PLEASE HELP NOW PLEASE

[tex]

2x^2-6+5=0 \\

2x^2-1=0 \\

2x^2=1 \\

x^2=\frac{1}{2} \\

x=\pm\frac{1}{\sqrt{2}}

[/tex]

You may also want to rationalise the denominator, to do so multiply fraction by [tex]\sqrt{2}[/tex] to get [tex]x=\pm\frac{\sqrt{2}}{2}[/tex].

Hope this helps.

Answer:

D

Step-by-step explanation:

Answer: Helping a fellow teen in need. I got you. lol. It's most likely A. Good luck miss Isabella

Step-by-step explanation:

Answer:

A dependent variable is when it's variable depends on independent variable

Answer:

So the LCM of 6 and 9 is 18.

Step-by-step explanation:

List the factors of both numbers.

6: 6, 12, 18, 24, 30, 36,

9: 9, 18, 27, 36

The LCM of 6 and 9 is found by prime factorizing each number and taking the highest power of each prime that appears, resulting in an LCM of 18.

To find the LCM (Least Common Multiple) of the pair of numbers 6 and 9, we first need to prime factorize each number. The number 6 can be prime factorized as 2 times 3, and 9 can be prime factorized as 3 times 3 or 3². In order to find the LCM, we take the highest power of each prime number that occurs in the factorization of both numbers. So, we take 2 from the factorization of 6 (since it's the highest power of 2) and 3² from the factorization of 9 (since it's the highest power of 3), and multiply them together to get the LCM.

The LCM of 6 and 9 is 2 times 3² = 2 times 9 = 18.

Thus, the Least Common Multiple of 6 and 9 is 18.

Answer:

Therefore the correct assembling is

3.∠DAC ≅ ∠BCA    3. Alternate interior Angles are Equal as AD || BC.

Step-by-step explanation:

Given:

AD ≅ BC and AD || BC

To Prove:

ABCD is a Parallelogram

Proof:

Alternate Interior Angles Theorem :

"When two parallel lines are cut by a transversal , the resulting alternate interior angles are congruent.

Here AD || BC and the transversal is AC

  Statement               Reasons

1. AD ≅ BC  .           1. Given

2. AD || BC              2. Given

3.∠DAC ≅ ∠BCA    3. Alternate interior Angles are Equal as AD || BC.

Therefore the correct assembling is

3.∠DAC ≅ ∠BCA    3. Alternate interior Angles are Equal as AD || BC.

The given mathematical equation, 0x4=0, can be turned into a word problem concerning a person with no money multiplying his funds. The result, as the equation suggests, is still no money, demonstrating that anything multiplied by 0 equals 0.

Let's create a word problem for the equation 0x4=0. Suppose Jack has no money (0 dollars) and he multiplies his money by 4. How much money does Jack have now? The equation to represent this situation is 0x4=0. That is, 0 (Jack's money) times 4 equals 0. So, Jack still has no money. This shows that anything multiplied by 0 is always 0, a fundamental rule in mathematics.

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Final answer:

To solve the word problem, we can use the equation 0x4=0. The solution is x = 0, which means that all the marbles will be left in the bag.

Explanation:

Solving a Word Problem using the Equation 0x4=0

Let's say we have a bag of marbles, and we want to find out how many marbles are left if we take 0 out of 4 marbles. To solve this problem, we can use the equation 0x4=0. According to the equation, no matter how many marbles we take (which is represented by 0), the result will always be 0. This means that in our case, all the marbles will be left in the bag, and none will be taken out.

Solution:

x = 0

Answer:

Step-by-step explanation:

Total marble = 10

No. Blue = 6

No. Red = 2

No. Green = 2

Prob(1st Green) = 2/10 = 1/5

Now there are 9 marble left because it is not replaced back

Prob(2nd Red) = 2/9

Prob(1st green and 2nd red)

=1/5×2/9 = 2/45

Answer:

A

Step-by-step explanation:

f(x) + g(x)

= x² - 2x + 3 + x³ - x² + 4x ← collect like terms

= x³ + 2x + 3 → A

Answer:

B. 0.07

Step-by-step explanation:

was correct, have a wonderful day!

Using it's concept, it is found that there is a 0.07 = 7% probability of getting the desired combination.

A probability is given by the number of desired outcomes divided by the number of total outcomes.

In this problem:

Hence, the probability is given by:

[tex]p = \frac{5}{17} \times \frac{4}{16} = 0.07[/tex]

0.07 = 7% probability of getting the desired combination.

More can be learned about probabilities at https://brainly.com/question/14398287

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n(D) = 4

Step-by-step explanation:

Given Data:

Set D = {4, 6, 8, 10}

The number of elements in a set is called the cardinal elements (or) cardinality of the sets. This is denoted by n(A).

Here it is denoted by n(D).

The number of elements in the set D is 4.

The cardinality of the set is 4.

Hence, n(D) = 4.

For the given set D; the number of elements in the set D as denoted by n(D) is; 4.

According to the question;

The number of elements in a set is given by the notation n(D).

