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3 years ago

If a man falls and breaks his spine do you

Mathematics

1 answer:

pochemuha3 years ago

4 0

Oh My Gosh!

My best choice is A.

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= The average score of Karl's first four math tests is 72 points. After the fifth and the sixth tests, his average score increas

mylen [45]

Answer:

83 points

Step-by-step explanation:

-The formula for average is given as:

$\bar X=\frac{1}{n}\sum{x_i}\\\\x_i=Individual \ Test \ scores\\n=number \ of \ scores$

Let a be his 5th score and (a+4) of the 6th

#We subtract the sum of the first 4 tests from the 6, to get the sum of the 5th and 6th tests:

$(6^{th}+5^{th})=\bar X n_6-\bar X n_4\\\\=75\times 6-72\times 4\\\\=162$

#We substitute for the 5th and 6th to solve a:

$5^{th}=a\\6^{th}=a+4\\\\a+(a+4)=162\\\\2a=158\\\\a=79\\\\6^{th}=a+4=79+4=83$

Hence, Karl score 83 points in his 6th test.

5 0

4 years ago

How many solutions does the following equation have?

Evgesh-ka [11]

Answer:

no solution

Step-by-step explanation:

There are no values of x that make the equation true.

No solution

6 0

3 years ago

A rectangle has sides measuring (4x + 5) units and (3x + 10) units.

grin007 [14]

Answer:

The area is just length times width: (4x+5)(3x+10)=12x2+55x+50.

Step-by-step explanation:

5 0

3 years ago

Find the surface area of the cone whose radius and height are 2cm and 4cm respectively

Mademuasel [1]

Answer: Surface area of the cone is 40.85cm^2

Step-by-step explanation:

8 0

3 years ago

Which equation would determine the value of angle a

Burka [1]

Step-by-step explanation:

$\cos A \: = \frac{8}{17} \\ \\ \red{ \bold{\therefore \: 17 \: \cos A = 8}} \\ is \: the \: required \: equation.$

4 0

3 years ago