3 years ago

Can u guys help i need to make this longer lol

Mathematics

1 answer:

Marizza181 [45]3 years ago

5 0

I don’t under stand the question. What do you want me to answer

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seropon [69]

Answer:

he needs 500 cm of ribbon

Step-by-step explanation:

pieces cut =10

size of pieces = 50 cm each .

50 × 10 = 500 answers

4 0

3 years ago

The fucntion f(x)=2x^2+3x+5 when evaluated, gives a value of 19. What is the functions input value?

BlackZzzverrR [31]

Answer:

x1= 14/4 and X2 = -2

Step-by-step explanation:

To find the values of "X" for which when the function is evaluated gives 19 we need to equal the function to 19, as follows:

2x^2+3x+5 = 19

2x^2+3x+5-19=0

2x^2+3x-14=0

Then, solving for "x" we need to use the quadratic formula (Attached), where a, b, and c, are the following:

a: 2 b: 3 c: 14

Using the quadratic formula, we get:

x1= 14/4 and X2 = -2

8 0

3 years ago

Mac is 5 feet tall and casts a 4 foot 6 inch shadow. At the same time, a nearby tree casts a 20

Sergio [31]

I will convert feet to inches.

4 feet, 6 inches = 54 inches

20 feet = 240 inches

5/x = 54/240

Let x = closest height of tree

54x = 5(240)

54x = 1,200

x = 1200/54

x = 22.2222222222

The tree is about 22 feet tall.

7 0

3 years ago

Read 2 more answers

How many tenth are in the number 54.724

Katen [24]

It would be 7 beacause the # after the decimal is the tenths pleace

8 0

3 years ago

Can someone please do this substitution method question with the working out.

timurjin [86]

Answer:

Step-by-step explanation:

$T = \frac{1}{2}m^{2}+2m - 4\\\\T = 2m + 4\\\\\frac{1}{2}m^{2}+2m - 4 = 2m + 4\\\\\frac{1}{2}m^{2}+2m - 4 - 2m - 4 = 0$

Combine like terms

$\frac{1}{2}m^{2}+2m - 2m - 4 - 4 = 0\\\\\frac{1}{2}m^{2} - 8 = 0\\\\\frac{1}{2}m^{2} =8\\\\m^{2} = 8*2\\\\m^{2} = 16\\\\m = \sqrt{16}$

m = ± 4

6 0

3 years ago