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
Doss [256]
3 years ago
9

Which expression is equivalent to the given expression?

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
6 0

Answer:

-5(y - 3)(y - 7)

Step-by-step explanation:

Factor -5 out of all 3 terms:

-5(y^2 - 10y + 21)

Continue the factoring:

-5(y - 3)(y - 7)

Note:  when answer choices are given, kindly share them.  Thank you.

You might be interested in
What is the slope of the line that passes through (3, −7) and (−1, 1)? (1 point)
ELEN [110]

Answer:

The slope of the line is -2

Step-by-step explanation:

<em>The rule of the slope of a line is</em>:

m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}  , where

(x_{1},y_{1}) and (x_{2},y_{2}) are two points on the line

<em>Let us find the slope using the rule above</em>

∵ The line passes through points (3, -7) and (-1 , 1)

∴ x_{1} = 3 and  x_{2} = -1

∴ y_{1} = -7 and  y_{2} = 1

<em>Substitute these values in the rule above to find m</em>

∴ m=\frac{1--7}{-1-3}=\frac{1+7}{-4}=\frac{8}{-4}=-2

∴ The slope of the line that passes through the given points is -2

8 0
4 years ago
When a number is increased by 84%, the result is 72. What is the original number to the nearest tenth?
sineoko [7]
The original number is 72/1.84=39.1

Explanation: when you increase a number by 84%, you are multiplying it by 1.84
4 0
4 years ago
Read 2 more answers
PLEASE ANSWER THIS
irinina [24]

Answer:

a) 1/4

b) 0.95

Step-by-step explanation:

0.25 is 25/100, which is 1/4

19/25 is 95/100, which is 0.95

3 0
3 years ago
the base of a 15 ft ladder is 12 feet from the base of a building. a 25 foot ladder rests against the building at the same angle
castortr0y [4]

Answer:

The ladder reaches 15ft

Step-by-step explanation:

In the first case we have

cos\theta =\frac{12}{15}

In second case let the height be x

We have

sin\theta =\frac{x}{25}

We know that

cos\theta =\frac{12}{15}\\\\sin\theta =\sqrt{1-\frac{12^{2}}{15^{2}}  } \\\\sin\theta =\sqrt{\frac{81}{225}  } \\\\sin\theta =\frac{9}{15}  }

Substituting

\frac{9}{15} =\frac{x}{25}\\\\x=\frac{25\times9}{15} =15

The ladder reaches 15ft

6 0
2 years ago
The solid below is made from cubes.<br> Find its volume.
iren2701 [21]

Answer:

20

Step-by-step explanation:

Each square is 1 unit,

Width is 2

Height is 2

Length is 5

2x2x5 is 20

6 0
2 years ago
Read 2 more answers
Other questions:
  • Evaluate 7 − (−1). (1 point)
    13·1 answer
  • Factor the polynomial by its greatest common monomial factor 20y^6-15y^4+40y^2
    11·1 answer
  • Jasper wants to buy a video game that costs $35. He has $10.50, and his weekly allowance is $5 if w represents the number of wee
    8·1 answer
  • Solve the system of equations using the substitution method.
    10·2 answers
  • Help on this Question please
    10·1 answer
  • To which rational number subset(s) does the following number belong? 4/13 I. Rational Numbers II. Natural Numbers III. Whole Num
    6·1 answer
  • ? is in the picture asap
    5·2 answers
  • Which shape does NOT have rotational symmetry?<br> A B C D
    11·1 answer
  • Line M passes through the points (-5, 8) and (-1, 9) what is true of line M
    13·1 answer
  • So the laptop costs $2350?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!