Mathematics High School

i’m lost on this help would be nice

Answers

Answer 1

Answer:

3x - 4 = 14

+4. +4

3x = 18

÷3. ÷3

x = 6

Related Questions

If x and y are two rational numbers such that x < y , then ______ is a rational number in between x and y.

Answers

Answer:

[tex]\dfrac{x+y}{2}[/tex]

Step-by-step explanation:

Let first number be x and another number is y.

A rational number is a fraction that can be expressed in the form of x/y.

A rational number between x and y is given by :

[tex]R=\dfrac{x+y}{2}[/tex]

So,

If x and y are two rational numbers such that x < y , then [tex]\dfrac{x+y}{2}[/tex] is a rational number in between x and y.

Find the measure of the exterior angle.

Answers

the sum of all interior angles must be 180, we know that angle t increases by 10 therefore t is equal to 50° and angle t + 20° is equal to 70°

next we can see that the two angles form a 180° angle meaning the measure of the exterior angle is 180° - 70° or 110°

Cool-down Melanie and Kala each started solving equation 2 for x. 1 (7x – 6) = 6x – 10 The result of Melanie's first step was: 3.5x = 6 = 6x - 10 The result of Kala's first step was: 7x - 6= 12x - 20 One of them made an error. Who was it, and what was the error?
I need to find who made the error and what was the error

Answers

Answer:

Kala's first step.

Step-by-step explanation:

Solving linear equations.

Step 1: Simplify each side, if needed. Step 2: Use Add./Sub. Properties to move the variable term to one side and all other terms to the other side. Step 3: Use Mult./Div. Step 4: Check your answer. I find this is the quickest and easiest way to approach linear equations. Example 6: Solve for the variable.

But Kala did not do that. Instead, she skipped the first stages and moved on ahead, making her equation invalid.

on number 6 what should i color in

Answers

Answer:

For 5/11 shade in the third bubble (0.45 repeating)

A system of equations consists of two lines. One line passes through (8,4) and (6.3) and the second line passes through (0, -2) and (4.0).

Answers

Answer:

system is:

y = 1/2x

y = 1/2x - 2

No Solution to this system

Step-by-step explanation:

A homeowner installs a solar heating system, which generates 20 savings at a rate of 300e t dollars per year, t years after installation. Find a formula for the total savings after t years. If the system cost 30000 dollars to install, when will the savings match the installation cost

Answers

Answer:

"35.84 years" is the appropriate solution.

Step-by-step explanation:

The given values are:

Rate of savings generation,

[tex]s'(t)=300e^{\frac{t}{20} }[/tex]

System cost to install,

= $30000

Now,

The total savings will be:

⇒ [tex]s(t)=\int\limits s'(t) \ dt[/tex]

On substituting the values, we get

⇒ [tex]= \int\limits 300e^{\frac{t}{20} } \ dt[/tex]

⇒ [tex]s(t)=\frac{300e^{\frac{t}{20} }}{\frac{1}{20} }+c[/tex]

When,

Savings = 0

t = 0, then

⇒ [tex]0=6000e^o+c[/tex]

⇒ [tex]c=-6000[/tex]

The formula will be:

⇒ [tex]s(t)=6000[e^{\frac{t}{20} }-1][/tex]

On putting the values in the above formula, we get

⇒ [tex]30000=6000(e^{\frac{t}{20} }-1)[/tex]

[tex]5=e^{\frac{t}{20}}-1[/tex]

[tex]e^{\frac{t}{20} }=6[/tex]

On taking log, we get

⇒ [tex]\frac{t}{20} =log \ 6[/tex]

[tex]t=20 log 6[/tex]

[tex]=35.84 \ years[/tex]

The units for square centimeters are written as
Check all that apply.
O A. cm2
B. sq. cm
C. km2
D. sq.m
E cm

Answers

The answers are A and B.

The answer is a and b

Which of the following sets of numbers could not represent the three sides of a right
triangle?

Answers

Answer:

{48, 64, 81}

Step-by-step explanation:

x - 8 = 68 what is the value of
x

Answers

x - 8 = 68

x - 8 + 8 = 68 + 8

x = 76

hope this helped

If f(x) = (x + 7)2 and g(x) = x2 +9,
which statement is true?
A fo) B f(-4) > g(-3)
C f(1) = g(1)
D f(2) > g(2)

Answers

ANSWER : D

EXPLANATION : 81 > 13 is true

1) Evaluate the following expressions.show your work
a) 7(m - 8) for m = -4

Answers

Answer:

-84

Step-by-step explanation:

Since m=-4, we can plug -4 into the expression and use PEMDAS

7(m - 8)

7((-4)-8)

7(-12)

-84

determine the mode of the set of data in the stem and leaf plot below

Answers

Answer:

Step-by-step explanation:

mode is the value which appears the most than other values. In this case 51 will appear 3 times.

Answer:

5.1

Step-by-step explanation:

dont forget the decimal

Help pleaseeeeeeeeeee

Answers

Answer:

Step-by-step explanation:

please help, is it x = 6, y = 6, y = x, or y = 2?

01:08:55
B
O
B
А
A'
2
D
C
ci
D'
Х
6
8
10
2
O x = 6
O y = 6
O y = x
O y=2

Answers

This is the answer of your question in the picture

The equation for the line of reflection is x = 6

What is reflection?

An equation is a mathematical statement with an 'equal to' symbol between two expressions that have equal values.

For example, 3x + 5 = 15.

