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
wlad13 [49]
3 years ago
14

Can someone pls help me with this? I will give 20 points

Mathematics
1 answer:
Ierofanga [76]3 years ago
4 0
Okay here we go!

The answer is D. 

Because when you solve the equation you get 2 and that means the arrow has to be or end at 2.


HOPE THIS HELPED! :)
You might be interested in
5x +6y = -6
nadezda [96]

Answer:

(-6,4)

Step-by-step explanation:

If this is the system of equations here is how:

solve for 1 vairuble in the first equation, and plug that it to the other.

3 0
3 years ago
Solve the inequality <br> -7&lt;3x+5 less than or equal to(no sign for that)7
olganol [36]

Answer:

x=-1

Step-by-step explanation:

-7 < 3(x) + 5 ≤  7

-7 < 3(-1) + 5 ≤  7

-7 < -3 + 5 ≤  7

-7 < 2 ≤  7

6 0
3 years ago
Snowy's Snow Cones has a special bubble gum snow cone on sale. The cone is a regular snow cone that has a spherical plece of bub
Aloiza [94]

Draw a diagram to illustrate the problem as shown below.

Calculate the volume of the empty cone.

V₁ = (1/3)π*(6 in)²*(10 in) = 120π in³

Calculate the volume of the sphere.

V₂ = (4/3)π*(1.5 in)³ = 4.5π in³

The volume that can be filled with flavored ice is

V = V₁ - V₂ = 115.5π in³ = 362.85 in³

Answer:

The volume is 115.5π in³ or 362.9 in³ (nearest tenth)

4 0
3 years ago
0.007407 to 1 significant figure
OLEGan [10]

Answer:

0.007

Step-by-step explanation:

first significant figure is the first number thts not 0 in a decimal :D

4 0
3 years ago
Read 2 more answers
Suppose a student started with 139.0 mg of trans-cinnamic acid, 463 mg of pyridinium tribromide, and 2.45 mL of glacial acetic a
Sliva [168]

Answer:

0.2889 g  brominated product

64.6 %

Step-by-step explanation:

This is a bromination chemical reaction of an alkene  and we are asked to calculate the theoretical and percent yield. Thus to solve it we have to perform a calculation based on the balanced chemical reaction.

The pyridinium tribromide is used as a generator of molecular bromine in situ, and bromine will add to the double bond in trans-cinnamic acid so we know the reaction occur in a one to one mole fashion.

trans-cinnamic acid + pyridinium  tribromide ⇒ 2,3-dibromo-3-                          

                                                                             phenylpropanoic acid

Molar weight  trans-cinnamic acid  =  148.16 g/mol

mass trans-cinnamic acid  = 139.0 mg x  1g/1000 mg = 0.139 g

# mol trans-cinnamic acid =  0.139 g / 148 g/mol = 9.38 x 10⁻⁴ mol

Since our reaction is 1 mol trans-cinnamic acid  produces 1 mol 2,3-dibromo-3-phenylpropanoic acid, it follows that the theoretical yield is:

1 mol 2,3-dibromo-3-phenylpropanoic acid /  trans-cinnamic acid x 9.38 x 10⁻⁴ mol trans-cinnamic acid  

=  9.38 x 10⁻⁴ mol  2,3-dibromo-3-phenylpropanoic acid

In grams the the theoretical yield is:

molar mass  2,3-dibromo-3-phenylpropanoic acid = 307.97 g/mol

The theoretical mass  2,3-dibromo-3-phenylpropanoic acid:

=   9.38 x 10⁻⁴ mol  2,3-dibromo-3-phenylpropanoic acid x 307.97 g/mol

=   0.2889 g

% yield = mass experimental/mass theoretical

= 0.1866 g /  0.2889 g x 100 = 64.6 %

4 0
3 years ago
Other questions:
  • Part D 1 light-minute in miles Express your answer using three significant figures. ? mi 1 light minute Request Answer Submit
    8·1 answer
  • Can someone please Find the Y, the equation to find it is in the top middle. I need the Y found for all 5 X points
    10·1 answer
  • How many twenty cent candies can I buy from $3.00
    13·2 answers
  • Evaluate 1 whole number 2/5 + 3/4 and give your answer to one significant figure​
    14·1 answer
  • What number should be placed in the box to help complete the division calculation?
    15·2 answers
  • Write down the value of √196​
    8·2 answers
  • Please will anyone help me out with this math problem? I will give them a crown.
    6·1 answer
  • 5+2+2(5)+3=4(5) plr help me​
    9·2 answers
  • If triangle weighs 1 gram how much does a square weigh
    14·2 answers
  • Question 1 of 10
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!