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
sergey [27]
3 years ago
15

Solve the quadratic equation y^2-5y=-4 by factoring.

Mathematics
1 answer:
yan [13]3 years ago
8 0
y^2-5y=-4\\
y^2-5y+4=0\\
y^2-y-4y+4=0\\
y(y-1)+4(y-1)=0\\
(y+4)(y-1)=0\\
y=-4 \vee y=1

You might be interested in
Giving fr$e points your welcome! have a good rest of your week​
victus00 [196]

Step-by-step explanation:

Thank you buddy

have a great day ahead

6 0
2 years ago
Read 2 more answers
Least two digit number exactly divisible by 6<br>​
sp2606 [1]

Answer:

2 and 3

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Two cargo ships spot a signal fire on a small island. The captains know they are 140 feet
Irina18 [472]

The distance from Ship B to the signal fire at point C is 405.4 \mathrm{ft}

Explanation:

It is given that two ships A and B are at a distance 140 ft from each other.

The angle formed by ship A is 82º and the angle formed by ship B is 78º.

To determine the distance from ship B to the signal fire at point C, we need to know the another angle.

Hence, we have,

\begin{aligned}\angle A+\angle B+\angle C &=180^{\circ} \\82^{\circ}+78^{\circ}+\angle C &=180^{\circ} \\160^{\circ}+\angle C &=180^{\circ} \\\angle C &=20^{\circ}\end{aligned}

Now, we shall solve the problem using the law of sines,

\frac{\sin A}{a}=\frac{\sin C}{c}

Substituting the values, we have,

\frac{\sin 82^{\circ}}{a}=\frac{\sin 20^{\circ}}{140}

\frac{0.9903}{a}=\frac{0.3420}{140}

Simplifying, we get,

a=\frac{0.9903 \times 140}{0.3420}

a=405.4

Thus, the distance from Ship B to the signal fire at point C is 405.4 \mathrm{ft}

4 0
3 years ago
A board measures 19.5 meters in length is cut into two pieces. One piece measures 7.2 meters. Write and solve an equation to fin
Naddik [55]

Answer:

7.2+x=19.5

x=19.5-7.2

x=12.2

Step-by-step explanation:

4 0
3 years ago
There are 56 customer in a shop.24 of them are men.the rest of the customers are women in the shop
Zina [86]

Answer:

There are 32 women in the shop.

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is 4log1/2^w(2log1/2^u-3log1/2^v written as a single logarithm?
    8·2 answers
  • Use the definition of a Taylor series to find the first four nonzero terms of the series for f(x) centered at the given value of
    15·1 answer
  • What is the f(n) runtime of the following pseudocode: sum = 0 for A = N/2 downto 1 for B = 1 to 4N increment sum by B
    12·1 answer
  • What number is being factored in this factor tree? <br><br>A.72<br> B.180 <br>C.216<br> D.324
    11·1 answer
  • 11/5 divided by 51/4 equals
    12·1 answer
  • Five number have amean of 12,when one number is removed, the mean becomes 11,what is the removed number
    12·1 answer
  • Zak has 3/5 pack of pencils. Of these, 2/7 are blue. How many blue pencils does Zak have?
    12·2 answers
  • Tell whether the two rates form a proportion
    10·2 answers
  • Is 1/8 and 4/32 a proportion?
    9·2 answers
  • Use a calculator to find a decimal approximation for the following trigonometric function sin 28°48
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!