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3 years ago

Please answer ASAP I’ll mark brainliest

Mathematics

1 answer:

Leni [432]3 years ago

6 0

Answer:

Step-by-step explanation:

Range=highest number - lowest number

let 4 be smallest number so

x=55

let 4 be largest number

x=4-55

=-51

hope this helps u):

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Help me please, I need help I don’t understand this problem

jarptica [38.1K]

The maximum speed of a boat at 30 feet length of water is 0.093 nautical miles/hour or knots.

Step-by-step explanation:

The equation for the maximum speed, s is given by s²= (16/9)x
where, x is the length of the water line in feet.

It is given that, the modeled equation s²= (16/9)x is used to find the maximum speed in knots or nautical miles per hour.

The question is asked to find the maximum speed when the length of the water is 30 feet.

Therefore, to find the maximum speed in 30 feet water, the given modeled equation is used. So, substitute the 30 feet in place of x.

Now, calculating the maximum speed :

s² = (16/9)(30)

s² = 480 / 9

s² = 53.3

Taking square root on both sides,

s = √53.3

s = 7.3

The maximum speed of a boat at 30 feet length of water is 7.3 nautical miles/hour or knots.

6 0

4 years ago

The school carnival is divided into sections.The tanks are in 1/10 of the carnival. Games are in 4/10 of the carnival. Student e

ohaa [14]

Answer: The space given up by the students is 1/4 of the total space.

Step-by-step explanation:

Hi, to answer this question we have to analyze the information given:

Tanks: 1/10

Games: 4/10

Student exhibits: 5/10

Students must give up half of the exhibit space to the other school. So, we have to divide 5/10 by 2.

5/10 ÷ 2/1 = (5x1 ) / (10 x2 ) = 5 /20

Simplified (by 5) = 1 /4

The space given up by the students is 1/4 of the total space.

Feel free to ask for more if needed or if you did not understand something.

6 0

3 years ago

Solve the system of equations for -2x+2y=4

Greeley [361]

You need another equation to be able to solve this

8 0

3 years ago

12x - 29 find x please help

serg [7]

$x = \frac{29}{12}$
or you can wirte like x ≈ 2.416

3 0

3 years ago

Can someone help me with these 5 question I have attached?

Contact [7]

Example 2: x=10

Example 3: x=-1

Example 4: x=35

Example 5: a-b+c=9

Example 6: x=1, x=1/2

Further explanation:

Example 2:

$\sqrt{4x-4} =6$

Taking Square on both sides

$(\sqrt{4x-4})^2 =(6)^2\\4x-4=36\\4x=36+4\\4x=40\\\frac{4x}{4}=\frac{40}{4}\\x=10$

Example 3:

$9+\sqrt{4x+8}=11$

Subtracting 9 from both sides

$9-9+\sqrt{4x+8}=11-9\\\sqrt{4x+8}=2\\$

Taking Square on both sides

$(\sqrt{4x+8})^2=(2)^2\\4x+8=4\\4x=4-8\\4x=-4\\\frac{4x}{4}=-\frac{4}{4}\\x=-1$

Example 4:

$8+\sqrt{x+1}=2$

subtracting 8 from both sides

$8-8+\sqrt{x+1}=2-8\\\sqrt{x+1}=-6$

Taking Square on both sides

$(\sqrt{x+1})^2=(-6)^2\\x+1=36\\$

Subtracting 1 from both sides

$x+1-1=36-1\\x=35$

Example 5:

$\sqrt{a-b+c}=3$

Taking Square on both sides

$(\sqrt{a-b+c})^2=(3)^2\\a-b+c=9\\$

Example 6:

$2\sqrt{2x-1}=4x-2$

Taking square on both sides

$(2\sqrt{2x-1})^2=(4x-2)^2\\4(2x-1)=16x^2+4-16x\\8x-4=16x^2-16x+4\\8x=16x^2-16x+4+4\\8x=16x^2-16x+8\\16x^2-16x-8x+8=0\\16x^2-24x+8=0$

dividng whole equation by 8

$2x^2-3x+1=0\\2x^2-2x-x+1=\\2x(x-1)-1(x-1)=0\\(2x-1)(x-1)=0\\2x-1=0 => x=\frac{1}{2}\\x-1=0 => x=1$

Keywords: Radical Expressions, Examples

Learn more about radical expressions at:

#LearnwithBrainly

3 0

3 years ago