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Delvig [45]
3 years ago
11

1. Phil, Steve, and Esther are aged 19 - 22, and none of them is the same age. Phil's age is an even

Mathematics
1 answer:
zalisa [80]3 years ago
7 0
Phil is 20, Steve is 21, and Esther is 19. Steve is the oldest
You might be interested in
Which equation matches the graph shown?
Kitty [74]

Answer:

f(x) = -(x+2)(x-1)

Step-by-step explanation:

We know the zeros are at 1 and -2

f(x) = a *(x-b1)(x-b2)  where b1 and b2 are the zeros and a is a constant

f(x) =a(x-1)(x- -2)

f(x) =a(x-1)(x+2)

We know that a must be negative since the parabola opens down so

The only choice is choice D where a = -1

f(x) = -(x+2)(x-1)

3 0
3 years ago
Simplify the algebraic expression 9+4(3c-1)
Natasha2012 [34]
9+4(3c-1)
13(3c-1)
39c-13

5 0
3 years ago
Given the length of three sides of a triangle, which is a right triangle?
RSB [31]

The aides of a right triangle will always satisfy the Pythagorean relationship ...

                   a² + b²=  c²

We can take each of these and try it out:

(1) ... 10² + 24² = 100 + 576  = 676
         √676 = <em>26  Yes</em>.

(2) ... 12² + 18²  =  144 + 324  =  468
           √468  =  21.6, not 20.  <em>No.</em>

(3) ... 15² + 26²  =  225 + 676  =  901
         √901  =  30.017  Awfully close.  As an engineer, I'll buy this one. <em>Yes.</em>

(4) ...  40² + 50²  =  1,600 + 2,500  =  4,100
          √4,100  =  64.03, not 80.<em>  No.</em>


8 0
2 years ago
Read 2 more answers
A class planted 130 seeds. 52 seeds grew into plants. What percent of the seeds grew into plants?
Alexus [3.1K]

Answer:

40%

Step-by-step explanation:

52/130 =.4

.4 x 100=40

5 0
3 years ago
Three consecutive even numbers have a sum between 84 and 96. Write an inequality to find the three numbers. Let n represent the
pantera1 [17]
The numbers are: n, (n+2) and (n+4);
we can suggest this inequation:
84<n+(n+2)+(n+4)<96

Now, we solve this inequation:
84<n+(n+2)+(n+4)<96
84<3n+6<96

1)
3n+6>84
3n+6-6>84-6
3n>78
3n/3>78/3
n>26

2)
3n+6<96
3n+6-6<96-6
3n<90
3n/3<90/3
n<30

The solution is:
26<n<30

Then: n=28

The numbers will be: 28,30 and 32.

5 0
3 years ago
Read 2 more answers
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