Mathematics High School

## Answers

**Answer 1**

**Answer:**

16 + 8y

**Step-by-step explanation:**

2(3 + 4y + 5)

6 + 8y + 10

16 + 8y

**Answer 2**

**Answer:**

32 is the answer I check it

## Related Questions

Write an expression that is equivalent to two over three (4x + 9). (5 points)

eight over three x + 6

eight over three x + 9

two over three x + 6

two over three x + 9

### Answers

**Answer:**

eight over three x + 6

**Step-by-step explanation:**

eight over three x + 6

**Answer:**

A. eight over three x + 6

**Step-by-step explanation:**

8x+18/3=8x/3+18/3=**8/3x+6**

What percent of $8.12 equals $6.09

### Answers

**Answer:**

**roughly 75%**

**Step-by-step explanation:**

Help me plzzz I’m bad at math

### Answers

**Answer:get smart kid **

**Step-by-step explanation:**

In the table below, we are given two annuity plans, A and B, and the amount invested into each plan every month. Given this information, determine which of the two investments is an ordinary annuity, and the amount invested over a 12 month period.

A 13-column table with 2 rows. Column 1 has entries A, B. Column 2 is labeled January with entries 100, blank. Column 3 is labeled February with entries 100, 100. Column 4 is labeled March with entries 100, 100. Column 5 is labeled April with entries 100, 100. Column 6 is labeled May with entries 100, 100. Column 7 is labeled June with entries 100, 100. Column 8 is labeled July with entries 100, 100. Column 9 is labeled August with entries 100, 100. Column 10 is labeled September with entries 100, 100. Column 11 is labeled October with entries 100, 100. Column 12 is labeled November with entries 100, 100. Column 13 is labeled December with entries blank, 100.

a.

Investment A is an ordinary annuity with an annual contribution of $1,100

b.

Investment A is an ordinary annuity with an annual contribution of $100

c.

Investment B is an ordinary annuity with an annual contribution of $1,100

d.

Investment B is an ordinary annuity with an annual contribution of $100

### Answers

**Answer:**

A

**Step-by-step explanation:**

Based on the information given regarding the **annuity**, the correct option is C. **Investment B** is an ordinary annuity with an **annual contribution** of $1,100.

**What is annuity?**

It should be noted that an **annuity** simply means a **contract** that's between an individual and an **insurance** company. It's a form of long term **investment**.

In this case, the **investment** that is an ordinary **annuity**, and the amount invested over a 12 month period will be Investment B with an **annual** contribution of $1,100.

Learn more about **annuity** on:

https://brainly.com/question/25792915

A tiny house roof needs repairing. The slanted sides are both 7 meters long and the base of the roof is 10 meters across. What is the height of the roof at its tallest point?

### Answers

**Answer:**

The slope of a roof is properly known as its pitch and flat roofs have up to approximately 10°.

**Step-by-step explanation:**

For most home styles, roof pitches fall in a range 4/12 (a moderate) slope up to 8/12 (fairly steep). Examples of extreme slopes range from 1/4/ 12 (almost flat) to 12/12 (sloping down at a perfect 45-degree angle

What is the sum?

8+(-12)

О-20

0-4

020

### Answers

**Answer: -4**

**Work: So, to get -4, we need to simplify the equation. If you see any equation with +(- that's subtraction. So, with the rule, this equation is basically 8-12, and that's -4.**

**Answer:**

-4

**Step-by-step explanation:**

8+(-12)

= 8-12

12-8=4

the answer is -4

NEED ASAP

Which best describes the slope of the line that passes through points (0,4) and (4,4)?

undefined

negative

positive

zero

### Answers

**Answer:**

Zero

**Step-by-step explanation:**

Find the slope using **rise over run (y2 - y1) / (x2 - x1)**

**Plug in the points:**

(y2 - y1) / (x2 - x1)

(4 - 4) / (4 - 0)

0 / 4

**= 0**

**So, the slope is zero.**

The perimeter of a rectangle is 230cm and length of a rectangle is 70cm find area and breadth

### Answers

**Answer:**

Breadth=45 cm and Area = 3150

**Step-by-step explanation:**

Length= 70 cm and breadth =?