Given that, a graph, we need to find the equation of the reflection of the polygon graphed,

We can see, all the vertices on the polygon are being mirrored across the line x = 6.

So, we can say the line of reflection is x = 6.

Hence, the equation for the line of reflection is x = 6

Learn more about equations, click;

https://brainly.com/question/29657983

#SPJ7

A piece of blue yarn is 8 3/10 yards long. A piece of pink yarn is 4 times as long as the blue yarn. What is the total length of the blue and pink yarn

Answers

Answer:

41.5 Yards

Step-by-step explanation:8 3/10 * 4 = 33.2,

33.2+8 3/10 = 41.5

Use completing the square to find the equation of the following circle in standard form.

x2 + y2 - 4x + 12y - 16 = 0

Answers

Answer:

Here's a calculator that should help

Step-by-step explanation:

https://www.calculatorsoup.com/calculators/algebra/completing-the-square-calculator.php

O There were 9 bags of
candy donated for the
neighborhood party.
Each bag contained
245 pieces. How much
candy did they have
for the party?

Answers

9*245 =2205
hope this helps

i need help with this questionnnn

Answers

I am going to say 3

The answer is 1.7 ! :D

Need your help answer correctly for 20 points! <3

Answers

12.50 dollars per hour

Answer:

$12.50

Step-by-step explanation:

Hi,

Cassie: 250 / 20 = 12.5

Marli: 312.50 / 25 = 12.5

Brad: 350 / 28 = 12.5

Each worker makes $12.50 per hour.

I hope this helps :)

you make a scale drawing of a banner for school dance .you use a scale of 1 inch ,2 feet what is the actual width of the banner HELP ASAP!!!!

Answers

Answer:

6.5

Step-by-step explanation:

you take the sides all added up (which was 13in) and divided it by two

Answer: the answer is 18. Trust me. I know what I’m doing lol

Step-by-step explanation:

A cab company charges a $10 boarding fee and a meter rate of $2 per mile. The equation is y=2x+10 where x represents the number of miles to your destination. If you traveled 5 miles to your destination, how much would your total cab be?

Answers

Answer: 20$

Step-by-step explanation: You would add 2(5)+10=y so 10+10=y 10 + 10 = 20

In this case (5,20). Hope this helps!!

What is the slope of the line that passes through the
points (4,-7) and (9, 1)?
A) 5/8
B) 8/5
C) -6/12
D)-13/6

Answers

Answer:

C) -6/12

Step-by-step explanation:

Sana nakatulong

Write an equation for the following scenario.

A 4000 fish population of tuna has been growing continuously at a rate of 0.3%.

Answers

[tex]4000(1.003)^{(x-1)}[/tex]

Step-by-step explanation:

The first term in an arithmetic sequence is 5. The fourth term in the sequence is −4. The tenth term
is −22.
Which function can be used to find the nth term of the arithmetic sequence?

Answers

Answer:

aₙ = -3n + 8

Step-by-step explanation:

The nth term of an arithmetic sequence: aₙ = a₁ + d(n - 1)

{d = common difference}

a₁ = 5

a₄ = 5 + d(4 - 1)

-4 = 5 + 3d

-4 - 5 = 3d

3d = -9

d = -3

Therefore;

aₙ = 5 + (-3)(n - 1)

aₙ = -3n + 8

Check: a₁₀ = 5 + (-3)(10 - 1) = 5 - 27 = - 22

The nth term of the sequence is Tn = 8 - 3n

How to determine the function of the nth term?

The given parameters are:

a = 5, first term

T4 = -4 --- the 4th term

T10 = -22 --- the 10th term

The nth term of an arithmetic sequence is:

Tn = a + (n - 1) * d

So, we have:

T4 = a + (4 - 1) * d

Substitute known values

-4 = 5 +(4 -1) * d

This gives

-4 = 5 + 3d

Subtract 5 from both sides

3d = -9

Divide by 3

d = -3

Recall that:

Tn = a + (n - 1) * d

So, we have:

Tn = 5 + (n - 1) * -3

Expand

Tn = 5 + 3 - 3n

Solve

Tn = 8 - 3n

Hence, the nth term of the sequence is Tn = 8 - 3n

Read more about arithmetic sequence at:

https://brainly.com/question/6561461

Solve the system of equations below.

Answers

I know this doesn’t answer the question but that is what my work looks like and was wondering if you are doing virtual because I thought it was only my county doing this system

Please help! I need this answer right ! And I’m unsure can you LMK ASAP???

Answers

Answer:B

Step-by-step explanation:

help me find the answer please

Answers

Answer:

A x<1125

Step-by-step explanation:

please help is it 2/9?

Answers

Answer:

7/9

Step-by-step explanation:

7/9

Answer:

7/9

Step-by-step explanation:

Brainliest maaaybe? :)

Which expression is equivalent to 3t - 5 + 8t + 3 ?

Answers

Answer:

11t -2

Step-by-step explanation:

3t - 5 + 8t + 3

Combine like terms

3t +8t- 5 + 3

11t -2

Start by changing the problem to 3t + -5 + 8t + 3.

Now combine like terms.

Combine like terms → your numbers

and your "t" terms.

So 3t + 8t is 11t and -5 + 3 is -2.

So the answer is 11t - 2.

The copy machine runs for 20 seconds and then jams. About how many copies were made before the jam occurred? Round your answer to the nearest tenth

Answers

Answer:

10.7

Step-by-step explanation:

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