test the solution x=3 for each equation

Test The Solution X=3 For Each Equation

Answers

Answer 1

Answer: this is not equivalent 81-12+7=11

Step-by-step explanation: this is not equal because 81-12 is 69 and 69+7 will give you 76 witch is not equal to 11

Answer 2

Answer:

[see below]

Step-by-step explanation:

[tex]3x^2-4x+7=11\\\\3(3)^2-4(3)+7=11\\\\3*3^2-12+7=11\\\\3^3-12+7=11\\\\27-12+7=11\\\\27-5=11\\\\\boxed{22\neq 11}[/tex]

3 would not be a solution to the equation.

Hope this helps!


Related Questions

plz help
this is also timed and sorry that the screen looks like this:(

Answers

Answer:

2 hours, 15 minutes

B.

Step-by-step explanation:

3:30 to 5:30 is 2 hours elapsed time.

5:30 to 5:45 is 15 minutes elapsed time.

2 hrs + 15 mins =2 hrs 15 mins.

Answer:

2 hours and 15 minutes

Step-by-step explanation:

You subtract 5:45 - 3:30 = 2:15

Hope I helped

Which expression is equivalent to 3 p+15? (4 points)
оа
1
3 (p+45)
Ob
1
3 (p+5)
3(p + 45)
Ос
Od
3(p + 5)

Answers

Answer:

um, I am confused on the answer options, but 3(p+5) is equivalent

Step-by-step explanation:

3p+15 is the same a 3(p+5) because in 3(p+5) we have to use the distribution property

So, it is 3p +15 here's a picture to explain it better

(3(p+45) would be too big of a number as you also use the distribution property and it would be 3p+135)

Find The Value Of The Variable y

Answers

Y=12.8*2=25.6
y=25.6
Here is your answer

Answer:

25.6

Step-by-step explanation:

25.6 / 2 es igual a 12.8

Find the length of the missing side. Round your answer to the nearest tenth.

Answers

Answer:

Step-by-step explanation:

x/12=tan53

x=12tan53

x=15.9

Answer:

Tangent is opposite over hypotenuse, so tan(53)=x/12. Then you can solve easily.

Step-by-step explanation:

(a+b)²= ?
please tell the correct answer ​

Answers

a^2 + b^2 =

This is all it’s saying.

Step-by-step explanation:

[tex](a + {b)}^{2} = {a}^{2} + 2ab + {b}^{2} [/tex]

A girl cycles for 3hours at a speed of 37km/h .What distance did she cover​

Answers

37x3= 111 she covered 111km in 3 hours at a speed of 37km/h

Answer: If im right the distance she covered is 111 kilometers

Step-by-step explanation:

48% of US adults have very little confidence in newspapers you randomly selected 10 US adults. Find the probability that the number of US adults who have very little confidence in newspapers is exactly 5

Answers

Answer:

[tex]P(x = 5) = 0.2441[/tex]

Step-by-step explanation:

Given

[tex]p = 0.48[/tex] --- proportion that have very little confidence

[tex]n = 10[/tex] --- sample

Required

Determine the probability that exactly 5 have very little confidence

This question will be solved using binomial probability:

[tex]P(x) = ^nC_xp^x(1-p)^{n-x}[/tex]

In this case: x = 5.

So, we have:

[tex]P(x = 5) = ^{10}C_5*0.48^5(1-0.48)^{10-5}[/tex]

[tex]P(x = 5) = ^{10}C_5*0.48^5*0.52^5[/tex]

[tex]P(x = 5) = 252*0.48^5*0.52^5[/tex]

[tex]P(x = 5) = 0.2441[/tex]

There’s 18 boys and 11 girls in a class, they make a team with 7 students
a) in how many ways can they pick a team
b) how many teams can they get knowing there is 4 boys in each one?

Answers

"The number of boys is 45 the number of girls,"

or to say,

"The ratio of the number of boys to the number of girls is 45:1."

This second interpretation reflects the fact that 45 is the unit rate (which is a number) for the ratio 4:5.

Match the correct volume equation to each 3-D figure.

Answers

You dont have an image! sorry i couldnt help!

Answer:

no image sry cant haelp

Step-by-step explanation:

You and a friend go to surf taco for lunch. you order 3 soft tacos and 2 burritos and your total bill is 25. Your friend bill is 30 for 5 soft tacos and 2 burritos. How much do soft tacos cost? 3x+2y=25 4x+2y=30 X-soft tacos y-burritos​

Answers

Answer:

Step-by-step explanation:

Let the cost of one soft taco = s

Let the cost of one burrito  = b

 

So  we have this system

 

3s  + 3b  = 11.25  

4s +  2b   = 10.00   (1)

 

Divide  the first equation through by 3   and we have that

 

s +  b  =  3.75         subtract  b from both sides

s   =  3.75 - b   (2)

 

Sub  (2) into (1)  and we have

 

4 (3.75 - b)  +  2b  =  10.00      simplify

15 - 4b  + 2b   = 10.00

-2b + 15  =10.00      subtract 15 from both sides

-2b  =  - 5.00         divide both sides by -2

b  = 2.50

 

