Name all the chords ...

Answer:

∠WUV

Step-by-step explanation:

Start from the top, the meeting point of the rays is the angle U

Answer:

-7

Step-by-step explanation:

4 + (−3 − 8)

PEMDAS

Parentheses first

4 + (-11)

Add and subtract next

-7

Answer:

first I'm using BODMAS

4+(-11)

= -7

hope it helps

1 - complementary =  90- 30 = 60

    suplementary = 180- 30 = 150

2 - area = hb/2 = 360 = hb/2 =  h = 72

3 - similar

4- see number 3

5 - asa, ssa, sas

6 - polygon that had all equal angle measures and sides (equiangular and equilateral)

7 - length x width = area so

   240 / 24 = 10

8 - line

9 - triangle

10 - 180, as see in question 1

vote me brainliest ):>

Answer:

100

Step-by-step explanation:

Okay so I'm not 100% sure but I think it's 100 because:

Angle B and D are the same, so the 12.5 areas will be the same (I honestly suck at explaining I'm really sorry.) But, if you add the sides from angle B and D it will be 50 because 12.5 + 12.5 + 12.5 + 12.5 (or 12.5 * 4). Meanwhile, For angle A and C, both outsides are the same as the other side.

I'm so sorry I can't explain the problem well but once you add them:

11.5 + 11.5 + 12.5 + 12.5 + 12.5 + 12.5 + 13.5 + 13.5 = 100

Answer:

39.6

Step-by-step explanation:

Given in the right angled triangle above are:

Ѳ = 49°,

Adjacent length = 26

Hypotenuse length = x

To find x in the right angled triangle given above, apply the trigonometric formula, cos Ѳ = adjacent length/hypotenuse length

Thus,

[tex] cos(49) = \frac{26}{x} [/tex]

Multiply both sides by x

[tex] cos(49)*x = \frac{26}{x}*x [/tex]

[tex] cos(49)*x = 26 [/tex]

[tex] 0.6561*x = 26 [/tex]

Divide both sides by 0.6561 to find x

[tex] \frac{0.6561*x}{0.6561} = \frac{26}{0.6561} [/tex]

[tex] x = \frac{26}{0.6561} [/tex]

[tex] x = \frac{26}{0.6561} [/tex]

[tex] x = 39.63 [/tex]

x = 39.6 (to nearest tenth)

Answer:

[tex](-\infty, -0.76) \cup (0.76, \infty)[/tex]

Step-by-step explanation:

The first step to solve this question is finding the critical points of the function F(x), which are x for which:

[tex]F'(x) = 0[/tex]

In this question:

[tex]F(x) = x^{9} - x[/tex]

So

[tex]F'(x) = 9x^{8} - 1[/tex]

[tex]9x^{8} - 1 = 0[/tex]

[tex]9x^{8} = 1[/tex]

[tex]x^{8} = \frac{1}{9}[/tex]

[tex]x = \sqrt[8]{\frac{1}{9}}[/tex]

[tex]x = \pm 0.76[/tex]

So we have three intervals:

[tex](-\infty, -0.76), (-0.76, 0.76), (0.76, \infty)[/tex]

We take a value of x from each interval. If the derivative is positive, the function increases. Otherwise, it decreases.

First interval:

[tex](-\infty, -0.76)[/tex]

Will take x = -1.

[tex]F'(-1) = 9*(-1)^{8} - 1 = 9 - 1 = 8[/tex]

Positive, so increases.

Second interval:

(-0.76, 0.76),

Will take x = 0;

[tex]F'(0) = 9*(0)^{8} - 1 = 0 - 1 = -1[/tex]

Negative, so decreases

Third interval:

[tex](0.76, \infty)[/tex]

Will take x = 1

[tex]F'(1) = 9*(1)^{8} - 1 = 9 - 1 = 8[/tex]

Positive, so increases.

Interval of increase:

First and third, so:

[tex](-\infty, -0.76) \cup (0.76, \infty)[/tex]

Answer: 144

Step-by-step explanation:

ABD plus DBC makes up ABC so when you add the two it will give you a whole (76+68).

Answer:

The sum of a and b is 12.

