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
lesya [120]
3 years ago
15

7. Find the value of x in the figure below. (8x + 5) (13x - 14) A. 7 D. 10

Mathematics
1 answer:
Lina20 [59]3 years ago
5 0

Answer:

104x^2-47x-70

Step-by-step explanation:

(8x+5)(13x-14)

104x^2+65x-112x-70

104x^2-47x-70

You might be interested in
Pls help I’ll give brainlest
KatRina [158]

the answer is 40 yards. hfjjfnfhcnfnc

5 0
3 years ago
Lita has 12 marbles after she gave to marbles to Emily she has 10/12 of her marbles left what fraction of the marbles did pita g
tigry1 [53]

Answer:

1/6 of the marbles were given away

3 0
3 years ago
Read 2 more answers
Pam needs 3 1/2 cups of sugar to make 50 cupcakes, a 5-pound bag of sugar costs $3.69. There are about 2 cups of sugar in a poun
Alja [10]

Answer:

$1.70

Step-by-step explanation:

3 0
2 years ago
HELP ON THIS PROBLEM!!<br><br> Solve the following 0deg&lt; x&lt; 360deg: cos x= cos 2x
blsea [12.9K]

Answer:

x=0^\circ,120^\circ,240^\circ,360^\circ

Step-by-step explanation:

<u>Use identities to set the equation up as a quadratic</u>

\cos x=\cos 2x;\:0^\circ \leq x \leq 360^\circ\\\\\cos x=2\cos^2 x-1\\\\0=2\cos^2 x-\cos x-1

<u>Make the substitution u=cos(x) and solve the quadratic</u>

<u />0=2u^2-u-1\\\\0=(2u+1)(u-1)

\displaystyle 0=2u+1\\\\0=2\cos x+1\\\\-1=2\cos x\\\\-\frac{1}{2}=\cos x\\\\120^\circ,240^\circ=x

0=u-1\\\\0=\cos x-1\\\\1=\cos x\\\\0^\circ,360^\circ=x

Hence, x=0^\circ,120^\circ,240^\circ,360^\circ

7 0
1 year ago
Simplify 4/8 pls need help
Ganezh [65]
The answer is 1/2 (; do u need any more help?
5 0
2 years ago
Read 2 more answers
Other questions:
  • Which of the following terms are like terms? 4x and 3xy x and x2 2xy and –6xy 3a and 3x
    11·1 answer
  • Walgreens is offered a chain discount on cosmetics from Libby Corp. of 8/5/2; Roma Company offers a chain discount of 7/6/4. Wha
    13·1 answer
  • How many bags of grapes had a weight of 3/8 pounds or less?
    7·1 answer
  • Help me what is the answer ?
    5·2 answers
  • What is the slope form equation?
    14·2 answers
  • Tom has some marbles in two bags. In one bag he has 3 yellow, 2 green and 1 red marble. In the other bag he has 3 yellow, 3 gree
    15·1 answer
  • A carpenter charges $630 for 14 hours of work. She charges the same
    5·1 answer
  • PLEASEEEEEEEEE HELPPPppPPPPPPPPPPP PLSSS
    12·1 answer
  • Find the radius of both circles. Then describe the transformation/s needed to prove circle A
    10·1 answer
  • What is the slope of the line on the graph?​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!