Find the value of x. A) 71 B) 72 C)73 D)75

What is help needed on?

Answer:

a⁸

Step-by-step explanation:

Rule: a^x. X a^y = a^x+y

Answer: This is written in Expanded form.

Step-by-step explanation: The number is 6,915, to write a number in expanded form, write it's place values by the number it's in.

Ex: Expanded form of 5,731: 5,000 + 700 + 30 + 1

Answer:

0.430

Step-by-step explanation:

Product has four parts :

For proper functioning, each part must function :

Let the 4 parts be:

A, B, C and D

Proper functioning probability :

A and B = 0.79

C and D = 0.83

For proper functioning :

P(A) * P(B) * P(C) * P(D)

0.79 * 0.79 * 0.83 * 0.83

= 0.42994249

= 0.430

AnswerWE  NEED MORE

Step-by-step explanation:

Answer:

22

Step-by-step explanation:

15/3= 5

25+2=27

27-5= 22

Hope this helps

Answer:

#1 : x= -16.5

#2 : x= 3.6

#3 : x= -75

#4 : x= 10 1/3

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Hope it helps :)

Please mark me brainlist!

Answer:

3

Step-by-step explanation:

8x2+4y÷z

when x=12,

y=34,

and z=2?

Answer:

292.9

Step-by-step explanation:

Answer:

To stay within budget, she must use 4.5 gigabytes.

Step-by-step explanation:

Giving the following information:

Under her cell phone plan, Sofia pays a flat cost of $58.50 per month and $4 per gigabyte. She wants to keep her bill at $76.50 per month.

First, we need to establish the total cost formula:

Total cost= 58.5 + 4*x

x= number of gigabytes

Now, we isolate x:

76.5= 58.5 + 4x

18/4= x

4.5= x

To stay within budget, she must use 4.5 gigabytes.

Answer:

The answer is C) 147 radical thing

Step-by-step explanation:

Trust me and hope this helps!

Answer:

i dont know but my Friends do

Answer: No, she is right

Step-by-step explanation:

[tex]\frac{2x^2+7x+3}{4x+12}[/tex]

Factor the trinomial, what two numbers multiply to equal 6 but add to equal 7. That is 6 and 1.

[tex]\frac{2x(x+3)+(x+3)}{4(x+3)}[/tex]

The (x+3) will cancel

[tex]\frac{2x+1}{4}[/tex]

Answer:

Step-by-step explanation:

lets remove the paranthesis and multiply

-5-3(4x-9)=

=-5-12x+27=

=-12x+22

Answer:

Step-by-step explanation:

Given the expression to calculate the radius r of the base of a cone is given by the equation

r=(3V/piH)

v is the volume = 5in^3

H = 4in

pi = 3.14

Substitute

r = 3(5)/3.14(4)

r = 15/12.56

r = 1.19

r = 1in to the nearest inch

Answer:

Rate of the Eastbound train is 93 mph.

Step-by-step explanation:

Let the speed of the Eastbound train = x miles per hour

And the speed of the West bound train = y mph

Eastbound train travels 14 mph slower than the westbound train,

So the equation will be,

y - x = 14 ----------(1)

If these trains are 400 miles apart after 2 hours,

Distance traveled by the Eastbound train = Speed × Time

                                                              = 2x miles

Distance traveled by the Westbound train = 2y miles

Trains are 400 miles apart after 2 hours,

So the equation will be,

2y + 2x = 400

x + y = 200 ----------(2)

By adding equation (1) and equation (2)

(y - x) + (x + y) = 14 + 200

2y = 214

y = 107 mph

From equation (1)

107 - x = 14

x = 107 - 14

x = 93 mph

Therefore, rate of the Eastbound train is 93 mph.

Puedes separar los grupos en:

los que solo toman clases de piano; p

los que solo toman clases de violin: v

los que toman clases de piano y violin; 5

A) para determinar cuántos estudiantes no toman ni piano ni violin, podemos hallar el número total de estudiantes que toman clases solo de piano y los que toman solo de violín y los que toman ambas clases, de la siguiente forma:

Estudian solo piano, p = 14 - 5= 9

Estudian solo violín, v = 29 - 5 = 24

Estudian ambos: 5

Total de estudiantes que toman clases de esos instrumentos : 9 + 24 + 5 = 38

Por tanto, hay 40 - 38 = 2 estudiantes que no toman clases de piano ni violín.

B) ¿cuántos estudiantes toman clases de piano o violín?

Son los que tocan solo piano, o solo violín o ambos y los  hallamos arriba:  9 + 24 + 5 = 38.

Respuesta: 38

C) ¿Cuántos estudiantes tocan solo violín?

También lo encontramos arriba: son 29 - 5 = 24

Respuesta: 24

Answer:

0.30 of a book / hour or 3/10 of a book per hour.

Step-by-step explanation:

Usually I tell people to put the numbers into decimals. Unfortunately for this question, it won't work. So we have any choice but to do it with fractions.

r = amount / time

amount = 1/4

time = 5/6

r = [tex]\frac{\frac{1}{4} }{\frac{5}{6} }[/tex]

Invert the denominator and multiply

r = [tex]\frac{1}{4} * \frac{6}{5}[/tex]

r = 6 * 1 / (5*4) = 6/20 = 3/10

The answer is 3/10 of a book per hour

5/6 of an hour is almost an hour.

1/4 of a book is 0.25 of a book.

3/10 of a book is 0.30 of a book. So it looks like it is just about right.

Answer:

The first five terms of the recursive sequence are;

5, 12, 19, 26, 33

Step-by-step explanation:

The given sequence is presented as follows;

aₓ = a₍ₓ ₋ ₁₎ + 7

The first term of the sequence, a₁ = 5

Therefore, we have;

a₂ = a₍₂ ₋ ₁₎ + 7 = a₁ + 7 = 5 + 7 = 12

a₃ = a₍₃ ₋ ₁₎ + 7 = a₂ + 7 = 12 + 7 = 19

a₄ = a₍₄ ₋ ₁₎ + 7 = a₃ + 7 = 19 + 7 = 26

a₅ = a₍₅ ₋ ₁₎ + 7 = a₄ + 7 = 26 + 7 = 33

The first five terms of the recursive sequence are therefore;

5, 12, 19, 26, 33.

Answer:

9 / 14 for a brown , 3 / 14 for a blue

Step-by-step explanation:

1) summarize all cards 9 (brown) + 2 (yellow) + 3 (blue)= 14 cards.

2) probability depends on how many cards of a particular color, how more cards, then more probability.  

3) 9 brown cards, so probability = 9 brown cards to divide all cards 14.  

Answer:

Pie is forever but the first 3 numbers re 314

Step-by-step explanation:

Answer:

=−14x+18

Step-by-step explanation:

happy to help ya :)

Answer:

112

Step-by-step explanation:

so you split the question by doing 18 - 2 then do 4 + 3 then you mutiply the answer

Answer:

if the scale is .5 inches for every 10 feet the answer is C.

Answer:

2.1

Step-by-step explanation:

Find the number in the tenth place 1 and look one place to the right for the rounding digit 4. Round up if this number is greater than or equal to 5 and round down if it is less than 5.