Quadrilateral ABCD has the following vertices:
A(-6, -2)
B(-4,4)
C(8,1)
D(6, -6)
Also, ZA is a right angle.
Is quadrilateral ABCD a rectangle, and why?
answers: (ignore the chosen one)

The Equivalent fraction to 64 3/4 is 259/4.

The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves.

We have 64 3/4.

First change the mixed fraction into normal fraction as

64 3/4

= (4 x 64+3)/ 4

= 259/4

Learn more about Fraction here:

https://brainly.com/question/10354322

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Answer:

$7.225

Step-by-step explanation:

Answer:

D) 28.90

Step-by-step explanation:

28.90 divided by 2 = 14.45 + 1.12 (sales tax) = 15.15 (which was the price he had paid)

Answer:

An equation in the slope-intercept form will be:

Step-by-step explanation:

We know The slope-intercept form of the line equation

[tex]y = mx+b[/tex]

where

Let x represent the time in months

Let y represent the amount of money remaining in the account.

Given that every month Monica withdraws $15 from this account for her contact lenses

Thus, the rate of change or slope = m = 15

Given that after 3 months she has $255 left in her account.

So, we take the point (3, 255)

substituting m = 15, x = 3 and y = 255 in the slope-intercept form to determine the y-intercept

y = mx+b

255 = 15(3) + b

switch sides

15(3) + b = 255

45 + b = 255

b = 255 - 45

b = 210

Now, substituting m = 15 and b = 210 in the slope-intercept form of the line equation

y = mx+b

y = 15x+210

Therefore, an equation in the slope-intercept form will be:

Answer:

(B)

Step-by-step explanation:

Let  us denote rectangular tiles by R and square tile by S, then

According to figure.

3 rectangular tiles +2 square tiles +2 square tiles =2 rectangular tiles +4 square tiles +1 rectangular tiles +4 square tiles

∴3R+2S+2R=2R+4S+R+4S

⇒5R+2S=3R+8S

⇒5R-3R=8S-2S

⇒2R=6S

⇒R=3S

Hence, 0ne rectangle =3 square

Answer:

yes b aas

Step-by-step explanation:

Answer:

It's obviously 4 sides.

Step-by-step explanation:

If you count it, point A, point B, point C, point D, those adds up to 4..

can i have brainliest??

Answer:

4

Step-by-step explanation:

Answer:

Step-by-step explanation:

2/3 x 4/5  multiply the terms

8/15

Answer:

2x^2 - 7x - 4

Step-by-step explanation:

Given the expression f(x) = (2x+1)(x – 4)

To write it in standard form, we need to factorize it

(2x+1)(x – 4)

= 2x(x) - 2x(4) + x - 4

= 2x^2 - 8x + x - 4

= 2x^2 - 7x - 4

hence the expression in standard form is 2x^2 - 7x - 4

Answer:

They get greater, obviously and they never lessen

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

The common difference is was is being added with each number

For example-

8 - 2 = 6

14 - 8 = 6

And so on, Therefore-

Common difference is 6

Answer:

-9

Step-by-step explanation:

Answer:

79.81% probability of winning.

Step-by-step explanation:

For each ticket, there are only two possible outcomes. Either you win, or you do not. The probability of winning in a ticket is independent of other tickets. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

And p is the probability of X happening.

The odds of winning the prize is 1 : 53

This means that [tex]p = \frac{1}{53}[/tex]

If I purchased 84 tickets what are the odds of winning in percentage.

To win, at least one of the tickets must have the prize, of 84 tickets, so [tex]n = 84[/tex].

We have to find [tex]P(X \geq 0)[/tex], which is given by:

[tex]P(X \geq 0) = 1 - P(X = 0)[/tex]

In which

[tex]P(X = 0) = C_{84,0}.(\frac{1}{53})^{0}.(\frac{52}{53})^{84} = 0.2019[/tex]

[tex]P(X \geq 0) = 1 - P(X = 0) = 1 - 0.2019 = 0.7981[/tex]

79.81% probability of winning.

Answer:

Step-by-step explanation:

determinant= (-1/2*10)-(-2*x)=25

-5-(-2x)=25

-5+2x=25

2x=30

x=30/2=15

This question is incomplete, the complete question is;

Suppose that for a particular piece of machinery, the frequency distribution of monthly breakdowns is as follows;

Number of breakdowns            prob.

0                                                  0.50

1                                                   0.25

2                                                  0.10

3                                                  0.10

4                                                 0.05

The cost of a breakdown is $2,000, and the cost of a preventive maintenance program is $2,000 per month. If the preventive maintenance program is adopted, the probability of a machine breakdown is negligible. How much better off per month would the firm be if it adopted preventive maintenance

Answer:

the firm will be $100 worse off per month if it adopted preventive maintenance.

Step-by-step explanation:

Given the data in the question;

the probability of breakdown iwill be;

= (0×0.5) + (1×0.25) + (2×0.10) + (3×0.10) +(4×0.05)

= 0 + 0.25 + 0.2 + 0.3 + 0.2 = 0.95 or 95%

Now the cost of machine failure will be;

⇒ 2000 × 0.95= $1900

if they implemented preventive measures, the cost is $2000,

if the preventive measure taken the cost is $2000, the benefit is for $1900, and the output is additional cost of $100.

