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3 years ago

Which ratio does not belong with 2/6 a) 1/3 b) 3/9 c)6/15 d) 12/36

Mathematics

1 answer:

just olya [345]3 years ago

8 0

Answer:

C)6/15

Step-by-step explanation:

it reduces to 2/5 no 1/3

12/36 --> 1/3

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Find the distance between the points (2,3) (-3,-6)

Valentin [98]

Answer:

10.3

Step-by-step explanation:

As we move from (-3,-6) to (2,3), x increases by 5 (this is the horizontal distance between (2,3) and (-3,-6) ) and y decreases by 9 (vertical distance).

We apply the Pythagorean Theorem here:

d^2 = x^2 + y^2, or

d^2 = (5)^2 + (-9)^2 = 25 + 81 = 106

Thus, the distance between (2,3) and (-3,-6) is d = sqrt(106), or approx.

10.3.

7 0

3 years ago

The Sahara Desert has an area of approximately 9 400 000 km^2. While estimates of its average depth vary, they center around 150

Andrew [12]

Answer:

a). $1.128\times 10^{25}$ grains

b). $\frac{1}{8000}$

c). $6.54305\times 10^{7}$ years

Step-by-step explanation:

a). Given Sahara desert has an area of approximately = 9400000 km²

= 9400000×(10000000000) cm²

= $9.4\times 10^{16}$ cm²

Depth of the desert = 150 m

= 15000 cm

Volume of desert = Area × Depth

= $9.4\times 10^{16}\times 15000$

= $1.41\times 10^{21}$ cm³

Since 1 cm³ holds sand grains = 8000

Therefore, Grains in Sahara Desert = $1.41\times 10^{21}\times 8000$

= $1.128\times 10^{25}$

b). Since 1 cm³ = 8000 grains

1 grain = $\frac{1}{8000}$ cm³

c). A truck can carry sand = 20.5 m³ Or $20.5\times (10^{2})^{3} cm^{3}$

= $2.05\times 10^{7}$ cm³

Now time taken to recreate Sahara Desert = $\frac{\text{Total amount of sand}}{\text{Sand in one truck}}\times 30$ seconds

= $\frac{1.41\times 10^{21}}{2.05\times 10^{7}}\times 30$

= $20.6341463\times 10^{14}$ seconds

= $\frac{20.6341463\times 10^{14} }{365\times \times 24\times 3600}$ years

= $6.54305\times 10^{7}$ years

6 0

3 years ago

What are the coordinates of point S?

xxMikexx [17]

CC. 2 units in positive x and 3 units in positive z

8 0

3 years ago

Help please ! need asap

Dimas [21]

Answer:

x° = 139

step 1 :

180 - (37 + 38)

= 180 - 75

= 105°

step 2 :

180 - 105

= 75°

step 3 :

180 - 116

= 64°

step 4 : this step to find the value of x

x° = 180° - (64 + 75)°

= 180° - 139°

= 41

x° = 41

<h3>#CMIIW</h3>

7 0

2 years ago

What is the reciprocal Consider the expression (5) of the base? Write your answer as a fraction, using the / symbol, like this:

lora16 [44]

Reciprocal of a fraction<h2>Answer</h2>

8/7

<h2>Explanation</h2>

In this case, the base is 7/8 and the exponent is -4.

In order to find the reciprocal of a fraction we just have to flip it upside down:

That is why the answer is 8/7.

3 0

1 year ago