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maks197457 [2]
2 years ago
11

What is the length of ED

Mathematics
1 answer:
STALIN [3.7K]2 years ago
4 0

Answer:

ED ≈ 2.6 units

Step-by-step explanation:

Using the Sine rule in Δ DEF

\frac{FD}{sin115} = \frac{ED}{sin20}

\frac{6.95}{sin115} = \frac{ED}{sin20} ( cross- multiply )

ED sin115° = 6.95 sin20° ( divide both sides by sin115° )

ED = \frac{6.95sin20}{sin115} ≈ 2.6 ( to the nearest tenth )

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What is a reasonable distance between two cities? A. 200 km B. 200 m C. 200 cm D. 200 mm
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Answer:

200 KM  about 124 miles

Step-by-step explanation:

200 m is only 0.12 miles

200 cm is 78 inches

200 mm is 20 cm or 7.8 inches

6 0
3 years ago
2x + 3 =-7 <br> Match equation to its solution
Blizzard [7]

Answer:

X= -5

Step-by-step explanation:

  1. You must move all constants to one side of the equation (one side of the equal sign) and away from 2x. To do so, you must do the inverse operation, which would be subtraction in this case because 3 is a positive number. (Inverse of addition is subtraction, Inverse of subtraction is addition, Inverse of multiplication is division, and inverse of division is multiplication) If you squish a constant and variable together (2x) it means multiplication.
  2. What you must do to one side, you must do to the other. So, since you subtracted 3 from the 3, you must subtract 3 from -7, too(subtracting from a negative is just addition- but you keep the negative sign). Once this is done, your equation will be 2x=-10
  3. Now, you must do the inverse operation to 2x to separate the 2. The inverse operation will be division. So, you divide both sides by 2. 2x divided by 2 will give you x. -10 divided by 2 will give you -5. (When you divided negative and positive numbers, the signs are different, meaning it's negative. If they had the same sign, it would be positive.)
  4. Therefore, your answer is x= -5

Hope I helped! :)

Sorry about the whole dang essay lol

3 0
2 years ago
Read 2 more answers
A bag of walnuts sells for$1.95 Estimate the cost of 8 bags of walnut
Alborosie

Answer:

$15.6

Step-by-step explanation:

one bag= $1.95

8 bags = 8×1.95=15.6

so answer is $15.6.

4 0
3 years ago
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Translate this sentence into an equation. The product of Rita's savings and 9 is 153. Use the variable r to represent Rita's sav
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The equation: 9r = 153
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3 years ago
A 5-pound box of raspberries costs $27.20. What is the price per ounce?<br> $
ASHA 777 [7]

Answer:

$0.34 per ounce

Step-by-step explanation:

A 5 pound box can be changed to ounces. There are 16 ounces in a pound. So we have 5 groups of 16.

5 × 16 is 80 ounces.

There are 80 ounces in 5lbs.

To get a price per ounces, divide.

dollars/ounces

= 27.20/80

= 0.34 dollars/oz.

This is 34cents per ounce.

6 0
2 years ago
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