Step-by-step explanation:

Try drawing this figure. ABCD would actually be a triangle, rather than the common quadrilateral you would expect -  considering there are 4 points plotted. Therefore, we would have to find the distance between respective points ( 0, 1 ) and ( 2, 5 ) / ( 2, 5 ) and ( 7, 0 ) / ( 0, 1 ) and ( 7, 0 ). Let's apply the distance formula and calculate the distance between each point, therefore determining the perimeter.

Distance between points ( 0, 1 ) and ( 2, 5 )

= [tex]\sqrt{(2-0)^2+(5-1)^2}[/tex]

= [tex]\sqrt{(2)^2+(4)^2}[/tex]

= [tex]\sqrt{4+16}[/tex]

= [tex]\sqrt{20}[/tex] = [tex]2\sqrt{5}[/tex]

Distance between points ( 2, 5 ) and ( 7, 0 )

= [tex]\sqrt{(7-2)^2+(0-5)^2}[/tex]

= [tex]\sqrt{5^2+(-5)^2}[/tex]

= [tex]\sqrt{25+25}[/tex]

= [tex]\sqrt{50}[/tex] = [tex]5\sqrt{2}[/tex]

And you can calculate the distance between points ( 0, 1 ) and ( 7, 0 ) to be exactly [tex]5\sqrt{2}[/tex] as well. Therefore, you can say that the perimeter of this triangle is [tex]2(5\sqrt{2}) + 2\sqrt{5}[/tex] = [tex]10\sqrt{2} + 2\sqrt{5}[/tex]. Note that this is similar to the form we are given. Thus, a = 10, and b = 2 - making it's sum 10 + 2 = 12.

=======================================================

Explanation:

We have two workers, more or less. Worker A gets the job done in 5 hours. Worker B comes along to help. If A and B work together, they get the job done in 4 hours. This assumes neither worker hinders the other.

Worker A's rate is 1/5 of a job per hour. In other words, after 1 hour, 1/5 of the job is done.

The combined rate is 1/4 for similar reasoning

Worker B's rate is 1/x where x represents how long it takes worker B to get the job done on its own.

The equation to solve is

1/5 + 1/x = 1/4

Note how 1/5 and 1/x represents the sum of the individual rates to get the combined rate 1/4

To solve this equation, it helps to clear out the fractions. Multiply every term by the LCD 20x

20x(1/5 + 1/x) = 20x(1/4)

20x(1/5) + 20x(1/x) = 20x(1/4)

4x + 20 = 5x

From here you can probably see solving this is relatively easy

4x+20 = 5x

20 = 5x-4x

20 = x

x = 20

Therefore, it will take 20 hours for worker B to get the job done on its own.

Going back to the processing context, it takes 20 hours for the new processor to download the movie. This is where the new processor is working alone without help from the original processor.

----------------

Side note: downloading a movie really depends on internet speed rather than processor speed.

Answer:

44 years old

Step-by-step explanation:

Let the age of Jasper be j years old now.

Now:

Jasper➣ j

Simon ➣ j/2

12 years ago:

Jasper➣ j -12

Simon➣ j/2 -12

Given that Simon's age=⅕(Jasper's age),

j/2 -12= ⅕(j -12)

Multiply by 5 on both sides,

2.5j -60= j -12

2.5j -j= 60 -12

Simplify:

1.5j= 48

÷1.5 on both sides:

j= 48 ÷1.5

Simplify:

j= 32

12 years time:

Jasper➣ j +12

Thus, Jasper's age

= 32 +12

= 44

Answer:

44 years

Step-by-step explanation:

Let Jasper's and Simon's ages be represented by J and S respectively.

From the first statement, J = 2S

From the second statement, (S - 12) = 1/5(J - 12)

J = 2S

S = J/2

S - 12 = 1/5(J - 12)

J/2 - 12 = J/5 - 12/5

Multiply each term by 10

5J - 120 = 2J - 24

5J - 2J = -24 + 120

3J = 96

J = 96/3 = 32

Jasper's present age is 32 years

In 12 years' time, Jasper's age will be 32 + 12 = 44 years

Answer:

-7 * (1/3) ^ (n-1)

Step-by-step explanation:

I think the question should be related to going from recursive to explicit form, therefore:

We have that the recursive formula for the given geometric sequence is:

a1 = -7

an = (an-1) * (1/3)

