Helpppppp

Find the exact value of sin A in simplest radical form.

Answer:

£57.60

9m

3m

Step-by-step explanation:

cost of fencing = perimeter of the fence x cost of half meter x 2

1.2 x 2 x 24 = £57.60

Perimeter = 2 x ( length + width)

let x = width

length = 3x

2 x (3x + x) = 24

divide both sides of the equation by 2

4x = 12

x = 3

Length = 3 x 3 = 9m

Hi there!

[tex]\large\boxed{C. \text{ } \$ 272.50}[/tex]

To begin, we can find the amount he is paid from his hourly wage:

$12.75 × 6  = $76.5

Calculate the commission by adding up the sales to get the total:

$1200 + $2350 $975 + $375 = $4900

4% of $4900 = 4900 × 0.04 = 196

Add the total wage and commission together:

76.5 + 196 = $272.50

Answer:

c 272.50

Step-by-step explanation:

Answer:

B. -8

Step-by-step explanation:

F(x) = 2x

F(-4) = 2(-4) = -8

Answer: -2,-5

Step-by-step explanation:

The red point is located in the 3rd quadrant in the graph. So that means both the y and the x are negative. So first you go by the x value, the point is located on the 2 space left (-) from the origin (center) of the graph and then you have to go 5 spaced down (-). So point A is located at (-2,-5).

Answer:

1 (give brainliest plss)

Step-by-step explanation:

Step-1 : Multiply the coefficient of the first term by the constant 5 • -8 = -40

Step-2 : Find two factors of -40 whose sum equals the coefficient of the middle term, which is -3 .

-40 + 1 = -39

-20 + 2 = -18

-10 + 4 = -6

-8 + 5 = -3 That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -8 and 5

5x2 - 8x + 5x - 8

Step-4 : Add up the first 2 terms, pulling out like factors :

x • (5x-8)

Add up the last 2 terms, pulling out common factors :

1 • (5x-8)

Step-5 : Add up the four terms of step 4 :

(x+1) • (5x-8)

Which is the desired factorization

[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the concept of Quadratic Equations.

Degree of a equation represents the highest power of the varible in the equation, For quadratic equation the degree is 2.

Leading Coefficient are the constant numbers that are significantly multiplied with the variables in the equation.

==> 5x^2 - 3x - 8 = 0

==> 5x^2 -8x +5x -8=0

==> x(5x-8) +1(5x-8)=0

==> (5x-8)(x+1) = 0

Answer:

C

Step-by-step explanation:

Answer:

The confidence Interval is [- 0.7053  10.4521]

a: The  hypotheses  are

H0: μ1=μ2    against the claim Ha :μ1≠μ2

b. The critical value for t∝/2 for 17 d.f  t > 2.508 and  t < -2.111

c. t= -2.8422

d. The calculated value of t= -2.8422 is less than t < -2.11 the critical value therefore we reject H0 and conclude there is a difference between the two means.

Step-by-step explanation:

When the standard deviations are not the same then the confidence intervals for mean differences are calculated as

(x1`-x2`)- t∝/2 √s1²/n1 + s2²/n2 < u1-u2 < (x1`-x2`)+ t∝/2 √s1²/n1 + s2²/n2

x1`= 21        x2`= 27

n1=  10       n2= 14

s1= 5.6       s2= 4.3

The degrees of freedom is calculated using

υ = [s₁²/n1 + s₂²/n2]²/ (s₁²/n1 )²/ n1-1 + (s₂²/n2)²/n2-1

= 17

The t∝/2 for 17 d.f = 2.11

Putting the values

(x1`-x2`)- t∝/2 √s1²/n1 + s2²/n2 < u1-u2 < (x1`-x2`)+ t∝/2 √s1²/n1 + s2²/n2

(21-27) - 2.11√5.6²/10+ 4.3²/14 < u1-u2 <(21-27)  +2.11√5.6²/10+4.3²/14

6- 2.11*2.111 < u1-u2 <  ( 6 )  +2.11*2.111

6- 4.4521 < u1-u2 <  ( 6 )  +5.294

- 1.5479 < u1-u2 <  10.4521

The confidence Interval is [- 0.7053  10.4521]

a: The  hypotheses  are

H0: μ1=μ2    against the claim Ha :μ1≠μ2

The claim is that there is a difference in the average time spent by the two services

b. The critical value for t∝/2 for 17 d.f  t > 2.508 and  t < -2.111

The degrees of freedom is calculated using

υ = [s₁²/n1 + s₂²/n2]²/ (s₁²/n1 )²/ n1-1 + (s₂²/n2)²/n2-1

= 17

c. The test statistic is

t= (x1`-x2`)  /√s1²/n1 + s2²/n2

t= (21-27)  /√5.6²/10+ 4.3²/14

t= -6/2.111

t= -2.8422

d. The calculated value of t= -2.8422 is less than t < -2.11 the critical value therefore we reject H0 and conclude there is a difference between the two means.

