57.8 – 4.07

**Answer:**

53.73

**Step-by-step explanation:**

Find the equation of the line passing through point (-1, -2) and having

slope 1/5. Show work.

**Answer:**

Y=1/5x+ -2

**Step-by-step explanation:**

Hope this helps

212 + 115 × 6 + 968 HELP ME please!

**Answer:**

1870

**Step-by-step explanation:**

Answer : 1,870

Step - by - step explanation :

When there is multiple math signs in a problem you use PEMDAS . . .

Parentheses, Exponents, Multiplication and Division ( from the left side to right ), Addition and Subtraction ( from the left side to right )

212 + 115 x 6 + 968 --> 212 + 690 + 968

212 + 690 + 968 --> 902 + 968

902 + 968 --> 1,870

A college is selling tickets to the annual battle of the bands

competition. On the first day of ticket sales, the college sold 3

student tickets and 5 adult tickets for a total of $70. On the

second day, the college sold 12 student tickets and 12 adults

tickets for a total of $216.

Use elimination to solve the system of linear equations and

determine the price of each student ticket, x, and each adult

ticket, y. Write your answer as an ordered pair (x,y).

**Answer:**

**Step-by-step explanation:**

**Answer:**

(10,8)

**Step-by-step explanation:**

Which is the equivalent of 0.00000000989 in proper scientific notation?

**Answer:**

9.89×10^-9

**Step-by-step explanation:**

0.000 000 009 89 = **9.89×10^-9**

__

We have introduced spaces in the number to make the digits easier to count. (Some technical publications will write the number with thin spaces for just that reason.) The most-significant digit is in the 9th place to the right of the decimal point, so has a place value of 10^-9.

Evaluate 3x2 - 2xy + 4y2 for x = -1 and y = -2. .

**Answer:**

**The answer is 12**

**Step-by-step explanation:**

**3x² - 2xy + 4y²**

**Let x = -2**

**y = -1**

**3(-2)² - 2(-2)(-1) + 4(-1)²**

**= 3(4) - 2(2) + 4(1)**

**= 12 - 4 + 4**

**= 12**

Area of rectangle 2x8/9

**Answer:**

32/9

**Step-by-step explanation:**

2*(2)(8/9) = 4*8/9 = 32/9

What is 26% as a fraction in simplest form?

A. 26/100

B. 26/10

C. 6/25

D. 13/50

**Answer:**

it'd be d: 13/50 !!

**Answer:**

D. 13/50

**Step-by-step explanation:**

0.26 ⇔ 26/100 ⇔ 13/50

what is 3.98.7 * 29.76+

**Answer:**

- 7% of 3.98...

... is equivalent to multiplying them:

- 7% × 3.98 ≈ - 0.28

(Rounded to a maximum of 2 decimals)

**Step-by-step explanation:**

Hogie lizards have tail lengths that are normally distributed with a mean of 22.5 cm and a standard deviation of 3.6 cm. What tail length is at the 40th percentile for these lizards?

A** tail length **of **23.94 cm** is at the** 40th percentile** for these lizards.

The** z score** is used to **determine** by how many **standard deviations** the **raw score** is above or below the **mean**. It is given by:

[tex]z=\frac{x-\mu}{\sigma} \\\\where\ x\ is\ raw\ score, \mu\ is\ mean,\sigma\ is\ standard\ deviation\\\\\\Given\ that:\\\mu=22.5\ cm,\sigma = 3.6\ cm[/tex]

For the **40th percentile**, that is z = 40% = **0.4**:

[tex]0.4=\frac{x-22.5}{3.6} \\\\x=23.94\ cm[/tex]

A** tail length **of **23.94 cm** is at the** 40th percentile** for these lizards.

Find out more at: https://brainly.com/question/15016913

Determine whether each sequence is geometric. Explain.

256, 128, 64, 32, ...

**Answer:**

Its geometric because each number is being divided by 2.

