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
ddd [48]
3 years ago
5

Katie wants to hang a painting in a gallery. The painting and frame must have an area of 45 square feet. The painting is 6 feet

wide by 7 feet long. Which quadratic equation can be used to determine the thickness of the frame, x?a. 4x^2 + 26x + 45 = 0b. 4x^2 + 26x − 3 = 0c. x^2 + 13x − 3 = 0d. x^2 + 13x + 45 = 0
Mathematics
1 answer:
julsineya [31]3 years ago
4 0

Answer:

4x^2+26x-3 = 0

Step-by-step explanation:

Given that the total area of Frame and Painting is 45 Sq Fts.

Dimensions of painting are 6 feet and 7 feet. Hence.

Let us assume the uniform thickness of frame is x

Hence the Length of frame with painting = 7+2x

and breadth = 6+2x

Area of the frame = length * breadth

45=(7+2x)(6+2x)\\45=42+14x+12x+4x^2\\45=42+26x+4x^2\\4x^2+26x+42-45\\4x^2+26x-3=0\\

Hence option b is correct.

You might be interested in
please can someone help me with this question? i will mark brainliest and i would also really appreciate it! :)
Sloan [31]

Answer:

y ≤ 3x- 1

Step-by-step explanation:

The line is solid, so your answer must have a ≤ or ≥ symbol. And the area below the line is shaded so you would also know you answer must have a ≤ or < symbol.

8 0
2 years ago
Read 2 more answers
Can someone help me please
m_a_m_a [10]

Answer:

d

Step-by-step explanation:

5.53eqbhabsfnbhjvfwj

4 0
3 years ago
Factor x3 – 7x2 – 5x 35 by grouping. what is the resulting expression? (x2 – 7)(x – 5) (x2 – 7)(x 5) (x2 – 5)(x – 7) (x2 5)(x –
mars1129 [50]

The factored expression ofx^3 - 7x^2 -5x +35 is (x^2 - 5)(x - 7)

<h3>What is an expression?</h3>

An expression is an algebraic term used for a mathematical statement that includes addition subtraction multiplication and division

x^3 – 7x^2 – 5x + 35

factor the given equation

x^2(x – 7) – 5(x - 7)

Factor out x - 7

(x^2 - 5)(x - 7)

Therefore, the factored expression is (x^2 - 5)(x - 7)

To learn more about the factored expression visit:

brainly.com/question/723406

7 0
2 years ago
Bekah is looking to find a close condo to the university campus. She learns that the mean rent for a condo is \$1900, and the st
saul85 [17]

Answer:

68.268%

Step-by-step explanation:

We solve using z score formula

z = (x-μ)/σ, where

x is the raw score

μ is the population mean = $1900

σ is the population standard deviation = $200

For x = $1700

z = $1700 - $1900/$200

z = -1

Probability value from Z-Table:

P(x= 1700) = 0.15866

For x = $2100

z = $2100 - $1900/$200

= 1

Probability value from Z-Table:

P(x = 2100) = 0.84134

The probabilty of the population that has a rent price between $1700 and $2100

P(x = 2100) - P(x = 1700)

0.84134 - 0.15866

= 0.68268

Converting to percentage

= 0.68268 × 100%

= 68.268%

The percentage of the population that has a rent price between $1700 and $2100 is 68.268%

3 0
3 years ago
Deborah found that six of the 24 students in her class on a cell phone what is the ratio of students that own a cell phone to st
eduard
So Deborah found 1/4 of the students had a cell phone and so what is left I think it will be this 4:1
4 0
3 years ago
Read 2 more answers
Other questions:
  • Yup,here's another. so pretty sure I know this one too but I need another answer in case I'm wrong.
    7·1 answer
  • What is the length of BC, rounded to the nearest tenth?
    7·2 answers
  • 19= 7a + 7 -2 what is the and to this need help ASAP
    5·2 answers
  • Determine the slope of the line that passes through the points (-2, 5) (1, -7)
    15·2 answers
  • Dale is in a ski rental shop trying to decide which equipment to rent for the day. The shop offers 4 kinds of skis and 3 kinds o
    14·2 answers
  • 1. A community swimming pool is 7 yards 4.79 feet wide. How wide is the pool in meters and centimeters?
    8·1 answer
  • HELP ME PLZ!!!!!! Which values equivalent to the fraction below? CHECK ALL THAT APPLY.
    6·1 answer
  • City R has a temperature of −2 °F. City S has a temperature of −6 °F. Use the number line shown to answer the questions: Number
    11·2 answers
  • PLEASE HELP (30 POINTS)
    14·1 answer
  • Lily ran 100 meters in 15 seconds. How long did she take to run 2 meters
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!