answer.
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
zalisa
1 month ago
12

The table shows ordered pairs of the function y = 8 - 2x. When x = 8, the value of y is

Mathematics
2 answers:
PIT_PIT [12.4K]1 month ago
8 0
By substituting x into the equation, it will allow us to determine y since only one variable remains unsolved.
y = 8 - 2x
y = 8 - 2(8)
y = 8 - 16
y = -8
Inessa [12.5K]1 month ago
7 0
Replacing x with 8 in the expression 8 - 2x results in 8 - 2(8), which equals 8 - 16, leading to y = -8. 
You might be interested in
A security alarm requires a four-digit code. The code can use the digits 0–9 and the digits cannot be repeated. What is the appr
Leona [12618]
The estimated probability that the code consists solely of odd digits is 0.02381.
3 0
9 days ago
Read 2 more answers
At the local dairy farm, Kareem buys a 32-oz container of yogurt for $2.56. Jonah buys a 6-oz container of yogurt for $0.48. Are
Zina [12379]

Answer:

Yes, the cost y in dollars and the quantity of yogurt x are indeed proportional.

The relationship can be expressed as: y=0.08x


Step-by-step explanation:

1. If y varies directly with x, it can be represented as:

y=kx

Here, k represents the constant of proportionality.

2. We'll calculate the proportionality constant. Given that y=2.56 and x=32, we have:

y=kx\\k=\frac{y}{x}\\k=\frac{2.56}{32}\\k=0.08

3. Thus, the equation becomes:

y=0.08x

4. Now, we need to verify proportionality. Substituting x=6, which is the quantity of yogurt purchased by Jonah, we should arrive at $0.48:

y=0.08(6)\\y=0.48

5. They are indeed directly proportional.

6 0
1 month ago
Read 2 more answers
Based on daily measurements, Bob's weight has a mean of 200 pounds with a standard deviation of 16 pounds, while Mary's weight h
babunello [11817]

Answer:

(C) They have the same coefficient of variation

Step-by-step explanation:

The coefficient of variation (CV) is calculated using the formula:

CV = \frac{\sigma}{\mu}

Where \sigma represents standard deviation and \mu represents the mean.

Bob's average weight is 200 pounds with a standard deviation of 16 pounds

This indicates that \sigma = 16, \mu = 200.

Thus, his coefficient of variation is

CV = \frac{16}{200} = 0.08

Mary's average weight is 125 pounds, with a standard deviation of 10 pounds.

This implies \sigma = 10, \mu = 125

Therefore, her coefficient of variation is

CV = \frac{10}{125} = 0.08

Since both have the same coefficient of variation, the accurate response is.

(C) They have the same coefficient of variation

6 0
1 month ago
If f(x) = 7 + 4x and g (x) = StartFraction 1 Over 2 x EndFraction, what is the value of (StartFraction f Over g EndFraction) (5)
lawyer [12517]

Response:

\frac{f}{g}(5) = 270 ⇒ Previous solution

Detailed breakdown:

* Given f(x) = 7 + 4x

* Given g(x) = \frac{1}{2x}

* We aim to determine \frac{f}{g}(5)

- Initially, let’s calculate \frac{f}{g}(x)

∵ f(x) = 7 + 4x

∵ g(x) = \frac{1}{2x}

∴ \frac{f}{g}(x)=\frac{7+4x}{\frac{1}{2x}}

- Let’s perform division of the numerator by the denominator

∵ The numerator is 7 + 4x

∵ The denominator is \frac{1}{2x}

∴ (7 + 4x) ÷ \frac{1}{2x}

- Now we will change the division sign to a multiplication sign and take the reciprocal of

the fraction following the division sign

∴ (7 + 4x) × \frac{2x}{1}

∴ \frac{f}{g}(x) = 2x(7 + 4x)

∴ \frac{f}{g}(x) = 14x + 8x²

- Next, substitute x with 5

∴ \frac{f}{g}(5) = 14(5) + 8(5)² = 70 + 200 = 270

∴ \frac{f}{g}(5) = 270

4 0
13 days ago
Read 2 more answers
Xander says that it is not possible to draw a quadrilateral that is not a parallelogram and not a trapezoid. Devin says it is po
Zina [12379]
To address this question effectively, it's essential to clarify the characteristics of the given geometric terms.

A quadrilateral is defined as a four-sided figure.

Parallelograms are a subset of quadrilaterals characterized by having two pairs of parallel sides, with congruent opposite sides and angles. Instances of parallelograms include squares, rectangles, and rhombuses.

Trapezoids are also categorized under quadrilaterals but are distinguished by having only one pair of parallel sides.

In our investigation, we seek to determine whether there exists a four-sided shape without parallel sides. The included image presents an example of a quadrilateral that does not qualify as either a parallelogram or a trapezoid. Therefore, in accordance with the definitions of these polygons, the correct choice is B.

6 0
19 days ago
Other questions:
  • The function p(x) = –8x2 – 64x can be written in vertex form p(x) = a(x – h)2 + k, where a =, h =, and k =. To graph the functio
    14·2 answers
  • if you are adding two fractions that are both greater than 1/2 what must be true about the sum? Give three examples to support y
    10·1 answer
  • In a high school there are 1200 students. Estimate the probability that more than 130 students were born in January under each o
    12·1 answer
  • Create a pattern for the rule a x 3 + 2
    14·1 answer
  • Ryan and Scott are each studying a square pyramid.
    12·2 answers
  • If ƒ(x ) = 3x + 1 and and ƒ -1 = , then the ordered pair of ƒ -1(10) = (10, 31) (10, 3) (3, 10)
    7·1 answer
  • When Sophia runs the 400 meter dash, her finishing times are normally distributed with a mean of 75 seconds and a standard devia
    13·1 answer
  • Which represents an exterior angle of triangle EGF? <br><br><br> ∠MEG <br> ∠NEG <br> ∠PEQ <br> ∠RFS
    12·2 answers
  • There are six professors teaching the introductory discrete mathematics class at someuniversity. The same final exam is given by
    12·2 answers
  • Which equation represents a proportional relationship that has a constant of proportionality equal to –10? y = x minus 10 y = x/
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!