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3 years ago

PLEASE HELP!!!!!!!! Just all of 2 and 4 PLEASE

Mathematics

1 answer:

alukav5142 [94]3 years ago

6 0

Answer: question 2 b = $3.5992

question 2 c = $48.5892 or you can write $48.58

thats how much i know i dont know about the rest sorry

i will try them out and come back to you if i find an answer

Step-by-step explanation:

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MN and KL are parallel. If JM = 7, MK = 21, and LN = 24, what is NJ? A. 8 B. 3 C. 10 D. 16

Reil [10]

We have from Thales theorem that because the 2 triangles are similar, JM/JK=JN/JL. We have that JN=x, JL=x+24 and that JM=7 and JK=28. Substituting, we get:
x/(x+24)=7/28.
Hence, x/(x+24)=1/4. This leads to 4x=x+24, 3x=24, x=8. We have solved for x=JN and this is equal to 8.

4 0

3 years ago

Read 2 more answers

Which logarithmic equation is equivalent to the exponential equation below?

aleksandr82 [10.1K]

Option B: $\ln 6=5 x$ is the correct answer.

Explanation:

The exponential equation is $e^{5 x}=6$

If $f(x)=g(x)$ , then $\ln (f(x))=\ln (g(x))$

Thus, the equation becomes

$\ln \left(e^{5 x}\right)=\ln (6)$

Applying log rule, $\log _{a}\left(x^{b}\right)=b \cdot \log _{a}(x)$ and thus the equation becomes

$5 x \ln (e)=\ln (6)$

Since, we know that, $\ln (e)=1$ , using this we get,

$5 x=\ln (6)$

Hence, the logarithmic equation which is equivalent to the exponential equation $e^{5 x}=6$ is $\ln 6=5 x$

Thus, Option B is the correct answer.

7 0

3 years ago

Plz help with these 3:)

saul85 [17]

Answer: 1) 2

2) 7/10

3) -1/3

4 0

3 years ago

A holiday decoration involves blue and white lights the ratio of blue lights to white lights is three to two the box the decorat

Westkost [7]

Answer:

Step-by-step explanation:

4 0

3 years ago

Wegnerkolmp or someone who can explain maths please<br> I need a proper explanation

umka2103 [35]

Answer: 66 degrees

Explanation:

Check out the attached image below. Figure 1 is the original image without any additions or alterations. Then in figure 2, I extend segment BC to form a line going infinitely in both directions. This line crosses segment DE at point F as shown in the second figure.

Note how angles ABC and DFC are alternate interior angles. Because AB is parallel to DE (given by the arrow markers) this means angle DFC is also 24 degrees

Focus on triangle DFC. This is a right triangle. The 90 degree angle is at C.

So we know that the acute angles x and 24 are complementary. They add to 90. Solve for x

x+24 = 90

x+24-24 = 90-24

x = 66

That is why angle CDE is 66 degrees

6 0

3 years ago