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RSB [31]
3 years ago
12

How do I simplify the square root: 7 times the square root of 81

Mathematics
1 answer:
DENIUS [597]3 years ago
7 0
7\cdot\sqrt{81}=7\cdot\sqrt{9\cdot9}=7\cdot9=\boxed{63}
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3. Michelle wants to save at least $3,500. She has already put away
algol [13]

The equation that represents the scenario is 3500 < 360w + 600.

<h3>What is the equation that represents the scenerio?</h3>

Here are inequality signs and what they mean:

  • > means greater than
  • < means less than
  • ≥ means greater than or equal to
  • ≤ less than or equal to

Total amount Michelle wishes to save < total amount already saved + (number of weeks x amount made weekly)

$3500  < $600 + ($360w)

To learn more about inequality, please check: brainly.com/question/5031619

#SPJ1

8 0
2 years ago
What is the range of y equals square root of x +7+5?
Elodia [21]

The range of a function are the dependent variables for which the function exists. The range of the function will be y ≥ 5

<h3>Range of a function</h3>

The range of a function are the dependent variables for which the function exists

Given the function below;

f(x) = √x+7 + 5

The function can only exist for values less than or equal to -7 that is x ≤ -7.

Substitute

f(-7) =  √-7+7 + 5

f(-7) = 5

The range of the function will be y ≥ 5

Learn more on range here: brainly.com/question/2264373

#SPJ1

8 0
2 years ago
5x + 6y = 32
velikii [3]

Answer:

The variable y is eliminated.

Step-by-step explanation:

To add a system of equations, we add the common terms. x with x, y with y and values with values.

In this question:

5x + 6y = 32

5x – 6y = 8

Adding:

5x + 5x + 6y - 6y = 32 + 8

10x = 40

So the variable y is eliminated.

3 0
3 years ago
I need help on this. An answer and an explanation would be great!!
charle [14.2K]

Answer:

60 & 55

Step-by-step explanation:

1. the sum of the angles 1; 2 and 3 is 180°, then

m∠1=m∠2=m∠3; ⇒m∠3=60°;

2. m∠3=m∠r; ⇒ m∠r=60°;

3. m∠α= 180-(m∠r+65°)°; ⇒ m∠α=55°

all the details are in the picture.

4 0
3 years ago
PART A
Harrizon [31]

Answer: y=2.3x+160.7

Step-by-step explanation: correct on plato :)

7 0
3 years ago
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