And using (2)

s  =  3.75 - 2.50   =   1.50

 

 

So...  a soft taco  1.50 and a burrito is  2.50

Jill paid a sales tax of $1.40 when she bought a vest. What was price of vest not including tax? Sales tax = 3.5%

Answers

Answer:

$40

Step-by-step explanation:

Tax is a sum levied by the government or an agency of the government on goods and services. taxes increases the price of products

Let p = price of a vest

from the question, this equation can be formed :

0.035 x p = $1.4

divide both sides of the equation by 0.035

p = $40

7/8 - 3/4 in simplest form

Answers

Answer:

Step-by-step explanation:

1/8

Answer:

1/8 or 0.125 or 12.5%

Step-by-step explanation: You can multiply both denominator and numerator of 3/4 to become 6/8. Then you subtract it from 7/8 which leaves you with 1/8.

Look the the question below

Answers

Answer:

-40°

Step-by-step explanation:

-13° + -7° = -20°

-20° + -3° = -23°

-23° + 5° = -28°

-28° + -12° = -40°

Answer:

- 13 - 7 + 5 -12

-30/5= -6

Step-by-step explanation:

sum of all observation/total observation

(-13-7+5-12)/5

-30/5

-6

Please help i don't understand how to solve this!

Answers

Answer:

Step-by-step explanation:

2y + 14.6m + 3.8 - 34.8m - 15.6 -2y

-20.2m -11.8

Look at the question below

Answers

Answer: D) The balloon

Explanation:

Ignore the "above sea level" and "below sea level" portions. Focus purely on the numbers themselves. The largest value is the furthest away from sea level. The smallest value is closest to sea level.

Therefore, the balloon is furthest from sea level because 27 is the largest of the four values (5, 12, 18, 27).

what is the value of a? what is the value of b?​

Answers

Answer:

b=18, a=9√3

Step-by-step explanation:

30-60-90 rule

a is 9/3 b is 18 i think

help me pls1ssssssssssssssssssssssssssssssssssssss

Answers

It would be 87 since all the angles should add up to 180 :)

Answer: 87

Step-by-step explanation:

42 + 51 = 93 then 180 - 93 = 87

What is the domain of the function

Answers

Answer:

[tex]x\geq -6[/tex]

Step-by-step explanation:

The domain of a function is all of the values that [tex]x[/tex] can be under that specific function. In this case, we're asking what values of [tex]x[/tex] allow [tex]\sqrt{\frac{1}{3} x+2}[/tex] to exist.

In order for square roots to exist, the quantity under the square root must be greater than or equal to [tex]0[/tex], because you can't take the square root of a negative number. Therefore, we can write the following inequality to solve for [tex]x[/tex]:

[tex]\frac{1}{3}x+2\geq 0[/tex]

Solving this inequality, we get:

[tex]\frac{1}{3}x+2\geq 0[/tex]

[tex]\frac{1}{3}x\geq -2[/tex] (Subtract [tex]2[/tex] from both sides of the inequality to isolate [tex]x[/tex])

[tex]x\geq -6[/tex] (Multiply both sides of the inequality by [tex]3[/tex] to get rid of [tex]x[/tex]'s coefficient)

Hope this helps!

CAN SOMEONE PLEASE HELP ME

Answers

70
50
60
85

Hope this helps

In Sichuan, China, Bernards stands at the top of the Jinping-1 dam and measures the angle of depression down to where Benjamin is standing at 1999 feet from the base of the dam. If the angle of depression is 26.6 degrees, how tall is the dam? Round to the nearest foot.​

Answers

Answer:

This illustrates a right triangle.

Given:

a(height) = 2457 ft.

∠A = 22°23' ; which is the elevation and reflects the a(height)

Find:

b(base)

Solution:

Using the law of cosine, specifically tan∠ = opposite side÷adjacent side

By analysis, tan∠A = a÷b

Since we are finding b, the formula will be derived into:

b = a÷tan∠A

Find b(base):

b = 2457 ft. ÷ tan22°23' ; substituting the numbers

b ≈ 5,966.05 ft. ; Final Answer

Step-by-step explanation:

Can someone help me with this will give the brainliest

Answers

Answer:

148 in^2

Step-by-step explanation:

2(4 x 5) = 40

2(4 x 6) = 48

2(5 x 6) = 60

Answer:

Answering so you give the guy brainliest, i double checked and its correct.

It cost $2 plus $1.12 per mile to take a taxi. If you have
$10, what is the maximum distance you can travel? (please
round to the tenth place)

Answers

Answer:

2+1.12x=10 minus 2 on each side 1.12x = 8 divide 1.12 to each side is 7.14 miles rounded up on the tenth place

I need a lot of help please! ):

If you don’t know please do not comment.

Answers

Step-by-step explanation:

scale up :

.05

1/2

7

scale down :

13

25

102

7.05 I’m pretty sure because

Consider the polynomial function h(x) = -2x^5+ 8x^4
2x^2+15.
What is the end behavior of the graph of h ?

Answers

Answer: B

Step-by-step explanation:

Applying limits, it is found that the end behavior of the graph is:

B. As [tex]x \rightarrow \infty, h(x) \rightarrow -\infty[/tex], and as [tex]x \rightarrow -\infty, h(x) \rightarrow \infty[/tex].

