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timurjin [86]
3 years ago
13

✓

20%7D%20%20%3D%205" id="TexFormula1" title=" \sqrt{19 + \sqrt{30 + \sqrt{32 + x } } } = 5" alt=" \sqrt{19 + \sqrt{30 + \sqrt{32 + x } } } = 5" align="absmiddle" class="latex-formula">
can someone please solve this​
Mathematics
1 answer:
Setler79 [48]3 years ago
8 0

We'll have to repeatedly square both sides of the equation, in order to get rid of the square roots. Squaring a first time yields

19+\sqrt{30+\sqrt{32+x}}=25

Move the 19 to the right hand side:

\sqrt{30+\sqrt{32+x}}=6

And square again:

30+\sqrt{32+x}=36 \iff \sqrt{32+x}=6

Square one last time:

32+x=36 \iff x=36-32=4

Let's check the solutions: all these squaring might have created external solutions:

\sqrt{19+\sqrt{30+\sqrt{32+4}}}=\sqrt{19+\sqrt{30+6}}=\sqrt{19+6}=\sqrt{25}=5

So, x=4 is a feasible solution.

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The function f(x) = (10)–x is reflected across the x-axis to create the function g(x). Which ordered pair is on g(x)? (–2, 75) (
IRINA_888 [86]
Neither point is on either function.
f(x) reflected over the x-axis is
y=-10 + x
7 0
3 years ago
It is believed that 36% of the US population has never been married, 32% are divorced, 27% are married, and 5% are widowed. You
Katena32 [7]

Answer: the smallest number of people required for the sample to meet the conditions for performing inference is 100

Step-by-step explanation:

Given that;

36% of US population has never been married

32% are divorced

27% are married

5% are widowed

Taking a simple random sample of individuals to test this claim;

we need expected count in each cell to be at least 5, here the smallest proportion is 5% = 0.05

so we only need to satisfy condition for its expected count;

n × 0.05 ≥ 5

n = 5 / 0.05 = 100

Therefore the smallest number of people required for the sample to meet the conditions for performing inference is 100

6 0
3 years ago
Can somebody help me first answer gets brainiest pls help
damaskus [11]
Answer: I believe the answer is 216 Square units.

Explanation:
1. Cut the shape in half. Now you have a square and a triangular shape.

2. The square is 12 inches on all four sides. 12 • 12 = 144. 144 is the area for the square.

3. Now, the triangular shape. The bottom of the shape is 12 because we divided the total 24 in half with the square. The left side (the longer side) of the shape is also 12 because it is parallel to the square with 12 as the same measurement. The right side (the shorter side) of the shape is 6 because it's half the size of the square’s length. The length of the top of the shape is also 12 because it is half of the square’s width of 24.

4. Now that we have found the measurements of the triangular shape, we can multiply (length • width) and add. The square is 144 units (12•12=144) and the triangular shape is 72 (12•6=72). 144 + 72= 216.

I hope this helps! :)
6 0
3 years ago
Plz help asap!!!!!!!!!!!!!!!!!!!
borishaifa [10]

Answer:

A) 0.685

Step-by-step explanation:

P(no snow) = 1 - P(snow)

1 - 0.315

0.685

8 0
3 years ago
Can you help please?!
IrinaK [193]
For the first one, its 86 square in, and the second one is 45 square cm.
6 0
4 years ago
Read 2 more answers
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