With the above we can assume that:

r = 1/43

following the rule of the explicit formula that is given by:

an = a1 * (r) ^ (n-1)

we substitute and we have:

an = -7 * (1/3) ^ (n-1)

Therefore the explicit formula from the given data would be:

an = -7 * (1/3) ^ (n-1)

Answer:

4/3

Step-by-step explanation:

We can find the slope by using the formula

m = (y2-y1)/(x2-x1)

We need two points ( 5,1) and ( 8,5)

m = ( 5-1)/(8-5)

    = 4/3

Answer:

b. 11 apples; 1 orange

Step-by-step explanation:

We test each option, and see if the total is $3.50(what you spend). If the result is different, it is not a possible solution.

a. 1 apple; 11 oranges

1 apple for $0.20

11 oranges for $0.30 each

0.20 + 11*0.30 = $3.50

Possible solution

b. 11 apples; 1 orange

11 apples for $0.20 each

1 orange for $0.30

11*0.2 + 0.3 = 2.5

Not $3.5, so this is not a possible solution.

This is the answer

c. 7 apples; 7 oranges

7*0.2 + 7*0.3 = $3.5

Possible

d. 4 apples; 9 oranges

4*0.2 + 9*0.3 = $3.5

Possible

Answer:

The margin of error  = 2.13

Step-by-step explanation:

Explanation:-

Given random sample size 'n' =19

mean of the sample(x⁻) = 55 applicants

Given standard deviation of the Population(S.D)  = 4

Given confidence intervals are

((52.87.57.14)

we know that The Margin of error is determined by

[tex]M.E = Z_{\alpha } \frac{S.D}{\sqrt{n} }[/tex]

The confidence intervals are determined by

(x⁻ - M.E , x⁻+ M.E)

Step(ii):-

Given confidence intervals are

((52.87.57.14)

Now equating

(x⁻ - M.E , x⁻+ M.E) = ((52.87  , 57.14)

Given mean of the sample x⁻ = 55

( 55 - M.E , 55 + M.E) =((52.87.57.14)

   Equating

                55 - M.E = 52.87

                M.E = 55 - 52.87

                M.E = 2.13

Final answer:-

The margin of error  = 2.13

Answer:

[tex]X \sim Unif (a=40, b=60)[/tex]

And for this case we want to find the probability density function and we know that is given by:

[tex] f(x) =\frac{1}{b-a}=\frac{1}{60-40}= \frac{1}{20}, 40\leq X\leq 60[/tex]

Step-by-step explanation:

Let X the random variable who represent the length of time it takes students to complete a statistics examination. And the distribution for x is given by:

[tex]X \sim Unif (a=40, b=60)[/tex]

And for this case we want to find the probability density function and we know that is given by:

[tex] f(x) =\frac{1}{b-a}=\frac{1}{60-40}= \frac{1}{20}, 40\leq X\leq 60[/tex]

Answer:

The original digit is 62

Step-by-step explanation:

Let the Tens be represented with T

Let the Units be represented with U

Given:

Unknown Two digit number

Required:

Determine the number

Since, it's a two digit number, then the number can be represented as;

[tex]T * 10 + U[/tex]

From the first sentence, we have that;

[tex]T = 4 + U[/tex]

[tex]T = 4+U[/tex]

Interchanging the digit, we have the new digit to be [tex]U * 10 + T[/tex]

So;

[tex](U * 10 + T) + (T * 10+ U) = 88[/tex]

[tex]10U + T + 10T + U= 88[/tex]

Collect Like Terms

[tex]10U + U + T + 10T = 88[/tex]

[tex]11U + 11T = 88[/tex]

Divide through by 11

[tex]U + T = 8[/tex]

Recall that [tex]T = 4+U[/tex]

[tex]U + T = 8[/tex] becomes

[tex]U + 4 + U = 8[/tex]

Collect like terms

[tex]U + U = 8 - 4[/tex]

[tex]2U = 4[/tex]

Divide both sides by 2

[tex]U = 2[/tex]

Substitute 2 for U in [tex]T = 4+U[/tex]

[tex]T = 4 + 2[/tex]

[tex]T = 6[/tex]

Recall that the original digit is [tex]T * 10 + U[/tex]

Substitute 6 for T and 2 for U

[tex]T * 10 + U[/tex]

[tex]6 * 10 + 2[/tex]

[tex]60 + 2[/tex]

[tex]62[/tex]

Hence, the original digit is 62

Answer:

4 sandwiches

Step-by-step explanation:

To find the answer, all we have to do is 238 / 54 which is about 4.

