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svetoff [14.1K]

3 years ago

5

What do the parentheses mean in the expression 8(5x 9x + 6)?

2 answers:

IRISSAK [1]3 years ago

8 0

Answer:

It means the thing you have to do first the first thing you got do and the 8 that is squishing the parentheses is the number you multiply

Step-by-step explanation:

Vesna [10]3 years ago

6 0

It means that 8 is multiplied by all of them

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PLEASE ANSWER RIGHT AWAY

BabaBlast [244]

ANSWER

The explicit formula is :

$a_n = 8+ 3(n - 1)$

EXPLANATION

The given sequence is

8,11,14,17,20,23,26,...

The first term is

$a_1=8$

The common difference is

d=11-8

d=3

The explicit formula is given by:

$a_n = a_1 + d(n - 1)$

We substitute the values to get,

$a_n = 8+ 3(n - 1)$

7 0

3 years ago

A plane flew 145km/h faster when it was flying with the wind than it would have flown with still air, if it’s speed with the win

pshichka [43]

Answer:

Speed of plane in still air = 825 km/h

Step-by-step explanation:

Given:

Speed of plane with the wind is 145 km/h faster than what it would have with still air.

Speed of plane with wind = 970 km/h

To find speed of plane in still air.

Solution:

Let speed of plane in still air be = $x$ km/h

Thus speed of plane with wind would be given as = $(x+145)$ km/h

Speed of plane with wind is given =970 km/h

So, we have:

$x+145=970$

Solving for $x$ .

Subtracting both sides by 145.

$x+145-145=970-145$

∴ $x=825$ km/h (Answer)

Thus, speed of plane in still air = 825 km/h

8 0

3 years ago

olya-2409 [2.1K]

Here's the solutions :

1. solve for a :

$4a = 20$

$a = \dfrac{20}{4}$

$a = 5$

2. solve for y :

$3y + 9 = 24$

$3y = 24 - 9$

$3y = 15$

$y = \dfrac{15}{3}$

$y = 5$

3. solve for y :

$\dfrac{y}{3} - 5 = 4$

$\dfrac{y}{3} = 5 + 4$

$\dfrac{y}{3} = 9$

$y = 9 \times 3$

$y = 27$

4. solve for k :

$3 = 9 - 4k$

$3 - 9 = -4 k$

$- 6 = - 4 k$

$k = \dfrac{ - 6}{ - 4}$

$k = \dfrac{3}{2} \: \: \: or \: \: 1.5$

5. there's something wrong with this question.

6. solve for x :

$3x + 8 = 2$

$3x = 2 - 8$

$3x = - 6$

$x = \dfrac{ - 6}{3}$

$x = - 2$

i hope it helped...

6 0

2 years ago

Read 2 more answers

Please fill in the blank

Jobisdone [24]

So 2 to the 3rd power is 8 and 2 to the -3 power would be negative 8.Now u multiply 8 and negative 8 and u get -64.So 2 to the to the -32 power should be the answer.hope this can help u!

8 0

3 years ago

Expand the exppresion -7(k-3)

Lana71 [14]

Answer:

-7k+21

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers