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3 years ago

Simplify the expression. -2 + 5

Mathematics

2 answers:

Ivanshal [37]3 years ago

6 0

Answer:

Step-by-step explanation:

Harman [31]3 years ago

6 0

Answer:

Step-by-step explanation:

-2 +5 = 3

you could use the number line for it

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Is the following statement a good definition? Why? An integer is divisible by 100 if and only if its last two digits are zeros.

kifflom [539]

The given statement is:
An integer is divisible by 100 if and only if its last two digits are zeros

The two conditional statements that can be made are:

1) If an integer is divisible by 100 its last two digits are zeros.

This is a true statement. If a number is divisible by 100, it means 100 must be a factor of that number. When 100 will be multiplied by the remaining factors, the number will have last two digits zeros.

2) If the last two digits of an integer are zeros, it is divisible by 100.

This is also true. If last two digits are zeros, this means 100 is a factor of the integer. So the number will be divisible by 100.

Therefore, the two conditional statements that are formed are both true.

So, the option A is the correct answer.
Yes, it is. When the definition is separated into two conditional statements, both of the statements are true

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3 years ago

A pet store holds training classes for dogs. The store has two different training programs. The first program charges a $35 memb

GrogVix [38]

The programs cost the same for 7 classes.

Given, no. of classes is represented by c, no. of dogs is represented by d, no. of hours is represented by h, the no. of programs is represented by p and the total cost is represented by t.

The first program charges $35 membership fee and $5 for each class.

The second program charges only $10 for each class.

Now the total cost say $t_{1}$ , for first program can be written in equation form as,

$t_{1} =35+5c$ , here c is the no. of classes.

Similarly, the total cost say $t_{2}$ , for second program can be written in equation form as,

$t_{2} =10c$ .

We have to find out the no. of classes for which the two programs cost the same.

according to the question,

$t_{1} =t_{2}$

$35+5c=10c\\10c-5c=35\\5c=35\\c=7$

Hence for 7 of classes the programs cost the same.

For more details follow the link:

brainly.com/question/4042361

3 0

2 years ago

Read 2 more answers

A baseball is hit with an initial upward philosophy of 70 ft./s from a height of 4 feet above the ground. The equation h= -16x^2

saul85 [17]

Answer:

x=4.34 seconds

Step-by-step explanation:

-16x^2+70x-2=0

$x=\frac{35+\sqrt{1193}}{16}$

x=4.34

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3 years ago

8.2 is 10% of what number

Tatiana [17]

8.2 is 10% of 82

As 8.2 * 10 is 82.

4 0

4 years ago

Read 2 more answers

Convert 0.063 to scientific notation

Firdavs [7]

The answer = 6.3 × 10-2
(scientific notation)

= 6.3e-2
(scientific e notation)

= 63 × 10-3
(engineering notation)
(thousandth; prefix milli- (m))

= 0.063
<span>(real number)</span>

5 0

3 years ago

Simplify the expression. -2 + 5​

Simplify the expression. -2 + 5