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
aliina [53]
2 years ago
13

Ingrid dug a trench 18/20 of a meter long. the next day she dug 9/20 of a meter more of the trench. what is a reasonable estimat

e of the total length of the trench?​
Mathematics
1 answer:
Alla [95]2 years ago
8 0
I got I got x^2+10x-100=1475
You might be interested in
Evaluate the expression 4+−4√2+−1√ and write the result in the form a+bi.
castortr0y [4]

In the expression, the real number a equals 12 and the real number b equals -16.

<h3>How to explain the information?</h3>

It should be noted that the expression given is:

= (4 - 2i)²

Therefore, we need to expand the expression. This will be:

= (4 - 2i)(4 - 2i)

= 16 -8i -8i + 4i²

= 16 -16i +4i²

Substitute -1 for i²

= 16 - 16i + 4(-1)

= 16 - 16i - 4

= 12 - 16i

Therefore, the value of the expression is 12 - 16i.

Learn more about expressions on:

brainly.com/question/723406

#SPJ1

Evaluate the expression ( 4 − 2 i )² and write the result in the form a + b i.

8 0
2 years ago
Gavin plans to mix a batch of tangerine paint. He expects to have a total of 5 3/10 ounces of paint after he mixes the amounts o
SVEN [57.7K]
Tangerine is simply color orange, which is an addition of red and yellow colors. To analyze if the portions written below are reasonable, the given sum must equal to the sum of the individual red and yellow parts.

Total Red + Total Yellow = 5(3/10)
3(9/10) + 2(3/8) ? 5(3/10
3.45 ? 1.5
3.45 ≠ 1.5

<em>Since they are not equal, then it means the portions are unreasonable.</em>
3 0
3 years ago
When factoring a polynomial in the form ax2 + bx + c, where a, b, and c are positive real numbers, should the signs in the binom
gtnhenbr [62]

When factoring a polynomial in the form ax2 + bx + c, where a, b, and c are positive real numbers, the signs in the binomials should be both positive

<h3>What are quadratic equations?</h3>

Quadratic equations are second-order polynomial equations and they have the form y = ax^2 + bx + c or y = a(x - h)^2 + k

<h3>How to determine the true statement?</h3>

The form of the polynomial is given as:

ax2 + bx + c

Where a, b, and c are positive real numbers.

Since a, b, and c are positive real numbers. then the form of the expansion would be:

ax2 + bx + c = (dx + e)(fx + g)

<h3>Example to verify the claim</h3>

Take for instance, we have the following quadratic equation

x^2 + 6x +  8

Expand the equation

x^2 + 6x +  8 = x^2 + 4x + 2x +  8

Factorize the equation

x^2 + 6x +  8 = (x + 2)(x + 4)


Hence, the signs in the binomials should be both positive

Read more about polynomials at:

brainly.com/question/4142886

#SPJ1

5 0
1 year ago
It says (m-4)(-6) and I have no clue how to solve it
rusak2 [61]
The answer is going to be ((m-6)*-6= -((6 * m-6)).


hope that helped
3 0
3 years ago
Select the term that best describes the statement A triangle is acute provided all the angles have a measure of less than 90 deg
Aloiza [94]
I think the correct answer is conjunction...
4 0
3 years ago
Read 2 more answers
Other questions:
  • Chan hee purchased a bicycle for $259.99 and a helmet for $67. The sales tax rate is 8.25% What is the total purchase price to t
    15·2 answers
  • Just please help me I'm done with this work
    11·2 answers
  • What is 20% out of 200
    6·1 answer
  • How to justify each step in the solution of 5x+15=0
    11·1 answer
  • Owen had 18 guitars. He sold 5 guitars and kept the rest. What is the ratio of guitars he kept to guitars he sold?
    5·2 answers
  • Brendan has a cherry tree in his yard. Currently the tree is 9 feet tall. That is 50% taller than it was when Brendan planted it
    12·2 answers
  • Yolanda's age is 5 years less than twice Marco's age. If Yolanda is 15 years old, how old is Marcus? Choose the answer below tha
    12·1 answer
  • If 25.20 cost for a pack of 9 padlocks how much is it for a per padlocks
    15·2 answers
  • Change: f(x) = (x+2) (x-2) to standard form
    7·1 answer
  • A circular running track is 1/2 mile long. Elena runs on this track, completing each lap in 1/10 of an
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!