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3 years ago

If a 12 foot ppiece of electrical tape has 5 pieces that are each 1.45 feet cut from it, what is the new length of the tape?

Mathematics

1 answer:

liberstina [14]3 years ago

6 0

4.75 feet, because you would multiply 5 by 1.54 which gives you 7.25 subtract that from 12

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6,600,000,000 exponential notation

jeyben [28]

Answer:

6.6 x 10^9

Step-by-step explanation:

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2 years ago

Two sides of an obtuse triangle measure 9 inches and 14 inches. The length of longest side is unknown. What is the smallest poss

julia-pushkina [17]

Answer:

17 inches

Step-by-step explanation:

An obtuse triangle is the triangle in which one of the side is the longest. It contains an obtuse angle and the longest side is the side that is opposite to the vertex of the obtuse angle.

Let the three sides of the obtuse triangle be a, b and c respectively with c as the longest side. Let a = 9 inches and b = 14 inches.

Now we know that for an obtuse triangle,

$c^2 > a^2 +b^2$

$c^2 > (9)^2 +(14)^2$

$c^2 > 81 +196$

$c^2 > 277$

c > 16.64

Therefore the smallest possible whole number is 17 inches.

4 0

3 years ago

Read 2 more answers

Use the formula for the area of a circle to solve for the radius of the circle if the area is 78.5cm^2

postnew [5]

Answer:

Area = PI * radius^2

radius = Sq Root (Area / PI)

radius = Sq Root (78.5 / PI)

radius = Sq Root (24.9873260654)

radius = 4.9987

radius = 5 (rounded)

Step-by-step explanation:

5 0

3 years ago

Justine earned $28,000 during the first year of her job at city hall. After each year she received a 6% raise. Find her total ea

Verdich [7]

Answer:

$ 157838.60 in 5 years

Step-by-step explanation:

r = 1.06

sum of geometric seq = a1 ( 1-r^n)/(1-r) n = 5

28000 ( 1 - 1.06^5) / ( 1-1.06) = 157838.60

5 0

2 years ago

Please help me! It’s due soon

Bumek [7]

Answer:

<1= 135 degrees

<4= 135 degrees

<6= 45 degrees

Step-by-step explanation:

This is because angle two and 6 are corresponding angles. you would then subtract 180 from 45 because angle 6 and 4 are consecutive angles. This would give you 135 degrees. Then angle 1 and angle 4 are verticla agles, making them equal to each other.

5 0

3 years ago

Read 2 more answers