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valentinak56 [21]
3 years ago
8

Given the picture, what is the length of AC? A) 4.5 B) 5 C) 7.5 D) 8

Mathematics
1 answer:
Nataly [62]3 years ago
5 0

Answer:

CD is to DE as CB is to BA

4 is to 6 as 3 is to y

1.5 is to 3 as 3 is to 4.5

AC = AB + BC

AC = AB + 3

Since AB = 4.5 then AC = 7.5

The answer is C

Step-by-step explanation:

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Find the indicated length or angle measure (to the nearest tenth).
skad [1K]

SOLUTION

Given the question in the image, the following are the solution steps to answer the question.

STEP 1: Explain the formula to use

Using the cosine rule which states that:

z^2=x^2+y^2-2xy\cos Z

STEP 2: Write the given sides

x=4,y=6,Z=41^{\circ},z=?

STEP 3: Find the value of z

\begin{gathered} By\text{ substitution,} \\ z^2=4^2+6^2-2(4)(6)\cos41 \\ z^2=16+36-48cos41 \\ z^2=52-36.22605985 \\ z^2=15.77394015 \\ z=\sqrt{15.77394015} \\ z=3.971641997 \\ z\approx4.0 \end{gathered}

Hence, the indicated length is 4.0

4 0
1 year ago
Please help! <br><br> If f (x) = 1/9 x-2 what is f^-1(x)
saw5 [17]

Answer:

Its C or the 3rd option

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Step-by-step explanation:

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4 0
3 years ago
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liraira [26]

Answer: y=3x--5

Step-by-step explanation: First simplify by distribution and lie terms to get:

y=3x-5

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3 0
3 years ago
Examine the following diagram:<br><br><br> What is the measure of ∠DBC?
gtnhenbr [62]
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