Therefore the firm will be $100 worse off per month if it adopted  preventive maintenance.

Your answer should be B.

Explanation: Moving left or right affects the x coordinate, and moving up or down affects the y coordinate.

Moving 3 units down: A(1, 1 - 3), B(4, 2 - 3), C(3, 5 - 3) = (1, -2), (4, -1), (3, 2)

Moving 5 units to the left: A(1 - 5, -2), B(4 - 5, -1), C(3 - 5, 2) = A(-4, -2), B(-1, -1), C(-2, 2)

(Sorry I said A, earlier.)

Answer:

yellow

Step-by-step explanation:

Answer:

a. x = 14

b. Perimeter = 77

Step-by-step explanation:

a. Based on the Triangle Proportionality Theorem:

[tex] \frac{2x - 2}{13} = \frac{21 - 7}{7} [/tex]

[tex] \frac{2x - 2}{13} = \frac{14}{7} [/tex]

[tex] \frac{2x - 2}{13} = 2 [/tex]

Cross multiply

[tex] 2x - 2 = 2(13) [/tex]

[tex] 2x - 2 = 26 [/tex]

Add 2 to both sides

[tex] 2x = 26 + 2 [/tex]

[tex] 2x = 28 [/tex]

Divide both sides by 2

x = 14

b. Perimeter of ∆QRS = RQ + QS + RS = (2x - 2) + 13 + 17 + (21 - 7) + 7

Plug in the value of x

= (2(14) - 2) + 13 + 17 + 14 + 7

= 26 + 13 + 17 + 14 + 7

= 77

Answer:

Is there any answer choices so I have some opions

Step-by-step explanation:

Answer:

12 muffins for $9.60

Step-by-step explanation:

Answer:

We conclude that the value of y = 11 cm.

Step-by-step explanation:

Given that both the figures maintain the congruence of the figures. It means both the figures have the same size.

Thus,

The length of DQ = The length of EL

Given

The length of DQ = 3y - 1

The length of EL = 32 cm

so

The length of DQ = The length of EL

                   3y - 1 = 32

Adding 1 to both sides

              3y - 1 + 1 = 32+1

                        3y = 33

Dividing both sides by 3

                      3y/3 = 33/3

                         y = 11

Thus, the value of y = 11 cm

Therefore, we conclude that the value of y = 11 cm.

a. Venn diagram attached below.

b. 2 students are in neither English nor Chemistry.

c. The probability that a randomly chosen student is only taking chemistry is 24/40, or 6/10 because out of the 40 students, 24 of them take exclusively the chemistry class.

Answer: D. y ≤ -2x = 1

Step-by-step explanation: To determine the inequality, first determine the line equation.

Line equation can be written as

[tex]y-y_{0}=m(x-x_{0})[/tex] , called point-slope form of a line equation,

where

m is slope of the equation

x₀ and y₀ are points in the line

Slope is calculated as the difference between y-coordinates divided by the difference between the x-coordinates:

[tex]m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

From the graph, we have 2 points: (-1,3) and (1,-1), so find slope:

[tex]m=\frac{3+1}{-1-1}[/tex]

m = -2

Replacing slope and point (0,1) into point-slope form:

[tex]y-1=-2(x-0)[/tex]

[tex]y=-2x+1[/tex]

This is the equation of the line.

Now, we determine the inequality:

Observe the graph, if the line is a continuous one, it is a less-than-or-equal-to (≤) or more-than-or-equal-to (≥). If it was a dotted line, the symbol would be less-than (<) or more-than (>).

In our case, the line is continuous so it will be ≥ or ≤. To determine which one, we can plug a point located in the shaded part, for example (0,0). Substituting:

y = -2x + 1

0 ≠ -2(0) + 1

0 ≤ 1

Therefore, line equation of the graph is [tex]y\leq -2x+1[/tex].

Answer:

3 meters forward then three in the opposite direction

Step-by-step explanation:

Answer: 7 * p = 7p

Step-by-step explanation:

9514 1404 393

Answer:

  M₅ = 1.6570

Step-by-step explanation:

The basic idea is to find the function values at x ∈ {1.1, 1.3, 1.5, 1.7, 1.9}, add those values, and multiply the result by 1/5. Those x-values are the midpoints of intervals 0.2 units wide, between x = 1 and x = 2. The width 0.2 is the total interval width (2-1=1) divided by n = 5.

The calculation and results are shown in the attachment. Rounded to 4 decimal places, the integral is ...

  M₅ = 1.6570

__

The actual integral is about 1.6574, so this is pretty close.

Answer:

Answer: 2 ml

Step-by-step explanation:

1 litre is equal to 1,000 ml, and therefore the best solution is 2 ml.

Answer:

350 ml

Step-by-step explanation:

70% of 500 ml = 0.7*500 ml = 350 ml

Answer:

350 ml

Step-by-step explanation:

70% of 500 ml = 0.7*500 ml = 350 ml

Here's your answer,

Answer:

1500÷2

750