All categories

3 years ago

Using appropriate properties find. 2/5×(-3/7)-1/6×3/2+1/14×2/5

Mathematics

1 answer:

BigorU [14]3 years ago

7 0

Not for sure but maybe, -0.39285714285 if it’s correct hope it helps!

You might be interested in

I don't understand this at all

suter [353]

Answer:same :(

Step-by-step explanation:

6 0

3 years ago

5 What is the perimeter? use 3,14

Lera25 [3.4K]

Answer:

I don't understand the instructions, but I'll answer the question in the picture.

The angle next to 52 is vertical to y, so, 90-52=y.

Thus, y=38

6 0

2 years ago

a bus is traveling at a constant speed if the bus travels 15 1/2 miles in 1/3 of an hour how many miles will the bus travel in o

Svetradugi [14.3K]

Answer:93/2 or 46 1/2

Step-by-step explanation:

15 1/2 ✖️3

8 0

3 years ago

HELP ASAP I NEED THIS DONE IM IN A TIMED TEST (Find the area)

Anastasy [175]

Answer:

165

Step-by-step explanation:

base x base x height

8 0

3 years ago

The length of the hypotenuse of a right angled triangle exceeds the length of the base by 2cm and exceeds twice the length of th

insens350 [35]

Answer: a = 8; b = 15; c = 17

Step-by-step explanation:

c = b + 2 and c = 2a + 1

b = c − 2 and a = $\frac{c-1}{2}$

c² = b² + a²

$c^{2} = (c-2)^{2} + \frac{c-1}{2}\\$

$c^{2}= \frac{4 (c-2)^{2}+(c - 1)^{2} }{4}$

$4c^{2}={4 (c^{2} + 4 -4c)+c ^{2} + 1-2c$

$4c^{2}={4 c^{2} + 16 -16c)+c ^{2} + 1-2c$

$c^{2}-18c+17=0$

$c(c -17)-1(c-17)=0$

$(c -1)(c-17)=0$

c = 1 or c = 17

If c = 1 then b = 1 - 2 = -1, that's not possible

So x = 17

b = 17 - 2 = 15

a = $\frac{17-1}{2} = 8$

Length sides of the triangle are 17 cm, 15 cm and 8 cm.

I saw some of this on a site but I want to make sure its correct so we're gonna apply the pythagorean theory and see if its correct.

$a^{2} + b^{2} = c^{2} \\8^{2} + 15^{2} = 17^{2} \\64 + 225 = 289\\289 = 289\\$

This shows that this is correct.

Hope this helped! Again, some of this was from a site, not from me.

3 0

3 years ago

Using appropriate properties find. 2/5×(-3/7)-1/6×3/2+1/14×2/5​

Using appropriate properties find. 2/5×(-3/7)-1/6×3/2+1/14×2/5