On this note, the set given in this question;

Ultimately, n(D) = 4 elements.

Read more on number of elements in a set;

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Answer: User got this. x=50+6/7 is the Answer.

Step-by-step explanation:

Step 1) Move all terms to the left:

(x+4)7/3-(128)=0

2) Multiply all the terms by the denominator

(x+4)7-128*3=0

3) Add all the numbers together, and all the variables

(x+4)7-384=0

4) Multiply parentheses

7x+28-384=0

5) Add all the numbers together, and all the variables

7x-356=0

6) Move all terms containing x to the left, all other terms to the right

7x=356

x=356/7

x=50+6/7

Answer: B. y = 3x - 26

Step-by-step explanation:

The equation of line in slope - intercept form is given as :

y = mx + c , where m is the slope and c is the y - intercept.

To write the given equation in this form , all we need do is to make y the subject of the formula.

y - 7 = 3 ( x - 11 )

y - 7 = 3x - 33

add 7 to both sides

y = 3x - 33 + 7

y = 3x -26

Answer:

[tex]FJ=35\ units[/tex]

Step-by-step explanation:

we know that

If two triangles are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

In this problem

Triangles FEG and FHJ are similar by AA Similarity Theorem

see the attached figure to better understand the problem

so

[tex]\frac{FJ}{FG}=\frac{FH}{FE}[/tex]

we have

[tex]FG=50\ units\\FH=28\ units\\FE=HF+EH=28+12=40\ units[/tex]

substitute

[tex]\frac{FJ}{50}=\frac{28}{40}[/tex]

[tex]FJ=\frac{28}{40}(50)[/tex]

[tex]FJ=35\ units[/tex]

Answer:

If it contains 14 nickels and 14 quarters then it would actually be $4.20 in total.

Step-by-step explanation:

ANSWER :

In order from least to greatest, it is 1/4, 3/5, 6/7

Step-by-step explanation:

If you make them all decimals, 1/4 is .25, 6/7 is around .8, and 3/5 is .6. In order form least to greatest, that is .25, .6, .8. That would mean in fraction form it is 1/4, 3/5, 6/7.

Answer:

4

Step-by-step explanation:

using

[tex] \sqrt{(x2 - x1) + (y2 - y1)} [/tex]

[tex] \sqrt{(8 - 3) + (4 - ( - 7)} [/tex]

[tex] \sqrt{5 + 11} [/tex]

[tex] \sqrt{16} [/tex]

[tex] = 4[/tex]

Answer:

[tex]\sqrt36[/tex]

Step-by-step explanation:

I got it right on the test

Answer:

To find the value for x you need to get x by itself

To do this we need to do the opposite of what it is showing

1.5 times x the opposite would be dividing

So we need to divide 1.5 from each side (what you do to one side you do to the other)

1.5x/1.5=x (x is now by itself)

3/1.5=2

x=2

Hope this helps ;)

Answer:

56 grape

Step-by-step explanation:

160 fruit chews

25% are cherry, 40% are peach.....25 + 40 = 65%....so 65% of the fruit chews are NOT grape....meaning (100 - 65) = 35 % ARE grape.

so 35% of all the fruit chews are grape

35% of 160 = 0.35 * 160 = 56 are grape <===

The number of grape fruit chews in the display are 56.

To find the number of grape fruit chews in the display case:

Calculate the percentage of cherry and peach fruit chews: 25% cherry + 40% peach = 65% cherry and peach combined.

Subtract the combined percentage from 100% to find the percentage of grape fruit chews: 100% - 65% = 35% grape.

Calculate the number of grape fruit chews by finding 35% of 160 (total fruit chews): 35% of 160 = 0.35 x 160 = 56 grape fruit chews.

Two numbers = 37

Larger number is x, so the smaller number is 37 - x:

x + (37 - x) = 37

“The difference” is subtraction, so we are subtracting the smaller and larger number.

“Nine more than twice the larger number” looks like 9 + 2x, and “the sum of the smaller number and three” looks like (37 - x) + 3. Because this is subtraction, we would write (9 + 2x) - (37 - x) + 3. First, distribute the negative sign:

-(37 - x) = -37 + x

We then simplify:

9 + 2x - 37 + x + 3 (subtract 3)

9 + 2x - 34 + x

-25 + 2x + x (subtract 8 and 34 then add 2x and x)

-25 + 3x

The variable expression for the given problem, where x is the larger number and the sum of two numbers is thirty-seven, is 2x + 9 - (37 - x + 3).

The student is asking to translate a word problem into a variable expression. The problem states that the sum of two numbers is thirty-seven and defines the larger number as x. We want to find the expression for "the difference between nine more than twice the larger number and the sum of the smaller number and three". Knowing that the sum of the two numbers is thirty-seven, we can represent the smaller number as 37 - x. Therefore, the expression would be 2x + 9 - (37 - x + 3).

Final answer:

The taxi driver earns $70 in one day after deducting the cost of petrol from his gross income.

