1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
LuckyWell [14K]
3 years ago
9

Can someone help me

Mathematics
1 answer:
makkiz [27]3 years ago
5 0
-2.1 + 0.3 - 1.7 - 0.4 = -3.9

answer
A. -3.9 lbs
You might be interested in
Look at the following graph of the given equation. Determine whether the equation is a function. Explain why or why not.
Vadim26 [7]

The equation y=2x+2 is a function

Explanation:

Given that the graph contains the coordinates (-1,0), (0,2) , (1,4) and (2,6)

We need to determine whether the equation y=2x+2 is a function.

To determine the equation is a function, let us substitute the coordinates in the equation and check whether it satisfies the equation.

Let us substitute the coordinate (-1,0) in the equation y=2x+2

Thus, we have,

0=2(-1)+2

0=-2+2

0=0

Thus, the coordinate (-1,0) satisfies the equation y=2x+2

Substituting the coordinate (0,2) in the equation, we have,

2=2(0)+2

2=2

Thus, the coordinate (0,2) satisfies the equation y=2x+2

Substituting the coordinate (1,4) in the equation y=2x+2

4=2(1)+2

4=4

Thus, the coordinate (1,4) satisfies the equation y=2x+2

Substituting the coordinate (2,6) in the equation, we get,

6=2(2)+2

6=6

Thus, the coordinate (2,6) satisfies the equation y=2x+2

Hence, the coordinates (-1,0), (0,2) , (1,4) and (2,6) satisfies the equation y=2x+2

Thus, the equation y=2x+2 is a function.

6 0
3 years ago
The heights of women aged 20 to 29 are approximately normal with mean 64 inches and standard deviation 2.7 inches. men the same
Artyom0805 [142]
<span>To find the z-scores, find the difference in the number of inches for each value from the mean and then divide that by the standard deviation. For women at 72 inches (6'), this would be (72-64) / 2.7, or a z-score of +2.963. For a male at 72 inches, this would be (72-69.3)/2.8, or +0.964. This shows that the woman at 6 feet tall is more rare in the distribution than a man at 6 feet tall.</span>
5 0
2 years ago
HELP PLSPLSPLS
ddd [48]

all "atomic" or constituent statements are true

at least one "atomic" or constituent statement is true

3 0
2 years ago
WILL MARK BRAINLIEST!!!
Art [367]

Answer:

<em>I think the best answer will be is</em><em> C. 1.3 Good Luck!</em>

8 0
2 years ago
Read 2 more answers
Simplify polynomial
Kay [80]

Answer:

j² - 5j²k - 2

Step-by-step explanation:

3j² - j²k - 6 - 4j²k - 2j² + 4

To simplify this polynomial, we can collect like terms. A term is number(s) or variable(s) that are grouped together by multiplication. <u>Like terms have the same variable and exponent</u>.

We have three groups of like terms:

The j-squares (j²), the j-squared k (j²k) and the constants (no variable).

Remember to include the negatives!

The j-squares are: 3j² ; -2j²

The j-squares k are: - j²k ; - 4j²k

The constants are: - 6 ; 4

Simplify:

3j² - j²k - 6 - 4j²k - 2j² + 4

Rearrange the polynomial by like terms

= (- j²k - 4j²k) +  (3j² - 2j²) + (- 6 + 4)

Add or subtract the like terms

= (-5j²k) + (j²) + (-2)

Remove brackets and rearrange so the negative is not first

= j² + - 5j²k + - 2

Simplify where two signs are together. Adding a negative is subtraction.

= j² - 5j²k - 2                  Simplified

8 0
3 years ago
Other questions:
  • Point slope y-7=2/9x-3
    11·1 answer
  • Two towns are 1300 miles apart. A group of hikers starts from each town and walks down the trail toward each other. They meet af
    8·1 answer
  • a triangle is placed in a semicircle with a radius of 7cm, as shown below. find the area of the shaded region. use the value 3.1
    10·1 answer
  • Which of the following sentences could not be used to represent the equation y/2 = 14?
    13·2 answers
  • Create a function rule for the
    10·1 answer
  • Please help me with this
    8·1 answer
  • A parallelogram is shown below:
    15·1 answer
  • Find the solution <br> b = 2/3 a + 1
    10·1 answer
  • If x &lt; 0, y &gt; 0, and x + y = z, which statement about z is true?
    11·1 answer
  • Which of the expressions are equivalent to the one below? Check all that
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!