Mathematics High School

What are the zeros of the equation x^2+7x+12=0

Answers

Answer 1

Answer:x=−3 or x=−4

Step-by-step explanation:Step 1: Factor left side of equation.

(x+3)(x+4)=0

Step 2: Set factors equal to 0.

x+3=0 or x+4=0

x=−3 or x=−4

Related Questions

275% of 12
HELP ME PLSSSSS

Answers

Answer:

Step-by-step explanation:

275*12 /100 =33

have a nice day!!

Answer:

33 love

Step-by-step explanation:

please solve it step by step

Answers

Answer:

5/3

Step-by-step explanation:

multiply the 4 out to get 2x-4/3=2

sub 4/3 from each side to get 2x=2+4/3

2x=10/3

x=10/6

x=5/3

Lupe's heart beats 288 times in 4 minutes. which equation represents the number of times her heart beats per minutes.
A.) y=1/288x
B.) y=1/72x
C.) y=72x
D.) y=288x

Answers

Answer:C

Step-by-step explanation:

288 divided by 4 equals 72

Option C is correct, y=72x is the equation which represents the number of times her heart beats per minutes.

What is Division?

A division is a process of splitting a specific amount into equal parts.

The equation that represents the relationship between the number of times Lupe's heart beats per minute and the time (in minutes) is:

y = 72x

where y is the number of times Lupe's heart beats per minute, and x is the time in minutes.

We can see this by dividing the total number of heart beats by the time in minutes:

y = (288 beats / 4 minutes) = 72 beats/minute

Hence, y=72x is the equation which represents the number of times her heart beats per minutes.

To learn more on Division click:

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what is slope

(4,5)and (4,7)

Answers

Answer:

x=2

Step-by-step explanation:

the slope is vertical meaning it is undefined.

Answer:

The slope is 2

Step-by-step explanation:

input output

4 5

4 7

The difference between 4 and 4 is 0

The difference between 5 and 7 is 2

Therefore, your slope is 2

Use the equation y = 5/2 x.

What is the value of y, when x = 2?

Answers

Answer:

Step-by-step explanation:

if x=2, then it would be 5/2 times 2. first, lets make 5/2 into a whole number, 2 1/2. that would be 2 1/2 x 2. lets do them indevidually. 1/2 x 2 is 1. and 2 x 2 is 4. now, if we add 4 and 1, that would give is a result of 5.

making the answer 5

sentence with the product of 4/5 and 5/2 is greater than 4/5 which statement is true

Answers

I got 2 this statement is true

help me for brainlist

Answers

Answer:

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

Calculate the length of AC to 1 decimal place in the trapezium below.
А
16 cm
e
B
11 cm
4 cm
С

Answers

The length of AC to one decimal place in the trapezium is 18.1 cm

Calculations and Parameters

If we use Pythagoras theorem,

c² = a² + b²

We would draw a line from point B to the line AD and call it line BX.

BX ║ CD

This computes as:

16² - 7² = BX²256 - 49 = BX²BX² = 207BX = √207BX = 14.3874945699BX = 14.4 cm

Next step:

11² + 14.4² = AC²121 + 207.36 = AC²AC = √328.36AC = 18.120706388AC = 18.1 cm

Answers

Answer:

Step-by-step explanation:

Charlie runs laps around a track. the table shows how long it takes him to run different numbers of laps. how long will it take Charlie to run five laps?

Answers

Answer:

20 (minutes)

Step-by-step explanation:

Look at the first columns, and it tells us that Charlie runs 2 laps in 8 minutes. Then simply divide by two, then you'll get that Charlie runs 1 lap in 4 minutes. So for five laps, multiply 4 by 5, which is 20.

It would take him 20 minutes. Since the bottom of the chart goes up by 8 each time while the top goes up by two, only adding half of 8 (4) on the bottom would make the most sense. Since those numbers go up by two. Going up or down one would make you have to add or subtract 4 to get to in between numbers.

The diameter of a baseball is approximately 3 inches. What is Its volume? Round your answer to the nearest whole number.