The function is:

[tex]h(x) = -2x^5 + 8x^4 - 2x^2 + 15[/tex]

To find the end behavior, we apply the limits as x goes to infinity, in which just the term with the highest exponent is considered, hence:

[tex]\lim_{x \rightarrow -\infty} h(x) = \lim_{x \rightarrow -\infty} -2x^{5} = -2(-\infty)^5 = -2(-\infty) = \infty[/tex]

Then, as [tex]x \rightarrow -\infty, h(x) \rightarrow \infty[/tex]

[tex]\lim_{x \rightarrow \infty} h(x) = \lim_{x \rightarrow \infty} -2x^{5} = -2(\infty)^5 = -2(\infty) = -\infty[/tex]

Then, as [tex]x \rightarrow \infty, h(x) \rightarrow -\infty[/tex]

Hence, option B is correct.

A similar problem is given at https://brainly.com/question/24248193

what is the answer 333​

Answers

Answer:

Option A wilk be the correct answer.

Answer:

a. acute, equilateral

Step-by-step explanation:

From the picture the lines on the triangle mean that the sides are equivalent to one another so from that you can eliminate option c. There are not right angles within the triangle so you can eliminate option b. The angles are less than 90 degrees as they arent even cloe to being a right angle so they arent obtuse so you can eliminate option d. Now you are only left with option a.

The grades on a math midterm at Springer are roughly symmetric with \mu = 78μ=78mu, equals, 78 and \sigma = 5.0σ=5.0sigma, equals, 5, point, 0. Omar scored 646464 on the exam. Find the z-score for Omar's exam grade. Round to two decimal places.

Answers

Answer:

-2.8

Step-by-step explanation:

Given that:

Mean, μ = 78

Standard deviation, σ = 5

Omar's score, x = 64

The Zscore of Omar's score :

Zscore = (x - μ) ÷ σ

Zscore = (64 - 78) / 5

Zscore = - 14 / 5

Zscore = - 2.8

Hence, Omar's exam score is - 2.8

Answer:

-2.8 is correct

Step-by-step explanation:

Help pls. For math. 15 points

Answers

Answer:

y=mx+b

so

y=8x+3. the second answer choice

Answer:

y=8x+3

Step-by-step explanation:

we are given the slope (m) as 8 and the y intercept (b) as 3.

The given options are in y=mx+b format.

Use your given information to write the equation in y=mx+b form

we know that m (slope) is 8. The equation so far is y=8x+b

we know that b (y intercept) is 3. So the equation of the line is y=8x+3

Hope this helps!

What happens when the y-intercept is greater than 1?
What happens when the y-intercept is less than 1?

Answers

Answer:What happens when the y-intercept is greater than 1?: more than one y-intercept would violate this, since it would mean that there are two outputs for x=0. Therefore, it is not possible for a function to have more than one y-intercept. This function never crosses the y-axis because, since you can't divide by zero, it is undefined at x=0.

Step-by-step explanation:

9514 1404 393

Answer:

The graph intersects the y-axis above the point (0, 1)The graph intersects the y-axis below the point (0, 1)

Step-by-step explanation:

Nothing special happens when the y-intercept is above or below the value of 1. The y-intercept is where the function's graph intersects the y-axis.

When the y-intercept is greater than 1, the graph intersects the y-axis above the point (0, 1).

When the y-intercept is less than 1, the graph intersects the y-axis below the point (0, 1).

__

The meaning of the y-intercept will depend on what the graph is modeling. No information about that is provided here.

If you were given the choice of between more initial zombies, but a slower growth rate or fewer initial zombies, but a greater growth rate, which would you pick and why?

Answers

I would choose to have a higher initial rate of zombies with a slower growth rate because (although it would be difficult in the beginning) i would have more time to prepare for the zombies.

I would chose more initial zombies, but a slower growth rate because when they grow stronger, you get stronger so you have a better chance of survival if their development rate is gradual, giving you time to collect weapons and construct a shelter.

What is growth rate?

Growth rate refers to the percentage increase or decrease in a particular variable over a specific period of time. It is commonly used in finance, economics, and business to describe the rate of change of various economic indicators such as gross domestic product (GDP), population, revenue, profit, and so on.

here, we have,

To calculate the growth rate, you need to divide the difference between the final value and the initial value of the variable by the initial value, and then multiply the result by 100 to express it as a percentage. The formula for growth rate is as follows:

Growth rate = ((Final value - Initial value) / Initial value) x 100

Learn more about growth at:

brainly.com/question/27161222

#SPJ3

12. Solomon scored 88% on his math test. If the test had 25 questions total, how many
questions did Solomon miss?

Answers

Answer:

He missed 3 questions (which is a score of 22/25 that equals 88%)

Step-by-step explanation:

This is just what I've taught to judge this by "eye level" how to solve questions like these. In this case, since it's a 25 question test, if you divide 25/100 that means each question was 4 points.

So if 20/25 is 80% and 25/25 is 100%, so the answer is between that range.

Hope it helps.

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