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Zielflug [23.3K]
3 years ago
5

Lucy has 8 toy cars. Tim has t times as many toy cars as Lucy. Write an expression that shows how many toy cars Tim has.

Mathematics
1 answer:
viva [34]3 years ago
8 0
Take Lucy's cars (8) and multiply them by Tim's cars (t) to get the expression 8*t.
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Which set of side lengths is a Pythagorean triple??? Please help
kodGreya [7K]

Answer:

C) 9,40,41

Step-by-step explanation:

Pythagorean triple is when a²+b²=c²

A) 1,3,10

  • 1+9=100 - incorrect

B) 4,5,9

  • 16+25=81- incorrect

C) 9,40,41

  • 81+1600= 1681- correct

D) 16,30,44

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A snail travels at a rate of 2.15 feet per minute . Write a rule to describe the function. b. How far will the snail travel in 7
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15.05 feet in 7 min

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What is the first step in estimating 56×27
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The first step is to determine how accurate your estimation needs to be. Then create the iniatial estimate.

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Solve each quadratic equation. Show your work. 14. (2x – 1)(x + 7) = 0 15. x2 + 3x = 10 16. 4x2 = 100
andreyandreev [35.5K]
14.  (2x - 1)(x + 7) = 0

Using the zero factor property, we know that either the first or second terms (or both) must be equal to 0 if their product is 0.  We can set each term equal to 0 to find the solutions:

2x - 1 = 0
2x = 1
x = 1/2

x + 7 = 0
x = -7

15.  x^{2} +3x=10

To solve this equation, you first need to set it equal to 0:

x^{2} +3x=10 \\ x^{2} +3x-10 = 0

Next, it can be factored:

x^{2} +3x-10 = 0 \\ (x+5)(x-2)=0

Finally, we can solve just like we did above:

x + 5 = 0
x = -5

x - 2 = 0
x = 2

16.  4x^2=100

First, you can simplify by dividing each side by 4:

4x^2=100 \\ x^2=25

Now, set the equation equal to 0:

x^2=25 \\ x^2-25=0

Next, factor:

x^2-25=0 \\ (x+5)(x-5)=0

Finally, find the solutions:

x + 5 = 0
x = -5

x - 5 = 0
x = 5
6 0
3 years ago
Greta had $2,992 in a savings account with simple interest. She had opened the account with $2,200 exactly 4 years earlier. What
Alex_Xolod [135]

Answer:

18.3824%

Step-by-step explanation:

Sorry, this may be wrong. I am using an old skill, so it may be wrong.

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