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vivado [14]
3 years ago
15

Don't know where to start , please show steps if you do it!

Mathematics
2 answers:
Nutka1998 [239]3 years ago
6 0

Answer:

Step-by-step explanation:

\frac{EF}{DF} =sin~26\\EF=DF *sin~26\\=4.5*0.44\\\approx ~1.98

Tems11 [23]3 years ago
3 0

Answer: The length of EF is 1.98

Step-by-step explanation:

Looking at the right angle triangle DEF,

The hypotenuse is DF = 4.5

The adjacent side is DE

The opposite side is EF

The reference angle,# is 26 degrees.

To determine the length of EF, we would apply trigonometric ratio,

Sin# = opposite side/hypotenuse

Sin# is chosen because it contains the side that we want to determine and the given side. It becomes

Sin 26 = EF/4.5

Cross multiplying,

EF = 4.5Sin26 = 4.5 × 0.44 = 1.98

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What is the slope of a line that passes through points (2, 4) and (5, 8)?
Luda [366]

Answer:

4/3

Step-by-step explanation:

(4-8)/(2-5) = -4/-3 = 4/3

8 0
3 years ago
A car’s original price was $26,500. Mr. Thomas paid $19,610. What percent discount did Mr. Thomas receive on the car?
geniusboy [140]
26,500 - 19,610 = 6,890

6,890 would be your price discount, but now you'd have to find your percent discount. Make it into an equation to make things easier.

6,890/26,500 = p/100

(6,890*100)/26,500 = p

6,890*100 = 689,000

689,000/26,500 = 26

The price discount would be 26%.
4 0
3 years ago
Will mark brainlest, this is trig.
MrRa [10]

Answer:

Step-by-step explanation:

i have no idea but i thinkit is A.or D i think the kid is right with a different answer

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8 0
4 years ago
At a picnic there were 3 times as many adults as children and twice as many women as men. If there was a total of x men, women,
Dennis_Churaev [7]

Answer:

\dfrac{x}{4}

C is correct.

Step-by-step explanation:

At a picnic,

Number of adults is 3 times as number of children.

Number of women is twice as number of men.

Total number of men, women and children at the picnic be x

Let number of children be c

Let number of men be m

Let number of women be w

# Number of women is twice as number of men, w = 2m

# Number of adults is 3 times as number of children, w + m = 3c

      2m + m = 3c     (∴  w=2m )

                c = m

Total number of men, women and children at the picnic be x

∵       c + m + w = x

     m + m + 2m = x

                    4m = x

Number of men, m=\dfrac{x}{4}

Hence, The total number of men will be  \dfrac{x}{4}

5 0
3 years ago
A copy machine makes 84 copies in 3 minutes and 30 seconds. How many copies does it make per minute
lyudmila [28]

Answer:

24

Step-by-step explanation:

30 secs  = 0.5 min

thus 84 / 3.5 min = 168 / 7 = 24

5 0
3 years ago
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