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
igomit [66]
3 years ago
12

(3x-8)(x+8) multiply

Mathematics
1 answer:
ohaa [14]3 years ago
7 0
FOIL this out.  3x*x = 3x^2; 3x*8= 24x; -8*x = -8x; -8*8=-64.  Combine like terms to get
You might be interested in
when determining whether proportion are Equal we need to do which of the following? .addition, .multiply straight across, dividi
Lisa [10]

Answer:

Cross Multiplying.

Step-by-step explanation:

By multiplying each ratio by the second number of the other ratio, you can determine if they are equivalent. Multiply both numbers in the first ratio by the second number of the second ratio. For example, if the ratios are 3:5 and 9:15, multiply 3 by 15 and 5 by 15 to get 45:75.

5 0
2 years ago
A mouse climbs up a well of 86 meters. It advances 14 meters during the night, but during the day it retreats 2. The mouse will
Deffense [45]

Step-by-step explanation:

we assume day and night are equally long.

and the mouse will start at night of day 1.

then, on day 2, it will first retreat 2 meters (during daylight) and then advance 14 meters (at night).

so, on every full day, the mouse will effectively advance 12 meters (-2 + 14 = 12).

with a starting value of 14 (the first night).

so, we are getting an arithmetic sequence

an = an-1 + c

c = 12 in our case.

a1 = 14

a2 = a1 + 12 = 14+12 = 26

a3 = a2 + 12 = a1 + 12 + 12 = 14 + 2×12 = 38

an = a1 + (n-1)×12 = 14 + 12(n-1)

at what n will it reach 86 ?

86 = 14 + 12(n-1) = 14 + 12n - 12 = 2 + 12n

84 = 12n

n = 7

so, on the 7th day the mouse will reach the surface (if we truly count the first starting night day 1 - this is up to your teacher, but I would).

7 0
2 years ago
Find x round to the nearest tenth
jeka94
<h3>Answer: angle X = 70.5 degrees</h3>

=================================================

Work Shown:

Law of Cosines

c^2 = a^2 + b^2 - 2ab*cos(C)

22^2 = 20^2 + 18^2 - 2*20*18*cos(X)

484 = 724 - 720*cos(X)

484 + 720*cos(X) = 724

720*cos(X) = 724 - 484

720*cos(X) = 240

cos(X) = 240/720

cos(X) = 1/3

X = arccos(1/3)

X = 70.528779

X = 70.5

Make sure your calculator is in degree mode.

7 0
3 years ago
ABCD=STQR. What is CD?
ololo11 [35]

Answer:

CD = QR because abcd= star then last 2 are answer

8 0
2 years ago
Read 2 more answers
Joe has 70 quarters and dimes. The total value is $14.40. how many quarters does he have
maksim [4K]
14*4=56+1 for the 40 cents = 57 is your Answer
6 0
3 years ago
Other questions:
  • Find each pair of integers, given their sum and product. sum -14, product +24 sum +3, product -18
    15·1 answer
  • I need the answer to this, i don’t understand this .
    7·1 answer
  • Coach Smith went to the sporting goods store to get ready for tennis season. He bought 25 containers of tennis balls and 12 pack
    5·1 answer
  • A triangle has the vertices A(-7, 8), B(1, -7), and C(7,6). After a dilation, the vertices of the image are A(-28, 32).
    11·1 answer
  • I need help. I will give brainliest to a correct answer. The question is the image attached.
    9·2 answers
  • A polynomial with rational coefficients has roots 5 and -6i. (The i is an imaginary number not variable). What is the polynomial
    11·1 answer
  • 198+727 rounding or compatible number
    9·1 answer
  • Solve this polynomial: (22x^2+12x)/(2)​
    7·2 answers
  • Please help me thx so much have a good day
    13·1 answer
  • Earlier in this course, you explored Euclidean geometry, which is the study of flat space. This approach follows the teachings o
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!