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3 years ago

Nina cuts a 1 3/4 cm piece of paper from a strip measuring 2 7/8 cm. How much paper is left?

Mathematics

1 answer:

antiseptic1488 [7]3 years ago

7 0

Answer:

1.125

Step-by-step explanation:

1 and 3/4 = 1.75

2 and 7/8 = 2.875

2.875 - 1.75 = 1.125

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Evaluate :11/3 + -3/7 + -4/9

solmaris [256]

Answer:

3.67+(-0.43)+(-0.44)

3.67-0.43-0.44

3.24-0.44

2.8 Ans

8 0

2 years ago

If n is an even number. (b) What type of number is n + 1?

NeTakaya

Answer:

An odd number

Step-by-step explanation:

suppose n is 2.

If we add 1 into it, the answer will be 3, making it odd. same goes for any other even number if 1 is added in it

5 0

3 years ago

Which equation is y = 9x2 + 9x – 1 rewritten in vertex form?

Anastasy [175]

Answer:

$y = 9(x +\frac{1}{2}) ^ 2 -\frac{13}{4}$

Step-by-step explanation:

An equation in the vertex form is written as

$y = a (x-h) + k$

Where the point (h, k) is the vertex of the equation.

For an equation in the form $ax ^ 2 + bx + c$ the x coordinate of the vertex is defined as

$x = -\frac{b}{2a}$

In this case we have the equation $y = 9x^2 + 9x - 1$ .

Where

$a = 9\\\\b = 9\\\\c = -1$

Then the x coordinate of the vertex is:

$x = -\frac{9}{2(9)}\\\\x = -\frac{9}{18}\\\\x = -\frac{1}{2}$

The y coordinate of the vertex is replacing the value of $x = -\frac{1}{2}$ in the function

$y = 9 (-0.5) ^ 2 + 9 (-0.5) -1\\\\y = -\frac{13}{4}$

Then the vertex is:

$(-\frac{1}{2}, -\frac{13}{4})$

Therefore The encuacion excrita in the form of vertice is:

$y = a(x +\frac{1}{2}) ^ 2 -\frac{13}{4}$

To find the coefficient a we substitute a point that belongs to the function $y = 9x^2 + 9x - 1$

The point (0, -1) belongs to the function. Thus.

$-1 = a(0 + \frac{1}{2}) ^ 2 -\frac{13}{4}$

$-1 = a(\frac{1}{4}) -\frac{13}{4}\\\\a = \frac{-1 +\frac{13}{4}}{\frac{1}{4}}\\\\a = 9$

Then the written function in the form of vertice is

$y = 9(x +\frac{1}{2}) ^ 2 -\frac{13}{4}$

7 0

3 years ago

Find the missing point of the following parallelogram.

AnnyKZ [126]

Answer:

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Need the correct answer for 16 plz

cluponka [151]

1/50 of a mile is the distance the snail goes in 50 minutes. To get an hour, the snail must move for another 10 minutes (60-50=10).

Dividing 1/50 mile by 5 gives us 0.2/50 mile, which would be what the snail travels in 10 mins.

This can be added to 1/50 to give 1.2/50 mile as the answer

OR

You can take 0.2 and times it by 6 (to get 60 minutes from 10 minutes) to give the same answer as above.

Either way, the snail has gone 1.2 miles after the hour has passed.

5 0

3 years ago