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
Nataly_w [17]
3 years ago
12

Use △DEF, shown below, to answer the question that follows: Triangle DEF where angle E is a right angle. DE measures x. DF measu

res 55. Angle D measures 49 degrees. What is the value of x rounded to the nearest hundredth? Type the numeric answer only in the box below.
Mathematics
2 answers:
Hatshy [7]3 years ago
7 0

so is it 36.07 or 36.08

Nonamiya [84]3 years ago
4 0

Answer:

36.08

Step-by-step explanation:

Side DE is the side adjacent to ∠D.  Side DF is the hypotenuse of the triangle.  Adjacent/hypotenuse is the ratio for cosine; this gives us the equation

\cos{49}=\frac{x}{55}

To solve this, multiply both sides by 55:

55\times \cos{49}=\frac{x}{55}\times 55\\\\55\cos{49}=x\\\\36.07=x

You might be interested in
Yes Or No Full Question Is Below Thanks
Dmitry [639]

No this is not a triangle. With these lengths

8 0
3 years ago
Read 2 more answers
Aziza has a triangle with two sides measuring 11 in. and 15 in. She claims that the third side can be any length as long as
vovangra [49]

The 4th one? i think im not sure tho

4 0
3 years ago
Read 2 more answers
Will give BRAINLYIST answer<br><br><br> Which transformations are used to create triangle a ABC
natulia [17]

Answer:

A, dilation by a scale factor of 2 and a reflection across the y-axis

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The price of sneakers reduced $6 per week for 7 weeks. By how much did the price of the sneakers change over 7 weeks?
mylen [45]

Answer:

7(-6)=-42

After 7 weeks the price will be reduced by 7 times $6

Thus the price will be $42

8 0
3 years ago
Help 8th grade math need answers quick
stepladder [879]

Answer:

A few examples:

0. 0

1. Undefined

2. -3/5

3. Undefined

...

7. 493

8. 5/2

....

Learn how to find the slope below for the other problems.

Step-by-step explanation:

Slope is the rate of change for a linear function. It is found by subtracting the y values of two point on the line and dividing that difference by the difference of the x values of the points.

It can also be found using the formula y=mx+b known as the slope intercept form.

Here are a few examples:

0. This is a horizontal line which always has slope 0.

1. This is a vertical line which always has slope undefined.

2. Find two points that cross through a grid line intersection The line appears to cross them at (5,3) and (0,6). Count the unit squares between the two by counting up 3 and over to the left 5. Because it is left it is negative. The slope is -3/5

3. To find the slope, use the slope formula:

\frac{y_2-y_1}{x_2-x_1}=\frac{6--4}{-2--2}=\frac{6+4}{-2+2}=\frac{10}{0}=undefined

Since we can't divide by 0, it is undefined.

7. y=493x-257 follows the formula y=mx+b where m is the slope. m=493. The slope is 493.

8. Covert the equation into y=mx+b by rearranging the terms using y=mx+b.

5x-2y=48

-2y=48-5x

y=5/2 x -24

So the slope is 5/2.

8 0
3 years ago
Other questions:
  • Find the value of x so that the line passing through (-2, 7) and (x, 2) has a slope of -1/3
    7·1 answer
  • The coordinates below represent two linear equations.
    7·1 answer
  • at an end - of - term party , 12 chocolate cakes are shared equally between 40 children. how much does each child get? give your
    6·1 answer
  • I need help with these three questions
    12·1 answer
  • Probability results can be _________.
    5·1 answer
  • What is the range of values of x for a triangle's third side given side measures of 8 and 15 for the other two sides?
    5·2 answers
  • In a survey of 850 students in a school, 90% reported having pets at home. If the margin of error is 3.4%, what is the interval
    11·2 answers
  • Find the commission. Earning Commission Sales Commision Rate is 7% The sales $450 The commission is $
    14·1 answer
  • Solve each system by substitution y=2x-1. 3x+8y=11
    5·2 answers
  • Tom makes a bet with his friend Bob. Bob wagers $100, but Tom decides to make him a deal. If Bob wins, Tom will pay him $100. If
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!