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3 years ago

What is the value of log 43? Use the calculator. Round your answer to the nearest tenth.

Mathematics

2 answers:

9966 [12]3 years ago

7 1

The answer is: 1.5, meaning 43 is approximately 10^1.5.

Bess [88]3 years ago

5 0

The answer to your question is 1.6

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Right triangles abc and dbc with right angle c are given below. If cos(a)=15,ab=12 and cd=2, find the length of bd.

dmitriy555 [2]

see the attached figure to better understand the problem

we have that

$cos(A)=\frac{1}{5} \\ AB=12\ units\\ CD=2\ units$

Step 1

Find the value of AC

we know that

in the right triangle ABC

$cos (A)=(AC/AB)\\AC=AB*cos(A)$

substitute the values in the formula

$AC=12*(1/5)\\ AC=2.4\ units$

Step 2

Find the value of BC

we know that

in the right triangle ABC

Applying the Pythagorean Theorem

$AB^{2} =AC^{2}+BC^{2}\\ BC^{2}=AB^{2} -AC^{2}$

substitute the values

$BC^{2}=12^{2} -2.4^{2}\\BC^{2}= 138.24\\ BC=11.76\ units$

Step 3

Find the value of BD

we know that

in the right triangle BCD

Applying the Pythagorean Theorem

$BD^{2} =DC^{2}+BC^{2}$

substitute the values

$BD^{2} =2^{2}+11.76^{2}$

$BD=11.93\ units$

therefore

the answer is

the length of BD is 11.93 units

8 0

3 years ago

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Please solve, due tomorrow!

Darya [45]

5x=25 X= 5
X/3=7 X= 21
2x=14 X= 7
x/2=12 X=6
x/4=6 X=24

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3 years ago

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attashe74 [19]

The exponential parent function is D

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In the equation 4x+5y=20 what is the y value that solves the equation when x=5? Show your work

Leya [2.2K]

Answer:

4(5)+5y=20 20+5y=20 then subtract the 20 with other 20= 0

5y/5=0/5 y=0

Step-by-step explanation:

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AveGali [126]

Wide is 5 x 5 = 25 feet;
P = 2 x width + 2 x wide = 10 + 50 = 60 feet;

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3 years ago