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3 years ago

I need help with question B)

Mathematics

1 answer:

Lady bird [3.3K]3 years ago

3 0

Answer:

i cant see the graph, how do you expect us to awser you

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Solve this quadratic equation.<br> x2 + 5x + 3 = 0

Xelga [282]

Answer:

Step-by-step explanation:

2x+5x+3=0

7x+3=0

-3 -3

=0 =-3

7x=-3

-3/7=-0.42857142857

x=-0.42857142857

I think it is right

3 0

2 years ago

Find the sum of the first 20 terms of the arithmetic sequence 4, 10, 16, 22....

hammer [34]

n = 20

d = 6

a = 4

L = a + (n - 1)*d

L = 4 + (20 - 1)*6

L = 4 + 19*6

L = 118

Sum = (a + L)*n/2

Sum = (4 + 118) * 20/2

Sum = 122 * 10

Sum = 1220

3 0

3 years ago

The symphonic choir and the jazz choir are recording songs for an album. The album can be no more than 72

Brut [27]

Answer:

The maximum number of songs that the symphonic choir can record is 14

Step-by-step explanation:

Let

x ----> the number of songs of the symphonic choir

we know that

The number of songs of the jazz choir multiplied by its average time per song plus the the number of songs of the symphonic choir multiplied by its average time per song, must be less than or equal to 72 minutes

The inequality that represent this situation is

$3(7)+3.5(x)\leq 72$

solve for x

$21+3.5x\leq 72$

subtract 21 both sides

$3.5x\leq 51$

divide by 3.6 both sides

$x\leq 14.6\ songs$

therefore

The maximum number of songs that the symphonic choir can record is 14

3 0

3 years ago

Eddie is practicing wind sprints during his summer break. He’s able to run 72 meters in 12 seconds. If d represents distance and

KATRIN_1 [288]

Answer:

what grade is this in?

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

(answer ASAP! thanks.) "As part of a math project, Joel recorded the types of vehicles passing an intersection in one hour. His

ANTONII [103]

Step-by-step explanation:

There is a total amount of vehicle of 100

which is good because now you can say 73% is cars 16% is small trucks 6% is large trucks and 2% motorcycle and 3% bicycle. Adding the trucks (small 16, large 6) gives us 24% so you can do 100% - 24% and get 74%. Thanks and goodbye!

7 0

3 years ago