Help help help help math

**Answer:**

158

**Step-by-step explanation:**

We know the supplement of angle 6 is 22, due to the fact that they are corresponding angles. Simply subtract 22 from 180 to get the answer. 180-22=158

**Answer:**

158 degrees

**Step-by-step explanation:**

Angle 6 has a same side interior relationship with the 22 degrees, so the sum of these angles are equal to 180 degrees.

To find the missing angle, subtract 180 by 22 degrees.

180-22= 158

What is the mathematical formula of ligma

Who's Joe? I am in dire need of therapy.

9. A box of cereal weighs 600 grams. How much is this weight in pounds?

Explain or show your reasoning. (Note: 1 kilogram = 2.2 pounds)

**Answer:**

1.323 pounds I think I'm not too sure thi sorry

**Answer:**

1.32 pounds

**Step-by-step explanation:**

convert 1kg to 1000g

[tex]1000g = 2.2pounds[/tex]

Find out how many pounds per 100g

[tex]100g = 0.22 \: pounds[/tex]

multiply by 6 to get 600g and multiply right hand side of the equation as well

[tex]600g = 0.22 \times 6[/tex]

[tex]600g = 1.32 \: pounds[/tex]

Can someone help me please!? Can you show the work as well! :)

Ok done. Thank to me :>

simplify 8x-5-10x+7 GCF

**Answer:**

-2x + 2

**Step-by-step explanation:**

what is the equivalent factor of 21 +99

**Answer:**

3(7+33)

**Step-by-step explanation:**

The school bus goes 300 miles in 5 hours. What

is the average miles per hour?

**Answer:**

60 average miles per hour.

**Step-by-step explanation:**

300÷5=60

Hope this helps!

Pls help me find the value of x

**Answer:**

x = 3

**Step-by-step explanation:**

2x+6=x+9 subtract x in both sides

x +6 =9 subtract 6 in both sides

x = 3

6(2x + 4) = 3(4x + 8)

Please answer this!

**Answer:**

Infinitely many solutions

**Step-by-step explanation:**

6(2x + 4) = 3(4x + 8)

Distribute the 6

6 * 2x = 12x and 6 * 4 = 24

12x + 24 = 3(4x+8)

Distribute the 3

3 * 4x = 12x and 3 * 4 = 24

12x + 24 = 12x + 24

On both sides of the equal sign we have 12x + 24.

When both sides are equal there are infinitely many solutions.

A video game is on sale for 30% off the

regular price of $50. What is the sale

price of the video game

A.$20

B.$30

C.$33

D.$35

**Answer:**

d! 35 ......!!!!!!!!!!!!

Which expression is equivalent to (3 the square root of 2^5)^1/4

A- 2 5/12

B- 2 12/5

C- 2 2/20

D- 2 3/4

The answer is D trust me

Find the measure of the angle marked and indicated in bold.

**Answer:**

**Step-by-step explanation:**

**parrallel line = gongruent angles**

16x - 7 = 15x

16x - 15x = 7

x = 7

------------------------

7 * 15 = **105° your answer**

--------------------------------

16 * 7 - 7 = 15 * 7

105 = 105

the answer is good

When two numbers are multiplied to get product, each number is called a(n)?

1.factor

2.substitute

**Answer:**

Each number is called a factor

**Step-by-step explanation:**

The multiplication of two numbers is equivalent to adding as many copies of one of them

Complete the recursive formula of the arithmetic sequence -15, -11, -7, -3,...−15,−11,−7,−3,...minus, 15, comma, minus, 11, comma, minus, 7, comma, minus, 3, comma, point, point, point. c(1)=c(1)=c, left parenthesis, 1, right parenthesis, equals c(n)=c(n-1)+c(n)=c(n−1)+c, left parenthesis, n, right parenthesis, equals, c, left parenthesis, n, minus, 1, right parenthesis, plus

**Answer:**

c(1) = -15

c(n) = c(n - 1) + 4

Step-by-step explanation:

Given arithmetic sequence is,

-15, -11, -7, -3...........

Common difference between each successive and previous term is,

d = -11 - (-15)

= -11 + 15

= 4

Since recursive formula of the arithmetic sequence is represented by,

a₁ = First term of the sequence

a(n) = a(n - 1) + d

where a(n) is the nth term and a(n-1) is the previous term of the nth term.

