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
likoan [24]
3 years ago
15

X^2 -25 =0. Factor and use the zero product property to solve.

Mathematics
2 answers:
Gwar [14]3 years ago
7 0
X^2 - 25 is a difference of squares which has a special factorization.

In general, a^2 - b^2 = (a + b)(a - b)

x^2 - 25 = 0

(x + 5)(x - 5) = 0

x + 5 = 0  or   x - 5 = 0

x = -5   or   x = 5
galina1969 [7]3 years ago
7 0
Ax^2 + bx + c = 0

a = 1, b = 0, c = -25

Quadratic formula:
x = {-b +/- sqrt(b^2 - 4ac)} / 2a

x = {0 +/- sqrt(0 - 4(1)(-25))} / 2(1)

x = +/- sqrt(100) / 2

x = +/- 10/2

x = +/- 5

Factored: (x - 5)(x + 5)
Solutions: 5 and -5
You might be interested in
The cost for 25 square yards of carpet is $650 including delivery and installation. The cost for 40 square yards of installed ca
RUDIKE [14]
I need the answers lol
4 0
3 years ago
What is the surface area of the figure shown? Plz answer asap
Luba_88 [7]

Answer:

264\ cm^{2}

Step-by-step explanation:

we know that

The surface area of the figure is equal to the lateral face of the triangular pyramid plus the lateral face of the rectangular prism plus the area of the base of the rectangular prism

step 1

Find the lateral face of the triangular prism

The lateral area is equal to the area of its four lateral triangular faces

LA=4(\frac{1}{2}(6)(7))=84\ cm^{2}

step 2

Find the lateral area of the rectangular prism

The lateral area is equal to the perimeter of the base multiplied by the height

LA=(4)(6)(6)=144\ cm^{2}

step 3

Find the area of the base of the rectangular prism

B=(6)(6)=36\ cm^{2}

step 4

Find the surface area

84\ cm^{2}+144\ cm^{2}+36\ cm^{2}=264\ cm^{2}

3 0
3 years ago
What is 4 divide 120<br> Show me that<br> divide by 120
Lena [83]

Answer: 120 divided by 4 = 30

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Ricardo has a square hot tub. He wants to build a square pool next to it that is a dilation of the hot tub using a scale factor
ozzi

Answer:

\boxed{Side \ Length \ of \ hot \ tub = 4.8\ ft.}

Step-by-step explanation:

Scale Factor = 5

Also,

B'C' = 24 feet

Since both are squares so both have all sides equal.

Sqaure A'B'C'D' is dilated by a scale factor of 5

So,

AB = BC = CD = DA = 24/5 = 4.8 ft.

4 0
3 years ago
I still nee help with this q9
katen-ka-za [31]

Answer:

it is A

D"" (7,2)

6 0
2 years ago
Other questions:
  • What is the midpoint of a line segment with the ends 8,-3 and -5,-9
    9·1 answer
  • Given A (-3,5) and B (6,7) find AB
    8·1 answer
  • What is the answer to: 110% of 20?
    10·2 answers
  • Here another one Thanks
    10·1 answer
  • 11 + (3)(9) Step 1: 11 + (9)(3) Step 2: (11 + 9)(3) Step 3: 20(3) Step 4: 60 Analyze the work to find the error.
    8·2 answers
  • Which graph represents f(x)=x^2-3
    11·1 answer
  • Question and Answers below in photo!! Please answer! Will mark BRAINLIEST! ⬇⬇⬇⬇⬇⬇⬇
    13·1 answer
  • Correct answer gets brainliest
    8·2 answers
  • Can someone help me ?
    11·2 answers
  • WILL MARK BRAINLIEST . PLEASE HELP . Pigeons can fly at a rate of 168ft every 6 minutes, and ravens can fly at a rate of 472ft e
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!