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
SCORPION-xisa [38]
2 years ago
10

HELP!

Mathematics
1 answer:
Vesna [10]2 years ago
4 0
A(n)=a+(n-1)d
A(40)= -1+(40-1)-4
A(40)= -1+39(-4)
A(40)= -1+(-156)
A(40)= -157
You might be interested in
A pair of jeans that normally sells for $35 is in sale for 20%. Find the sale price of the jeans. Then find the total cost of th
never [62]
35×.2= 7 dollars is being taken away from the sale.

35-7= 28 dollars which is the new cost.

28×.06=1.68
28+1.68=29.68 final cost of jeans

or you can do 28×1.06= 29.68 final cost of jeans.
7 0
3 years ago
What is the value of -16?<br> A. -4<br> B. -4i<br> C. 4i<br> D. 4;2
hammer [34]

Answer:

B

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
I PROMISE BRAINLIST; 5-STARS; THANKS!! IT'S VERY SIMPLE; BELIEVE ME!!!!!
DochEvi [55]

Answer:

2. B

3. C

4. B

5. D

Step-by-step explanation:

2) The sequence is multiplying by -2 each time. This means that it is geometric.

The next two terms would be:

32*-2=-64\\-64*-2=128\\128*-2=-256

This means that the answer is B

3) The sequence is being multiplied by \frac{1}{3} each time. This means that it is geometric.

The next 3 terms would be:

3*\frac{1}{3} =1 \\\\1*\frac{1}{3} =\frac{1}{3} \\\\\frac{1}{3} *\frac{1}{3} =\frac{1}{9}

I am assuming that the answer is C and that you were unable to type the fractions.

4) We know that the common difference is 1.5, so that is the coefficient of our variable and the starting value is 15. This means that we can write an equation as follows

f(x)=1.5(x-1)+15

Now we can find the first 4 terms

f(1)=15.0\\f(2)=16.5\\f(3)=18.0\\f(4)=19.5

This would mean that the answer is B

5) We know that this is a geometric series, we know the common ratio, and we know the first term. This means we can write the equation as follows

f(x)=4.5(10)^{x-1}

Now we can find the first 4 terms

f(1)=4.5\\f(2)=45\\f(3)=450\\f(4)=4500

Unless you meant that the ratio was \frac{1}{10}, the answer is D, none of the above

7 0
3 years ago
On a road map the distance between two cities is 2.5 in the map scale is 1 inch equals 30 miles what is the actual distance betw
Elenna [48]

Answer:

98

Step-by-step explanation:

duh

8 0
3 years ago
2.5y=5 what is the answer to the equation?
postnew [5]

Answer:2

Step-by-step explanation:

2.5(2)

=5

7 0
2 years ago
Read 2 more answers
Other questions:
  • Write the function that describes a parabola that has a vertex at (3,-4) and goes through the point (5,-12).
    8·1 answer
  • A ceiling fan has
    9·1 answer
  • Someone please help me!
    12·1 answer
  • Write an expression that is equivalent to 6(5x+7y)
    12·2 answers
  • Select the best answer for the question. <br> 15 ÷ 6 2⁄3 =
    11·2 answers
  • The length of a rectangle is 3 times its width. Write and evaluate an expression for the length of the rectangle.
    9·1 answer
  • What is the volume of a cylindrical bucket that is 35 cm tall and has a base with a diameter of 21 cm?
    10·1 answer
  • For what value of b will f(x)= x^2 + bx + 900 have -30 as its only zero? PLEASE HELP!!
    10·1 answer
  • What is the simplified square root of -20?
    11·1 answer
  • Given the function <br> g(x) = 2x + 4 find 9(2), 9(4), and g(10)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!