X^2 + X - 12 = 0
In the equation above a is a solution. If a > 0 what must a be equal to?

a: -4
b: 4
c: -3
d: 3

Answers

Answer 1
x^2+x-12=0

x^2+4x-3x-12=0

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

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

x+4=0
x-3=0

x=-4
x=3

Related Questions

what is 0.5p=p+5?
the homework said move p to the other side but i dont really understand that

Answers

Answer: p=-10

Step-by-step explanation:

0.5p=p+5

-p     -p

-0.5p=5

Multiply by -0.5 on each side

p=-10

The value of p in 0.5p=p+5 is -10.

What is Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given:

0.5p=p+5

Now, solving for p

For which p from Right side should be moved to left side

0.5p - p= 5

-0.5p = 5

Now, Divide both side by (-0.5)

-0.5p/ (-0.5)= 5/(-0.5)

p = -10

Hence, the value of p is -10.

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How do you know that a system has no solution?

Answers

Answer:

A system of linear equations has no solution when the graphs are parallel. Infinite solutions. A system of linear equations has infinite solutions when the graphs are the exact same line.

Step-by-step explanation:

can someone help me plz ​

Answers

Answer:

this is just a guess but 81

Step-by-step explanation:

I hope it is right, but I just did quick math.

so it might also be 82 if you round up to the nearest number. (sorry if this is confusing)

Help will give brainlist

Answers

Answer:

I think it's D also

Step-by-step explanation:

D is my best answer plus I don't think it would be negative and it would be a fraction

34.39/0.30
what is the answer​

Answers

Answer:

114.633333333

Step-by-step explanation:

the answer is 114.63333... hope this helps!

Help me pleasee I will give brainlst

Answers

Answer:

d) The angles are not equal. The sides of one of the triangles changed, thereby changing its area.

Explanation:

If you look at figure 2, the triangle on top decreased in size.

Anyone know this?? I need it ASAP

Answers

The answer is A. one solution because the lines only cross eachother once

Oliver is 33 years older than his son. Eight years ago, Oliver's age is five more than thrice his son's present age. How old is Oliver now?


pls answer with solution :]​

Answers

Answer:

47

Step-by-step explanation:

Let us assume his son be x

So, the oliver age is x + 33

Now eight years ago, oliver age is 5 more than thrice his son present age

x - 8 = 5 + 3x

So,

33 + x = 5 + 3x

2x =28

x=14

o = 33+14 = 47

In ΔMNO, the measure of ∠O=90°, MN = 27 feet, and OM = 20 feet. Find the measure of ∠M to the nearest degree

Answers

Answer:

42

Step-by-step explanation:

Answer:

Step-by-step explanation:

39 is 5% of what number?

Answers

Answer:

780

Step-by-step explanation:

Explanation:

To get from  

5% to 100% you multiply by 20, so multiply the number in this case 39 by 20 percent.

39 is 5 percent of 780.

Given that we need to find 39 is 5% of what number,

To find the number that 39 is 5% of, we can use the concept of proportions.

Let's assume the number we're looking for is represented by "x." We can set up the proportion:

39 is 5% of x

Mathematically, this can be written as:

39 = 0.05x

To solve for x, we divide both sides of the equation by 0.05:

39 / 0.05 = x

The result is:

x = 780

Therefore, 39 is 5% of 780.

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PLEASE HELP/LAST CHANCE TO GET A GOOD GRADE
Which expressions are equivalent to 2^5/6^5?

Answers

Answer:

B, D

Step-by-step explanation:

2^5/6^5=0.00411522633744855967

3^-5=0.00411522633744855967

2^5x6^-5=0.00411522633744855967

the answer is B 3^-5

Find the measure of each angle indicated. Round to the nearest tenth.

Answers

I don't know sorry anjsjdjd

Answer:

I don't really understand what you're asking but, m<C equals 90⁰, and i think angle A's measurement says 0⁰, so I'm guessing you have to find angle B?

