It costs $3.45 to buy 3/4 lb of chopped walnuts. How much would it cost to purchase 12 lbs of walnuts? Enter the numeric value only, no symbols.

The correct statement regarding the variation of the two measures is given as follows:

C. Yes, they vary directly. When one quantity increases, the other quantity also increases.

For this problem, we have that when the number of correct answers on the test increases, the score also does, hence the two quantities vary directly, and option c is the correct option for this problem.

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Answer:

x = 6  and y = 13

Step-by-step explanation:

2x + 2y = 38 ⇒ eq 1

y = x + 7  ⇒ eq 2

Substituting the value of y from eq 2 in 1:

2x + 2(x + 7) = 38

2x + 2x + 14 = 38

4x = 24

x = 24/4

x = 6

Now substituting the value of x in eq 2:

y = ( 6 ) + 7

y = 13

solve the system of equations using substitution

2x+2y=38

y=x+7

Answer:

x= 6, y= 13

Step-by-step explanation:

how could you solve 10., if you cannot solve 11. ? they are using the same thing : law of sine.

a/sin(A) = b/sin(B) = c/sin(C)

a, b, c being the sides, and A, B, C being the corresponding opposite angles.

11.

x/sin(90) = 13/sin(70)

as sin(90) = 1

x = 13/sin(70) = 13.83431104...

13.

remember, the sum of all angles in a triangle is always 180°.

angle JLM = 180 - 90 - 51 = 39°

angle LJK = 180 - 90 - 72 = 18°

14/sin(39) = JL/sin(51)

JL = 14×sin(51)/sin(39)

JL/sin(90) = JL = 14×sin(51)/sin(39) = KL/sin(18)

KL = 14×sin(51)×sin(18)/sin(39) = 5.342458907...

The raw score corresponding to a z-score of -2.25 in a population with a mean of 30 and a standard deviation of 6 is 16.5.

The z-score is the number of standard deviations from the mean, so it is a standardized score.

To solve for a raw score corresponding to a given z-score, we can use the formula:

z = (x - μ) / σ

where z is the z-score,

x is the raw score,

μ is the mean,

and σ is the standard deviation.

Rearranging the formula, we can solve for x : x = μ + (z * σ)

Substituting the given values: μ = 30, σ = 6,

and z = -2.25x

= 30 + (-2.25 * 6) x

= 30 - 13.5 x

= 16.5

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The value of a and b are -179/171 and -20/171 respectively.

Rationalising surds is where we convert the denominator of a fraction from an irrational number to a rational number. In more complex cases, it is useful to multiply the denominator by its conjugate to cancel out the surds in the denominator.

(2+5√7)/(2-5√7)

by rationalization

(2+5√7)/(2-5√7) × (2+5√7)/(2+5√7)

=( 4+10√7 + 10√7 + 175)/4+10√7 - 10√7- 175

= (20√7+179)/-171

= -20/171 √7 -179/171

therefore the value of a = -179/171 and b = -20/171

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Answer: i just took the test yesterday and got it right

With the same compass opening, place the compass point on point A and draw a long arc through ​AB−→−​.

hopefully this helps. i would have helped you sooner if i seen it before now

Place the compass point on point A and draw a long arc through AB using the same compass opening.

An "arc" is a smooth curve that connects two points. In general, an arc is a section of a circle. It is essentially a portion of a circle's circumference. An arc is a type of curve. An arc can be a portion of another curved shape, such as an ellipse, but it most commonly refers to a circle.

The arc of a circle is defined as a portion or segment of a circle's circumference. A chord of a circle is a straight line formed by connecting the two ends of an arc. A semicircular arc is one that is exactly half the length of a circle.

A chord of a circle is a straight line that can be drawn by connecting the two ends of an arc.

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Answer:

Step-by-step explanation:

A health researcher conducted a survey and recorded the percentage of body fat of 20 randomly selected men from two different towns.

Answer: 7 hrs and 15 minutes

Step-by-step explanation: because 15 - 8 = 7 45 - 30 = 15

Answer:

uhhh

Step-by-step explanation:

Answer:

IT IS ALSO ISOSCELES !!

Step-by-step explanation:

2 sides are the same

if it was scalene all sides would be different

Using the slope concept, it is found that the rarmp will rise 12.4 inches at it's highest end.

The slope is given by the vertical change divided by the horizontal change, and it's also the tangent of the angle of depression.

