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
natali 33 [55]
3 years ago
11

Factorise fully 72-2y^2

Mathematics
2 answers:
KiRa [710]3 years ago
7 0

Answer: 2(y + 6)(-y + 6)

Step-by-step explanation: Factor 72 - 2y^2

                                             -2y^2 + 72

                                             = 2(y + 6)(-y + 6)

attashe74 [19]3 years ago
6 0

Answer:

-2\left(y+6\right)\left(y-6\right)

Step-by-step explanation:

72-2y^2

-2y^2+72

Factor out GCF.

2(-y^2+36)

Apply difference of two squares formula.

-2\left(y+6\right)\left(y-6\right)

You might be interested in
...........................
Brrunno [24]

Answer:

.. .. .. .. .. .... . ..

Step-by-step explanation:

... .... .. .. ..

8 0
3 years ago
What weight of dry substance is in 50g of a 3% substance solution? What weight of an 8% solution can we have with the same weigh
Gnoma [55]

Answer:

4.5 g 56.25 g Since the only type of measurement mentioned in this question is weight or mass, I'll assume that the percentage concentration is % m/m (mass/mass). For that type of concentration measurement, simply multiple the percentage by the total mass to get the mass of the desired substance. So 150 g * 3% = 150 g * 0.03 = 4.5g For the amount of 8% solution with the same amount of dry substance, there's 2 ways of calculating the mass of solution. First, use the ratio of percentages, multiplied by the mass of the original solution to get the desired amount of new solution: 3/8 * 150 g = 56.35 g Or calculate it from scratch, like 4.5/X = 8/100 450/X = 8 450 = 8X 56.25 = X In both cases, the result is that you desire 56.25 grams of 8% solution.

8 0
3 years ago
What is the equation when y=5x+4 is reflected over the x-axis, y-axis & y=x?
tigry1 [53]

Answer:

A) y=-5x-4

B) y=-5x+4

C) y=\frac{x-4}{5}

Step-by-step explanation:

So we have the equation:

y=5x+4

Let's write this in function notation. Thus:

y=f(x)=5x+4

A)

To flip a function over the x-axis, multiply the function by -1. Thus:

f(x)=5x+4\\-(f(x))=-(5x+4)

Simplify:

-f(x)=-5x-4

B) To flip a function over the y-axis, change the variable x to -x. Thus:

f(x)=5x+4\\f(-x)=5(-x)+4

Simplify:

f(-x)=-5x+4

C) A reflection over the line y=x is synonymous with finding the inverse of the function.

To find the inverse, switch x and f(x) and solve for f(x):

f(x)=5x+4

Switch:

x=5f^{-1}(x)+4

Subtract 4 from both sides:

x-4=5f^{-1}(x)

Divide both sides by 5:

f^{-1}(x)=\frac{x-4}{5}

And we're done :)

7 0
3 years ago
stephens glass holds 40 milliliters of milk.Farrahs glass holds 2/5 as much as milk.how many millilters of milk does Farrahs gla
Zepler [3.9K]
2/5 of 40 milliliters is 16 milliliters.
3 0
3 years ago
Which of the models represents cars as 37 1/2 of the total vehicles?
Aleonysh [2.5K]

Answer:from my understanding it should be D I would wait for someone else to answer just in case I’m wrong.

7 0
3 years ago
Other questions:
  • What is the answer to this problem
    14·2 answers
  • To the nearest tenth of a degree, find the sizes of the acute angles in the 5-12-13 triangle and in the 9-12-15 triangle. This e
    14·1 answer
  • What units would you use to measure the distance from the high school to your house?
    12·1 answer
  • Estimate the sum 10 1/9+ 5 14/15
    10·2 answers
  • Find two fractions with a sum of 2/3 but with neither denominator equal to 3.
    14·1 answer
  • Roy bought running shoes for $44.98. If the sales tax is 7%, how much did he pay in total?
    15·1 answer
  • how can you determine if a relation represented as an equation is a function? explain your reasoning​
    15·1 answer
  • What is 11 x 15? plz help...
    13·2 answers
  • Which of the following does not describe the dependent variable?
    13·2 answers
  • Which two parallelograms have the same area?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!