Perimeter=2(l+b)

or,230=2(70+b)

or,230=140+2b

or,230-140=2b

or,90/2=b

or,b=45cm

Breadth=45cm and Length=70cm

Area=l×b

=70×45

=3150cm^2

Question-:

The perimeter of a rectangle is 230 cm and length of a rectangle is 70 cm. Find area and breadth of the rectangle.

Explanation -:

In this question we are given that the perimeter of a rectangle is 230 cm and the length of the rectangle is 70 cm. We are asked to calculate the area and breadth of a rectangle.

[tex] \small{ \underline{\frak{ First \: we \: will \: calculate \: the \: breadth}}}[/tex]

Let us assume the breadth as b.

We know,

*Perimeter** **=** **2**(**L** **+** **B**)** *

*→** **2**3**0** **=** **2**(**7**0** **+** **b**)** *

*→** **2**3**0**/**2** **=** **7**0** **+** **b*

*→** **1**1**5** **=** **7**0** **+** **b*

*→** **1**1**5** **-** **7**0** **=** **b*

*→** **4**5** **=** **b*

breadth = 45 cm

[tex] \small \underline{\frak{ Now \: we \: will \: calculate \: the \: area }}[/tex]

*Area =** **L** **×** **B*

*→** **Area** **=** **(**7**0** **×** **4**5**)** **cm**²*

*Area** **=** **3**1**5**0** **cm**²*

Hence the breadth and area are 45 and 3150 respectively.

[tex] \rule{71mm}{4pt}[/tex]

Helpppppppppppppppppppppppppppppppppppppppppppppp ! ! !!! !! ! !

### Answers

They had 10,000 in August because they had 30,016 visitors with all 3 months combined so if they had 10,005 visitors in June and 10,011 visitors in July you add 10,005 + 10,011 which is 20,016 and to find the visitors in August you subtract 30,016 - 20,016 which gives you 10,000 so they had 10,000 visitors in August

Samuel is buying a package of socks with five pairs. The socks come in only black or white and are randomly packaged. What is the probability of having 3 pairs of white socks and 2 pairs of black socks in a package of five pairs of socks

### Answers

**Answer:**

the probability of there being 3 pairs of white socks and 2 pairs of black socks is 1 out of 4

**Step-by-step explanation:**

i think sorry if its wrong! let me know if its wrong! :)

I'll give BRAINLIEST to whoever answers the question correctly!!!!

Which statement is needed to complete this syllogism?

If the angles of a triangle are all equal, then the sides of a triangle are all equal.

If the sides of a triangle are all equal, then the triangle is equilateral.

Therefore, if the angles of a triangle are all equal, then ________________________.

1. the triangle is equiangular

2. the triangle is equilateral

3. the sides of a triangle are all equal

4. the angles of a triangle are all equal

### Answers

**Answer:**

2 = the triangle is equilateral ( took the test )

**Step-by-step explanation:**

Syllogisms are connected by a shared statement that connects a hypothesis to a different conclusion.

The complete **statement **is that the **angles **of a **triangle **are all equal, then the **sides **of a **triangle **are all equal. The correct answer is **option **A.

What is an equilateral triangle?

A **triangle **having all the three **sides equal **and all the **angles **equal is called the** equilateral triangle.**

From the given **statement **we can see that if the **triangle **is having all the **angles **equal then all three sides of the **triangle **must be equal.

The **triangle **is the **equilateral triangle.**

Hence, the **angles **of a **triangle **are all equal, then the **sides **of a **triangle **are all equal. The correct **answer **is option A.

To know more about the** equilateral triangle **follow;

brainly.com/question/17264112

#SPJ2

Correct answer Gets Brainliest

Find the value of x so that the ratios 9 : x and 15 : 40 are equivalent.

### Answers

**Answer:**

x=24

**Step-by-step explanation:**

bc

**Answer/Step-by-step explanation:**

x = 24

9 ÷ 15 = 0.6

40 x 0.6 = 24

Check work:

9 x 0.6 = 15

24 x 0.6 = 40

Write the phrase as an expression. Then simplify the expression.

7 plus the sum of a number x and 5

expression for the phrase:

simplified expression:

### Answers

Expression: x + 5 + 7

Simplified: x + 12

A. A cell phone regularly priced at $100 went on sale for

$79.