In this problem, the horizontal change is of 34 inches with an angle of 20º, hence:

\(\tan{20^\circ} = \frac{h}{34}\)

h = 34 x tan(20º)

h = 12.4.

The rarmp will rise 12.4 inches at it's highest end.

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Answer:I just got it wrong the answer is 11.6

Step-by-step explanation:

Answer:

D or 13 is the answer to this problem.

Answer:

21

Step-by-step explanation:

Use PEMDAS

P ---> Parenthesis

E ----> Exponents

M & D -------> Multiplication & Division

A & S ------> Addition & Subtraction

5 + 4*(8 - 6)² = 5 + 4*(2)²

                     = 5 + 4*4

                     = 5 + 16

                     = 21

Answer:

c

Step-by-step explanation:

1.) move all terms that are not x to the right side.of the inequalities.

10+x≤20 4x≥-24

-10 -10 4 4

x≤10 x≥-6

2.) combine the two equations to make -6≤x≤10

Zero, a positive natural number, or an unsigned negative integer are all examples of integers.

(a) Between 0 and 1, 0.8 is nearer to 1.

(b) Between 5 to 6, 5.1 is nearer to 5.

(c) Between 2 and 3, 2.6 is nearer to 3.

(d) Between 6 and 7, 6.4 is nearer to 6.

(e) Between 9 and 10, 9.1 is nearer to 9.

(f) Between 4 and 5, 4.9 is nearer to 5.

The complete question is.

Between which two whole numbers on the number line are the given numbers lie?

Which of these whole numbers is nearer the number?

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Answer:

C) 0.972

Step-by-step explanation:

I am just as confused as you are but i tried understanding what "at least one" meant and my 2nd option was X>= 1, or something to that effect where 10 to 1 coupons being possible.

Answer: x= 6

Step-by-step explanation:

Since the shape is a parallelogram, the angles will either be equal to each other or add up to 180.  

You can see they do not look the same so they add up to equal 180

12x + 3 +105 = 180

12x + 108 = 180

12x = 72

x = 6

Answer:

|-2| < 6

Step-by-step explanation:

|-2| < 6

The absolute value of -2 is 2

2 < 6

So |-2| < 6

Step-by-step explanation:

3(x+4) ≤ 36

3x + 12 ≤ 36

3x ≤ 24

x ≤ 8

Answer:   x ≤12

Step-by-step explanation:

3(x+4) ≤36

 3x+4 ≤36 (you should simplify)

     3x ≤36 (36 divided by 3 is 12)

       x ≤12

Answer:

B.   3,158

Step-by-step explanation:

h(x) = -49x − 125

Let x = -67

h(-67) = -49(-67) − 125

          =3283-125

          = 3158

Answer:

Answer B

Step-by-step explanation:

To find the value of h(-67) for the function h(x) = -49x - 125,

we substitute -67 for x in the function and evaluate it.

h ( - 67 ) = - 49 ( - 67 ) - 125

Now we can simplify the expression:

h ( -67 ) = 3283 - 125

h ( -67 ) = 3158

Answer:

The answer is 900

good luck

The optimal values of these parameters are:

a. β₁ = 0

b. β₂ = 0

The linear regression y = β1 + β2x + e, assuming that the sum of squared errors (SSE) takes the following form:

SSE = 382 + 681 + 382 + 18β1β2

Derive the partial derivatives of SSE with respect to β1 and β2 and solve the optimal values of these parameters.

Given that SSE = 382 + 681 + 382 + 18β1β2 ∂SSE/∂β1 = 0 ∂SSE/∂β2 = 0

Now, we need to find the partial derivative of SSE with respect to β1.

∂SSE/∂β1 = 0 + 0 + 0 + 18β2 ⇒ 18β2 = 0 ⇒ β2 = 0

Therefore, we obtain the optimal value of β2 as 0.

Now, we need to find the partial derivative of SSE with respect to β2. ∂SSE/∂β2 = 0 + 0 + 0 + 18β1 ⇒ 18β1 = 0 ⇒ β1 = 0

Therefore, we obtain the optimal value of β1 as 0. Hence, the partial derivative of SSE with respect to β1 is 18β2 and the partial derivative of SSE with respect to β2 is 18β1.

Thus, the optimal values of β1 and β2 are 0 and 0, respectively.

