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blondinia [14]
3 years ago
10

Simplify the expression: 5 + 8b - 5b

Mathematics
1 answer:
stira [4]3 years ago
6 0

Answer:

4+3b.............

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If 10x +4 is equal to 12x -26 what is the value of x
Morgarella [4.7K]

Answer: 15

Step-by-step explanation:

10x+4=12x-26

Add 26 to both sides; 10x+30=12x

subtract 10x from both sides; 30=2x

divide both sides by 2; x=15

3 0
3 years ago
Find the area of the circle. ​
denis-greek [22]

Answer:

78.5 cm^2

Step-by-step explanation:

1, find the radius (half a diameter) R = 5

3.14 * 5^2

3.14 * 25 = 78.5

4 0
3 years ago
A Toyota Prius and a Dodge Circuit leave an intersection at the same time. The Prius heads east at an average speed of 50 miles
zhenek [66]

Answer:

33.634 ; 134.536 ; d = √[(50t)² + (45t)²]

Step-by-step explanation:

Given the following :

Toyota Prius = East at 50mph

Dodge Circuit = South at 45mph

Distance apart after 30 minutes :

Distance = speed * time

Distance moved by Prius = ( 50mph × 0.5hr) = 25 miles

Distance moved by Circuit = ( 45mph × 0.5hr) = 22.5 miles

Hence Displacement after 30 minutes :

d = √(25² + 22.5²)

d = √625 + 506.25

d = √1131.25

d = 33.634 miles

Distance apart after 2 hours :

Distance = speed * time

Distance moved by Prius = ( 50mph × 2hr) = 100 miles

Distance moved by Circuit = ( 45mph × 2hr) = 90 miles

Hence Displacement after 2 hours :

d = √(100² + 90²)

d = √10000 + 8100

d = √18100

d = 134.536 miles

Distance d in miles after t hours :

d = √[(50t)² + (45t)²]

8 0
4 years ago
Find the area of a circle with radius of 7
zubka84 [21]

Answer:

-The area of a circle:

A \approx 153.938

     or

A \approx 153.94 (Rounded to nearest hundredth if needed)

Step-by-step explanation:

-Use the formula to find the area of a circle:

A = \pi r^2

-After you have the formula set up, use the radius for the formula:

A = \pi 7^2

-Then, you solve the formula:

A =  \pi \times 7^2

A = \pi \times 49

A = 49\pi \approx 153.938

-Round up to the nearest hundredth (if needed):

A \approx 153.94

4 0
3 years ago
Which of these tables represents a linear function?
tangare [24]

one second the think I

8 0
4 years ago
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