There are 15 boys and 16 girls in Gabriel’s class. One person is chosen at random. What is the probability that the person chosen to hand out books is a girl?

Answer:

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Answer:

18

Step-by-step explanation:

You can multiply 9 x 2 like normal to get 18. Then you look at the signs. They are both negative, meaning their product is positive, making the answer 18.

Answer:

-5

-8

49

Step-by-step explanation:

if a circle has a enter of (-5,-8) the first part looks like

(x+5)²+(y+8)²

to find the radius just plug in x=2 and y= -8

(2+5)²+(-8+8)²

7²+0=49

Answer:

3. 3(n + 6),

4. 5(2n + 4)

Step-by-step explanation:

dunno if its possible to isolate the addition to have it done first without parenthesis.

Answer:

a. Semester 1: 86.8, Semester 2: 87

b. Semester 1: 5.7, Semester 2: 6.3

c. Semester 1 because the standard deviation of the first semester was lower than of the second. This shows that his scores were closer to the mean and therefore he was more consistent.

Step-by-step explanation: Find the mean by taking the sum of the values for each semester and divide that sum by the number of values to find the average. Do this for both semesters. Now, find the absolute value of the difference between the mean and each value of the corresponding data set. Square each if those differences and sum them up. Now divide that sum by the number of data values and take the square root. This number is your standard deviation. You will use the standard deviations to make the comparison for part c. I hope this makes sense and helps!!!!

Answer:

35%

Step-by-step explanation:

This is simple, just use the formula: Number1 / Number 2 x 100 when you use it it will look like: 56/160x100 which 56/100 is 0.35 and 0.35x100 is 35%

Answer:

Solution given:

principal [P]=P

time [T]=4 years

Rate [R]=13%

compound amount=18900

Simple interest=P-18900

we have

simple interest=[tex] \frac{P*T*R}{100} [/tex]

P-18900=[tex] \frac{P*4*13}{100} [/tex]

100P-1890000=52P

48P=1890000

P=1890000/48

P=39375

the sum that amounts =Rs 39375

Answer:

-37 / 4

Step-by-step explanation:

Answer:

(-5,-3)

Step-by-step explanation:

The answer is (-5,-3)

Answer:

x = 88

Step-by-step explanation:

Becuase this is a quadrilateral,  the opposite angles total 180 degrees. So, the opposite of x is 92. That would mean that x + 92 = 180. We subtract 92 from both non-variable sides to get the x by itself. 180 - 92 = 88. 92 - 92 = 0. this leaves us with X = 88

hope this helps

Answer:

Step-by-step explanation:

Chords having equal measures are equidistant from the center of the circle.

Since, VW = XY

Therefore, ZP = ZR = 15 units

A perpendicular line drawn from the center of a circle to the chord is the bisector of the chord.

VR = WR = 20 units

By applying Pythagoras theorem in ΔZRV,

ZV² = ZR² + VR²

ZV² = (15)² + (20)²

ZV = √(225 + 400)

ZV = √625

ZV = 25 units

Therefore, measure of radius ZV = 25 units.

VW = XY [Given]

Therefore, XY = 2(20)

                        = 40 units

5.04 × 10³

This is the scientific notation.

Answer:

5.04*10³

Step-by-step explanation:

5.04*10³

Answer:

2

Step-by-step explanation:

5x + 4y = 8

5*0 + 4y = 8

y = 8/4

y=2

Answer:

b) H0:μ=90, H1:μ≠90

Step-by-step explanation:

The corporation wants to know if the mean number of days is different from the 90 days claimed.

This means that at the null hypothesis, we test if the mean number is the claimed value of 90, and so:

[tex]H_0: \mu = 90[/tex]

The corporations wants to know if the mean number is different, and thus, at the alternate hypothesis, we test if the mean number is different from 90, that is:

[tex]H_1: \mu \neq 90[/tex]

This means that the correct answer is given by option b.

Step-by-step explanation:

Supposed to be next Thursday but I get off this week since I finished half of my classes already.

Answer:

Next Friday so...May 28th

Step-by-step explanation:

Answer:

Yes.

Step-by-step explanation:

A rational number is a number that is a result when you divide two integers.

Answer:

The answer Is 1/3(b-21)

Step-by-step explanation:

x= -1/2 is the answer to your question. Mark as brainliest!!!!

Answer:

(3d+3) + (3d+3)

Step-by-step explanation:

Answer:

45

Step-by-step explanation:

volume=length x width x height

5x3x3=45

Answer:

0

Step-by-step explanation:

0 is an integer.

plz mark as brainliest

please show the answer choices

Answer:

14 weeks.

Step-by-step explanation:

160/12= 13.8

13 weeks earns her $158

14 weeks earns her $160. So the fewest number of weeks she needs is 14.

Answer:

x = 12

Step-by-step explanation:

We will label the unknown interior angle of the triangle d.

14x - 19 + d = 180

14x + d = 199

d = 199 - 14x

199 - 14x + 3x + 9x + 7 - 2 = 180

199 - 2x +5 = 180

204 - 2x = 180

204 = 180 + 2x

2x = 24

x = 12

Answer:

C : VALID

Step-by-step explanation:

Answer:

Average Rate of change = 2

Step-by-step explanation:

Given - A rabbit hops 8 meters in one second. After 7 seconds, the rabbit has hopped 20 meters.

To find - What is the rabbit's average rate of change?

Formula used -

Average rate of change of a function f(x) in an interval [a, b] is [tex]\frac{f(b) - f(a)}{b - a}[/tex]

Proof -

Given that,

In 1 second - Rabbit hoops 8 meters

In 7 seconds - Rabbit hoops 20 meters

So,

Average Rate of change = [tex]\frac{20 - 8}{7 - 1}[/tex]

                                         = [tex]\frac{12}{6}[/tex]

                                         = 2

⇒Average Rate of change = 2

Answer:

124 cm²

Step-by-step explanation:

Answer:

124

Step-by-step explanation:

Split it into 2 shapes. I chose 2 rectangles 6 by 14 and 5 by 8. then I just found those areas and added it together

Answer:

f'(x) = 6/x

Step-by-step explanation:

1. Use logarithm rules to move the power to the front so ln(x)^6 becomes 6 ln(x).

2. Differentiate ln(x) which is always 1/x

3. multiply 1/x by the 6

6/x