MATHEMATICS HIGH SCHOOL

Find the product: (5x + 5y) (x + 4y)A. 4x2 +22ry - 12y2
B.5x2+ 20y2
c.5x2 + 25xy + 20y2
D. 35x2 - 54ry + 16y2​

Answers

Answer 1
Answer:

Answer:

c

Step-by-step explanation:

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Two gears are connected and are rotating simultaneously. The smaller gear has a radius of 3 inches, and the larger gear has a radius of 7 inches.two circles touching at one point. Larger circle has radius of 7 inches. Smaller circle has radius of 3 inches. Part 1: What is the angle measure, in degrees and rounded to the nearest tenth, through which the larger gear has rotated when the smaller gear has made one complete rotation? Part 2: How many rotations will the smaller gear make during one complete rotation of the larger gear? Show all work.
1.solve the following equation for y 3x- 2y= 62. solve the following equation 1/3(6x-9)= 3/4(4x-8)3. solve 3(2x-1)/4= x + 7/2 the 3(2x-1) is over the 4 and the x + 7 is over the 2 i really dont understand them
F(x)=x2+3x and g(x)=2x2, find (f ∘ g)(−1).?? ?//
Solve the equation. x + 1/6 = 6 A. x = -6 1/6 B. x = -5 5/6 C. x = 5 5/6 D. x = 6 1/6

Solve the linear equation: 3.4 + 2(9.7 – 4.8x) = 61.2 What are the possible steps involved in solving this equation? Check all that apply.

Answers

Answer:

Distribute 2 to 9.7 and -4.8x

Combine 3.4 and 19.4

Subtract 22.8 from both sides

Divide both sides by -9.6.

Step-by-step explanation:

x would equal -4

hope that helps

Neveah goes out to dinner at a restaurant. The bill for dinner is $57.25, and Neveah gives the server a 20% tip. What is the total cost for dinner? Need answer please :(

Answers

The total cost he paid is $68.7

What is percentage?

Percentage, a relative value indicating hundredth parts of any quantity. One percent (symbolized 1%) is a hundredth part;

Given:

Bill for dinner is $57.25

20% tip was given

So, 20% on 57.25 is

=0.20 * 57.25

=11.45

Hence, total he paid = 57.25 +11.45 = 68.7

Learn more about percentage here:

brainly.com/question/13244100

#SPJ2

Answer:

11.45 + 57.25

Step-by-step explanation:

$68.70 is the correct answer because the question asks WHAT IS THE TOTAL COST FOR THE DINNER

Tell whether or not the value is a solution to the inequality

Answers

Answer:

Yes, n = -2.9 is a solution to the given inequality.

Step-by-step explanation:

To determine if n = -2.9 is a solution to the inequality 10.4 ≥ -2n + 4.6, substitute the value of n into the inequality.

10.4 ≥ -2(-2.9) + 4.6

10.4 ≥ 5.8 + 4.6

10.4 ≥ 10.4

Since the last line of the inequality states that 10.4 is greater than or equal to 10.4, which is true, this means that the original inequality holds true when n = -2.9.

So, n = -2.9 is a valid solution to the inequality 10.4 ≥ -2n + 4.6.

Find the value of each of the following:125% of 4 hours 40 minutes

Answers

Answer:

The value of each of the numbers is 125% of 4 hours 40 minutes is equal to 5 hours 50 minutes.

If this helped you let me know. If not, I will improve and make sure my work is correct. Have a nice day!

While waiting for a video game to download you notice that 30% of 32,000 kilobytes have been dowloaded so far

Answers

30% of 32000 will be 32000 multiplied by 0.3 which would equal 9600 kilobytes
30% and 32 000 kb have been downloaded so far.

Let the total be x.

(30/100)*x = 32000

0.3x = 32000

x = 32000/0.3

x  ≈ 106 666.667  kb

So the total is ≈ 106 666.667 kb

Hope this helps.

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
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