Mr. Martinez wants to get a cell-phone plan. He has
two other deals:
Deal A: T-mobile with initial fee of $200 and
$30 fee each month
Deal B: Verizon with no initial fee and $40 fee each
month
Help Mr. Martinez to select a better deal.

Answers

Answer:

Deal B is better

Step-by-step explanation:

over a year in payment Deal b will be less

Identify the type of triangle by looking at the sum of the angle
measures.
105 + 65 + 10 = 180°
a Right
b Acute
C Equiangular
d Obtuse

Answers

I believe it is an obtuse triangle. Because one triangle is so big there isn’t any 90 degrees and therefor not a right. It might be acute but it had an obtuse side.

Answer:

obtuse

Step-by-step explanation:

An obtuse-angled triangle is a triangle in which one of the interior angles measures more than 90° degrees. 

Transform the linear equation to slope-intercept form and select the graph that
represents that function.

Answers

Answer:

The correct one is B

1. Isaac can invite no more than 12 friends to his party.

Answers

Answer:

woooooow

Step-by-step explanation:

Which numbers will round to 25 when they are rounded to the nearest whole number?

Select each correct answer.

25.47

25.09

25.72

24.49

24.38

Answers

Answer:

25.47, 25.09

Step-by-step explanation:

looking at only the tenths they round down to 25.

The numbers that would round off to 25 when rounded to the nearest whole number are 25.09 and 24.49.

What are the numbers that would round off to 25?

When one is to round off to the nearest whole number, the numbers after the decimal point are to be eliminated.

To round off to the nearest whole number, if the tenth figure is equal to 5 or greater than 5, 1 would be added to the unit term, if this is not the case, zero would be added to the unit term.

When 25.09 and 24.49 are rounded off to the nearest whole number, it becomes 25

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the length of a rectangle is 3 more than the width. if the area is 40 square inches, what is an equation to find the area and what is the length of the rectangle

Answers

Answer:

5 x 8 = 40 square cm

Step-by-step explanation:

a rectangle is graphed on the coordinate grid. which represents the equation of a side that is parallel to side s?​

Answers

Answer:

mmmm. give it to. meeee.

Given that a/b=2/5 and b/c= 3/4. Find a:b:c

Answers

Answer:

a:b:c = 6:15:20

Step-by-step explanation:

Given;

[tex]\frac{a}{b} = \frac{2}{5} \ \ and \ \ \frac{b}{c} = \frac{3}{4}[/tex]

a:b:c is determined as follows;

a:b = 2:5    and      b:c = 3:4

find the common factors in both equation = b = 5 and 3

Then, multiply the first equation by 3 and second equation by 5, so that value of b in both equations will be the same.

a:b = 6:15    

b:c = 15:20

Thus, a:b:c = 6:15:20

A helicopter is hovering over a landing pad 100 m from where you are standing. The helicopter's
angle of elevation with the ground is 15°. What is the altitude of the helicopter? (Round answer to 2
decimal places)

Answers

Answer:

26.79 meters

Step-by-step explanation:

tan15 = x/100

x = 100tan15 ≈ 26.79

Answer is 26.79m

Angle of elevation and tan Formula:

The angle of elevation is the angle between the horizontal line of sight and the object.

The tan angle = the length of the opposite side / the length of the adjacent side.

Here, the angle of elevation is 15 degrees.

Let's altitude of the helicopter is h.

The horizontal distance is 100m

tan(15°) = h / 100

0.2679 = h / 100

=> h = 0.2679 * 100

=> h = 26.79m

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what is 0+0+0+0+0+0=?​

Answers

Answer:

34

Step-by-step explanation:

Answer:

its 0 :)

Step-by-step explanation:

Find the value of +c15 when =c4.

Answers

It equals 60 u do 15* 4

How do you write 3:5 in the ratio 1:n

Answers

Answer:

[tex]\frac{3}{5n}[/tex]

Step-by-step explanation:

To write a polynomial in standard form, simplify and then arrange the terms in descending order.

ax²+bx+c

Rewrite the division as a fraction.

(3÷5)⋅1/n

Multiply 3÷5 by 1.

