Mathematics High School

I rlly don’t understand due today please help!

Answers

Answer 1

Answer:

a) 2x+4

b)x=8

Step-by-step explanation:

a) x+x+4 =2x +4

b) 2x+4= 20

2x = 16

x=8

Jay bought 8 packets of Chips

c) Jay: 8 x 60

=£4,80

Lauren : 12 × 60

= £7,2

Related Questions

10) $48,000 at 16% for 6 years

Answers

Answer:

No solution

Step-by-step explanation:

idek

HELPP
what is the integer 23504 into a polynomial ??

Answers

A possible polynomial for this integer is 5y x 94 + 4

A polynomial is a type of mathematical expression that includes:

Numbers, also known as constants.Mathematical symbols such as -, +, x.Variables that represented by letters.

Now, to create a polynomial you will need at least two monomials or terms joined by a symbol. Here are some examples of polynomials:

4x + 5y-2x -x +7

One possible polynomial for the integer 23504 is

5y x 94 + 4

In this polynomial, y is equal to 50. Now, to make sure this is correct you can solve the polynomial.

5y x 94 + 4(5 x 50) x 94 + 4250 x 94 + 423500 + 423504

Learn more about polynomial in: https://brainly.com/question/17822016

SR1-2
Paula is standing on a bridge that is 110 above the water below. She throws a
pebble over the edge of the bridge, and it hits the top of a 24 foot high bridge
guard. The quadratic equation that models the path of the pebble is:
p(t) = –16t2 + 48t + 110
such that t is the time in seconds and p is the height of the pebble.

Answers

The time it will take the pebble to reach the maximum height is 1.5secs

Given the quadratic equation that models the path of the pebble expressed as p(t) = –16t^2 + 48t + 110

We can calculate the time taken by the pebble to reach the maximum height.

At maximum height, the velocity of the pebble is zero i.e. p'(t) = 0

p'(t) = -32t + 48

0 = -32t + 48

32t = 48

t = 48/32

t = 1.5secs

Hence the time it will take the pebble to reach the maximum height is 1.5secs

Learn more on velocity function here:https://brainly.com/question/25749514

The area of the rectangular floor of a shed is 40 space y d squared. The length of the shed is (x+2) yd and the width of the shed is (x-1) yd. Find the dimensions of the shed. Provide justification for each step. You can use the Sketch tool, or hand-write your algebraic proof, or type your answer. But you need to provide all the steps, with justification for each step, to get credit for this problem.

Answers

Answer:

x=3

Step-by-step explanation:

3 squared is 9. 9 plus 2 times 2=22 each of the sides on the angle are 11. 22 plus 22= 44. then 3 -1 equals 2. 44 minus 4 equals 40. equaling the area

One smartphone plan costs $52 per month for talk and messaging and $8 per gigabyte of data used each month. A second smartphone plan costs $82 per month for talk and messaging and $3 per gigabyte of data used each month. Let c represent the total cost in dollars and d represent the amount of data used in gigabytes.

The system of equations
c=52+8d
c−3d=82

can be used to represent this situation.
How many gigabytes would have to be used for the plans to cost the same? What would that cost be?

Answers

Answer:

Both plans would cost $100 if 6 gigabytes of data are used.

Explanation:

From the question, the system of equation are correctly represented by using small letter c to represent the total cost in dollars for both equations as already assumed in the question as follows:

c = 52 + 8d ........................... (1)

c = 82 + 3d ........................... (2)

Since c is common to both, equations (1) and (2) can therefore be equated and d solved for as follows:

52 + 8d = 82 + 3d

8d - 3d = 82 - 52

5d = 30

d = 30 / 5

d = 6

Substituting d = 6 into equation (1), we have:

c = 52 + (8 * 6)

c = 52 + 48

c = 100

Since d = 6 and c = 100, it therefore implies that both plans would cost $100 if 6 gigabytes of data are used.

Evaluate the expression if a = 4, b = 9, and c = 1.

3b÷c1−a

–27

–9

9

27

Answers

Answer:

I used the discriminant which is √-4ac

Then I filled the numbers in, and found that 9 gets plug in for b and this becomes 9 squared, and that becomes 81. 4 is multiplied to 4 and 1 and becomes 16. Then 81 and 16 are subtracted and we get 65. We then find the square root, and will find that the answer is C.

Step-by-step explanation:

Answer:

3b÷c1−a

=3×9÷1×1-4

=27÷1-4

=27-4

=23

What is the equation of a line with a slope of 4 that passes
through point (-2,5)? A y = -1/4x - 3 B y = -4x + 5 C y = 4x + 5 D y = 4x + 13

Answers

Answer:

Solution given:

slope(m)=4

passes through (x',y')=(-2,5)

we have

equation of a line is:

y-y'=m(x-x')

substituting value we get

y-5=4(x-(-2))

y-5=4(x+2)

y-5=4x+8

y=4x+8+5

y=4x+13 is a required equation of a line.

help finals study guide please I want to just go on break

Answers

Step-by-step explanation:

(note: I'm only answering the ones I know vs giving you wrong answers for the others!)