Therefore, the answers are: a. β₁ = 0 b. β₂ = 0

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Answer:

f(8)=-161

Step-by-step explanation:

f(x) = -3x^2 + 3x + 7

f(x) = -3x2 + 3x + 7

f(8)= -3(8)^(2) + 3(8) + 7= -192+24+7=-161

Answer:

f(8) = -161

Step-by-step explanation:

The question is asking us to evaluate the function.

In this problem, the function is:

\(\large{\textsf{$ f(x) = -3x^2 + 3x + 7 $}\)

Plug in 8 for x:

\(\large\text{$ f(8) = -3(8)^2 + 3(8) + 7 $}\)

Simplify.

\(\large\text{$ f(8) = -3 * 64 + 24 + 7 $}\)

\(\large\text{$f(8) = -192 + 31 $}\)

\(\large\text{ f(8) = -161}\)

Therefore, f(8) = -161.

Answer:

Tenley has to deposited any amount from $50 and above.

Step-by-step explanation:

From the above question, we can deduce that if your bank balance is below 0, = - , you would be charged $30

Hence,

First she has to pay the bank charges of $30, and to prevent the outstanding charge of $19.95 for generating about charge she has to deposit any amount above $19.95

The amount she has to deposit is

$30 + (x > $19.95)

Assuming x is $20 and above

= $30 + $20 = $50

Hence, Tenley has to deposited any amount from $50 and above.

A=68,B=44

the interior angle of triangle is 180

A+B+C=180

x+x-24+68=180

2x+44=180

2x=180-44

2x=136

x=68

A=x=68

B=68-24=44

Answer:

D. x=3

Step-by-step explanation:

Answer:fixed ratio

Step-by-step explanation: :)

This is an illustration of a fixed ratio reinforcement schedule: after a predetermined number of responses, Frances is given a reward (in this case, $1). (every pound of worms).

An example of a reinforcement plan utilized in the behavioral psychology concept of operant conditioning is a fixed ratio reinforcement schedule. A reward or reinforcement is delivered according to this schedule after a predetermined number of actions or responses. As an illustration, a rat might receive a food pellet after every 10 lever presses.

Fixed ratio schedules work well for encouraging high response rates since the subject is driven to keep up the activity in order to earn the reward. Yet, if the reinforcement is stopped, the behavior can become less frequent or cease entirely.

Fixed ratio schedules can also cause behaviors to become rigid or stereotyped because the subject may start concentrating only on the number of responses required to earn the reward and stop considering other options or actions.

Overall, fixed ratio reinforcement regimens can be helpful in teaching both humans and animals to carry out particular tasks, but they should be utilized with caution and consideration for any unexpected consequences.

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If we want to provide a 95% confidence interval for the mean of a population, the confidence coefficient will be: D. .95.

A confidence interval is also referred to as level of confidence and it can be defined as a range of estimated values that defines the probability that a population parameter would fall or lie within it.

For instance, the confidence interval at 95% is given by p - E < p < p + E

Since the confidence interval for the mean of a population is at 95%, the confidence coefficient would be calculated by simply dividing the confidence interval by 100:

Confidence coefficient = 95/100

Confidence coefficient = 0.95

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Answer:

243.750

Step-by-step explanation:

Answer:

Your answer is 243.75 if you mean rounding to decimal hundredths but if you mean hundreds place then your answer would be 200 . I hope this helps!

Step-by-step explanation:

Number 2.3 should be placed 1 place after 2.2 in the above sequence.

To locate the 2.3 on the line between 2.2 and 2.6, the rule of three formula must be used.

The rule of three is used to solve problems in which two relationships are compared with each other and want to find a third relationship that follows from them.

First, we find the difference between 2.6 and 2.2.2.6 - 2.2 = 0.4

Next, we find how much 0.4 represents of the total length between 2.2 and 2.6.2.6 - 2.2 = 0.4(l)

l = 0.4 / 0.4

l = 1

So, 2.3 should be placed 1 place after 2.2.

The sequence would be: 2.2, 2.3, 2.6, 2.9, 2.10.

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Answer:

She has to pay $20078.7 amount.

Step-by-step explanation:

Given : Beth owes 17,000 on her car loan. The interest rate on her loan is 4.25% She will be paying this loan off for 4 years.

To find : How much will she pay altogether?

Solution :

Using compound interest formula,

A = P(1 + r)

Where A is the amount

P is the principle P=17,000

P is the rate r=4.25%=0.0425

t is the time t= 4 years

Substitute the value,

Therefore, She has to pay $20078.7 amount.