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
Pani-rosa [81]
3 years ago
13

Choose the correct answer from the given four options: In an AP, if d = –4, n = 7, an = 4, then a is *

Mathematics
1 answer:
BabaBlast [244]3 years ago
7 0

a = 28.

Step-by-step explanation:

{a}n = a  + (n - 1)d

4 = a + (7 - 1)( - 4)

4 = a + 6( - 4)

4 = a + ( - 24)

4 = a - 24

4 + 24 = a

28 = a

(OR)

a = 28.

You might be interested in
Help pls need answer
blagie [28]

Answer:

a

Step-by-step explanation:

idk

4 0
3 years ago
Which of the following vectors are orthogonal to (-1,3)? Check all that apply.
Aliun [14]
First vector orthogonal<span> to ⟨−</span>3<span>,4</span>
7 0
4 years ago
Given the following triangle, if a = 12 and ∠B = 48°, find b to the nearest whole number.
Keith_Richards [23]
In the figure, the triangle ABC is a right triangle, a is the adjacent leg to the angle B, and b is the opposite side to the same angle.

So, you can use the tangent ratio which relates the angle, the opposite leg and the adjacent leg:

tangent (angle B) = b / a => b = a * tan(B)

=> b = 12 * tan(48°) = 13.33≈ 13

Answer: 13


5 0
3 years ago
Read 2 more answers
Which graph represents the solution set of the system of inequalities?<br> y &lt; 2/3x<br> Y&gt;-x+2
Marysya12 [62]

Answer:

I attached it.

Step-by-step explanation:

This is the graph.

5 0
4 years ago
Find the value of a2 + b when a = -2 and b = 5
REY [17]

Answer: 9

Step-by-step explanation: In this problem, we're going to evaluate a² + b knowing that <em>a</em> = -2 and <em>b</em> = 5.

So the first thing we want to do is substitute these numbers into our problem.

Since <em>a</em> = -2, we will replace <em>a</em> with a -2 and as we do that, we will put that -2 in parentheses and square it since we have a². Squaring a number just means multiplying a number by itself so (-2)² is equal to 4 since a negative multiplied by a negative gives us a positive.

Now we will replace <em>b</em> with 5 and now we have the following.

4 + 5 simplifies to 9.

4 0
3 years ago
Other questions:
  • Mary needs 45 craft sticks to build a model for her science project. If the craft sticks cost 10 cents each, how much will 45 cr
    7·1 answer
  • What is the number of ways to arrange 6 objects from a set of 10 different objects? A. 520. B. 78,400. C. 210. D. 151,200
    12·1 answer
  • Find the distance from the base of the ladder to the house.
    11·1 answer
  • Can someone please help me?
    14·1 answer
  • Please help. 20 points and brainliest.
    10·1 answer
  • PLEASE HELP!!!!!
    6·1 answer
  • The average rate of change of g(x) between x = 4 and x = 7 is 7. Which statement must be true? ​
    8·1 answer
  • Find the value of given expression<br><br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B25%20%5Ctimes%205%20-%202%20%7B%7D%5E%7
    13·1 answer
  • Which of the following can be used to appropriately measure the weight of a car<br>​
    6·1 answer
  • PLS HELP ASAP WILL GIVE BRAINLIEST AND 100 POINTS
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!