1. ROS=Obtuse (larger then ninty degrees)

2. octagon has 8 angles (octo means eight, after all!)

3. If a figure has three sides, it is a triagle (not positive on this one)

4. symmetric property of congruence (this one's a simple search :p )

5. N/A (although I believe its angle BEC=124 degrees, as every other choice Is proven to be true)

6. congruent complements theorem (this is because we are given that 3 is a suppliment of 4. we are also given that 2=4. Based on this, then 1=3 is congruent based on 1 being suppliment of 2, 2=4, and 3 being a suppliment of 4)

7. N/A

8. N/A (the picture is too fuzzy for me to make any ideas)

I'm sorry I couldn't solve them all, but I hope this at least gets you somewhere! Have a great day!

If 2 caterpillars eat 6 leaves each day, how many leaves do 12 caterpillars need each day?

Answers

Hey there. I like to lay out this sort of question in this way…

2 caterpillars = 6 leaves

We’ve been told to work out how many leaves 12 caterpillars eat each day.

So we can fill in our extra information…

2 caterpillars = 6 leaves
12 caterpillars = x leaves

From 2 to 12, we have multiplied by 6. What we do to one side, we must do to the other. Therefore, 6 x 6 = 36 leaves.

So for 12 caterpillars, they eat 36 leaves each day.

Answer:

72 Leafs

Step-by-step explanation:

Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Step-by-step explanation:

8/9 = 24/27

8/9 = 56/63

24 and 63 are the answers

what is the answer
simplify 2(5x+3)-2(2x-3)

Answers

Answer:Use this PEMDAS to solve

Step-by-step explanation:

Parethiesis,Exponent,Multiplication,Division,Addition,and Subtraction.

ALWAYS DO P FIRST!!!!

Answer:

x+2

Step-by-step explanation

2 x 5x =10x 2 x 3=6 -2 x 2x = -4x -2 x -3=6

10x-4x + 6+6

6x+12

simplified: x +2

Adam is working out the highest common factor of 100 and 112 He has worked it out to be 22. Can you explain what he has done wrong?

Answers

Answer:

130

Step-by-step explanation:

correct me if im wrong

tnx

love ya

Answer:

Adam has found highest common factor as 22 because he didn't multiply 2×2 as 4 but he directly written 2×2 as 22

Step-by-step explanation:

100=10×10

=2×5×2×5

=2×2×5×5

112=4×28

=4×4×7

=2×2×2×2×7

so highest common factor = 2×2 =4

Help Please 100 pts for the answer! Need answer ASAP

Answers

Answer:

-25/1 or -25

Step-by-step explanation:

Answer:

-25/1 or -25

Step-by-step explanation:

there hope this will help a lot

Multiply (x^2+3x+5)(2x^2-2x+1

Answers

Answer:

2x^4+4x^3+5x^2-7x+5

Step-by-step explanation:

Find s(16) for the sequence s(n)=4n-2, ne {1, 2, 3, ... }.
A
64
B
60
66
D
62

Answers

Answer:

Step-by-step explanation:

Substitute n = 16 into the sequence rule

s(16) = 4(16) - 2 = 64 - 2 = 62

Help me please ******

Answers

Answer:

it is

Step-by-step explanation:

The parallel horizontal sides are the same length, so the figure is a parallelogram.

Hannah's math teacher finds that there's roughly a linear relationship between the amount of time students spend on their homework and their weekly quiz scores. This relationship can be represented by the equation y=7.1x+55 where y represents the expected quiz score and x represents hours spent on homework that week. What is the meaning of the yy-value when x=1?

Answers

Answer:

Expected score with 1 hour of homework

Step-by-step explanation:

у
6
What is the sequence of transformations that maps A ABC to
A A'B'C'?
B
5
4
3
Select from the drop-down menus to correctly identify each step
A
2
А
1
C
Step 1: Choose...
-6-5-4-3-2-13
1 2 3
4 5 6 7 8
A
Step 2: Choose...
-2
-3
<
-5
8
-6

Answers

The sequence of transformation is a reflection across the x-axis, followed by horizontal shift to the right by 2 units, and vertical shift up by 6 units

The vertices of triangle ABC are given as:

[tex]A = (1,9)[/tex]

[tex]B = (3,12)[/tex]

[tex]C =(4,4)[/tex]

The vertices of triangle A"B"C" are given as:

[tex]A" = (3,-3)[/tex]

[tex]B" = (5,-6)[/tex]

[tex]C" =(6,2)[/tex]

Start by reflecting the coordinates of triangle ABC across the x-axis.

