Answer:
$20 because 2x4=8 3x4=12 12+8=20
Step-by-step explanation:
Answer:
Statement is incorrect
Step-by-step explanation:
Every positive integer cannot be expressed as the sum of three or fewer perfect squares.
Supposing the number 7 only squares less than are 0, 1 and 4
Clearly 7 can not be written using three or fewer of these numbers
It is proved
By taking Cube root of 7
= 1.912931183
Now By taking
= 2.64575131
So both values 1.912931183 and 2.64575131 are not positive integers.
Hence the statement is incorrect.
Those are all rational numbers. A, C, and D, are also integers. 'B' is not one.
The value of (-12) . 8 is -96 and the value of 14.(-5).(-11) is 770
<h3>How to solve the expressions?</h3>
The question implies that we calculate the expressions in two different ways.
<u>1) (-12).8</u>
<u>Way 1:</u>
We have:
(-12).8
This means
(-12) . 8 = -12 * 8
Evaluate
(-12) . 8 = -96
<u>Way 2</u>
We have:
(-12).8
This means
(-12) . 8 = -12 * 8
Express 8 as 4 + 4
(-12) . 8 = -12 * (4 + 4)
Expand
(-12) . 8 = -12 * 4 -12 * 4
Evaluate the products
(-12) . 8 = -48 - 48
Evaluate the sum
(-12) . 8 = -96
Hence, the value of (-12) . 8 is -96
<u>2) 14.(-5).(-11)</u>
<u>Way 1:</u>
We have:
14.(-5).(-11)
This means
14.(-5).(-11) = 14 * -5 * -11
Evaluate
14.(-5).(-11) = 770
<u>Way 2</u>
We have:
14.(-5).(-11)
This means
14.(-5).(-11) = 14 * -5 * -11
Multiply -5 and -11
14.(-5).(-11) = 14 * 55
Multiply 14 and 55
14.(-5).(-11) = 770
Hence, the value of 14.(-5).(-11) is 770
Read more about products at:
brainly.com/question/10873737
#SPJ1
Answer:
54545.4545455
Step-by-step explanation: