[tex] {x}^{ 2} + 4x - 21[/tex]
I'm trying to solve for x but I dont understand and need help ​

Answers

Answer 1
x= 3, -7 ( happy thanksgiving lovely! )

Related Questions

a fruit Shop sells dried fruit by the pound the cost for X pounds of raisins is represented by the equation y= 3.5x, where y is the total cost for X pounds. the cost for 4 pounds of dried cranberries is $18 Graph both proportional relationship on the grid to the right which fruit has the lower unit price? Explain.

Answers

y=4.5x the equation for cranberries

Step-by-step explanation:

So the easiest way to solve this would be take the $18 and divide it by the 4 pounds you then get the unit price per pound which is $4.5 a pound

can someone please help.....​

Answers

1/3 is smaller than 1/2, therefore it already indicates the number line is drawn incorrectly, since 1/2 should be in front of 1/3 not behind & 1/12 should be in front, next to 0, since it is the smallest fraction and 1/6 right next to it, then 1/3, then 1/2 & 5/12 then 1/4.

Find the distance from point A(−1, 7) to the line y=3x. Round your answer to the nearest tenth.

Answers

Answer:

The distance from the point to the line is approximately 3.2 units

Step-by-step explanation:

Distance From a Point to a Line

Is the shortest distance from a given point to any point on an infinite straight line. The shortest distance occurs when the segment from the point and the line are perpendiculars.

If the line is given by the equation ax + by + c = 0, where a, b and c are real constants, the distance from the line to a point (x0,y0) is

[tex]\displaystyle d= \frac{|ax_0+by_0+c|}{\sqrt{a^2+b^2}}[/tex]

The line is given by the equation:

y=3x. We need to transform it into the specified form.

Subtracting 3x:

y - 3x = 0

Comparing with the general form of the line, we have

a=-3, b=1, c=0

The point (xo,yo) is (-1,7), thus:

[tex]\displaystyle d= \frac{|-3\cdot (-1)+1\cdot 7+0|}{\sqrt{(-3)^2+1^2}}[/tex]

[tex]\displaystyle d= \frac{|3+7|}{\sqrt{9+1}}[/tex]

[tex]\displaystyle d= \frac{|10|}{\sqrt{10}}[/tex]

[tex]\displaystyle d= \frac{10}{\sqrt{10}}[/tex]

[tex]d\approx 3.2[/tex]

The distance from the point to the line is approximately 3.2 units

Need help with this pls

Answers

Answer:

hi

Step-by-step explanation:

hi

It takes Mark 1 hour to get to work each day. Mark drives from home 20 minutes to the train station at a constant rate of 42 mph. He then takes the train, traveling at a constant 60 mph, the remaining distance to work. How far does Mark live from his work place? A. 108 mi. B. 80 mi. C. 62 mi. D. 54 mi.

PLEASE HELP QUICK

Answers

Answer:D.54

Step-by-step explanation: it takes 20 minutes in the car which is 1/3 of an hr so 42/3= 14 then that leaves 40 minutes left for the train which is 2/3 of 60 and 60/3=20 and 20x2= 40 so 40+14=54

Answer:

D. 54

Step-by-step explanation:

Give the guy above brainliest

HEELLLPP MEEEE PLZZZZ!!!!!

Answers

Use the distance formula to find base and height.

What’s the answer
What are the slope and the y-intercept of the linear function that is represented by the graph

Answers

The y intercept is 3

Which of the following shows 2.736 correctly rounded to the tenths place?
2.74
2.7
2.8
3

Answers

Answer:

2.7

Step-by-step explanation:

The 3 does not round up the 7, so it stays as 2.7

Answer:

2.7

Step-by-step explanation:

the tenths place is the first number after the decimal. When rounding numbers 5 and higher can increase the number next to it by 1. So 2.736 becomes 2.74 then becomes 2.7 as the 4 is not able to round the number since it is below 5.

A certain cookie recipe calls for 2 cups of flour to make one batch of cookies. Which graph best
represents the relationship between the amount of flour and the number of batches of cookies that
can be made using this recipe?

Answers

Answer:

1 cup of flower makes 1/2 a batch of cookies

Step-by-step explanation:

2 divided by 2 is 1

1 divided by 2 is 1/2

The cost of a school banquet is $85 plus $12 for each person attending. Write an equation that gives the total cost of the number of people attending.

