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
Firdavs [7]
4 years ago
8

Which answer describes the pattern in this sequence? −7, −11, −15, −19, ...

Mathematics
1 answer:
Gekata [30.6K]4 years ago
3 0
The answer is option 2, it subtracts by four each time.
You might be interested in
!! Help Quick Please!! ​
Finger [1]

Answer:

The answer is definitelly B.(Area of 1) + (Area of 2) = (Area of 3)

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Gabby has a bag containing 36 nickels and quarters. The total value of the coins is $5. How many quarters does gabby have?
olganol [36]

There are 20 nickels and 16 quarters

<em><u>Solution:</u></em>

Let "n" be the number of nickels

Let "q" be the number of quarters

We know that,

1 nickel = 0.05 dollar

1 quarter = 0.25 dollar

<em><u>Gabby has a bag containing 36 nickels and quarters</u></em>

Therefore,

n + q = 36

n = 36 - q ------- eqn 1

<em><u>The total value of the coins is $5</u></em>

<em><u>Thus we frame a equation as:</u></em>

number of nickels x 1 nickel + number of quarters x 1 quarter = 5

n \times 0.05 + q \times 0.25 = 5

0.05n + 0.25q = 5 ------- eqn 2

<em><u>Substitute eqn 1 in eqn 2</u></em>

0.05(36 - q) + 0.25q = 5

1.8 - 0.05q + 0.25q = 5

0.2q = 3.2

q = 16

<em><u>Substitute q = 16 in eqn 1</u></em>

n = 36 - 16

n = 20

Thus there are 20 nickels and 16 quarters

8 0
3 years ago
Architect Brian Peters spent 60% of a week's time working on drawings for a new apartment building. If Brian spent 18 hours work
Kipish [7]

Answer:

Brian Peters worked for total of 45 hours.

Step-by-step explanation:

Let the total number of hours worked be 'x'.

Now Given:

Hours spent on other projects = 18 hours.

Also Given:

60% of a week's time working on drawings for a new apartment building.

Hours spent on new apartment building = 60\%\times x = \frac{60}{100}x=0.6x

We need to find the total hours worked.

Solution:

Now we can say that;

total number of hours worked is equal to sum of Hours spent on new apartment building and Hours spent on other projects.

framing in equation form we get;

x=0.6x+18

Combining like terms we get;

x-0.6x=18\\\\x(1-0.6)=18\\\\0.4x=18

Now Dividing both side by 0.4 we get;

\frac{0.4x}{0.4}=\frac{18}{0.4}\\\\x=45\ hrs

Hence Brian Peters worked for total of 45 hours.

7 0
3 years ago
If sin = 3/5 and 0 &lt;= x &lt;= pi/2 , find the exact value of tan 2θ.
Alexxandr [17]

For starters,

tan(2θ) = sin(2θ) / cos(2θ)

and we can expand the sine and cosine using the double angle formulas,

sin(2θ) = 2 sin(θ) cos(θ)

cos(2θ) = 1 - 2sin^2(θ)

To find sin(2θ), use the Pythagorean identity to compute cos(θ). With θ between 0 and π/2, we know cos(θ) > 0, so

cos^2(θ) + sin^2(θ) = 1

==>  cos(θ) = √(1 - sin^2(θ)) = 4/5

We already know sin(θ), so we can plug everything in:

sin(2θ) = 2 * 3/5 * 4/5 = 24/25

cos(2θ) = 1 - 2 * (3/5)^2 = 7/25

==>  tan(2θ) = (24/25) / (7/25) = 24/7

6 0
4 years ago
Find the nonpermissible replacement for x in<br> this expression.<br> X-4/X-8
vitfil [10]

Answer:

8.

Step-by-step explanation:

x cannot be 8 because that would make the denominator zero.

8 0
4 years ago
Other questions:
  • I need help with this problem !
    5·2 answers
  • Maria so 20 shares of stock for a total of 2980 what was the value of one
    13·1 answer
  • Helpppp!! This is a easy question just not sure what’s to do lol
    14·1 answer
  • Reuben attached a wire between two poles on a hill as shown which is the closest to x the distance between the two poles
    14·1 answer
  • (5 - 3i) + (6 + 5i)
    9·2 answers
  • PQRS is a rectangle with a length of 10 inches and a width of 4 inches. What is the measurement of angle A, the angle formed by
    6·2 answers
  • 4√3 + √3 = [coefficient]√3
    10·2 answers
  • The table below represents the velocity of a car as a function of time:
    9·1 answer
  • A blue circular target is tacked onto a square corkboard. The area of the target is 75 square units. What is the area of the cor
    14·1 answer
  • How many sugar should farid use for 1/2 of a batch of muffins?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!