### Answers

**Answer:**

21% off

**Step-by-step explanation:**

if the phone was regularly priced at 100 dollars and is now priced at 79 then that would discount the phone by $21 making the price drop at 21%

PLEASE HELP ME I will mark as brainliest

### Answers

**Answer:**

2.

**Step-by-step explanation:**

This option provides all information needed to solve it.

It correctly tells you that H + P = 14, and has the numbers in the correct places.

Please help me ASAP!!will give you the brainliest

### Answers

**Answer:**

y=1x-2

**Step-by-step explanation:**

it is parallel so the slope stays the same at 1, and it goes through the point (3, -2), so the y intercept is -2.

15x - 7

Thornwood Drive

Jim's

Holly Drive

Adam's

The distance from Jim's house to the intersection of Thornwood Drive and Holly Drive is given by the expression 15x - 7. The total

distance from Jim's house to Adam's house when traveled on Thornwood Drive and Holly Drive is given by the expression 23x - 2.

Find a single expression that represents the distance from Adam's house to the intersection of Thornwood Drive and Holly Drive.

A)

8x + 5

B)

8x - 9

38x + 5

D)

38x - 9

### Answers

D? because you add them?

1/2 ÷ 1/2 I am kind of confused

### Answers

**Answer:**

1

**Step-by-step explanation:**

[tex] \huge\frac{1}{2} \div \frac{1}{2} = \frac{1}{2} \times \frac{2}{1} = 1[/tex]

**Answer:**

1

**Step-by-step explanation:**

1/2 ÷ 1/2 = 1

hope it helps

9(a^2+1)^2- 4(b^2-1)^2

### Answers

[tex]9( {a}^{2} + 1) {}^{2} - 4( {b}^{2} - 1) {}^{2} [/tex]

[tex] = 9( {a}^{4} + 1) - 4( {b}^{4} + 1)[/tex]

[tex] = {9a}^{4} + 9 - {4b}^{4} - 4[/tex]

[tex] = {9a}^{4} - {4b}^{4} + (9 - 4)[/tex]

[tex] = {9a}^{4} - {4b}^{4} + 5[/tex]

A student has a container with a volume of 2.5 liters. She estimates the volume to be 2.7 liters. By

what percent is the student's estimate off?

### Answers

**Answer:**

12 percent

**Step-by-step explanation:**

2.5 ÷ 100 = 0.025

2.8 - 2.5 = 0.3

0.3 ÷ 0.025 = 12

hope it helps! please mark me brainliest

Merry Christmas good day ✌️

CHOICE

How much will your total bill come to if you can get

15% off a $120 purchase?

### Answers

**Answer:**

$102

**Step-by-step explanation:**

$102 is your answer.

**Step-by-step explanation:**

Okay, so we know that in order to find this out we have to multiply. First, turn the percentage into a decimal, .15 . Then you're going to do .15 * 120.

.15 * 120 = 18.

Now, we have the cost of what will be taken away from the total bill. So , if $120 is the total bill, we will do $120 - 18 which will get us the answer of $102. So that's your answer! I hope this helps! Happy Holidays and stay safe! Best of luck on your work!

2 friends share 6 waffles equally

### Answers

**Answer:**

its 3

**Step-by-step explanation:**

3+3=6

**Answer:**

Each of them will get 3 waffles.

**Step-by-step explanation:**

Write an equation for the graph below in terms of x

### Answers

**Answer:**

Y = -x - 1

**Step-by-step explanation:**

Slope (rise / run) is -1 and the y-intercept is -1.

Hoep this helps. Pls give brainliest.

**Equation **for the graph below in terms of x is

[tex]y=-1x-1[/tex]

**Given :**

The graph of a line . we need to write equation for the** line graph **

'Equation of a line is in the form of [tex]y=mx+b[/tex]

where m is the** slope** and b is the **y intercept **

y intercept is the point where the graph crosses y axis

The graph crosses y axis at -1

so y intercept [tex]b=-1[/tex]

Now we find out slope . Lets pick two points from the graph

[tex](-1,0) and (0,-1)\\slope(m)=\frac{y_2-y_1}{x_2-x_1} =\frac{-1+0}{0+1}=-1[/tex]

slope m=-1 and b=-1

Substitute the slope and y intercept in y=mx+b

**Equation **for the graph below is

[tex]y=-1x-1[/tex]

Learn more : brainly.com/question/18228324

a which family uses about twice the amount of electricity per person than the other two families? Explain your reasoning.