A. Y=85x-12
B. Y=12x+85
C. Y=85x+12
D. Y=12x-85

Answers

Answer: I think that the answer is B

Step-by-step explanation:

Let’s say that x=the people attending. Since the cost of a school banquet is 85 the number 85 will be by itself, and since there is 12 for each person it will be 12x. Therefore it is B in which y=12x+85.

No rush on this one:)

The price of a shirt decreases by 13$. Which integer represents the decrease in the shirt’s price?

Answers

Answer:

-13

Step-by-step explanation:

-13 since it's going down in price

1. The circle C has centre (5,k), where k is a constant. The line y = 2x + 1 is tangent to C at point
A (3,7). Find the equation of C.

Answers

Answer:

[tex](x-5)^2+(y-6)^2=5[/tex]

Step-by-step explanation:

Equation of the Circle

A circle centered at (h,k) and radius r can be written with the equation:

[tex](x-h)^2+(y-k)^2=r^2[/tex]

We are given the center (5,k), thus:

[tex](x-5)^2+(y-k)^2=r^2[/tex]

We know the point (3,7) belongs to the circle. This means the distance between the center and this point is the radius.

Given two points (x1,y1) and (x2,y2), the distance between them satisfies:

[tex]d^2=(x_2-x_1)^2+(y_2-y_1)^2[/tex]

Calculating the radius, we have:

[tex]r^2=(7-k)^2+(3-5)^2[/tex]

[tex]r^2=(7-k)^2+4\qquad\qquad [1][/tex]

Now we use the fact that the line y=2x+1 and the circle are tangent at (3,7). The radius and the line are perpendicular at that point. Two perpendicular lines with slopes m1 and m2 satisfy the condition:

[tex]m_1\cdot m_2=-1[/tex]

The line y=2x+1 has a slope of m1=2, thus the slope of the segment from (5,k) to (3,7) has a slope of -1/2:

The slope is calculated as:

[tex]\displaystyle \frac{7-k}{3-5}=-\frac{1}{2}[/tex]

Operating:

[tex]\displaystyle \frac{7-k}{-2}=-\frac{1}{2}[/tex]

Multiplying by -2

[tex]\displaystyle 7-k=1[/tex]

Solving:

k=6

From [1] the radius is:

[tex]r^2=(7-6)^2+4[/tex]

[tex]r^2=1+4[/tex]

[tex]r^2=5[/tex]

Finally, substituting into the equation of the circle:

[tex]\mathbf{(x-5)^2+(y-6)^2=5}[/tex]

The graph can be seen in the figure below.

Answer:

Step-by-step explanation:

OK y'all, one more, help please !!

Answers

Answer:

1) B

2) A

3) H

4) E

Step-by-step explanation:

15. Which expression has the greatest value?
A. 142-(-172)
B. 1 12+ -1 12
C. -142 - (-14)
D. 142

Answers

Answer:

i think that its D

Step-by-step explanation:

hopes this helps

i'm pretty sure it's d :))

What are some reasons to live I could use them right now

Answers

Answer:

mom will be sad

Step-by-step explanation:

YOU ARE A BEATIFUL AND AMAZING PERSON DONT DIE ON ME LIKE THIS

6. When rounded to the nearest hundredth, log, 7 =1.77. Which of the following represents the value of
log, 63 to the nearest hundredth? Hint: write 63 as a product involving 7.

Answers

Note: Consider the base of all is 3 instead of comma.

Given:

Consider the given value is [tex]\log_37=1.77[/tex].

To find:

The value of [tex]\log_363[/tex].

Solution:

Using properties of logarithm, we get

[tex]\log_363=\log_3(9\times 7)[/tex]

[tex]\log_363=\log_3(3^2\times 7)[/tex]

[tex]\log_363=\log_3(3^2)+\log_3(7)[/tex]       [tex][\because \log ab=\log a+\log b][/tex]

[tex]\log_363=2+ \log_3(7)[/tex]    [tex][\because \log_aa^x=x][/tex]

[tex]\log_363=2+1.77[/tex]        [tex][\because \log_37=1.77][/tex]

[tex]\log_363=3.77[/tex]

Therefore, the value of [tex]\log_363[/tex] is 3.77.