Form the given sequence,

c₁ = -15

c(n) = c(n - 1) + 4

**Step-by-step explanation:**

A part-time handyman made $8798.04 last year. If he claimed himself as an

exemption for $3650 and had a $5700 standard deduction, what was his

taxable income last year?

**Answer: HIs income was $6744.04**

**Step-by-step explanation: 8798.04 + 3650 - 5700 = 6744.04 Hope this helps!**

The **taxable income **last year is $552.

The **interest **that is calculated using both the **principal **and the **interest **that has **accrued **during the previous period is called compound interest. It from simdiffers ple interest in that the principal is not taken into account when determining the interest for the subsequent period with simple interest.

We have,

Last year, a part-time housekeeper earned $8798.

He claimed he was exempt, **costing **$365.

$570.00 is the **standard deduction**.

Gross **income** **less **the standard deduction and all **exemptions **equals taxable income.

= 8798 - 3650 - 5700

= $-552

The **negative **sign indicates that he owes **no taxes**.

learn more about** compound interest **here:

brainly.com/question/28020457

#SPJ7

The price of an item has risen to $136 today. Yesterday it was $80. Find the percentage increase.

well, the numeric difference will be 136 - 80 = 56, now, if we take 80 (original price) to be the 100%, what is 56 (the increase) in percentage off of it?

[tex]\begin{array}{ccll} amount&\%\\ \cline{1-2} 80&100\\ 56&x \end{array}\implies \cfrac{80}{56}=\cfrac{100}{x}\implies \cfrac{10}{7}=\cfrac{100}{x} \\\\\\ 10x=700\implies x = \cfrac{700}{10}\implies x = \stackrel{\%}{70}[/tex]

c-3=6

x+8=18

y-5=4

Please Show your Work For each problem.

**Answer:**

1. 9

2. 10

3. 9

**Step-by-step explanation:**

c-3=6

+3 +3

-----------

c = 9

x+8=18

-8 -8

------------

x = 10

y-5=4

+5 +5

------------

y = 9

hope this helps! :D brainliest would be very, very much appreciated!! <3

Jackie runs and dances for 75 minutes every day.

She dances 25 minutes more than she runs.

What is the greatest amount of time she could spend dancing every day,

given she will take a run.

**Answer:**

I think it is 50 because 75-25=50

Derivative of tan^2 x

**Answer:**

[tex]2sec^2xtanx[/tex]

**Step-by-step explanation:**

[tex]\frac{d}{dx} tan^2x[/tex]

[tex]\frac{d}{dx} tanxtanx[/tex]

[tex](\frac{d}{dx}tanx)(tanx)+(tanx)(\frac{d}{dx}tanx)[/tex]

[tex]\frac{d}{dx}tanx=\frac{d}{dx}\frac{sinx}{cosx}=\frac{(cosx)(cosx)-(sinx)(-sinx)}{(cosx)^2}=\frac{cos^2x+sin^2x}{cos^2x}=\frac{1}{cos^2x}=sec^2x[/tex]

[tex](sec^2x)(tanx)+(tanx)(sec^2x)[/tex]

[tex]2sec^2xtanx[/tex]

Helpful tips:

Product Rule: [tex]\frac{d}{dx}f(x)g(x)=f'(x)g(x)+f(x)g'(x)=\frac{d}{dx}f(x)*g(x)+f(x)*\frac{d}{dx}g(x)[/tex]

Quotient Rule: [tex]\frac{d}{dx}\frac{f(x)}{g(x)}=\frac{g(x)f'(x)-f(x)g'(x)}{(g(x))^2}=\frac{g(x)\frac{d}{dx}f(x)-f(x)\frac{d}{dx}g(x)}{(g(x))^2}[/tex]

Pythagorean Identity: [tex]cos^2x+sin^2x=1[/tex]

Is there a formula for

[tex] {a}^{m} + {a}^{n} [/tex]

?

**Answer:**

No

**Step-by-step explanation:**

There is no formula

There is no formula

Solve for x.3 + 9x = 11x - 7
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