
Now, you are asked to find the half angle of Cos which is
$\sqrt{\frac{1+cos}{2} }$
By following the formula, cos=3/5 then:
$\sqrt{ \frac{1- \frac{3}{5} }{2} }$ Multiply everything (inside the square $\sqrt{ \frac{5+3}{10} }$ root) by 5
$\frac{2 \sqrt{2} }{ \sqrt{10} }$
$\frac{2 \sqrt{20} }{10}$ Then just simplify
$\frac{ \sqrt{20} }{5}$ The answer is Square root of 20 over 5

3 0

2 years ago