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SIZIF [17.4K]
4 years ago
9

Evaluate: b − a for a = 2 and b = 7

Mathematics
2 answers:
zmey [24]4 years ago
7 0

Answer:

5

Step-by-step explanation:

b − a

Let  a = 2 and b = 7

7-2

5

nirvana33 [79]4 years ago
6 0

Answer:

5

Step-by-step explanation:

Subtract.

7 - 2 = 5

Answer is 5.

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How can you use a number line to compare and order numbers?
miskamm [114]
The numbers going to the left on a number line means the values are smaller and the numbers going to the right means the values are bigger. 

Take the value '0' for example, the value on the right of zero is '1', which is a value bigger than zero, and the value to the left of '0' is '-1', which is a value smaller than zero.

8 0
4 years ago
What is true about the function graphed below?
Dafna1 [17]

Answer:

  D. The axis of symmetry is the y-axis.

Step-by-step explanation:

The vertex is at coordinates (0, 3). Since this parabola opens vertically, its axis of symmetry is the x=coordinate of the vertex: x = 0. That is the equation of the y-axis.

The axis of symmetry is the y-axis.

8 0
3 years ago
Three functions are given below: f(x), g(x), and h(x).
Rzqust [24]

Answer: The axis of symmetry is x=1.

Explanation:

The given function is,

g(x)=5x^2-10x+7

The degree of the equation is 2.  SInce it is a quadratic function therefore the graph of the function is a parabola.

The axis of symmetry of a parabolic function f(x)=ax^2+bx+c is a vertical line,

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

Since the value of a is 5m b is -10 and c is 7, So the axis of symmetry is,

x=-\frac{(-10)}{2(5)}

x=\frac{10}{10}

x=1

Therefore, the axis of symmetry is x=1.

5 0
3 years ago
The diagram shows a plan of a pond.
Serga [27]

Step-by-step explanation:

R=2m

A=πr²

A = 3.142*2*2

=12.568 m2

7 0
3 years ago
Read 2 more answers
J.K. Rowling and R.L. Stine are both reading the hunger games. J.K. reads 35 pages every 2 hours and R.L. reads 45 pages every 3
Lilit [14]

Attention:THIS IS PART B <em>ONLY!</em>

First,find the unit rate.

35/2   and   <em>x</em>/1

35 divided by 2 = 17.5 so the unit rate for J.K. is 17.5 pages per hour.

now,R.L.

45/3   and  <em>x</em>/1

45 divided by 3 = 15 so the unit rate for R.L. is 15 pages per hour

now we need to divide 355 by 17.5 and divide it by 15.Whichever quotient is smaller,finishes the book first

355 divided by 17.5 = about 20 hrs----J.K.

355 divided by 15 = about 24 hrs-----R.L.

So,who read faster?


5 0
3 years ago
Read 2 more answers
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