All categories

3 years ago

Evaluate the expression for the given variable 40-(6x+8) when x=2

Mathematics

2 answers:

alexandr402 [8]3 years ago

6 0

Answer:

800

Step-by-step explanation:

replace x with 2.

multiply 6 and 2 which is 12 then add that to 3, which is 20 then multiply 20 and 400, and that's when you get 800

Bond [772]3 years ago

4 0

Step-by-step explanation:

6 x 2 = 12
12 + 8 = 20
40 - 20 = 20

You might be interested in

At winds speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. Wind speeds below 100

alisha [4.7K]

Answer:

Lower limit = 1007.95 cm/s

Upper limit = 1142.05 cm/s

Step-by-step explanation:

We have to calculate a 95% CI with population's standard deviation known.

The sample is size n=60, with mean M=1075.

The confidence interval can be expressed as:

$M-z*\sigma/\sqrt{n} \leq\mu\leq M+z*\sigma/\sqrt{n}$

For a 95% CI, the value of z=1.96.

$1075-1.96*265/\sqrt{60} \leq\mu\leq 1075+1.96*265/\sqrt{60} \\\\1075-67.05 \leq\mu\leq 1075+67.05\\\\ 1007.95 \leq\mu\leq 1142.05$

8 0

3 years ago

A set has 62 proper subsets how many elements has it for?<br>

MrRissso [65]

Answer:

Step-by-step explanation:

Total number of subsets is given as

${2}^{n}$

But the subset of a set consists of the proper subsets, an empty set and the set itself.

Total number of subsets are 64

Therefore,

${2}^{n} = 64$

${2}^{n} = {2}^{6}$

Comparing both sides

$n = 6$

5 0

3 years ago

2. The sum of two numbers is 30. Determine the two numbers if their product is a maximum.

SCORPION-xisa [38]

Answer:

X+y=30

X=30-y

Z=yx

Z=y(30-y)

D/dy

z=30–2y

At max 30–2y=0

2y=30 Y=15

Therefore x=15

Step-by-step explanation:

5 0

3 years ago

a school wants to make a new playground by cleaning up and abandoned lot that is shaped like a rectangle. they give the job of p

svetoff [14.1K]

<span>3/8 is left is the correct answer if multiple choice

</span>

5 0

3 years ago

Sharoda works at Diamond Jewellers. Her basic week of

Novay_Z [31]

52-40 is 12 hours of overtime

4 0

2 years ago

Evaluate the expression for the given variable 40-(6x+8) when x=2​

Evaluate the expression for the given variable 40-(6x+8) when x=2