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
lara31 [8.8K]
4 years ago
9

The length a rectangle is 2 cm grater than its width .the area is the rectangle is 80 cm square what is the width of the rectang

le
Mathematics
1 answer:
maw [93]4 years ago
4 0

Answer:

Step-by-step explanation:

If breadth =x

length =x+2

Area =length *breadth

Area =x(x+2)=80

X^2+2x-80=0

X^2 +10x - 8x - 80=0

X(x+10)- 8(x+10)=0

(X-8)(x+10)=0

X=8 or x=-10

X=8(since breadth cannot be a negative value x cannot be negative)

You might be interested in
Half a sphere is called a ?
Vesna [10]

Answer:

half a sphere is called a hemisphere

7 0
3 years ago
Read 2 more answers
Solumedrol 1.5 mg/kg is ordered for a child weighing 50 lb. Solumedrol is available as 75 mg / 1 mL is available. How many mL mu
STALIN [3.7K]
First you must convert the weight from pounds to kg. 50 pounds is 22.7kg. You divide 50 by 2.2 to get that. Then you woukd divide what was ordered by what you have on hand 1.5÷75x ml. It would equal 0.02.
8 0
3 years ago
Sara has $150 in her savings account. The amount in her account increases by %6 every year. If she does not put more money into
strojnjashka [21]

Answer:

$159

Step-by-step explanation:

we know that

The equation of a exponential growth function is equal to

y=a(1+r)^x

where

y is the balance in the saving account

x is the number of years

a is the initial amount

r is the percent rate of change

we have

a=\$150\\r=6\%=6/100=0.06

substitute

y=150(1+0.06)^x

y=150(1.06)^x

For x= 1 year

substitute

y=150(1.06)^1=\$159

3 0
3 years ago
What is the area of a square with sides of x+1
alexdok [17]
Area = (x+1) * (x+1)
Area = x^2 +2x + 1

5 0
3 years ago
Read 2 more answers
(
Sladkaya [172]

The expression is simplified to give -7x^2 - 11x

<h3>What are algebraic expressions?</h3>

Algebraic expressions are expressions that contains variables, constants, factors and coefficients.

They are also made up of arithmetic operations such as addition, subtraction, multiplication, division, etc.

From the information given, we have;

(- x^2 - 5x ) - ( 6x^2 + 5x)

expand the bracket

-x^2 - 5x - 6x^2 - 5x

collect like terms

-7x^2 - 11x

Thus, the expression is simplified to give -7x^2 - 11x

Learn more about algebraic expressions here:

brainly.com/question/4344214

#SPJ1

8 0
2 years ago
Other questions:
  • Un tren parte de la estación a las 18 horas 57 minutos exactos y llega a su destino a las 20 30 minutos 35 segundos cuánto duró
    7·1 answer
  • If two 6-sides dice are rolled, what is the probability that they will land on double fours?
    6·2 answers
  • The surface area of a rectangular prism is 15 m2.
    15·1 answer
  • X - 10.2 &gt; 5.3 <br> PLSSSSSS HELP ME SOLVE THIS PROBLEM!!!!...
    7·1 answer
  • PLEASE HELP ME WITH THIS!
    8·1 answer
  • Choose an equivalent ratio. 5:7<br><br> A) 7:9<br> B) 10:14<br> C) 14:15<br> D) 15:23
    12·2 answers
  • Re-write in slope-intercept form of an equation: x- 2y = 4
    9·1 answer
  • A theater can seat 170 people. The number of rows is 7 less than the number of seats in each row. How many rows of seats are the
    13·1 answer
  • Math homework pls help!!!
    7·1 answer
  • Find the measure of angle b​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!