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Viktor [21]
3 years ago
7

.072 divided by 345.000 round to the nearest tenth

Mathematics
1 answer:
tino4ka555 [31]3 years ago
8 0

Answer:

0.0

Step-by-step explanation:

Used a calculator

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15 points!!! GEOMETRY help please!!<br> Questions attached!
dolphi86 [110]
3. Look at the picture.

We have the right angle triangle. We know the sum of measures of angles in triangle is equal 180°. Therefore:

x^o+90^o+43^o=180^o\\\\x^o+133^o=180^o\ \ \ |-133^o\\\\x^o=47^o

Answer:\ \boxed{47^o}

4.
Look at the picture.

Use Pythagorean theorem:

x^2+14^2=(10+x)^2\\\\x^2+196=10^2+2\cdot10\cdot x+x^2\ \ \ \ |-x^2\\\\196=100+20x\ \ \ |-100\\\\20x=96\ \ \ |:20\\\\x=4.8

Used:\ (a+b)^2=a^2+2ab+b^2

Answer:\ \boxed{4.8\ units}

5.
TRUE: 1; 2; 4

6.
We find a slope of the line OP:

m=\dfrac{y_2-y_1}{x_2-x_1}\\\\O(2;\ 6)\to x_1=2;\ y_1=6\\\\P(4;\ 3)\to x_2=4;\ y_2=3\\\\m=\dfrac{3-6}{4-2}=\dfrac{-3}{2}

We have: OP:\ y=-\dfrac{3}{2}x+b

Now, we must find the slope of the line perpendicular to the line OP.
We know:

k:y=m_1x+b;\ l:y=m_2x+c\\\\k\ \perp\ l\iff m_1m_2=-1

therefore

-\dfrac{3}{2}m_2=-1\ \ \ |\cdot\left(-\dfrac{2}{3}\right)\\\\m_2=\dfrac{2}{3}

So. We have the answer! :)

Answer:\ \boxed{y=\dfrac{2}{3}x+\dfrac{1}{3}}

6 0
3 years ago
2. There are 3 marbles (yellow, blue, and
AURORKA [14]
   y          b         g
/    \       /  \       /   \
h    t     h   t     h    t
soooo 6 outcomes
6 0
3 years ago
How many three​-digit numbers may be formed using elements from the set ​{1, 2, 3, 4, 5, 6, 7​} if no element may be used more t
PSYCHO15rus [73]

Answer: 90

Step-by-step explanation:

set: ​{1, 2, 3, 4, 5, 6, 7​} = 7 numbers | 3 even

no element may be used more than once in a number = distinct elements

and the number must be​ even = must finish with a even number.

This way, we should start with the last number, which we have 3 possibilities.

Since we have 7 numbers in total, we have 6 options for the first one and then 5 options for the second one.

So, we have 6.5.3 = 90

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3 years ago
How to get the simple interest
ExtremeBDS [4]

Answer:

0-o? you got my interest in you :0

Step-by-step explanation:

8 0
3 years ago
Help please! thank you
Lorico [155]

Answer:

use a hint it usally helps me

Step-by-step explanation:

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