The rule of this transformation is:

[tex](x,y) \to (x,-y)[/tex]

So, we have:

[tex]A' =(1,-9)[/tex]

[tex]B' =(3,-12)[/tex]

[tex]C' =(4,-4)[/tex]

Next, shift triangle A'B'C' 2 units right and 6 units up

The rule of this transformation is:

[tex](x,y) \to (x+2,y+6)[/tex]

So, we have:

[tex]A" = (3,-3)[/tex]

[tex]B" = (5,-6)[/tex]

[tex]C" =(6,2)[/tex]

Hence, the sequence of transformation is a reflection across the x-axis, followed by horizontal shift to the right by 2 units, and vertical shift up by 6 units

Answers

The answer is Vertical line

Which number line shows the estimate of V47 in the correct interval of integers?
0 1 2 3 4 5 6 7 8 9 10
0 1 2 3 4 5 6 7 8 9 10
0 1 2 3 4 5 6 7 8 9 10

Answers

Answer:

B (the second number line)

Step-by-step explanation:

[tex]\sqrt{49}[/tex] = 7, so [tex]\sqrt{47}[/tex] would be close to 7

4. Which situation best demonstrates the phrase "correlation is not causation"?
A. As rainfall increases, so does the water level in the river.
B. The hotter the temperature, the faster ice will melt.
C. As the number of people with vision loss increases, the sale of hearing aids increases.
D. The fewer mistakes a student makes on a math test, the better their grade is on the math test.
a

Answers

Answer:

Step-by-step explanation:

We can solve this by analyzing if the event causes the result. If it does not, then there is correlation but not necessarily causation

A. Event: Rainfall. Result: Water level rises

Does rainfall cause an increase in water level? Yes, so this is incorrect

B. Event: Temperature increase. Result: Ice melting

Does an increase in temperature cause ice to melt faster? Yes, so this is incorrect

C. Event: More people have vision loss. Result: Hearing aids sales increase

Does more people having vision loss cause hearing aids sales to increase? No, vision loss does not cause a need for hearing aids -- hearing loss would, but vision loss does not. This is correct

D. Event: A student makes fewer mistakes. Result: A better grade

Do fewer mistakes cause better grades? Yes, so this is incorrect

use the model to solve for x

Answers

Answer: x = 3Step-by-step explanation:x + x + x + x + x + 1 = x + x + x + 1 + 1 + 1 + 1 + 1 + 1 + 1=> 5x + 1 = 3x + 7=> 5x - 3x = -1 + 7=> 2x = 6=> x = 3Conclusion:

Therefore, using the models, we can conclude that the answer is x = 3.

Hoped this helped.

[tex]BrainiacUser1357[/tex]

If 8 drinks cost 12 dollars how much will 12 drinks cost

Answers

Hello there for this problem we can make a proportion

[tex]\frac{8\:drinks}{12\:cost}=\frac{12\:drinks}{x}[/tex], we are trying to find how much x is

cross multiply and we get that [tex]8x=144[/tex]

divide both sides by 8 and we get [tex]x=18[/tex], 12 drinks would've cost 18 dollars

Answer:

1 drink = 12 ÷ 8

= 1.5

So 12 drink = 12 × 1.5

= 8 dollars

A coin weighs 8/15 ounces. A different coin weighs 4/15 ounces.
How much do the two coins weigh together?

Answers

12/15 ounces

this is because 8/15 + 4/15 = 12/15

hope this is helpful!

8/15+ 4/15 = 12/15 or 4/5

Solve the following.

Answers

Answer:

Step-by-step explanation:

The scale factor is 5.3 repeating. So I divided 24 by 5.33333333333333333 and got 4.5. I don't know if it's accurate since it's a reapeating decimal but it's close enough. Then I multiplied 2 by 5.3333333333333333333333 and got 10.6666667.

Can anyone solve this . Please tell the method as well

Answers

2^7b = 2^5

Now you have like bases. This means that you can set the exponents equal , meaning 7b= 5. B =5\7

If a letter of the alphabet is chosen at random, what is the probability that it will be a vowel? (Y is not a vowel.) a. 1/2 b. 3/13 c. 1/5 d. 5/26 Please select the best answer from the choices provided A B C D

Answers

Answer: I believe D.

How I can answer this question, NO LINKS, if you answer correctly I will give u brainliest!

Answers

Answer:

Step-by-step explanation:

3:1=6:2

They buy 2 pepperoni pizzas.

PLEASE NO LINKS AND NO NEGATIVITY

Answers

Answer:

D. Associative property of addition

Step-by-step explanation:

The associative property of addition states "Changing the group of addends does not change the sum." This means it does not matter what order you use when adding the variables together, and PEMDAS does not apply.

The commentative property of addition states the order of the numbers when adding does not change the sum. While this is true for this equation, this is not the main focus as we are still adding the same way from lines 3-4 with 6+3, instead of 3+6

Express the quotient as a fraction in simplest form. -5-7 divided by 6/7

Answers

Answer:

a) -5/6

Step-by-step explanation:

[tex] - \frac{5}{7} \div \frac{6}{7} [/tex]

keep, change, flip

[tex] - \frac{5}{7} \times \frac{7}{6} [/tex]

[tex] - \frac{35}{42} [/tex]

simplify

35 ÷7=5

42÷7= 6

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