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3 years ago

P=2a+2b , solve for b

Mathematics

1 answer:

sashaice [31]3 years ago

3 0

P = 2A + 2B (subtract 2A on both sides)

P - 2A = 2B (divide by 2 on both sides)

P/2 - 2A/2 = B

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Which expression is equal to 16.25 ÷ 2.5?

kirza4 [7]

6.5 is the answer to your question

6 0

3 years ago

Solve x2 + 1/2x +1/16=4/9

kolezko [41]

Answer:

x = 0.417 or x = -0.917

Step-by-step explanation:

We are given the following expression and we are to solve it for the variable x:

$x ^2 + \frac { 1 } { 2 } x + \frac { 1 } { 1 6 } = \frac { 4 } { 9 }$

We will find the least common multiple of 2. 6 and 9:

$x^2 \times 144 +\frac{1}{2}x \times 144 +\frac{1}{16} \times 144 = \frac{4}{9} \times 144$

Simplifying it to get:

$144x^2+72x+9=64$

$144x^2+72x+9-64=0$

$144x^2+72x-55=0$

Using the quadratic formula to solve for x:

$x=\frac{-b \pm\sqrt{b^2-4ac} }{2a}$

$x=\frac{-72 \pm\sqrt{72^2-4(144)(-55)} }{2a}$

$x=\frac{5}{12}$ or $0.417$

$x=-\frac{11}{12}$ or $-0.917$

3 0

3 years ago

Can someone pls help??

ch4aika [34]

Answer:

No. A = 32 square units B= 42 square units

Explanation:

When finding the area of composite figures, add the area of each figure.

5 0

3 years ago

Simplify (6^-4)^6 Please help me

shutvik [7]

Answer:

6^ -24

Step-by-step explanation:

We know that a^b^c = a^ (b*c)

(6^-4)^6 = 6^ (-4*6) = 6^ -24

7 0

4 years ago

Find sin(a) in the triangle. Choose 1 answer:

Studentka2010 [4]

Answer:

5/13

Step-by-step explanation:

Find the diagram to the question attached

Given the following considering angle A

Hypotenuse = 13 = AB

Opposite = 5 (side facing the angle A) = BC

Adjacent = 12

According to SOH CAH TOA;

Sin theta = opposite/hypotenuse

Sin(a) = BC/AB

Sin(a) = 5/13

Hence the value of sin(a) is 5/13

3 0

3 years ago