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tigry1 [53]
3 years ago
15

Help me with this please

Mathematics
2 answers:
sertanlavr [38]3 years ago
8 0

Answer:

26

Step-by-step explanation:

square root of 81 is 9, 9*2 is 18, square root of 64 is 8, 18+8 is 26

defon3 years ago
6 0

Answer:

26

Step-by-step explanation:

2(square root of 81)+square root of 64

2(9)+8=

18+8=

26

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For an activity in class, students used pieces of string to measure roads on a map. They used a map scale to determine the
Elina [12.6K]

Answer:

The real-life distance to the nearest mile between Tampa and Orlando is 88 miles

Step-by-step explanation:

String distance between Fort Myers and Miami = 7 inches

A real life distance between Fort Myers and Miami = 154 miles

So, 7 inches = 154 miles

1 inch = \frac{154}{7}=22 miles

Scale : 1 inch = 22  miles

String distance between Tampa and Orlando = 4 inches

Using scale

The real-life distance to the nearest mile between Tampa and Orlando = 4 \times 22 = 88 miles

Hence The real-life distance to the nearest mile between Tampa and Orlando is 88 miles

6 0
3 years ago
A circle has a radius of 3. An arc in this circle has a central angle of 20°
Alla [95]

Answer:

The length of the arc is 1.0467

Step-by-step explanation:

First of all to solve this problem we need to use the circumferenc formula of a circle:

c = circumference

r = radius = 3

π = 3.14

c = 2π * r

we replace with the known values

c = 2 * 3.14 * 3

c = 18.84

The length of the circumference is 18.84

Now we have to divide the 20° by the 360​​° that a circle has, to know what part of the circle it represents

20° / 360° = 1/18

Now we multiply this fraction by the circumference and obtain the length of the arc

1/18 * 18.84 = 1.0467

The length of the arc is 1.0467

4 0
3 years ago
Please guys help me with this
likoan [24]

oh this is easy! it just means 121 divided by 11, which is a whole number anyway. you just need to know your 11 times tables.

11, 22, 33, 44, 55, 66, 77, 88, 99, 110, 121,...

the answer is 11 because 11 goes into 121, 11 times.

8 0
4 years ago
A triangle has an area of 29.7 cm^2 and a base of 13.5 cm. Use the formula A= 1/2bh to find the height.
Tresset [83]

Answer:

A

Step-by-step explanation:

A=hbb

2

Solving forhb

hb=2A

b=2·29.7

13.5≈4.4

6 0
3 years ago
Urgent
Damm [24]

The result of our calculations about the rate and time are:

  • r=d/t
  • 200000m/hr
  • 200km/hr
  • km/hr

<h3>What is rate?</h3>

Rate can be regarded as the given object with respect to time.

falcon flies= 800,000 meters

t= 4 hours

We were given the  formula as (d = rt)

d= distance

r = rate

t = time

We can make our calculations as:

part a:

r=d/t

part b:

falcon's rate in meters per hour = 800,000 meters / 4 hours = 200000m/hr

part c:

falcon's rate in kilometers per hour=(200000m/hr *(1/1000)=200km/hr

part d:

km/hr

Learn more about rate at:

brainly.com/question/8728504

#SPJ1

4 0
2 years ago
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