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
skelet666 [1.2K]
1 year ago
13

If

Mathematics
1 answer:
daser333 [38]1 year ago
4 0

The expression that equals 3C+3D in standard form is:

x²+7x+1

Given:

C = -x+2

and D = x²+8x-1

we are asked to find out an expression which equals 3C+3D in standard form.

based on the conditions, formulate:

3C+3D

substitute C and D values.

⇒ 3(-x+2) + 3(x²+8x-1)

Apply multiplicative distribution law:

⇒ open the parenthesis.

⇒ -3x+6+3x²+24x-3

calculate the product or quotient

⇒ arrange the like terms.

⇒ 3x²+21x+3

⇒ Reduce the terms.

⇒ x²+7x+1

Hence we get the equation in standard form.

Learn more about Standard equations here:

brainly.com/question/22688504

#SPJ9

You might be interested in
Abby is surveying people in the city about their interest in a new shopping mall. She found that 180 people, or 37.5% of those s
Harlamova29_29 [7]

Step-by-step explanation:

37.5% = 180people

100% = 180/37.5 x 100 = 480

answer: 480 people

Topic: percentage

If you like to venture further, do check out my insta (learntionary) where I regularly post useful math tips! Thank you!

6 0
3 years ago
An angelfish was 1 1/2 inches long when it was bought. Now it is 2 1/3 inches long.
____ [38]

A)

Earlier, The length of the angelfish  = 1 \frac{1}{2} inches

Now, the length of angelfish = 2 \frac{1}{3} inches

We have to determine the grown length of angelfish

=  2 \frac{1}{3} -  1 \frac{1}{2}

= \frac{7}{3}- \frac{3}{2}

LCM of '2' and '3' is '6',

= \frac{14-9}{6}

= \frac{5}{6} inch

Therefore, the angelfish has grown by \frac{5}{6} inch.

B)

We have to determine the increased length of angelfish in feet.

Since 1 inch = \frac{1}{12} foot

So, \frac{5}{6} inch = \frac{5}{6} \times \frac{1}{12} = \frac{5}{72}

= 0.069 foot.

7 0
3 years ago
Read 2 more answers
Ill do brainliest plsss help its a unit test due in 10 minutes
Fofino [41]

Answer:

18

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Pls tell the answer​
Mrrafil [7]
i believe this is it, ik it’s long but use this

5 0
3 years ago
Mr. Edwards has a total of 28 kids in his class. There are 6 more boys than there are girls. Write a system
ratelena [41]

Answer:

17 boys and 11 girls

Step-by-step explanation:

Create a system of equations where b is the number of boys and g is the number of girls:

b + g = 28

b = g + 6

Solve by substitution, by substituting the second equation into the first one:

b + g = 28

(g + 6) + g = 28

2g + 6 = 28

2g = 22

g = 11

So, there are 11 girls.

Since there are 6 more boys than girls, there are 17 boys.

So, there are 17 boys and 11 girls in the class.

5 0
3 years ago
Other questions:
  • A- 7 = 3(+2) What is a
    12·2 answers
  • What’s 6 divided by 3 plus 1,000,000
    11·2 answers
  • Me Thomas places order for pencils with the school emblem the order includes 15boxes of pencils and each box hold 25 pencils how
    15·1 answer
  • What’s A third of a number 9
    9·2 answers
  • Can someone help meh x= 1/2 and y= -5
    9·2 answers
  • Change 33 feet to yards
    14·2 answers
  • Asafa runs 0.75 kilometers in 6 minutes. Jemaine runs 3,000 meters in half an hour. Who ran at a faster rate?
    14·1 answer
  • A graph titled Swimmers at City Pool has Temperature (degrees Fahrenheit) on the x-axis, and swimmers on the y-axis. A trend lin
    7·2 answers
  • P=7r+3q <br> r= 5 and q= -4
    10·1 answer
  • If you are choosing a single card from a standard deck of playing cards, what is
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!