Answer:

Answer is (D) n

Step-by-step explanation:

Probability density function defines the likelihood of an outcome for a discrete random variable or a continuous random variable whose integral gives the probability that the value of the variable lies in the same interval.

The constant here is C

CX" implies CX prime prime (meaning that X has been differentiated twice).

The value of C is n, which is the number of values of X.

Answer:

The probability that at least one of the 5 donors has Group O blood type is 0.9497.

Step-by-step explanation:

We can model this as a binomial random variable, with n=5 (the sample size) and p=0.45.

The probability that exactly k donors have Group O blood type in the sample can be written as:

[tex]P(x=k) = \dbinom{n}{k} p^{k}(1-p)^{n-k}\\\\\\P(x=k) = \dbinom{5}{k} 0.45^{k} 0.55^{5-k}\\\\\\[/tex]

We have to calculate the probability P(x≥1). In this case it easy to substract from 1 the probabitity that x is exactly 0:

[tex]P(X\geq1)=1-P(x=0)\\\\\\P(x=0) = \dbinom{5}{0} p^{0}(1-p)^{5}=0.55^5=0.0503\\\\\\P(x\geq1)=1-0.0503=0.9497[/tex]

Answer:

x = 33 degrees.

Step-by-step explanation:

You can see that there is triangle ABC. There are 180 degrees in a triangle. One angle of the triangle is 42 degrees, and the other is 105 degrees. 105 + 42 = 147. The angle at point C would then be 180 - 147 = 33 degrees.

Because lines BC and DE are parallel, you can say that the 33 degree angle and the x-degree angle are the same, since they are alternate angles. Hence, the x is 33 degrees.

Answer:

95 ft²

Step-by-step explanation:

Given:

regular pyramid with,

Square base of side length (s) = 5 ft

Slant height (l) = 7 ft

Required:

Surface area

Solution:

Surface area of a regular pyramid = ½*P*l + B

Where,

P = perimeter of the square base = 4(s) = 4(5) = 20 ft

l = slant height = 7 ft

B = area of base = s² = 5² = 25 ft²

Surface area = ½*20*7 + 25

= 10*7 + 25

= 70 + 25

Surface area of regular pyramid = 95 ft²

Answer:

(1) The between groups degrees of freedom is 2.

(2) TRUE.

(3) The correct option is (a).

Step-by-step explanation:

(1)

The between groups degrees of freedom for the study is:

[tex]\text{df}_{B}=k-1\\=3-1\\=2[/tex]

Thus, the between groups degrees of freedom is 2.

(2)

The hypothesis for he one-way ANOVA is:

H₀: All the means are equal.

Hₐ: At least one of the mean is not equal.

The output of the ANOVA test is attached below.

The p-value of the test is 0.00005.

p-value = 0.00005 < α = 0.05

Thus, the result is statistically significant.

The statement is TRUE.

(3)

As the p-value of the test is less than the significance level, the researcher should make the decision to reject the null hypothesis.

The correct option is (a).

I'm not sure what exactly you did wrong, but I agree with you that the sample size is too small, so the correct answer will probably be the fourth options. Hope that this gives you some confidence, and 'm sorry not to be able to help you any further...

Answer:

7,273 Pesos

Step-by-step explanation:

1 Peso = $0.055

The formula below converts pesos to dollars:

1 Peso x 0.055 = $1

The formula below converts dollars to pesos:

$1/0.055= 1 Pesos

We use the second formula because we are coverting

from dollars to pesos.

$400/0.055=7,273 Pesos

Answer:

22

Step-by-step explanation:

If one Mexican peso is .055 U.S dollars that means it has a greater value than the dollar so we can make the following ratio 1:.055. But if the .055 is a 400 1:400 we just multiply to get 22.

