Can someone please help me

Answer:

The answer is B

This is because if we know that Alex sent the questionnaire only to those who live near her, we can infer that this is biased.

Answer:

B: Alex sent the questionnaire only to those who live near her

Step-by-step explanation:

<3

Answer:

No if you see this sign means (<) that the number in like this1<2 that 2 is greater than 1 so it would be no because it would be this way 9>7 not 9<7

Step-by-step explanation:

Answer:

its C

Step-by-step explanation:

A= 1/5

B= 2/15

i took the test

Answer:

A= 1/5

B= 2/15

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

Answer:

174.14 im not sure tho

Step-by-step explanation:

Answer:

the answer is -6,5

Step-by-step explanation:

just look at the left side ( the x axis )first then right(the y axis)

Answer:

Write  

1

as a fraction with a common denominator.

−

√

5

5

−

3

5

Combine the numerators over the common denominator.

−

√

5

−

3

5

Subtract  

3

from  

5

.

−

√

2

5

Rewrite  

√

2

5

as  

√

2

√

5

.

−

√

2

√

5

Multiply  

√

2

√

5

by  

√

5

√

5

.

−

(

√

2

√

5

⋅

√

5

√

5

)

Combine and simplify the denominator.

Tap for more steps...

−

√

2

√

5

5

Simplify the numerator.

Tap for more steps...

−

√

10

5

The result can be shown in multiple forms.

Exact Form:

−

√

10

5

Decimal Form:

−

0.63245553

…

()|[]√≥°

789≤θ

456

Answer:

160

Step-by-step explanation:

Add up all the numbers

48 + 67 + 16 + 29 = 160

Answer: D. 160

Step-by-step explanation:

Answer:

Step-by-step explanation:

Determine the types of tickets involved.

There are student tickets and adult tickets.

Create a table to organize the information.

Type  

Number

Value ($)

Total Value ($)

Student    

6

Adult    

9

1

,

506

Step 2. Identify what you are looking for.

We are looking for the number of student and adult tickets.

Step 3. Name. Represent the number of each type of ticket using variables.

We know the number of adult tickets sold was  

5

 less than three times the number of student tickets sold.

Let  

s

 be the number of student tickets.

Then  

3

s

−

5

 is the number of adult tickets.

Multiply the number times the value to get the total value of each type of ticket.

Type  

Number

Value ($)

Total Value ($)

Student  

s

6

6

s

Adult  

3

s

−

5

9

9

(

3

s

−

5

)

1

,

506

Step 4. Translate: Write the equation by adding the total values of each type of ticket.

6

s

+

9

(

3

s

−

5

)

=

1506

Step 5. Solve the equation.

6

s

+

27

s

−

45

=

1506

33

s

−

45

=

1506

33

s

=

1551

s

=

47

students

Substitute to find the number of adults.

3

s

−

5

=

 number of adults

3

(

47

)

−

5

=

136

 adults

Step 6. Check. There were  

47

 student tickets at  

$6

 each and  

136

 adult tickets at  

$9

 each. Is the total value  

$1506

?

 We find the total value of each type of ticket by multiplying the number of tickets times its value; we then add to get the total value of all the tickets sold.

47

⋅

6

=

282

136

⋅

9

=

1224

_____

1506

✓

Step 7. Answer the question. They sold  

47

 student tickets and  

136

 adult tickets.

Answer: 17.4 m^3

Step-by-step explanation:

V= 1/3 Bh

B=8.3

H=6.3

V=1/3 (8.3)(6.3)

V=17.43

V=17.4m^3

Answer:

the answer: x+2x=18

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

to find the range you must find the biggest number and the smallest number then subtract-

and in your case, the smallest number is 0 and the largest is 9

9-0

=9

**next time try using alcula.com, it'll save you the points**

good luck :)

i hope this helps

brainliest would be highly appreciated

have a nice day!

Answer:

6 hundreds

2 tens

7 ones

Step-by-step explanation:

Un albañil construye una casa en 5 días si debe construir 3 casas cuántos días se demorará

Answer:

3

Step-by-step explanation:

Answer:

I believe it's Option B, hopefully this helps! Sorry if it doesn't

Answer:

5:7

Step-by-step explanation:

Answer:

a = 1

b = -5

c = -14

Step-by-step explanation:

x² - 5x - 14 = 0

where,

a = 1

b = -5

c = -14

-TheUnknownScientist

Answer:

1

-5

-14

Step-by-step explanation:

hope it's helpful

Answer:

74cm^2

Step-by-step explanation:

Answer:

The answer is 37

Step-by-step explanation:

180- 143= 37

Answer:

3.125

Step-by-step explanation:

Kate walks 5 miles in 2 hours (120 minutes)

The distance she can works in 1 hour 15 minutes can be calculated as follows

This can be calculated using proportion

d/75= 5/120

Cross multiply

d×120= 75×5

120d= 375

d= 375/120

= 3.125

Answer:

4,200

Step-by-step explanation:

Tenemos un total de:

4 libros de matemáticas

3 libros de biología

3 libros de religión

10 libros en total.