### Answers

i dont understand**Step-by-step explanation:**

**Answer:**

The Stiles family; the Melendez family uses 390 kWh per person, the Barton family uses 355 kWh per person, and the Stiles family uses 745 kWh per person.

**Step-by-step explanation: im preety sure ¯\_(ツ)_/¯**

simplify

4.8×10⁵+9.5×10⁵

### Answers

**Answer:**

Scientific Notation:

1.43 ⋅ 10^6

Expanded Form:

1430000

**Step-by-step explanation:**

Hope this helps! have a safe and joyful holiday

The correct answer that i got is 1.43 × 10^6

Find the distance between the two points in simplest radical form.

(1,0) and (-8,3)

### Answers

**Answer:**

** 3√10**

**Step-by-step explanation:**

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\(1,0)\quad\implies\quad x_1=1\,,\ \ y_1=0\\\\(-8,3)\quad\implies\quad x_2=-8\,,\ \ y_2=3\\\\d=\sqrt{(-8-1)^2+(3-0)^2}= \sqrt{(-9)^2+3^2}=\sqrt{81+9}\\\\d=\sqrt{90}=\sqrt{9\cdot10}=\sqrt9\cdot\sqrt{10}=3\sqrt{10}\approx9.49[/tex]

A 12 pack of soap costs $9.00 and a 5 pack of soap costs $3.50. Which pack of soap is the better buy?

### Answers

for 12 pack of soap : 12/9=$1.33 per soap

for 5 pack of soap : 3.5/5=$0.70 per soap

#5 pack soap better to buy

Find the product pleeeaaassse... Im dead

(3x+5)(3x+6)

### Answers

**Answer:**

The answer is 9x2+33x+30 :)

**Step-by-step explanation:**

(3x+5)(3x+6)

=(3x+5)(3x+6)

=(3x)(3x)+(3x)(6)+(5)(3x)+(5)(6)

=9x2+18x+15x+30

=9x2+33x+30

**Answer:**

yo answer me its gianna

**Step-by-step explanation:**

What is the sum in simplest form?

4 1/2 and 1 3/5

### Answers

**Answer:**

The answer is 6 1/10

**Step-by-step explanation:**

4 1/2 + 1 3/5

5

1/2 + 3/5

5/10 + 6/10 = 11/10

6 1/10

**Answer:**

The solution is **6**** ****1****/****1****0**** ****o****r**** ****6****1****/****1****0**

**Step-by-step explanation:**

[tex] \sf 4 \frac{1}{2} + 1 \frac{3}{5} \\ \\ = \sf \frac{9}{2} + \frac{8}{5} \\ \\ = \sf \frac{9(5) + 8(2)}{10} \\ \\ = \sf \frac{45 + 16}{10} \\ \\ = \sf \frac{61}{10} \\ \\ = \sf \: 6.1[/tex]

Find the dimensions of a rectangle divided into three equal rectangles of maximum area that has total perimeter (including the middle divider) of 120 feet.

### Answers

**Answer:**

*The dimensions of the rectangle with the maximum area are 15 feet by 30 feet*

**Step-by-step explanation:**

Optimization

There is a rectangle of dimensions x and y as seen in the figure below.

The side of length y is divided into three equal parts to make three equal rectangles.

The area of the greater rectangle is:

A = xy

It has to be maximized given the condition that the total perimeter including the middle dividers is 120 feet.

The outer perimeter of the rectangle is 2x+2y. There are two additional lines with a length of x feet each. Thus, the total perimeter is:

P = 2x + 2y + 2x = 4x + 2y

It has to be equal to 120 feet:

4x + 2y = 120

Dividing by 2:

2x + y = 60

Solving for y:

y = 60 - 2x

Substituting into the area:

[tex]A = x(60 - 2x) = 60x - 2x^2[/tex]

[tex]A=60x - 2x^2[/tex]

Taking the first derivative:

A'=60 - 4x

Equating to 0:

60 - 4x = 0

Solving for x:

x = 60/4 = 15

Thus x = 15 feet

Since y = 60 - 2x = 60 - 30 = 30

Thus y = 30 feet

**The dimensions of the rectangle with the maximum area are 15 feet by 30 feet.**