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
Elanso [62]
2 years ago
15

Which expression has a solution of 6, if r = 4?

Mathematics
1 answer:
nikitadnepr [17]2 years ago
5 0

Answer:

1.

Step-by-step explanation:

1. 4 + 2 = 6

2. 4 - 4 = 0

3. 10 + 4 = 14

4. 4 - 10 = -6

number 1 is the right answer

You might be interested in
2 sin^2 (x) -5 sin (x) -3=0
andreyandreev [35.5K]

we have that

2sin^{2} x-5sin x-3=0

I. Rewrite the equation by substituting the expression u in for sin x.

2u^{2} -5u-3=0

II. Factor the quadratic expression. Rewrite the equation with factors instead of the original polynomial.

2u^{2} -5u-3=0 is equal to

using a graph calculator-----> see the attached figure

(u-3)*(2u+1)=0

III. Use the zero product property to solve the quadratic equation.

(u-3)*(2u+1)=0

(u-3)=0--------------> u=3

(2u+1)=0-------- 2u=-1------> u=-1/2-----> u=-0.5

IV. Rewrite your solutions to Part III by replacing u with sin x.

sin x=3--------> is not the solution (sin x can not be greater than 1)

sin x=-0.50------>is the solution

V. Solve the remaining equations for x, giving all solutions to the equation.

sin x=-0.50

if the sine is negative

then

x belong to the III or IV quadrant

we know that

sin 30°=0.50

so

the solution for the III quadrant is

x=180°+30°-------> x=210°

the solution for the IV quadrant is

x=360°-30°------> x=330°

5 0
3 years ago
Using distributive property what are two ways to find the product of 127 and 32?
timofeeve [1]
127 = 100 +27
32 = 30 +2
so 127 x 32 = (100 + 27) x (30+2) = (100x30) + (100x2) + (27x30) +(27x2)
= 3000+200+810+54 = 4064

second way:

127 = 100 + 27
127 x 32 = (100+27) x 32 = (100x 32) + ( 27x32) = 3200 + 864 = 4064
6 0
3 years ago
F(t) = 200(0.95)^t<br> What is the rate of change?
Nataly [62]

Answer:

f(t)=-5%

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
What is12.869 x 5.847?.z
kotegsom [21]

Answer:

75.245 or 75.25

Step-by-step explanation:

7 0
3 years ago
14) If Billy walks north 10 miles and then east 5 miles, how far is he from his original starting
Marysya12 [62]
He’s 1.5 away from his original starting
8 0
3 years ago
Other questions:
  • Deductions this Week: Federal Tax $52.02, FICA $33.02, State $5.33. Find the annual Federal Tax deduction
    13·2 answers
  • How do you Simplify 6/3
    14·2 answers
  • At a display booth at an amusement park, every visitor gets a gift bag. Some
    9·1 answer
  • Find the area to this figure
    7·1 answer
  • Can someone please help me on 9 and 10 ty!!
    8·1 answer
  • . You got 46 out of 65 questions right on your exam. What's your grade?
    14·2 answers
  • Brittany and Ashley can paint a room in 7 hours if they work together. If Ashley were to work by himself, it would take him 2 ho
    12·1 answer
  • I need help with the first part I will give brainliest
    11·2 answers
  • 10. At a sale on candles, Lexi bought two large candles and five small candles and paid $30. Carl bought one large candle and th
    14·1 answer
  • Graph the line whose x-intercept is 8 and whose y-intercept is -9.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!