Answer:

B. [tex]4^2[/tex]

Step-by-step explanation:

[tex]4^7 \times 4^{-5}[/tex]

Apply rule (if bases are same) : [tex]a^b \times a^c = a^{b + c}[/tex]

[tex]4^{7 + -5}[/tex]

Add exponents.

[tex]=4^2[/tex]

Answer:

Step by step explanation

[tex] {4}^{7} \times {4}^{ - 5} [/tex]

Use product law of indices

i.e

[tex] {x}^{m} \times {x}^{n} = {x}^{m + n} [/tex]

( powers are added in multiplication of same base)

[tex] = {4}^{7 + ( - 5)} [/tex]

[tex] = {4}^{7 - 5} [/tex]

[tex] = {4}^{2} [/tex]

Hope this helps...

Best regards!

Answer:

Raining Company and Tanning Company

An Uncollectible Expense of $17,500 will be credited to the Allowance for Doubtful Accounts to bring the credit balance to $20,000.

Step-by-step explanation:

Since the accounts receivable balance is $200,000, there is nothing to do with the credit sales of $1,300,000.

The Allowance for Doubtful Accounts after adjustment should have a credit balance of $20,000 ($200,000 x 10%).

With a credit balance of $2,500 before adjustment, it will be adjusted (credited) with Uncollectible Expense of $17,500.  This brings the adjusted balance to $20,000 which represents 10% of the accounts receivable balance of $200,000.

Note that the Allowance for Doubtful Accounts is a contra (credit) account to the Accounts Receivable account.  This allowance is a way to prudently provide for credit risk as required by Generally Accepted Accounting Principles.

Answer:

x > -2

Step-by-step explanation:

2(3x–1)>4x–6

Divide each side by 2

2/2(3x–1)>4x/2–6/2

3x-1 > 2x-3

Subtract 2x from each side

3x-2x-1 > 2x-3-2x

x-1 > -3

Add 1 to each side

x-1+1 > -3+1

x > -2

Answer:

a) The sample mean is M=200.

The sample standard deviation is s=13.19.

b) Right-tailed. The null and alternative hypothesis are:

[tex]H_0: \mu=195\\\\H_a:\mu> 195[/tex]

c) At a significance level of 0.01, there is  notenough evidence to support the claim that the arrival rate is significantly higher than 195.

Step-by-step explanation:

We start by calculating the sample and standard deviation.

The sample size is n=30.

The sample mean is M=200.

The sample standard deviation is s=13.19.

[tex]M=\dfrac{1}{n}\sum_{i=1}^n\,x_i\\\\\\M=\dfrac{1}{30}(210+215+200+. . .+221)\\\\\\M=\dfrac{6000}{30}\\\\\\M=200\\\\\\s=\sqrt{\dfrac{1}{n-1}\sum_{i=1}^n\,(x_i-M)^2}\\\\\\s=\sqrt{\dfrac{1}{29}((210-200)^2+(215-200)^2+(200-200)^2+. . . +(221-200)^2)}\\\\\\s=\sqrt{\dfrac{5048}{29}}\\\\\\s=\sqrt{174.07}=13.19\\\\\\[/tex]

This is a hypothesis test for the population mean.

The claim is that the arrival rate is significantly higher than 195.  As we are interested in only the higher tail for a significant effect, this is a right-tailed test.

Then, the null and alternative hypothesis are:

[tex]H_0: \mu=195\\\\H_a:\mu> 195[/tex]

The significance level is 0.01.

The standard deviation of the population is known and has a value of σ=13.

We can calculate the standard error as:

[tex]\sigma_M=\dfrac{\sigma}{\sqrt{n}}=\dfrac{13}{\sqrt{30}}=2.373[/tex]

Then, we can calculate the z-statistic as:

[tex]z=\dfrac{M-\mu}{\sigma_M}=\dfrac{200-195}{2.373}=\dfrac{5}{2.373}=2.107[/tex]

This test is a right-tailed test, so the P-value for this test is calculated as:

[tex]\text{P-value}=P(z>2.107)=0.018[/tex]

As the P-value (0.018) is bigger than the significance level (0.01), the effect is not significant.

The null hypothesis failed to be rejected.

At a significance level of 0.01, there is  notenough evidence to support the claim that the arrival rate is significantly higher than 195.

Hope you understand :)