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kozerog [31]
4 years ago
7

Solve log (4x+5)=2. Round to the nearest thousandth if necessary.

Mathematics
2 answers:
Eva8 [605]4 years ago
7 0
10%5E2+=+4x+%2B+5
100+=+4x+%2B+5
4x+=+95
x+=+23.75
i really need a branliest plz...
Andre45 [30]4 years ago
5 0

Answer:

The solution is x=\frac{95}{4}=23.75.

Step-by-step explanation:

To solve the equation \log _{10}\left(4x+5\right)=2.

Use the logarithmic definition: \mathrm{If}\:\log _a\left(b\right)=c\:\mathrm{then}\:b=a^c

\log _{10}\left(4x+5\right)=2\quad \Rightarrow \quad \:4x+5=10^2

Simplify

4x+5=100

Next, solve for x

4x+5-5=100-5\\4x=95\\\frac{4x}{4}=\frac{95}{4}\\x=\frac{95}{4}

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In triangle ABC, AB = 90 in., BC = 80 in., and angle B measures 50°. What is the approximate perimeter of the triangle?
Monica [59]

Answer:

The answer to your question is Perimeter = 287.3 in

Step-by-step explanation:

AB = 90 in

BC = 80 in

∠B = 50

Perimeter = ?

Process

1.- We need to find AC using Law of sines

\frac{sin A}{80} = \frac{sin 50}{90}

       sin A = \frac{80}{90} sin 50

       sin A = 0.68

              A = 42.9 ≈ 43

The sum of the internal angles in a triangle equals 180°

       A + B + C = 180°

       43 + B + 50 = 180

       B = 180 - 43 - 50

       B = 87°

\frac{AC}{Sin 87} = \frac{90}{sin 50}

AC = 90 \frac{sin 87}{sin 50}

      AC = 117.3

2.- Find the perimeter

     Perimeter = AB + BC + AC

     Perimeter = 90 + 80 + 117.3

     Perimeter = 287.3 in

5 0
3 years ago
Read 2 more answers
Anyone know the answer i don’t need the steps or the work just the answer. ty!
NeX [460]

Answer:

= x^4 y^5 / 3

Step-by-step explanation:

I got this answer  = x^4 y^5 / 3

But my answer is not found directly

And I think they deliberately set up this arrangement to make us mess up

, but in your Options I think it's ( B )

7 0
3 years ago
If "f" varies directly with "m," and f=-19 when m=14, what is "f" when m=2?if
pashok25 [27]

Answer:-19/7

Step-by-step explanation:

f varies directly as m

f=k x m

When f=-19,m=14

-19=k x 14

k=-19/14

Relationship is f=-19m/14

When m is 2

f=(-19x2) ➗ 14

f=-38 ➗ 14

f=-19/7

8 0
4 years ago
A driver works 40 hours a week for the first two months
kakasveta [241]
Not sure but you can figure it out.
7 0
3 years ago
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Saravan has a bushel basket of apples to sell at his fruit stand. 2 out of every 10 cannot be sold because they are not ripe yet
tigry1 [53]

Answer:

80 percent

Step-by-step explanation:

2 out of 10  

the ten has to be turned into 100 to make it a percentage. so 10 times 10 is 100 and 2 also has to be multiplied by 10 which is 20. 100-20 is 80 which means 80 percent of his apples arent ripe.

7 0
3 years ago
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