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Readme [11.4K]
4 years ago
9

How many real number solutions does the equation have? 0=3x2+18x+27

Mathematics
2 answers:
swat324 years ago
7 0
It has only one solution 
Morgarella [4.7K]4 years ago
4 0
3(x²+6x+9)=0
3(X+3)(x+3)=0
x=-3 so one solution
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Rosa has 16 pieces of ribbon that she is using for a project.if each ribbon is 5/8 yard long how many yards of ribbon does rosa
tankabanditka [31]

Answer:

Step-by-step explanation:

Length of each ribbon = 5/8 yards

Length of 16 pieces of ribbon = 16* (5/8)

                                                  =16*\frac{5}{8}\\\\=2 * 5 \\\\=10

                                                 = 10 yards

5 0
3 years ago
(Pre-Algebra)<br><br> PLEASE HELP ME WITH THE QUESTIONS ABOVE!
faust18 [17]
A) 460 ≥9.50h+60

B) the minimum of hours Jessie can work is about 42 hours.
3 0
4 years ago
What is the difference of the polynomials
yarga [219]

The correct answer is A.

In order to find the correct answer in this one, you have to group all of the like terms. In this case, each term is unique with the exception of the x^2y^3 terms. Therefore, we need to check those first.

4x^2y^3 - (-5x^2y^3)

4x^2y^3 + 5x^2y^3

9x^2y^3

Since this term is included, we look for answers that involve this one. A is the only one that does. Plus, it includes each other term unchanged (which is good since there are no other like terms). Therefore, A is your answer.

3 0
3 years ago
Read 2 more answers
Use the net below to determine the surface area of the cylinder. (Use 3.14 for Tr.)
baherus [9]

Option D:

Surface area of the cylinder = 753.6 cm²

Solution:

<u>To find the surface area of the cylinder:</u>

Given data:

Radius of the cylinder = 6 cm

Height of the cylinder = 14 cm

The value of π = 3.14

Surface area of the cylinder = 2 \pi r^{2}+2 \pi r h

                                              =2\times 3.14\times6^2+2\times3.14\times 6 \times14

                                              = 226.08 + 527.52

                                              = 753.6 cm²

Surface area of the cylinder = 753.6 cm²                          

Option D is the correct answer.

8 0
4 years ago
HELP WILL GIVE BRAINLIEST TO CORRECT ANSWER
NeTakaya

Step-by-step explanation:

x=90°

SUM OF ALL ANGLES OF PENTAGON =540

90+2(180-Y)+105+113=540

90+360-2Y+105+113=540

488-2Y=540

7 0
3 years ago
Read 2 more answers
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