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
Andru [333]
3 years ago
5

35 POINTS - question 31 please!

Mathematics
1 answer:
ryzh [129]3 years ago
5 0

Area is Length x width:

(2x+5) * x = 420

Distributive property:

2x^2 +5x = 420

Subtract 420 from both sides:

2x^2 + 5x - 420 = 0

Using the quadratic formula:

a = 2, b = 5, c = -420:

-5 +/ √5^2 -4*(2*-420) / 2*2

x = 13.2951

Rounded to the nearest hundredth = 13.30 inches.

You might be interested in
Triangle TRS is similar to triangle TMN. Angle T = 40°, angle R = 60°, and angle S = 80° . What is the measure of angle M
Andre45 [30]

Answer:

60degrees

Step-by-step explanation:

For similar triangles, the angles of their angles are equal to matter the size.

Hence if triangle TRS is similar to triangle TMN, then;

<R = <M and <S = <N

Given that;

<T = 40 degrees

<R = 60degrees

<S = 80 degrees

Since <R = <M, then <M = 60degrees

7 0
2 years ago
Which expression is equivalent to:
Paul [167]

B.) 10x-5 is equivalent to 6x – 5 + x + 3x

4 0
3 years ago
A small toy car costs $3.A large toy car costs 5 times as much as the small one.Aaron wants to buy one of each.Which equation ca
adell [148]

Answer:$18.00

Step-by-step explanation:5×3=15

$3+$15=$18

6 0
3 years ago
Read 2 more answers
Jim Tree will drive from his home in Jackson Heights to Jones City. The distance on the map measures 3 1/2 inches. The scale on
expeople1 [14]
Just multiply !!

so 1 inch = 5 miles
3.5 inch must be 3.5×5 = 17.5 miles

so the answer is 17.5 miles !!
7 0
3 years ago
Read 2 more answers
Brady studied 1.5 hours on Monday, 0.75 hours on Tuesday, 1.25 hours on Wednesday, and 1 hour on Thursday. How
Advocard [28]

Brady studied for 4.5 hours that week

How we determine the total study hours?

The total study hours for Brady is the sum of the hours used in studying on Monday, Tuesday, Wednesday and Thursday.

He studied for 1.5 hours on Monday

He studied for 0.75 hours on Tuesday

He studied again for 1.25 hours on Wednesday

Lastly, he studied for 1 hour on Thursday, the last day

Total number of study hours=1.5+0.75+1.25+1

Total number of study hours=4.50

Find out more about study hour on: brainly.com/question/876733

#SPJ1

8 0
2 years ago
Other questions:
  • Can a pentagon be a cross section of a triangular prism?
    11·1 answer
  • Pentagon PQRST and its reflection, pentagon P'Q'R'S'T', are shown in the coordinate plane below:
    12·2 answers
  • an someone please help me: A football field measures 300 feet in length. It can also be expressed as approximately 5.7 times 10
    6·2 answers
  • 12 1/2 as a decimal .......................................................
    10·2 answers
  • Last month, Katie started training for the swim team. She swam 20 laps every day for 18 training days. This month, Katie wants t
    10·1 answer
  • Fred the ant is on the real number line, and Fred is trying to get to the point O
    15·1 answer
  • What is the image of the point (0,9) after a rotation of 90° counterclockwise about<br> the origin?
    7·1 answer
  • What is 247 divided by 4?
    6·2 answers
  • 2. Write the equation of the line of best fit using the slope-intercept formula $y = mx + b$. Show all your work, including the
    6·1 answer
  • I really need someone to answer this, QUICK!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!