Ahora vamos a contar la cantidad de opciones que tenemos para cada posicion.

Primer libro (tenemos 10 opciones)

segundo libro (tenemos 9 opciones, porque ya colocamos un libro)

tercer libro (tenemos 8 opciones, porque ya colocamos dos libros)

Con esto ya podemos estimar el número de opciones para cada posicion, y sabemos que el número total de combinaciones es igual al producto entre los números de opciones para cada caso. El número total de combinaciones es:

C = 10*9*8*7*6*5*4*3*2*1 = 10!

Ahora si asumimos que no podemos diferenciar los libros de matemáticas, entonces no debemos contar sus permutaciones (si tenemos 4 libros de matemáticas, tenemos 4*3*2*1 permutaciones = 4! permutaciones). Debemos dividir al numero total de combinaciones por 4!.

Y lo mismo pasa para las 3! permutaciones de los libros de biología y las 3! permutaciones de los libros de religión.

Entonces el número total de combinaciones diferentes es:

[tex]C = \frac{10!}{3!*4!*3!} = \frac{10*9*8*7*6*5*4*3*2*1}{(3*2*1)*(4*3*2*1)*(3*2*1)} = 4,200[/tex]

Hay 4200 diferentes formas de ordenar los libros.

Answer:

-2.3 -  1.2 = -3.5

Step-by-step explanation:

when we’re doing negative adding means subtracting so what I idi was add 2.3 and 1.2 and I got 3.5 so I think what number is bigger it’s -2.3 so since it’s negtive I put a negative that’s how I got it

Answer:

35.4%

Step-by-step explanation:

(100/80) x 27.6

basically 1 of 80 is 1.25 and multiply 1.25 times the money jaylon spent sorry i am really bad at explaining only good at solving

Answer:

34.5%

Step-by-step explanation:

to find the percent of money that was spent, you turn it into a fraction-

27.60/80

=0.345

then to get the percent you multiply-

0.345*100

=34.5%

good luck :)

i hope this helps

brainliest would be highly appreciated

have a nice day!

Answer:

178.98 ft2

Step-by-step explanation:

The approximate area of the path is 179 ft².

The area of the smaller circle is calculated as follows;

A₁ = πr₁²

Where;

A₁ = π x 8²

A₁ = 201.088 ft²

A = πr₂²

Where;

A₂ = π x (11)²

A₂ = 380.18 ft²

A = A₂  - A₁

A = 380.182 ft²  -  201.088 ft²

A = 179.094 ft²

Thus, the approximate area of the path is 179 ft².

Learn more about area of circle here: https://brainly.com/question/12269818

Answer:

AB= 16❤

Step-by-step explanation:

OB= 10

EB²+6²= 10²

EB²= 64

EB=8

2×8=16

The length of line AB in the intersecting chords is determined as 16 units.

The length of line AB is calculated by applying intersecting chord theorem as follows;

The radius of the circle = 10

Applying Pythagorean theorem as follows;

EB² + 6²= r²

where;

EB² + 6²= 10²

EB² = 10² - 6²

EB² = 100 - 36

EB²= 64

EB = √ 64

EB = 8

Since EB is the half of length AB, then the value of the length AB is calculated as;

AB = 2 x 8

AB = 16 units

Learn more about intersecting chords here: https://brainly.com/question/13950364

#SPJ2

Answer:

Step-by-step explanation:

[tex]\frac{-33}{9}+2=\frac{-33}{9}+\frac{2*9}{1*9}\\\\\\=\frac{-33}{9}+\frac{18}{9}\\\\= \frac{-33+18}{9}\\\\=\frac{-15}{9}[/tex]

GCF of 15 and  9 is 3. so divide both numerator and denominator by 3

[tex]= \frac{-5}{3}\\\\= -1\frac{2}{3}[/tex]

Answer:

90

Step-by-step explanation:

Answer:

a is k, b is k and l, c is j and l, d is j and r, thats all i know, lol

Step-by-step explanation:

K is Center, Radius KJ KI,KI, JR diameter.

Here we have given a diagram from the given diagram

Center :- The center of a circle is the point equidistant from the points on the edge

Therefore center is k.

Radius:-The distance from the center of the circle to any point on it's circumference

Radius is KJ,KL,KI

Chord :-The chord of a circle can be defined as the line segment joining any two points on the circumference of the circle.

chord is J and I

Diameter:-In a circle, diameter is a line that passes through the center and meets the circumference at opposite ends.

JR is the diameter.

I have solve first four part of this question

To learn more about the circle visit :

https://brainly.com/question/24375372