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Tanya [424]
3 years ago
5

I want to know what is the answer to this?

Mathematics
1 answer:
nevsk [136]3 years ago
4 0

Answer:

x = 1.5\sqrt{14}

Step-by-step explanation:

since the triangle is right we can use the trig. ratio sine to solve

sin 45° = \frac{opposite}{hypotenuse} = \frac{1.5\sqrt{7} }{x}

multiply both sides by x

x sin45° = 1.5\sqrt{7}

using sin45° = \frac{1}{\sqrt{2} }, then

x ×\frac{1}{\sqrt{2} } = 1.5\sqrt{7}

multiply both sides by \sqrt{2}

x = 1.5\sqrt{7} ×\sqrt{2} = 1.5\sqrt{14}


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Round to the nearest hundredth
Snezhnost [94]

Answer: 0.14

Step-by-step explanation:

5 / (25+5+5)

8 0
3 years ago
If n is an integer, which conjecture is not true about 2n– 1? A. 2n– 1 is odd if n is positive. B. 2n– 1 is always even. C. 2n–
VladimirAG [237]
B.



Let's simply look at each conjecture and determine if it's true or false.



A. 2n– 1 is odd if n is positive: Since n is an integer, 2n will always be even. And an even number minus 1 is always odd. Doesn't matter if n is positive or not. So this conjecture is true.



B. 2n– 1 is always even: Once again, 2n will always be even. So 2n-1 will always be odd. This conjecture is false.



C. 2n– 1 is odd if n is even: 2n is always even, so 2n-1 will always be odd, regardless of what n is. So this conjecture is true.



D. 2n– 1 is always odd: 2n will always be even. So 2n-1 will always be odd. Once again, this conjecture is true.



Of the 4 conjectures above, only conjecture B is false. So the answer is B.
6 0
3 years ago
What is the midpoint of (-7,-9) (6,3)
Advocard [28]

Answer :

Let the first term of both the terms be \:  \sf \: x _1 \:  \: \& \:  \: x _2 and last term be \:  \sf \: y _1 \:  \: \& \:  \: y_2\\

Now, by using the mid point formula to find the mid point of the segment -

\\   \sf \bigg( \frac{x_1 + x_2}{2} , \:  \frac{y_1 + y_2}{2}  \bigg) \\

Now, by substituting the values of both x and y -

\\  \sf \bigg( \frac{ - 7 + 6}{2} , \:   \frac{ - 9 + 3}{2}  \bigg) \\

Adding -7 and 6 -

\\  \sf \bigg( \frac{ - 1}{2} , \frac{ - 9 + 3}{2}  \bigg) \\

Now, move the negative in front of the fraction -

\\  \sf \bigg( \frac{ - 1}{2} , \frac{ - 6}{2}  \bigg) \\  \\  \\  \sf \bigg( \frac{ - 1}{2} , - 3\bigg) \\

6 0
3 years ago
SIMPLE! 30 POINTS AND I WILL GIVE BRAINLIEST
Serhud [2]
SOLUTION:

To begin with, let's establish the problem as the following:

5 + 7

An effective method to solve this problem would be to convert it into a visual representation in order to obtain a better understanding.

As attached in the diagram above, I have demonstrated the problem visually. The five red circles / dots represent the five in the problem whilst the 7 circles / dots represent the 7 in the problem. Now we must simply count each of the circles / dots to obtain the total number which would be our final answer.

We can also simply use our fingers on our hands to solve the problem by counting 5 on our fingers and then adding 7 or vice versa to obtain the final answer.

FINAL ANSWER:

Hence, through either of these two methods, we obtain the final answer to the problem as follows:

5 + 7 = 12

Hope this helps! :)
Have a lovely day! <3

4 0
3 years ago
Read 2 more answers
Is this relation a function? {(2, 5), (3, 8), (4, 6), (7, 20)} Yes No
SVEN [57.7K]
Yes the x values are all different, if two were the same then it would not be one but in this case it is
4 0
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