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3 years ago

Solve k 12/7=k/8 k=

Mathematics

2 answers:

leva [86]3 years ago

5 0

Answer:

K = 13 5/7

Step-by-step explanation:

12/7 = k/8

96 = 7k

7k = 96

K = 96/7

K = 13 5/7

Inessa05 [86]3 years ago

4 0

Look at the attached picture

Hope it will be helpful to you....

Good luck on your assignment

~pragya

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trapecia [35]

Answer:

The radius is 10

Step-by-step explanation:

Given

$x^2 + y^2 + 21 = 40 + 18y.$

Required

The radius

Rewrite as:

$x^2 + y^2 - 18y = 40-21$

Subtract 81 from both sides

$x^2 + y^2 - 18y +81= 40-21+81$

Expand

$x^2 + y^2 - 9y - 9y +81= 40-21+81$

Factorize

$x^2 + y( y- 9) - 9(y -9)= 40-21+81$

Factor out y - 9

$x^2 + (y- 9) (y -9)= 40-21+81$

Express as squares

$x^2 + (y- 9)^2= 100$

$x^2 + (y- 9)= 10^2$

The equation of a circle is:

$(x - a)^2 + (y- b)= r^2$

By comparison:

$r^2=10^2$

$r = 10$

6 0

3 years ago

Write an expression that can be used to find 4x275 using mental math and properties of numbers

Mashutka [201]

(4*200)+(4*70)+(4*5)
Hope this helps

7 0

3 years ago

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Which expression is equivalent to x^5 • x^2?

pashok25 [27]

Answer: x⁷

Step-by-step explanation:

distributive property: a(b+c)=ab+ac

add by exponent rule.

x⁵⁺²=x⁷

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Hope this helps!

Thanks!

Have a great day!

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3 years ago

some students checked 6 random bags of doritos marked with net weight of 28.7 grams.is their evidence showing mean net weight is

lawyer [7]

Answer:

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Step-by-step explanation:

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3 years ago

Find the side length

BARSIC [14]

Answer:

area of square=side²

36/49yd²=side²

(36/49yd²)²=side

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3 years ago

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