Answers

Answer:

Volume = 14 (rounded to the nearest whole number)

Step-by-step explanation:

Volume = 4/3[tex]\pi r^3[/tex]

If the diameter is 3 inches the radius will be 1.5.

If you plug that in you get

V = 4/3[tex]\pi 1.5^3[/tex]

V=14.137

The volume of the baseball is 14 in³.

The volume of a sphere can be calculated using the formula:

V = (4/3)πr³

where V is the volume and r is the radius of the sphere.

We have,

Diameter = 3 inch

radius = diameter / 2 = 3 / 2 = 1.5 inches

Substituting the radius into the volume formula:

V = (4/3) π (1.5)³

V ≈ (4/3) x 3.14 x (1.5)³

V ≈ 14.13 in³

Thus, the volume of the baseball is 14 in³.

Learn more about Volume here:

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a 13-foot long ladder leans against the wall. the foot of the ladder is at a distance of 5 feet from the base of the wall.
What is the distance, in feet, from the ground to the ladder?

Answers

Answer:

The distance, in feet, from the ground to the ladder is 12 feet.

Step-by-step explanation:

To answer this question, we must use the Pythagorean Theorem- a^2+b^2=c^2. C is the hypotenuse, and a and b are legs.

We have: 5^2+b^2=13^2

Simplifying: 25+b^2=169

Subtracting 25 from both sides: b^2=144

B=12.

1. Find the area of the triangle. 3 yd 10 yd 6.5 yd? 30.0 yd2 13.0 yd2 15.0 yd2

Answers

Answer:

Step-by-step explanation:

1/2(6.5 x 3) = 9.75

you want to do 1/2bh.

So, take the two legs (3 and 6.5) and multiply them and then multiply them by 1/2

The area of the given triangle is expressed as: 15.0 yd²

What is the area of the triangle?

The formula to calculate the area of a triangle is expressed as:

A = ¹/₂ * b * h

where:

A is area

b is base

h is height

We are given:

b = 10

h = 3

Thus:

A = ¹/₂ * 10 * 3

A = 15.0 yd²

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help please! answer correctly for brainliest . ( look at picture for question and answer choices )

Answers

Answer:

Step-by-step explanation:

It starts above the ground (at Henry's height) and ends above the ground (in the bush).

PLEASE HELP NEED ANSWER ASAP!!!!!!!!!!!!!!!!

Answers

Answer:

sorry the image is not their

Step-by-step explanation:i would help if you give me the picture.

First and third are correct

I'm not sure which theorem is used

Answers

Answer:

that's angle side angle so ASA

What is the slope of the line that passes through the points (-2,-6) and
(14,-2)

Help please!!

Answers

Answer:

1/4 please put me the brainliest

Step-by-step explanation:

1. Slope
Slope: (Yb - Ya) / Xb - X-a
= (-2 - (-6)) / (14 - (-2)
= (-2 + 6) / (14 + 2)
= 4/16
= 1/4

2. Y-intercept
Y = mx + b
-6 = (1/4)(-2) + b
-6 = -0.5 + b
-6 + 0.5 = -0.5 + 0.5 + b
-5.5 = b
B = -5.5

Equation:
Y = 1/4x + -5.5
Y = 1/4x - 5.5

Each exterior angle of a regular n-gon has a measure of 9º. How many sides does the polygon have?

Answers

They have 5 sides in total

Answer:

Step-by-step explanation:

All exterior angles of any regular n sided polygon add up to 360 degrees.

360/9=40

Pls help! Due today. The last box is the choices of a.m or p.m

Answers

Answer: 12pm

Step-by-step explanation: it takes him 2 hours to fill 1800 another 2 hours would be 12pm if you have 1000+1000 you get 2000. then add 800 and 800. you get 1600 add them all together you get 3600.

Answer:

12 pm

Step-by-step explanation:

thank you for reposting ir btw

[tex]9 - 3 \div \frac{1}{3} + 1[/tex]
i need help with math problem

Answers

Given:

The expression is

[tex]9-3\div \dfrac{1}{3}+1[/tex]

To find:

The value of given expression.

