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2 years ago

Find the value of each variable in the parallelogram.

Mathematics

1 answer:

lawyer [7]2 years ago

3 0

Answer:

b=10

C=99

D=140

Step-by-step explanation:

because it’s a parallelogram

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Make x the subject of the formula for Q20.

saul85 [17]

Answer:

$x = \sqrt{m(\frac{a}{b})^{2} +n }$

Step-by-step explanation:

$a\sqrt{(\frac{x^{2} - n }{m}) } = \frac{a^{2} }{b}$

$\sqrt{\frac{x^{2} - n }{m} } = \frac{a}{b}$ [Divide both sides by $a$ ]

$\frac{x^{2} - n}{m} = (\frac{a}{b} )^{2}$ [Square both sides]

$x^{2} -n = m(\frac{a}{b} )^{2}$ [Multiply both sides by m]

$x^{2} =m(\frac{a}{b} )^{2} + n$ [Bring n to the right]

$x = \sqrt{m(\frac{a}{b})^{2} +n }$ [Square root both sides]

7 0

4 years ago

A composite number cannot have three factors

omeli [17]

3,5,7,9 i think thos is right

7 0

3 years ago

If m∠A = m∠B and m∠A + m∠C = m∠D, then<br> m∠B + m∠C = m∠D.

just olya [345]

Answer:

True. The statement is also equivalent to: If m<B + m<C does not equal m<D, then m<A does not equal m<B and m<A + m<C is not equal to m<D.

8 0

3 years ago

Solve the logarithmic equation for x.

aev [14]

Answer:

x = 2 or x = 4

Step-by-step explanation:

Solve: 2 log x = log 2 + log(3x - 4)

log (x^2) = log 2 + log (3x - 4)

log (x^2) = log [2*(3x - 4)]

x^2 = 2*(3x - 4)

x^2 = 6x - 8

x^2 - 6x + 8 = 0

factor:

(x - 2 )(x - 4) = 0

x = 2 or x = 4

4 0

3 years ago

Help please within the next hour

olasank [31]

c. 9

To complete the square, you take half of the coefficient of b and square it. It's important to note that the value being added will always be positive.

${ax}^{2} + bx + c$

$b = - 6$

$- 6 \div 2 = - 3$

$= {( - 3)}^{2}$

$= 9$

5 0

3 years ago