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3 years ago

How do I find the measurement of angle A with 85, 10x, and 8x + 5?

Mathematics

2 answers:

Scrat [10]3 years ago

7 0

The angle A with 85, 10x is a 1345

Nookie1986 [14]3 years ago

3 0

Answer:

angle a is 45 degrees

Step-by-step explanation:

triangle total angles must add up to 180

angle a: 8x+5

angle 2: 85

angle 3: 10x

8x+5+85+10x=180

simplify

18x+90=180

subtract 90

18x=90

divide by 18

x=5

plug in x to angle a

8*5+5=45

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Answer:

A=-8b/9

Step-by-step explanation:

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3 years ago

I'll give you brainliest! Just need help with 5-10! (Least common factors)

umka2103 [35]

Answer:

Step-by-step explanation:

$12,\:30\\\\\mathrm{Prime\:factorization\:of\:}12:\quad 2\times\:2\times\:3\\\mathrm{Prime\:factorization\:of\:}30:\quad 2\times\:3\times\:5\\\\=2\times\:2\times\:3\times\:5\\\\=60$

$6,\:10\\\\\mathrm{Prime\:factorization\:of\:}6:\quad 2\times\:3\\\mathrm{Prime\:factorization\:of\:}10:\quad 2\times \:5\\\\=2\times \:3\times \:5\\\\=30$

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$14,21\\\\\mathrm{Prime\:factorization\:of\:}14:\quad 2\times\:7\\\mathrm{Prime\:factorization\:of\:}21:\quad 3\times\:7\\\\=2\times\:7\times\:3\\\\=42$

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3 years ago

If 818=8,707=5,452=2,1247=?

kozerog [31]

Answer:

the answer is(5)

Step-by-step explanation:

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3 years ago

(3x + 10y 2-20<br> { 3x + 2y > 4

dmitriy555 [2]

Answer:

Multiply each equation by the value that makes the coefficients of

opposite.

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Step-by-step explanation:

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4 years ago

Find the dimensions of the rectangle with area 256 square inches that has minimum perimeter, and then find the minimum perimeter

mezya [45]

Answer:

Dimensions: $A=a\cdot b=256$

Perimiter: $P=2a+2b$

Minimum perimeter: [16,16]

Step-by-step explanation:

This is a problem of optimization with constraints.

We can define the rectangle with two sides of size "a" and two sides of size "b".

The area of the rectangle can be defined then as:

$A=a\cdot b=256$

This is the constraint.

To simplify and as we have only one constraint and two variables, we can express a in function of b as:

$b=\frac{256}{a}$

The function we want to optimize is the diameter.

We can express the diameter as:

$P=2a+2b=2a+2*\frac{256}{a}$

To optimize we can derive the function and equal to zero.

$dP/da=2+2\cdot (-1)\cdot\frac{256}{a^2}=0\\\\\frac{512}{a^2}=2\\\\a=\sqrt{512/2}= \sqrt {256} =16\\\\b=256/a=256/16=16$

The minimum perimiter happens when both sides are of size 16 (a square).

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3 years ago