Solution:

We have,

[tex]9-3\div \dfrac{1}{3}+1[/tex]

BODMAS : Bracket, Order, Division, Multiplication, Addition, and Subtraction.

Using BODMAS, first we need to perform division in the given expression.

[tex]=9-(3\div \dfrac{1}{3})+1[/tex]

[tex]=9-(3\times 3)+1[/tex]

[tex]=9-9+1[/tex]

Now, apply addition.

[tex]=(9+1)-9[/tex]

[tex]=10-9[/tex]

Now, apply subtraction.

[tex]=1[/tex]

Therefore, the value of given expression is 1.

need help i don’t understand!

Answers

When solving for a coefficient the variable to look for is 1

Ill give brainliest!! please help with algebra!! Find the factors of these trinomials

Answers

12. 4(2x+1) squared 2
13. (9p squared 2- 5) squared 2
14. (2x-15) squared 2
15. 25 ( x squared 2 + 1) squared 2
16. (6y - 13) squared 2
17. 120b squared 2 + 1
18. (7q squared 4 + 2) squared 2
Hope that helped

Slope stuff, answer pls

Answers

for number 7 it’s “y-(-1) = -1/6(x-(-6)” for 8 the slope is -1/6, in the point slope equation, the answer is “y-6=-1/6(x-(-2)” i hope this helped;) and i’m so sorry if this is wrong

Someone pls help me now

Answers

Answer:

Step-by-step explanation:

Distance divided by time

90 divided by 3 is 30

30 miles in an hour

The answer would be A

One angle of an isosceles triangle measures 40°. Which other angles could be in that
isosceles triangle? Choose all that apply.
40°
70°
100°
20°

Answers

Answer:

40 and 100

Step-by-step explanation:

Plz help!!! Will give brainliest and 50 points!!

Answers

Answer:

x = 38°

Step-by-step explanation:

see the solution in given pic

[tex]\\ \sf\longmapsto 180-134=46[/tex]

[tex]\\ \sf\longmapsto 180-84=96[/tex]

Now using angle sum property

[tex]\\ \sf\longmapsto x+96+46=180[/tex]

[tex]\\ \sf\longmapsto x+142=180[/tex]

[tex]\\ \sf\longmapsto x=180-142[/tex]

[tex]\\ \sf\longmapsto x=38[/tex]

Given that
a = 5,b = –2 and c = -2
work out
2b – 3ac

Answers

Answer:

[tex]2b - 3ac \\ a = 5 \: \: \: \: b = - 2 \: \: \: c = - 2 \\( 2 \times - 2 )- (3 \times 5 \times - 2) \\ (- 4) - ( - 30) \\ - 4 + 30 = 26[/tex]

I NEED HELP ON THIS QUESTION ASAP ANSWER ALL PLEASE

Answers

It’s a
Step by step to cool to be true

Answer:

the mean is 9 and the median is 8

Step-by-step explanation:

Mean: (1+8+13+12+2)÷5=9

(plus all the numbers then divide it by the number of numbers)

Median: set the numbers in order (1 2 8 12 13) then it's the number in the middle so 8

write the equation of the line in fully simplified slope- intercept form

Answers

Find 2 points on graph
(2,2) and (3,5)
(5-2)/(3-2) = 3/1, slope is 3
Y = 3x + b
Plug in any point
2 = 3(2) + b
2 = 6 + b, b = -4
Solution: y = 3x - 4

A kite is 14 ft off the ground and a horizontal distnace of 29 feet awat from you what is the angle measure of x

Answers

Answer:

28.9°

Step-by-step explanation:

This is a Trigonometry question

From the above, question,

The horizontal distance = Adjacent = 29 feet

The distance of the kite from the ground = Opposite= 14 feet

We solve using the Trigonometric function of Sine

sin θ = Opposite/Adjacent

sin θ = 14/29

θ = arc sin (14/29)

θ = 28.865727415°

Approximately = 28.9°

Therefore, the angle measure of x = 28.9°

Answer:the angle measure of x = 28.9°.

Step-by-step explanation

The distance of the kite from the ground = Opposite= 14 feet ... θ = arc sin (14/29) ... Therefore, the angle measure of x = 28.9°.

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