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Naily [24]
3 years ago
13

Please answer this question now

Mathematics
1 answer:
Lapatulllka [165]3 years ago
5 0

Answer:

<h2>u = 9.7</h2>

Step-by-step explanation:

Opposite =u\\Hypotenuse = 12\\Adjacent = 7\\Using\: Pythagoras \: Theorem\\Hypotenuse^2 = Opposite^2+Adjacent^2\\12^2= u^2+7^2\\144=u^2 +49\\144-49=u^2\\95=u^2\\\sqrt{95} =\sqrt{u^2} \\u = 9.74\\\\u = 9.7

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Is x greater than, less than, or equal to 94° ?
brilliants [131]

Answer:

equal

Step-by-step explanation:

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3 years ago
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y = 2x squared + 5x -3 can be written in the form y= 2( x+a) squared + b . Find the value of a and the value of b.
Elan Coil [88]

General vertex form:

y = m(x − a)² + b  \: with  \: vertex \:  at \:  (a, b)

Given :

y = 2x² + 5x  - 3

Extract "spread factor" m

y = 2( x² +  \frac{5}{2} x) - 3

Complete the square

y = 2(x²  +  \frac{5}{2}x + ( \frac{5}{4})²) - 3

- 2( \frac{5}{4})²

Write as a squared binomial and simplify the constant

y = 2(x +  \frac{5}{4})² - 6 \frac{1}{8}

Re-write to match signs of standard general form:

y = 2(x - ( -  \frac{5}{4}))² \:  + ( - 6 \frac{1}{8})

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2 years ago
A normal distribution has a mean of 14 and a standard deviation of 4. What percent of values are from 14 to 22?
Ivenika [448]

Answer:

80% of the values will occurs above 68.24.

Step-by-step explain

thinking this is right but im sorry if its wrong

3 0
3 years ago
2(a -3) + 4b - 2(a -b -3) + 5<br><br> A. 6b+5<br> B. 8b-2<br> C. 6b-5<br> D. No simplified answer
Bond [772]
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8 0
3 years ago
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A teacher reviews 4-1/2 papers per hour, how many papers will that teacher review in 6-1/3 hours
MrRa [10]

Answer:

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Step-by-step explanation:

step 1

Convert mixed numbers to an improper fractions

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6\frac{1}{3}=\frac{6*3+1}{3}=\frac{19}{3}

step 2

we know that

A teacher reviews 9/2 papers per hour

using proportion

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Let

x-----> the number of papers

(9/2)/1=x/(19/3)

x=(19/3)(9/2)

x=28.5\ papers

Convert to mixed numbers

28.5=28\frac{1}{2}\ papers

5 0
3 years ago
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