Answer:

22

Step-by-step explanation:

I did the math in my head sooo if it's wrong I know why

Answer:

a) Dice and spinner are different objects, with no relation between themselves, and thus her dice rolls and spinning outcomes are independent.

b) [tex]\frac{1}{48}[/tex] probability of her rolling a 4 and spinning an 8.

c) [tex]\frac{1}{8}[/tex] probability of her rolling an even number and spinning a number less than 3.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

A) Are her dice rolls and spinning outcomes independent or dependent?

Dice and spinner are different objects, with no relation between themselves, and thus her dice rolls and spinning outcomes are independent.

B) What is the probability of her rolling a 4 and spinning an 8?

Since the events are independent, we find each separate probability and multiply them.

Probability of rolling a 4:

One side out of 6 on the dice. So

[tex]P(A) = \frac{1}{6}[/tex]

Probability of spinning an 8:

One side out of 8 on the spinner. So

[tex]P(B) = \frac{1}{8}[/tex]

Probability of rolling a 4 and spinning an 8:

[tex]P(A \cap B) = P(A)P(B) = \frac{1}{6} \times \frac{1}{8} = \frac{1}{48}[/tex]

[tex]\frac{1}{48}[/tex] probability of her rolling a 4 and spinning an 8.

C) What is the probability of her rolling an even number and spinning a number less than 3?

Since the events are independent, we find each separate probability and multiply them.

Probability of rolling an even number:

2, 4 or 6(3 sides out of 6). So

[tex]P(A) = \frac{3}{6} = \frac{1}{2}[/tex]

Probability of spinning a number less than 3:

Two numbers(1 or 2) out of 8 on the spinner. So

[tex]P(B) = \frac{2}{8} = \frac{1}{4}[/tex]

Probability of rolling an even number and spinning a number less than 3:

[tex]P(A \cap B) = P(A)P(B) = \frac{1}{2} \times \frac{1}{4} = \frac{1}{8}[/tex]

[tex]\frac{1}{8}[/tex] probability of her rolling an even number and spinning a number less than 3.

Answer:

for what

Step-by-step explanation:

Answer:

59.6

Step-by-step explanation:

:)

Decimal form-59.6

Mixed fraction form-59 2/3

Exact form-179/3

Answer:

14

Step-by-step explanation:

Answer:

1. [tex]6^{8}[/tex]

2. [tex]5^{10}[/tex]

3. [tex]2^{9-5}[/tex]

4. [tex]3^{6}[/tex]

5. [tex]12^8[/tex]

6. [tex](7^2)^2[/tex]

Step-by-step explanation:

have a good day! :)

Answer: Add the other two lengths together. 18plus21

Step-by-step explanation:

Answer:

5555555555555555555555555555555555555 trust

Step-by-step explanation:

The subject is the idea,being or thing being discussed.

Should be "plant". Its the Main thing being discussed.

Answer:

answer: 384

Step-by-step explanation:

Hello! cubes are very simple! since there all the same measure and 6 faces all we have to do is 8 × 8 = 64 sense we know 1 face is 64 we just have to multiply by 6 cause there is 6 faces so

64 × 6 = 384 Hope this helps you!

Answer:

464 students will score between 48 and 75. Using the z-distribution, we measure how many standard deviations each score is from the mean, then find the p-value associated with each score to find the proportion, and from the proportion, we find how many out of 1000.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

It assumes the scores are normally distributed with a mean score of 75 and a standard deviation of 15.

This means that [tex]\mu = 75, \sigma = 15[/tex]

How many students will score between 48 and 75?

First we find the proportion, which is the pvalue of Z when X = 75 subtracted by the pvalue of Z when X = 48. So

X = 75

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{75 - 75}{15}[/tex]

[tex]Z = 0[/tex]

[tex]Z = 0[/tex] has a p-value of 0.5

X = 48

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{48 - 75}{15}[/tex]

[tex]Z = -1.8[/tex]

[tex]Z = -1.8[/tex] has a p-value of 0.0359

1 - 0.0359 = 0.4641

Out of 1000:

0.4641*1000 = 464

464 students will score between 48 and 75. Using the z-distribution, we measure how many standard deviations each score is from the mean, then find the p-value associated with each score to find the proportion, and from the proportion, we find how many out of 1000.

Answer:

1, 6.2 and 7/2

Step-by-step explanation:

Answer:

6.2 = 6.2

-7/2= 3.5

Step-by-step explanation:

Because I know, mark brainliest please

Answer:

21

Add all of the numbers and then divide by how many numbers there are.

Answer:

19

Step-by-step explanation:

I put it in my calculator

Answer:

D. 19

hope this helps

have a good day :)

Step-by-step explanation:

Answer:

option d will match friend

Answer:

Step-by-step explanation:

12²+15² is 369. square root of 369 is 3[tex]\s\sqrt{41[/tex] or 19.2

Answer:

this is the answer

A. (3 x 2) + 5 x 10