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2 years ago

Solve for x. Leave your answer in simplest radical form

Mathematics

2 answers:

vlada-n [284]2 years ago

7 0

Answer:

this is my answer

5.29

Step-by-step explanation:

Hope this helps

alexandr1967 [171]2 years ago

5 0

Answer:

x = 2√7

using Pythagoras theorem:

7² + ?² = 9²

?² = 81 - 49

? = √32

? = 4√2

For the bottom part:

x² + 2² = (4√2)²

x² + 4 = 32

x² = 28

x = √28

x = 2√7

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Ymorist [56]

Answer:

First Question

lower limit of 9 mph $j = 8.5 \ mph$

upper limit of 9 mph $q = 9.5 \ mph$

Second Question

lower limit of 120 pounds is $i = 119.9 \ pounds$

upper limit of 120 pounds is $l = 120.1 \ pounds$

Third Question

lower limit of 187 pounds is $a = 186.75 \ pounds$

upper limit of 187 pounds is $b = 187.25 \ pounds$

Step-by-step explanation:

From the question we are told that

The amount of beer administered is three 12-ounce beers

The amount of coffee administered is two cups of coffee

The speed limit is 60-mph

The smallest unit of scale is 1 mph

The first subject scores 9 mph

Generally given that the smallest unit of scale is 1 mph then the deviation of 9 mph will be by $\frac{1}{2} \ mph$

Hence the lower limit of 9 mph is

$j = 9 - 0.5$

$j = 8.5 \ mph$

And the upper limit of 9 mph is

$q = 9 + 0.5$

$q = 9.5 \ mph$

Generally given that the measuring weight on a scale that is accurate to the nearest 0.2 pound then 120 pounds will deviate by $\frac{1}{0.2} \ pounds$

Hence the lower limit of 120 pounds is

$i = 120 - 0.1$

$i = 119.9 \ pounds$

And the upper limit of 120 pounds is

$l = 120 + 0.1$

$l = 120.1 \ pounds$

Generally given that the measuring weight on a scale that is accurate to the nearest 0.5 pound then 187 pounds will deviate by $\frac{1}{0.5} \ pounds = 0.25 \ pounds$

Hence the lower limit of 120 pounds is

$a = 187 - 0.25$

$a = 186.75 \ pounds$

And the upper limit of 120 pounds is

$b = 187 + 0.25$

$b = 187.25 \ pounds$

5 0

4 years ago

Statistics question, please help.

Leto [7]

Answer will be C y=-x+6
Why?
The line or scatterpoints are going down from left to right which means it is a negative slope
As you can see one point is at 1,5 and the other is at 0,6 which means the slope goes down by 1
Giving you -x
What is the y intercept?? It is 6 so that completes the line equation
Y=-x+6 hope that helps

8 0

3 years ago

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Measure the angle below. <br> (Had to block out alot of things

Annette [7]

Answer:

280 degrees

Step-by-step explanation:

7 0

3 years ago

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Cube is 27 cubic centimeters what is the area of each face

jarptica [38.1K]

Volume of a cube is side^3
therefor
v=27
27=side^3
what^3=27?
factor 27
27=3 times 3 times 3=3^3
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3^3=side^3
cube roo bth sides
3=side

3 cm is on side
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area=3^2
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8 0

3 years ago

How many distinct triangles can be formed for which m∠X = 51°, x = 5, and y = 2? zero one two

Vitek1552 [10]

From the law of sines, we have:

$\displaystyle{ \frac{\sin \angle X}{x}= \frac{\sin \angle Y}{y}$ ,

where x and y are the sides opposite to angles X and Y, respectively.

Substituting the known values, we have:

$\displaystyle{ \frac{51^{\circ}}{5}= \frac{\sin \angle Y}{2}$ , thus

$\displaystyle{ \sin \angle Y=\frac{\sin 51^{\circ}}{5}\cdot2\approx \frac{0.777}{5}\cdot2=0.31$ .

Using a calculator, we can find that arcsin(0.31)=18 degrees, approximately.

We know that sine of (180-18)=162 degrees is also 0.31. But 162 and 51 degrees add up to more than 180 degrees.

Thus, there is only one triangle that can be formed under these conditions.

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3 years ago

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