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nataly862011 [7]
4 years ago
6

Pleaasse explain:))))

Mathematics
1 answer:
insens350 [35]4 years ago
8 0
C) X < 1 can be assumed to start an indirect proof for x≤1

Hope this helps!
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A survey of 75 students was conducted to find out where the seventh grade wanted to go to visit College colleges and universitie
Nat2105 [25]
For this question, we need to find the unit rate. 7.5 is 10% of 75 (which we can find by dividing 75 by 10). Then, in order to get 30 from this, we would have to multiply 7.5 x 4. Because we multiplied this by 4, that hints to us that 40% of 75 is 30. With this knowledge, we can find 40% of 300, which when doing the math would be 120. Therefore, because 30/75 students would want to go to Clemson University, that means 120 students out of 300 would want to go to Clemson University. Thus, our answer is 120 students
4 0
2 years ago
Use trig ratios to find the measure of the angle in this triangle. A .cos^-1(4/5) B. tan(4/5) tan^-1(4/5) C. sin(4/5) D. cos(4/5
ololo11 [35]

Answer:

The answer is A

Step-by-step explanation:

Step 1: Use Cosine to find ∅

Cos∅=\frac{4}{5}

∅=Cos^{-1}(\frac{4}{5})

Therefore the answer is A

8 0
3 years ago
Wich of the following is a factor of both (2y)3 + (y)2 and (4y)4 + (2y)3
dem82 [27]

Answer:

y^2

Step-by-step explanation:

2y^3 + y^2 and 4y^4 + 2y^3

2y^3 + y^2......factor out y^2

y^2(2y + 1)

4y^4 + 2y^3...factor out y^2

y^2(4y^2 + 2y)

I would normally factor out 2y^3 out of this one...but u cant do it in the other one...the only common factor is gonna be y^2

the common factor is y^2 <===

4 0
3 years ago
Read 2 more answers
Graph y = 3x - 3 and label the x- and y-intercepts. My answer: (0,3)
Lesechka [4]
The slope-intercept form of the linear function is y = m x + b , where m is the slope and b is y-intercept.
Here we have: y = 3 x - 3
a ) When y = 0
0 = 3 x - 3
- 3 x  = - 3
x = ( - 3 ) : ( - 3 ) 
x = 1
When x = 0
y = 3 * 0 - 3 
y = - 3
So x - intercept is ( 1, 0 ) and y-intercept is ( 0, - 3 ).
b ) The slope:
m = ( y2 - y1) / ( x2 - x1 ) = 
= ( - 3 - 3 ) / ( 5- 7 ) = ( - 6 ) /( - 2 ) = 6 / 2 = 3
Answer: The slope m = 3 . 
5 0
3 years ago
Question 72 true or false
nalin [4]

Answer:

True

m∠T = 40.4°

Step-by-step explanation:

We know all the sides of the triangle but we do not know any of its angles.

To find out if the angle T = 40.4 ° we use the cosine theorem.

According to the cosine theorem:

c^2=a^2 +b^2-2abcos(\alpha)

Where \alpha is the angle between a and b.

In this case:

\alpha = T\\\\a= 11\\\\b=13\\\\c= 8.5

Then we clear α from the formula and verify that it is equal to 40.4 °

8.5^2 =11^2 + 13^2 -2(11)(13)cos(\alpha)\\\\8.5^2 -11^2 - 13^2= -2(11)(13)cos(\alpha)\\\\-8.5^2 +11^2 + 13^2= 2(11)(13)cos(\alpha)\\\\\frac{-8.5^2 +11^2 + 13^2}{2(11)(13)}=cos(\alpha)\\\\\alpha=arcos(\frac{-8.5^2 +11^2 + 13^2}{2(11)(13)})\\\\\alpha = 40.4\° =T

6 0
3 years ago
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