Explanation:

To calculate the taxi driver's earnings, we need to consider his hourly wage, the number of hours worked, and the cost of petrol used during the day. The driver earns $9 per hour and works for 10 hours a day. Thus, his total gross income for the day is $90 (9 dollars/hour times 10 hours). However, he also uses petrol for which he incurs a cost. He uses 2 liters per hour, and since petrol costs $1 per liter, he spends $2 per hour on petrol. Over 10 hours, he thus spends $20 on petrol (2 dollars/hour times 10 hours). To find his net earning, we subtract the petrol cost from the gross income: $90 - $20, which equals $70.

Answer:

√41 or 6.40

Step-by-step explanation:

Pythagorean theorem:

a² + b² = c²

The third side is considered the hypotenuse (c²).

a² and b² will be represented by the legs.

a² = 4²

b² = 5²

c² = c²

4² + 5² = c²

16 + 25 = c²

31 = c²

√41 = c

[tex]\displaystyle\bf\\\textbf{A third side is hypotenuse.}\\\\The~length~of~the~hypotenuse=\sqrt{cat1^2+cat2^2}~~~(T.Pithagoras)\\\\The~length~of~the~hypotenuse=\sqrt{4^2+5^2}=\sqrt{16+25}=\boxed{\bf\sqrt{41}}[/tex]

Answer:

its a desperctive property

Step-by-step explanation:

The suit's final cost after a 30% markdown and an additional 20% off coupon is $168.

To find the suit's final cost, we first calculate the price after the 30% markdown. Subtracting 30% of $300 gives us: $300 - ($300 x 0.30) = $210. Next, we apply the additional 20% off coupon. Subtracting 20% of $210 gives us: $210 - ($210 x 0.20) = $168. Therefore, the suit's final cost is $168.

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The table referred to in the question is:

years=x population =y

 0                  40

 1                  62

 2                 96

 3                149

 4                231

Answer:

Explanation:

To discover the pattern followed by the data in the table, since it is indicated that the moose population is growing exponentially, you can find the multiplicative rate by dividing any two consecutive terms:

rate = 62/40 ≈ 96/62 ≈ 149/96 ≈ 231/149 ≈ 1.55

Thus, using the first ordered pair of the sequence, (0,40), you get the equation that models the exponential growing:

[tex]p(x)=A_0(1.55)^{x}\\ \\ 40=A_0(1.55)^0\\ \\ 40=A_0\times 1\\ \\ A_0=40\\ \\ p(x)=40(1.55)^x[/tex]

Then, to find the population of moose after 12 years, you substitute x = 12:

[tex]p(12)=40(1.55)^{12}=7,692[/tex]

Final answer:

The probability that the students selected are both girls is 5/24.

Explanation:

To find the probability that both students selected are girls, we need to calculate the probability of selecting a girl from the seventh grade and a girl from the eighth grade and then multiply those probabilities together.

The probability of selecting a girl from the seventh grade is 5 girls out of 10 students, which can be expressed as 5/10 or 1/2.

The probability of selecting a girl from the eighth grade is 5 girls out of 12 students, which can be expressed as 5/12.

To find the probability of both events happening, we multiply the probabilities together: (1/2) * (5/12) = 5/24.

Therefore, the probability that the students selected are both girls is 5/24.

Final answer:

After subtracting the 564 graduating students from the total enrollment of 1,864 students at Jefferson High School, there will be 1,300 students enrolled after graduation.

Explanation:

To determine how many students will be enrolled at Jefferson High School after graduation, we simply subtract the number of graduating students from the total enrollment.

Therefore, after graduation, Jefferson High School will have 1,300 students enrolled.

=======================================

Work Shown:

d = distance from work to his house

x = speed when weather is good

y = speed when weather is bad

y = x-6 since he travels 6 mph slower

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

On a good weather day, he travels for 4 hours and goes at x mph

distance = rate*time

d = r*t

d = x*4

d = 4x

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

On a bad weather day, he travels 4.5 hours (half hour more than 4 hrs) and goes at y = x-6 mph

d = r*t

d = y*4.5

d = 4.5y

d = 4.5(x-6) .... replace y with x-6

d = 4.5x-27 .... distribute

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

The values of d for both equations are the same, as the biker is traveling the same distance. So we can equate the two right hand sides (RHS) and solve for x.

4.5x-27 = 4x

4.5x-4x = 27

0.5x = 27

x = 27/0.5

x = 54

The biker's speed on a good weather day is 54 mph.

A bad weather day's speed would be y = x-6 = 54 - 6 = 48 mph.

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

Now compute the value of d

d = 4x

d = 4*54

d = 216

The biker travels 216 miles on a good weather day

or,

d = 4.5*y

d = 4.5*48

d = 216

the biker travels that same distance on a bad weather day.

Answer:

the 8×3×11 one

Step-by-step explanation:

we need to find the surface area of each.

[tex]2(lw + hl + hw)[/tex]

for the 10×10×3=

2(10×3+10×10+10×3)

2(30+100+60)

2(190)

380

for the 8×3×11

2(8×3+11×8+11×3)

2(24+88+33)

2(145)

290