1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
brilliants [131]
3 years ago
9

What are the roots of the equation? x^2−x−42=0 Enter your answers in the boxes. x = and x =

Mathematics
2 answers:
Natasha_Volkova [10]3 years ago
8 0
Your roots are x=7 and x=-6
Lunna [17]3 years ago
3 0

Answer: x=7 or x=-6 is the answer

You might be interested in
I need help, help me plz !!!!! Match the verbal expression (term) with its algebraic expression (definition). Match Term Definit
Talja [164]

Answer:

Four less than an unknown value E) y-4

Quotient of a variable and four B) \frac{z}{4}

Some number to the power of four A) a^4

Four times an unknown value D) 4x

Four more than some number C) b+4

Step-by-step explanation:

Let's analyze each statement separately:

- Four less than an unknown value --> this means that we have to subtract 4 to an unknown value. Calling y the unknown value, it means we have to write

y-4

- Quotient of a variable and four --> this means we have to divide a variable by 4. Calling z the unknown variabl, it means we have to write

\frac{z}{4}

- Some number to the power of four --> this means that we have to write the power of a number, in the form a^m, where m in this case is equal to 4. Calling a the unknown number, it means we have to write

a^4

- Four times an unknown value --> this means that we have to multiply an unknown value by 4. Calling x our unknown values, we have to write

4x

- Four more than some number --> this means we have to add 4 to an unknown number. Calling b the unknown number, it means we have to write

b+4

7 0
2 years ago
Read 2 more answers
a square measuring 9 inches by 9 inches is cut from the corners of a square measuring 15 inches by 15 inches what is the area of
Alexandra [31]

Answer:

Step-by-step explanation:

It would be the area of the big square minus the area of the small square.

6 0
3 years ago
Carlitos purchased $13.90 of roasted almonds to make his own almond milk.He purchased 5 pounds of almonds.Assuming the cost per
AleksAgata [21]
$2.78
Explanation: 13.90/5=2.78
7 0
3 years ago
CAN I PLEASE GET SOME HELP WITH THIS? ANYONE!
Tpy6a [65]

Answer:

4/5

Step-by-step explanation:

Hope this helped :)

8 0
3 years ago
If 1200 cm2 of material is available to make a box with a square base and an open top, find the largest possible volume of the b
Colt1911 [192]

Answer:

The largest possible volume V is ;

V = l^2 × h

V = 20^2 × 10 = 4000cm^3

Step-by-step explanation:

Given

Volume of a box = length × breadth × height= l×b×h

In this case the box have a square base. i.e l=b

Volume V = l^2 × h

The surface area of a square box

S = 2(lb+lh+bh)

S = 2(l^2 + lh + lh) since l=b

S = 2(l^2 + 2lh)

Given that the box is open top.

S = l^2 + 4lh

And Surface Area of the box is 1200cm^2

1200 = l^2 + 4lh ....1

Making h the subject of formula

h = (1200 - l^2)/4l .....2

Volume is given as

V = l^2 × h

V = l^2 ×(1200 - l^2)/4l

V = (1200l - l^3)/4

the maximum point is at dV/dl = 0

dV/dl = (1200 - 3l^2)/4

dV/dl = (1200 - 3l^2)/4 = 0

3l^2= 1200

l^2 = 1200/3 = 400

l = √400

I = 20cm

Since,

h = (1200 - l^2)/4l

h = (1200 - 20^2)/4×20

h = (800)/80

h = 10cm

The largest possible volume V is ;

V = l^2 × h

V = 20^2 × 10 = 4000cm^3

4 0
2 years ago
Other questions:
  • In HIJ below, what is the value of y?<br> PLEASE ANSWER
    15·2 answers
  • Simplify the question <br> -3. (6+4.6+7
    6·2 answers
  • The product of two Even numbers
    9·1 answer
  • . Complete the missing steps in the paragraph proof of Theorem 3-8.
    14·1 answer
  • Y - 4=-2(x+3) Complete the missing value in the solution to the equation.
    9·1 answer
  • Can someone help me please? What is 6 times 6 plus 9 divided by 10 in the second power?
    12·1 answer
  • What is -2 + 5 equals??
    8·2 answers
  • Combine like terms to create an equivalent expression.<br> -1/2(-3y+10)
    8·2 answers
  • Find the value of in the triangle shown below.<br> 13<br> 12<br> X
    8·1 answer
  • Jorge is hiking a trail that is 2½ miles long. He hikes 13 miles before resting.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!