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
SSSSS [86.1K]
3 years ago
7

Help please! area of rectangles and squares.

Mathematics
2 answers:
tekilochka [14]3 years ago
8 0

Step-by-step explanation:

area of rectangle

height×base

(2x-5)(2x-2)=

=4x^2-4x-10x+10

=4x^2-14x+10

(we get quadratic equation)

a=4 b=-14 c=10

firat find discriminant with formula:

D=b^2-4ac(-14)^2-(4×4×10)=196-160=36

now find x1 and x2 with formula:

X=(-b±√D)/2a

x1=(14+√36)/8=20/8=2.5

x2=(14-√36)/8=8/8=1

lets put values :

if we put x2 value as a base, which is 1 in given height and base, we will get 2(1)-2=0. measure of amy side can't be 0.

and if we put x2 in height, it will give us zero.

so no matter which one we put as value. we will get 0cm^2. so i think it cant be detected. im sorry if im wrong

mars1129 [50]3 years ago
5 0

Answer:

2x squared + 25

Step-by-step explanation:

You might be interested in
Florence has $400 in a savings account. The interest rate is 5% per year and is not
Sati [7]

Answer:

$20

Step-by-step explanation:

I = 400(.05)(1)

I = 20

3 0
3 years ago
suppose your high school basketball team scored 5 runs in saturdays game. this was four more than 1/2 the runs scored by the opp
nalin [4]

Answer:

x = 2

Step-by-step explanation:

Given that:

Your score = 5

We have to find scores of opposite team let it be x

According to given conditions:

Opponents score: (1/2)x+ 4 = 5

By simplifying:

subtract 4 from both sides:

(1/2)x + 4 -4 = 5-4

(1/2)x = 1

Multiply both sides by 2 we get

2*(1/2)x = 1*2

x = 2

Proof:

(1/2)x+ 4 = 5

Put x= 2

(1/2)*2 +4 =5

1 +4 =5

5=5

Hence proved

I hope it will help you!

6 0
3 years ago
Please help fast . It’s a test
fomenos

Answer:

18 + 38 = 56 x 16 = 896 divided by 2 = 448cm

7 0
3 years ago
Twelve fifths minus three tenths
stiv31 [10]

12/5 - 3/10 = 24-3 /10 = 21/10

OR 2.1 in decimal form

6 0
3 years ago
Read 2 more answers
3. A recipe calls for 1 1/2 cups of flour, 1/8 cup of white sugar, and 3/4 cup of brown sugar.
Sav [38]
1.05+0.125+.075 = 1 1/4
(B) I Really dont know what it means for the second one

6 0
4 years ago
Read 2 more answers
Other questions:
  • Every morning for the past 12 days, Beth used Two-thirds of a cup of milk on her cereal. To determine how much milk she used in
    12·2 answers
  • The perpendicular bisectors of sides AC and BC of △ABC intersect side AB
    10·1 answer
  • What are two consecutive integers in between square root of 45
    8·1 answer
  • Twenty different video games showing drug use were observed. The duration times of drug use ​(in seconds) were recorded. When us
    13·1 answer
  • The walking track at one fitness center is a 2/5 mile loop. If Kara walks around the track 8 1/2 times, how many miles does Kara
    13·1 answer
  • Maggie's brother is 7 years younger than four times her age. The sum of their ages is 53. How old is Maggie?
    6·1 answer
  • There are 24 members of the senate on the finance committee, how many different 13 member subcommittees can be chosen to review
    14·1 answer
  • A new movie is released each year for 8 years to go along with a popular book series. Each movie is 5 minutes longer than the la
    5·1 answer
  • What is the value of y? <br> A. 88<br> B. 46<br> C. 44<br> D. 92
    7·1 answer
  • I need help with this math question plz
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!