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3 years ago

Do top two question please

Mathematics

2 answers:

Mnenie [13.5K]3 years ago

5 0

Number 26 is 60°, because angles on a straight line and in a triangle add to 180°

Stolb23 [73]3 years ago

3 0

The second one, #27, the answer is 47.5 liters

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Triangle DEF is an isosceles, so AngleDEF Is-congruent-toAngleDFE. A horizontal line has points C, F, E, G. 2 lines extend from

zaharov [31]

Answer:

$\angle CFD =105^o$

Step-by-step explanation:

Given

$\angle D FE = \angle DE F = 75^o$

See attachment

Required

Determine the measure of $\angle CFD$

$\angle CFD$ and $\angle DFE$ are on a straight line.

So:

$\angle CFD + \angle DFE = 180^o$ --- angle on a straight line

Substitute known values

$\angle CFD + 75^o = 180^o$

Collect like terms

$\angle CFD =- 75^o + 180^o$

$\angle CFD =105^o$

5 0

3 years ago

Read 2 more answers

PLEASE HELP!! What is it? Disagree or agreee

Studentka2010 [4]

Answer:

i would disagree

3 0

3 years ago

Read 2 more answers

The sum of 1/3 and twice a number is equal to 2/3 subtracted from three the number.find the number

Zigmanuir [339]

The number = y

2y + 1/3 = 2/3 - 3y
(add 3y to both sides)
5y + 1/3 = 2/3
(subtract 1/3 from both sides to isolate y)
5y = 1/3
(divide by 5)
y = 1/15

4 0

3 years ago

How far apart are cities A and B in the new map?

Lubov Fominskaja [6]

Answer:

22.5 miles

Step-by-step explanation:

If 2 inches equal 15 miles then 1 mile equals 7.5 miles. 15/2=7.5

7.5 x 3=22.5 miles.

5 0

3 years ago

In 2000 the number of students enrolled at Arlington County day school was 823 students in 2010 the population was approximately

RoseWind [281]

Answer:

enrollment decreases by 14.34%.

Step-by-step explanation:

Given that number of students enrolled in 2000 = 823

Given that number of students enrolled in 2010 = 705

705 is less than 823 so that means number of students enrollment is decreasing.

Decrease = 823-705 = 118

Percent decrease is given by formula:

$Percent =\frac{part}{whole}\cdot100 =\frac{118}{823}\cdot100= 14.3377885784$

which is approx 14.34%.

Hence final answer is that enrollment decreases by 14.34%

5 0

3 years ago