Applying logarithm properties, it is found that:

[tex]\log_3{63} = 3.77[/tex]

We want to find [tex]\log_3{63}[/tex], considering that [tex]63 = 7 \times 9 = 7 \times 3^2[/tex], we have that:

[tex]\log_3{63} = \log_3{(7 \times 3^2)}[/tex]

The first property applied is:

[tex]\log{a \times b} = \log{a} + \log{b}[/tex]

Hence:

[tex]\log_3{63} = \log_3{(7 \times 3^2)} = \log_3{7} + \log_3{3^2}[/tex]

The next property is:

[tex]\log_a{a^b} = b[/tex]

Hence:

[tex]\log_3{7} + \log_3{3^2} = 1.77 + 2 = 3.77[/tex]

A similar problem is given at https://brainly.com/question/2620660

빠IHO
4. Find 39% of 65.
What is the answer

Answers

23.35
Needs to be 20 characters longgg

Order the numbers from least to greatest.
Put the lowest number on the left.

1.001 1.101 0.113

Answers

0.113,1.001,1.101 This is the right answer

Answer:

I think this is answer:

0.113-1.001-1.101

Step-by-step explanation:

The last time Aiden played baseball, he hit the ball 35% of the times he was at bat. Based on this information, how many times will Aiden hit the ball the next time he plays baseball if he is at bat 20 times?

Answers

Answer:

the number of times  will Aiden hit the ball is 7

Step-by-step explanation:

The computation of the number of times will Aiden hit the ball is shown below:

She hit 35% of the times

i.e.

= Given percentage of number of times

= 35% of 20

= 35 ÷ 100 × 20

= 0.35 × 20

= 7

Hence, the number of times  will Aiden hit the ball is 7

We simply applied the above formula so that the correct value could come

The same is to be considered

PLEASE HELP ASAP GIVING 15 POINTS AND MARKING BRAINLIEST THE FIRST PHOTO IS THE GRAPH THE SECOND IS THE ANSWER CHOICES PLEASE HELP!!!

Answers

What graph??????????

Part A: In your own words, describe the relationship between the temperature of the city and the number of ice cream cones sold.

Part B: Describe how you can make the line of best fit. Write the approximate slope and y-intercept of the line of best fit. Show your work, including the points that you use to calculate slope and y-intercept. ​

Answers

Answer:

Part A: The higher the temp the more ice cream sold.

Part B

Step-by-step explanation:

Pls help i will mark brainliest シ♡︎

Answers

Answer:

D:95 mm Hg

Step-by-step explanation:

Using the linear model, y=x+95, x represents the age and y represents the blood pressure.

For a newborn, x=0 this gives us

> y=0+95 = 95<

Answer: 1mm hg per year

Step-by-step explanation:

During a 60-minute period, a traffic engineer counted 66 trucks and cars that crossed a bridge. The ratio of trucks to cars that travel across the bridge is usually 3:8. The equation 3 8 = t 66 − t 3 8 = t 66 − t can be used to predict the number of trucks, t, the engineer should have counted. How many trucks should the engineer have counted?

Answers

Answer:

18

Step-by-step explanation:

t = Number of trucks counted

c = Number of cars

Ratio of trucks to cars = [tex]\dfrac{t}{c}=\dfrac{3}{8}[/tex]

Total number of cars and truck = 66

[tex]t+c=66[/tex]

Divide the left and right side by the number of cars

[tex]\dfrac{t+c}{c}=\dfrac{66}{c}\\\Rightarrow \dfrac{t}{c}+1=\dfrac{66}{c}\\\Rightarrow \dfrac{3}{8}+1=\dfrac{66}{c}\\\Rightarrow \dfrac{11}{8}=\dfrac{66}{c}\\\Rightarrow c=66\times \dfrac{8}{11}\\\Rightarrow c=48[/tex]

Total number of cars is 48

so

[tex]t=66-c\\\Rightarrow t=66-48\\\Rightarrow t=18[/tex]

Total number of trucks counted is 18.

Complete the following statement.

24 ft = in.

Answers

Answer:

288

Step-by-step explanation:

1 foot= 12 inches

24x12=288

Answer:288

Step-by-step explanation:24x12=288 hope this helps

Which ordered pairs are NOT a solution of y = 2x + 1? Select all that apply. (3, 7) (3, 7) (0, 1) (0, 1) (-1, 1) (-1, 1) (-3, -5) (-3, -5) (-2, 3)

Answers

Answer:

The ordered pairs are;

(-1,1) and (-2,3)

Step-by-step explanation:

Here, we want to select which ordered pair is not a solution to the given equation

The one that will not be a solution will be a point at which if we insert the x-value into the equation, we do not get the y-value at that point

For (3,7

2(3) + 1 = 7

For 0,1

2(0) + 1 = 1

For (-1,1)

= 2(-1) + 1 = -2 + 1 = -1

This is wrong

(-3,-5)

= 2(-3) + 1 = -6 + 1 = -5

(-2,3)

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

This is wrong also

Plz help!! Ty


A (2-7)
B. (1-6)
C. (5,0)
D. (0,-7.5)

Answers

Answer:

i have a feeling it is C because the lines intersect at (5,0)

URGENT! What is the value of x?

