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
LenKa [72]
3 years ago
9

Please help!! This is for a test!!

Mathematics
1 answer:
masya89 [10]3 years ago
6 0
Cos=(adjacent/hypotenuse)
So the answer will be cos(16/20) or cos(4/5) both will give u the same answer
I hope it helps
You might be interested in
a box of colored pencils contain exactly 6 red pencils. The probability of choosing a red pencil from the box is 2/7. How many o
katrin [286]

Answer:

15

Step-by-step explanation:

You have to find the total number of crayons whcih will be 21.

Then you do 21-6 ( red pencil) to get 15

15 pencil not read.

7 0
3 years ago
Figure ABCDE has vertices a(-3, 3), b(2, 3), c(5, -2), d(0, -3), and e(-3, -2). Plot the points on your own coordinates grid and
Ilya [14]
<h2>Answer:</h2>

Shown below

<h2>Step-by-step explanation:</h2>

First of all, we have the following points:

a(-3, 3) \\ \\ b(2, 3) \\ \\ c(5, -2) \\ \\ d(0, -3) \\ \\ e(-3, -2)

To plot these points, we need to graph a coordinate grid. Recall that a coordinate grid is composed of two perpendicular lines, that we call the axes and are labeled like number lines. The horizontal axis is called the x-axis while the vertical axis is called the y-axis, and these two axes intersect at a point called the origin. Next, let's plot each point as follows:

<h2>PART 1. Plot the points on your own coordinates grid and connect in alphabetical order. </h2><h2></h2>

Point a:

Let's stand at the origin and then move three units to the left and three units up. The resulting point is shown in the firs figure below.

Point b:

Let's stand at the origin and then move two units to the right and three units up. The resulting point is shown in the firs figure below.

Point c:

Let's stand at the origin and then move five units to the right and two units down. The resulting point is shown in the firs figure below.

Point d:

Let's stand at the origin and then move three units to down. The resulting point is shown in the firs figure below.

Point e:

Let's stand at the origin and then move three units to the left and two units down. The resulting point is shown in the firs figure below.

Next, let's connect connect the points in alphabetical order, so that the line are connected from a to b, from b to c, from c to d, from d to e and from e to a again. So the resulting graph is shown in the second figure. As you can see, this is an irregular pentagon.

<h2>PART 2. Decompose figure ABCDE into rectangles and triangles.</h2>

Every pentagon can be divided up into three triangles. Hence, from the third figure. the triangles are:

ΔABE

ΔBDE

ΔBCD

Since a rectangle is a quadrilateral whose angles are all right angles, then there is no chance to obtain a rectangle from ABCDE. To obtain a rectangle, we'd need other points and this is not what the problem asks.

5 0
3 years ago
PLZ SOMEONE ANSWER QUICK, A packing company is in the planning stages of creating a rectangular prism box that includes a three-
Ivan

Answer:

I think it’s 240

Step-by-step explanation:

Hope this helps

6 0
3 years ago
A 90% confidence interval for the mean age, in weeks, at which a baby first crawls was reported to be (32, 46). The margin of er
charle [14.2K]

Answer:

The margin of error for this confidence interval is of 7.

Step-by-step explanation:

Confidence interval concepts:

A confidence interval has two bounds, a lower bound and an upper bound.

A confidence interval is symmetric, which means that the point estimate used is the mid point between these two bounds, that is, the mean of the two bounds.

The margin of error is the subtraction between these bounds, divided by 2.

In this question:

The bounds are 32 and 46.

(46 - 32)/2 = 14/2 = 7

The margin of error for this confidence interval is of 7.

6 0
3 years ago
Please help find the LCD of thisss
Phantasy [73]

Answer:

(x + 2)(x + 2)(2 - x), or (x + 2)^2(2-x)

Step-by-step explanation:

Find the LCD of the following fractions:  

       7                         5

------------------ ,     ---------------

x^2 + 4x + 4            4 - x^2

To do this, factor both denominators, obtaining:

       7                         5

------------------ ,     -----------------

    (x + 2)^2            (2-x)(2+x)

These two denominators have one factor in common:  x + 2.

The LCD is the product of this common factor and each of the non-common factors:

(x + 2)(x + 2)(2 - x), or (x + 2)^2(2-x)

8 0
3 years ago
Other questions:
  • Daca 24 de muncitori termina o lucrare in 4 zile, de cati muncitori este nevoie pentru a termina lucrarea in 3 zile?
    12·2 answers
  • Which are the solutions to the quadratic equation 4x^2=64?
    15·1 answer
  • Calcule o valor da expressão abaixo<br><br> A) (1/3 + 1/2) - (5/6 - 3/4) =
    8·1 answer
  • Which of the following are true about the correlation coefficient? Select all that apply.
    9·1 answer
  • Which expression is w\equivalent to ???<br> HELP PLEASE <br> A<br> B<br> C<br> D
    5·1 answer
  • SOMEONE PLEASE HELP ME! I promise i will mark brainlest, but i need the right answer for this. help is much appreciated &lt;3.
    14·1 answer
  • 3 to the power of 2 + (15 ÷ 5 × 6) − 49
    7·2 answers
  • The cost of a hotel room during Nigel's trip is $180. The hotel room tax in the city he is in is 11.5%. What is the total cost o
    15·1 answer
  • May I please have help from anyone thank you so much !
    7·2 answers
  • The zoo charges the Garcia family an admission fee of $5 per person
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!