MATHEMATICS HIGH SCHOOL

This is an urgent!
Can you help me with question 22, 23, 24 and 25 please. Thanks you
This is an urgent! Can you help me with question - 1

Answers

Answer 1
Answer: 22-45 (that is the upper bound)
23-9g/cm (cm cubed) (density= mass/volume)
24- not sure
25- 125.7 (\pi x 5 then x by 8[/tex]

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A surface area of a cube is 96cm. What is the length of one side? What is its volume

Answers

You are giventhe surface area of the cube which is 96cm2. You are asked to find the lengthof one side and its volume. Note that the surface area of the cube is equal to6 times the square root of s (the side of the cube) and the volume is the cuberoot of s. So, 

SA = 6*s^2
96cm2 = 6*s^2
s^2 = 16cm
s = 4cm,this is the length of one side. 

V = s^3
V = (4)^3
V = 64cm3,this is the volume of the cube.
12, 96/8 equals 12, so therefore it is 12 cm cubed

Find an equation of the line satisfying the given conditions

Through (6,4); perpendicular to 3X + 5Y =38

Answers

To answer this, we will need to know:

• The slope of the equation we are trying to get
• The point it passes through using the 

First, we will need to find the slope of this equation. To find this, we must simplify the equation 3x+5y=38 into y=mx+b form. Lets do it!

3x+5y=38
= 5y = -3x+38 (Subtract 3x from both sides)
= y= -(3)/(5)x+ (38)/(5) (Divide both sides by 5) 

The slope of a line perpendicular would have to multiply with the equation we just changed to equal -1. In other words, it would have to equal the negative reciprocal.

The negative reciprocal of the line given is (5)/(3). 

Now that we know the slope, we have to find out the rest of the equation using the slope formula, which is:

(y-y _(1) )/(x- x_(1) )=m

Substituting values, we find that:

(y-4)/(x-6)= (5)/(3)

By simplifying this equation to slope-intercept form (By cross-multiplying then simplifying), we then get that: 

y= (5)/(3)x-6 , which is our final answer.

Thank you, and I wish you luck.
(6,4); 3x + 5y =38 \ subtract \ 3x \ from \ each \ side \n \n 5y = -3x + 8 \ divide \ each \term \ by \ 5 \n \n y = -\frac{3} {5}x + (38)/(5)\n \n The \ slope \ is :m _(1) = - (3)/(5) \n \n If \ m_(1) \ and \ m _(2) \ are \ the \ gradients \ of \ two \ perpendicular \n \n lines \ we \ have \ m _(1)*m _(2) = -1

m _(1) \cdot m _(2) = -1 \n \n -(3)/(5) \cdot m_(2)=-1 \ \ / \cdot (-(5)/(3)) \n \n m_(2)=(5)/(3)

Now \ your \ equation \ of \ line \ passing \ through \ (6,4) would \ be: \n \n y=m_(2)x+b \n \n4=(5)/(\not3^1) \cdot \not 6^2 + b

4=5 \cdot 2+b\n \n4=10+b \n \nb=4-10\n \nb=-6 \n \n y = (5)/(3)x -6

A car salesperson sells cars at prices ranging from $5,000 to $45,000. the histogram shows the distribution of the numbers of cars he expects to sell over the next 10 years. the median of the car is ___.

- $20,000
- $25,000
- $30,000
- $40,000

the distribution exhibits ___.

- a negative skew
- a positive skew
- symmetry
- uniformity throughout

Answers

Answer :

Given that : a car salesperson sells cars at prices ranging from $5,000 to $45,000.

So, The least price = $5000

The largest price = $45000

\implies Median=(5000+45000)/(2)\n\n\implies Median = \$25000

Therefore, The correct option is B. $25000

Now, we need to state what the distribution exhibits

From the graph we can see at the both sides of the median the graph is similar on the either side.

⇒ The graph is symmetrical about the median.

Hence, The distribution exhibits symmetry.

Therefore, The correct option is C. Symmetry

Answer: the correct answer is $25,000 (b)

&

The Second answer is symmetry (c)

Step-by-step explanation:

which are the roots of the quadratic function f(b) = b2 – 75? check all that apply. b = 5 square root of 3 b = -5 square root of 3 b = 3 square root of 5 b = -3 square root of 5 b = 25 square root of 3 b = -25 square root of 3

Answers

The answers are b = 5 square root of 3; b = -5 square root of 3. f(b) = b^2 – 75. If f(b) = 0, then b^2 – 75 ) 0. b^2 = 75. b = √75. b = √(25 * 3). b = √25 * √3. b = √(5^2) * √3. Since √x is either -x or x, then √25 = √(5^2) is either -5 or 5. Therefore. b = -5√3 or b = 5√3.

Answer:

b=5√(3) and b=-5√(3) are the roots of given quadratic equation.

Step-by-step explanation:

Given quadratic equation is f(b)=b^2-75

We have to check all the given options.

If the value of f(b) gives 0 when put the value of b in above equation then only that b value is the root of quadratic equation.

b=5√(3): (5√(3))^(2)-75=75-75=0

b=-5√(3): (-5√(3))^(2)-75=75-75=0

b=3√(5): (3√(5))^(2)-75=45-75=30\neq 0

b=-3√(5): (-3√(5))^(2)-75=45-75=30\neq 0

b=25√(3): (25√(3))^(2)-75=1875-75=1800\neq 0

b=-25√(3): (-25√(3))^(2)-75=1875-75=1800\neq 0

hence, only first two values b=5√(3),-5√(3) gives the value of f(b)=0 .

⇒ b=5√(3) and b=-5√(3) are the roots of given quadratic equation.

83% of408 ndjfjjfjfjfjfjfjfjfjfjfjfjfnfnnfndndnd

Answers

Answer:

338.64

Step-by-step explanation:

Multiply 408 by .83 and get 338.64.

Determine whether the forces in the pair are pulling at right angles to each other.For the values a = 2.9 which is a leg of a right triangle, and value c = 4.2, which is the hypotenuse, find the length of the other leg, b, to the nearest tenth.

2.8
3.0
2.9
1.3

Answers

Given:
right triangle
a = 2.9
c = 4.2

Pythagorean Theorem: a² + b² = c²

missing value of b.

b² = c² - a²
b² = (4.2)² - (2.9)²
b² = 17.64 - 8.41
b² = 9.23
b = √9.23
b = 3.03 or 3.0 

The value of b is 3.0
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