(3÷5)/n

Rewrite the division as a fraction. (3/5)/n

Multiply the numerator by the reciprocal of the denominator.

(3/5⋅(1/n)

Multiply 3/5 and 1/n.

3/5n

PLS PLS PLS HELP DONT TAKE POINTS AND IF U CAN EXPLAIN AS WELL:)
Determine which two values the following expression is between.
7√37
A.
42.56 and 42.57
B.
42.54 and 42.55
C.
42.57 and 42.58
D.
42.55 and 42.56

Answers

Answer:

Step-by-step explanation:

When you put this into your calculator, you get

42.5793

A: The largest number is too small

B: The largest number is too small

C: This is the answer. The calculator answer will round to 42.58, but before you round the answer is between 42.57 and 42.58

D: and again the largest value is not big enough

Answer:

C

Step-by-step explanation:

7[tex]\sqrt{37}[/tex] = 42.5793377

42.5793377 rounded down is 42.57

42.5793377 rounded up is 42.58

i realy need help please​

Answers

Answer:

x = 128 degrees

Step-by-step explanation:

First figure out the angle inside the triangle

1st step: add 55 and 73 together:

⇒ 55 + 73 = 128

2nd step: subtract the sum from 180:

⇒ 180 - 128 = 52

to find x, take 180 again and then subtract 52 from it:

⇒ 180 - 52 = 128

First lest’s find the measure of the missing angle in the triangle we have the sup of the angles in a triangle is equal to 180 so the missing angle will be 180- 73-55 = 52
Now let’s find x we have a 180 degrees angle so to find x we have to subtract 52 from 180.
The answer will be x = 128 degrees

which of the following choices is the value of csc 0?

Answers

csc 0 = r/y
r = sqrt 81 + 144
r = sqrt 225
r = 15

csc 0 = 15/12

The value of [tex]csc(\theta)[/tex]  is  [tex]\frac{15}{12}[/tex]

What is right triangle?

"It is a triangle in which one of the angle measures 90° "

What is hypotenuse?

"It is the longest side of the right triangle."

What is Pythagoras theorem?

"For a right triangle, [tex]x^{2}+ y^{2}=z^{2}[/tex], where z is the hypotenuse and x, y are other two sides of the right triangle."

What is csc of angle?

"In a right triangle, csc of angle is the ratio of the hypotenuse to the opposite side of angle."

For given question,

First we find the hypotenuse of the right triangle.

Using Pythagoras theorem,

[tex]\Rightarrow 9^{2} + 12^{2}= r^{2}\\\\ \Rightarrow 81 + 144=r^2\\\\\Rightarrow r=\sqrt{225}\\\\ \Rightarrow r=15[/tex]

so, the hypotenuse is r = 15

Now we find the csc of angle [tex]\theta[/tex]

[tex]\Rightarrow csc(\theta)=\frac{hypotenuse}{opposite~side~of~\theta} \\\\\Rightarrow csc(\theta)=\frac{15}{12}[/tex]

Therefore, the value of [tex]csc(\theta)[/tex] is [tex]\frac{15}{12}[/tex]

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What is the perimeter of the rectangle below?

Answers

Answer:

36 in

Step-by-step explanation:

7+7+11+11= 36

Answer:

36 inches

Step-by-step explanation:

2 7inch sides plus 2 11 inch sides

2x7= 14

2x11= 22

14+22= 36 inches

HELP ME PLEASE 15 POINTS!!!
What is the equation of the axis of symmetry of a parabola
if its x-intercepts are -3 and 5?

Answers

Step-by-step explanation:

What equation of axis of symmetry of a parabola if its x-intercepts are 5 and -5. x = 0 is the axis of symmetry. that is the equation of the axis of symmetry because the vertex occurs when x = 0. the line passing through the vertex is the axis of symmetry.

PLS GIVE BRAINLIEST!

Hopfully, I got this right I tried hard. HAVE A WONDERFUL TUESDAY!

what is the center and radius of a circle with an equation (x+5)2 +(y-1)2 = 64​

Answers

Answer: x = -y+28

Step-by-step explanation:

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