Enter your answer in the box.

(MAKE SURE IT’S THE CORRECT ANSWER)

Answers

Answer:

48 degrees

Step-by-step explanation:

48 degrees — it’s a vertical angle

Tilly and Lilly worked together on a job. Tilly earned twice as much as Lilly, and together they earned $510. How much did each person earn? Use the 5D Process, showing all your work.

Answers

Answer:

Lilly earns $170

Tilly earns $340

Step-by-step explanation:

Given that

Tilly earned twice as much as Lilly

If Lilly's earning = x, then Tilly's earning = 2x

Total amount they both earned = $510

x + 2x = $510

3x = $510

3x / 3 = $510 /3

x = $170

Hence,

Lilly earns x = $170

Tilly earns, 2x = 2* 170 = $340

Solve for x in the equation
4*+2=1​

Answers

Answer:

x=(-1)/4

Step-by-step explanation:

4x=1-2

4x=(-1)

x=(-1)/4

You have put ₹ 2500 in your bank account. After some years, you observe that you have received interest and the amount now is ₹ 4100. What is the percentage of increase?

Answers

Answer:

64%

Step-by-step explanation:

The first step is to calculate the increase

= 4100-2500

= 1600

Therefore the percentage increase can be calculated as follows

= increase/original number × 100

= 1600/2500 × 100

= 0.64 × 100

= 64%

Hence the percentage increase is 64%

Other Questions
How many solutions does the system have?y= -5x - 1y = -5.2 + 7 What is crossing-over, during what phase does it occur, and what is its significance? I need helppppp I forgot how to do this :( (for the phantom tollbooth) which phrase from the passage is an oxymoron? PLEASE HELP ME!!! Nicki's class needs to raise 89.45 in order to have a pizza party so far she has 69.90 how much more money does Nicki's class need to buy the pizza party? Which of these are significant problems with bottled water?Immense plastic useFossil fuel used to transport water Water bottles can leach toxics into waterAll of the above B. Directions: Read the following sentences.Underline the verb used in each sentence andtell whether the sentence is active or passive.1. Ms. Dela Cruz taught usgrammar.2. The country was devastated bythe typhoon.3. The sales agent gives discountevery Tuesday.4. That script was written by mysister.5. The journalist edited her articlebefore uploading it. ill give the brailiest answer is correct hurry up Lines A and B are parallel lines. Find the measures ofangles 1, 2 and 3.a. m21=b. m 2 =C. m3 =What are the degrees of these three angles plzzzz hurry Appearance Definition 30 is used in a pie chart to represent 5 people. How many people were there altogether??? PLZZ HURRYAfter searching all day for my cat, I finally found her in the doghouse.Which of the following is a prepositional phrase from the sentence above? A. found her B. in the doghouse C. finally found her D. searching all day Describe what happens in the ocean with plate tectonics Choose a justification for each step in the derivation of the sine difference identity.Step 1: Step 2: Distributive propertyStep 3: Associative propertyStep 4: Factoring out 1Step 5: Step 6: Step 7: An actor invests some money at %, and $ more than the amount at The total annual interest earned from the investment is $. How much did he invest at each amount? Use the six-step method. Information you share through social media and texting can only be seen by friends. A. True B. False HIV can remain latent for several years and not cause any symptoms in its host. What viral reproduction cycle is occurring during this latency period? What viral reproduction cycle is occurring once a person moves into the acquired immunodeficiency syndrome (AIDS) stage of HIV infection? Please help someone last one Solve please18 + 8x Which system of equations represents the graph? WILL GIVE BRAINLIEST!!Which form of prose does the following passage suggest?Its hard to get traction on gravel. The rocks are tiny and roll under your sneakers. When your legs go out from under you, you realize that youre not in control of gravity anymore.a.) fictional storyb.) functional articlec.) creative nonfiction essayd.) information report