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
Alinara [238K]
3 years ago
15

??? Anyone need help

Mathematics
1 answer:
Anestetic [448]3 years ago
3 0

Answer:

6) -3

7) 32

8) -6.5

Step-by-step explanation:

6) -2 -1 = -3 You add because they are both negatives.

7) You multiply both and it becomes a positive because they are both negatives.

8) -13 ÷ 2 = -6.5

You might be interested in
Triangle A B C is shown. Angle B C A is a right angle. The length of hypotenuse A B is 26, the length of A C is 10, and the leng
ExtremeBDS [4]

Answer:

<h2>The right option is twelve-fifths</h2>

Step-by-step explanation:

Given a right angle triangle ABC as shown in the diagram. If ∠BCA = 90°, the hypotenuse AB = 26, AC = 10 and BC = 24.

Using the SOH, CAH, TOA trigonometry identity, SInce we are to find tanA, we will use TOA. According to TOA;

Tan (A) = opp/adj

Taken BC as opposite side since it is facing angle A directly and AC as the adjacent;

tan(A) = BC/AC

tan(A) = 24/10

tan(A) = 12/5

The right option is therefore twelve-fifths

7 0
3 years ago
Read 2 more answers
Use a number line to add and subtract.<br><br> +7 + (-3)=
Karolina [17]

Answer:

4

Step-by-step explanation:

You have positive number and it is bigger that negative so your result will be positive too:

7-3=4

4 0
3 years ago
The sum of three consecutive even numbers is 24 , find the numbers.
Sergeeva-Olga [200]

Answer:

three consecutive even integers whose sum is 24 are 6, 8 and 10.

8 0
3 years ago
Read 2 more answers
Iris has 120 songs on her play list. Each week she downloads 4 song. Write an expression to show the total number of songs on Ir
Leya [2.2K]

Answer:

120 divided by 4 is w

Step-by-step explanation:

8 0
3 years ago
A rancher plans to make 4 identical and adjacent rectangular pens against a barn (see figure below), each with an area of 100 m^
Tasya [4]

Answer:

10 by 10 meters

Step-by-step explanation:

In calculus terms, you can use the formula for the perimeter which is 2l + 2w, and the area l × w.

Then since the area is 100

l × w = 100. So w = 100/l

Then substitute this into the perimeter formula.

w = 100/l → 2l + 2(w) = 2l + 2(100/l) = 2l + 200/l.

Then take the derivative d/dx [take the derivative of a quantity with respect to x], by using a simpler method known as the power rule:

d/dx[x^n] = nx^n-1

so p = 2l + 200/l becomes p' = 2 - 200/l^2

Since the derivative of a constant is 0, to solve for l, set p' to 0

0 = 2 - 200/l^2 → -200/l^2 = -2 → 200/l^2 = 2 → 2l^2 = 200 → l^2 = 100 → l = √100, l = 10.

Now that we know the length is 10, We can substitute the length in the original equation to find the width.

l = 10 → w = 100/l → w = 100/10, w = 10.

Therefore the perimeter of each rectangular pen is 40, with a length of 10 and width of 10.

If you want to do this algebraicly, there are more steps involved

7 0
3 years ago
Other questions:
  • One half hour past midnight
    13·2 answers
  • AB is dilated by a scale factor of 3 to form AB . Point O is the center of dilation, and point O lies on AB . If the slope of AB
    6·1 answer
  • If a data set produces SSR = 400 and SSE = 100, then the coefficient of determination is a. .10. b. .80. c. .25. d. .40.
    12·1 answer
  • Elise fills a waffle cone with ice cream exactly level to the top of the cone. If the cone has a diameter of 2 3/8 inches and a
    8·1 answer
  • Choose the inequality that describes the following problem.
    6·1 answer
  • For the following right triangle, find the side length x, Round your answer to the nearest hundredth.
    5·2 answers
  • if you use synthetic division for this polynomial: 3x^5-12x^4+12x^3+30x^2-39x-42. What would the answer be?
    15·1 answer
  • Identify the correct phrase to complete the statement.
    5·1 answer
  • Need help its due today
    14·1 answer
  • Jamal has 16 marbles. Zing has 9. How many fewer marbles does Zing<br> have than Jamal?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!