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Anastaziya [24]
3 years ago
12

Find the measure of b, given m∠A = 38o m ∠ A = 38 o , m∠B = 74o m ∠ B = 74 o and a = 31.

Mathematics
1 answer:
Stells [14]3 years ago
8 0

B is the right answer.

48.4017

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Which expressions are equivalent to <br><br> 2 ln a + 2 ln b - ln a?
ycow [4]

Answer:

Choices 2, 3, and 5  are correct.

Step-by-step explanation:

Complete question is:

Check all that apply.

1. ln ab² - ln a

2. ln a + 2 ln b  

3. ln a² + ln b² - ln a

4. 2 ln ab

5. ln ab²

ANSWER:

The given expression is : 2 ln a + 2 ln b - ln a

It simplifies to: ln a + ln b² = ln ab²

Checking the given options.

1. ln ab² - ln a   = ln (ab²)/a = ln b²

  FALSE

2. ln a + 2 ln b = ln ab²

  TRUE

3. ln a² + ln b² - ln a = ln (a²b²)/a = ln ab²

  TRUE

4. 2 ln ab = ln a²b²

  FALSE

5. ln ab²

  TRUE

4 0
3 years ago
PRETTY please help
Aleksandr [31]

Answer:

The answer is

4

−

7

)

(

+

2

)

3 0
2 years ago
Read 2 more answers
Angles U and V are supplementary angles. The ratio of their measures is 7:13 Find the measure of each angle
GREYUIT [131]
If u and v are <span>supplementary angles, then

u+v=180^{\circ}~~~~~\mathbf{(i)}


The ratio of u and v is \dfrac{7}{13}:<span>

\dfrac{u}{v}=\dfrac{7}{13}\\\\\\ u=\dfrac{7v}{13}~~~~\mathbf{(ii)}


Substitute \mathbf{(ii)} into \mathbf{(i)}:

\dfrac{7v}{13}+v=180^{\circ}\\\\\\ \left(\dfrac{7}{13}+1 \right )\cdot v=180^{\circ}\\\\\\ \left(\dfrac{7}{13}+\dfrac{13}{13} \right )\cdot v=180^{\circ}\\\\\\ \dfrac{20}{13}\cdot v=180^{\circ}\\\\\\ v=180^{\circ}\cdot \dfrac{13}{20}\\\\\\ \boxed{\begin{array}{c} v=117^{\circ} \end{array}}


From \mathbf{(i)}, we find the measure of u:

u=180^{\circ}-v\\\\ u=180^{\circ}-117^{\circ}\\\\ \boxed{\begin{array}{c} u=63^{\circ} \end{array}}

</span></span>
7 0
3 years ago
Find the midpoint of A and B where A has coordinates (8,5)<br> and B has coordinates (3, 7).
Mama L [17]

Answer:

Step-by-step explanation:

Average of x-coordinates = (8+3)/2 = 5.5

Average of y-coordinates = (5+7)/2 = 6

Midpoint at (5.5,6)

5 0
3 years ago
Tim has $250 in his account. This is $75 more than his brother Nate has in his account. Write and solve an addition equation to
BaLLatris [955]

Answer: 250+75

Step-by-step explanation:

250+75= 325

7 0
3 years ago
Read 2 more answers
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