3 years ago

Pleaseee help I’m really not sure

Mathematics

1 answer:

Mnenie [13.5K]3 years ago

5 0

Answer:

option 4

$2 x + 3 = y$

2 (1)+3=5

2 (2)+3=5

and so on and so on

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Lorinda has 10 books on her bookshelf. 6 of these books have blue covers, and 4 have red covers.

crimeas [40]

Answer:

there is 60% chance it is blue and 50% its a fantasy one.

Step-by-step explanation:

6 out of 10 = 60%

3 out of 6 or 2 out of four is 50%

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2 years ago

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

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1 year ago

Please help me. <br><br><br>2 (a + 4) =

vitfil [10]

Answer:

2a+8

Step-by-step explanation:

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3 years ago

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James wants to buy some CDs that cost $14 each and a DVD that costs $23. He has $65. Write an equation (in the Show your work ar

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Answer:

Step-by-step explanation:

65-23= 42

42/14= 3

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3 years ago

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HELP PLEASE !!

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