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Fed [463]
3 years ago
8

Evaluate the expression: (–2)2 + (–42) + (18 – 23).

Mathematics
2 answers:
marta [7]3 years ago
6 0

Answer:

-51 (no options are matching)

Step-by-step explanation:

Given: (–2)2 + (–42) + (18 – 23).

we know, 2*2 = 4, and in integer multiplication if any negative integer is multiplied with positive integer, then the result will have a negative sign.

= -4 + (-42) + (18 – 23)

Here, we have open the brackets, and written the respective signs with the integers,

= - 4 - 42 - 5

now, we will perform the integer addition. Adding all the positives together & he negative numbers together

= -51

PS: It happens to be that none of the given options match with the correct answer. But, i have solved taking the expression, i hope it helps

nignag [31]3 years ago
5 0

<u>Answer:</u>

The correct answer is for the given expression is -43.

<u>Step-by-step explanation:</u>

We are given the following expression and we are supposed to evaluate it:

(-2)^2 + (-42) + (18 - 23)

Solving the terms inside the brackets first, following the order of operations to solve a mathematical expression to get:

= 4 + (-42) + (-5)

Further adding and subtracting the terms to get:

= 4 - 42 - 5

= -38 - 5

= -43

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B. 51 pounds.
<span>You multiply your weight on Earth (170) and the Alien's weight one Jupiter (120) and divide it by your weight on Jupiter (400).</span>


5 0
3 years ago
When performing tests involving two or more populations it is important to specify which population is population 1 and which is
iris [78.8K]
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a. True







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3 0
2 years ago
Do you know works at a dinner she earn six dollars each hour plus tips in one week she worked 37 hours a week and earned 43 tips
lukranit [14]

Answer:

265

Step-by-step explanation:

The computation of the amount that should be make out together is shown below:

Let us assume the number of hours be x

And, the total money earned be y

Now the equation would be

y = 6x  + 43

= 6(37) + 43

= 265

5 0
2 years ago
Marisa took a survey and discovered that 38 out of 152 students in the seventh grade at her school have more than one pet. What
mamaluj [8]

Answer:

<h3>25%</h3>

Step-by-step explanation:

Total number of student in the school = 152 students

Number of student that have more than one pet = 38

percentage of the students have more than one pet will be expressed as

% of student with more than 1 pet = number of student with more than one pet/total number of student * 100%

% of student with more than 1 pet = 38/152 * 100

% of student with more than 1 pet = 3800/152

% of student with more than 1 pet = 25%

Hence 25% of the students in the school have more than one pet.

3 0
2 years ago
Find the coordinates of G if F(2,5) is the midpoint of line GJ and J and has coordinates (-2,8)
dimulka [17.4K]

Answer:

G(6,2)

Step-by-step explanation:

If point F(x_F,y_F) is the midpoint of the segment GJ, where G(x_G,y_G) and J(x_J,y_J), then

x_F=\dfrac{x_G+x_J}{2},\\ \\y_F=\dfrac{y_G+y_J}{2}.

In your case,

F(2,5),\ J(-2,8),

therefore,

2=\dfrac{x_G+(-2)}{2},\\ \\5=\dfrac{y_G+8}{2}.

Thus,

x_G-2=4\Rightarrow x_G=6,\\ \\y_G+8=10\Rightarrow y_G=2.

4 0
2 years ago
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