2 years ago

Help I need an explanation

Mathematics

2 answers:

shepuryov [24]2 years ago

4 0

Answer:

Step-by-step explanation:

X =75

stellarik [79]2 years ago

4 0

Answer:

180° - 105 = 75°i.e angle EFB (sum of angle in st.line)

Step-by-step explanation:

X°= angle EFB ( being corresponding angle)

Hence the value of x is 75

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Wholesale cost of a telescope: $199.50; Markup: 50%, Discount: 30%,

kupik [55]

Answer:

$2147.85

Step-by-step explanation:

199.5*.5=99.75

199.5+99.75=299.25

299.25*.3=89.775

299.25-89.775=209.475

209.475*.04=8.279

209.475+8.379=217.854

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3 years ago

Please answer I really need help with these just answer at least one.

aleksandrvk [35]

.50(150)+30=$105
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2 years ago

At a school picnic, your teacher asks you to mark a field every 10 yards so students can play football. The teacher accidentally

Oxana [17]

Approximately 9 meters are in 10 yards, (as there is approximately 1 meter in a yard, .9144 to be exact.)

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3 years ago

Ellis is painting wooden fenceposts before putting them in his yard. They are each 5 feet tall and have a diameter of 1 foot. Th

Naya [18.7K]

Answer:

39.25 cubic feet of paint will be needed by Ellis.

Step-by-step explanation:

Volume of a cylinder:

The volume of a cylinder of radius r and height h is given by:

$V = \pi r^2h = 3.14r^2h$

How much paint will Ellis need to paint all the surfaces of the 10 fenceposts?

This is the combined volume of these 10 fenceposts.

They are each 5 feet tall and have a diameter of 1 foot.

Radius is half the diameter, so $r = \frac{1}{2} = 0.5$ . Also $h = 5$

10 fenceposts:

Each has the same volume, so:

$V = 10(3.14)r^2h = 31.4(0.5)^2(5) = 39.25$

39.25 cubic feet of paint will be needed by Ellis.

6 0

2 years ago

What regular polygon has an interior angle of 156 degrees

icang [17]

Answer:

regular pentadecagon

Step-by-step explanation:

it has 15 sides

that is what matches the exterior angled sum property - 360degree

let me explain it

1 side = 180 - 156 = 24

360/24 = 15

mark me brainliest and thank me if you like the answer

4 0

2 years ago