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
NARA [144]
2 years ago
7

Find x. Leave answers in simplified radical form. (Step by step)

Mathematics
2 answers:
____ [38]2 years ago
8 0

Solution:

<u>Step-1: Find the missing angle.</u>

  • 90 + 45 + y = 180
  • => 135 + y = 180
  • => y = 180 - 135
  • => y = 45°

<u>Step-2: Review the following.</u>

  • This triangle is an isosceles right triangle because two angles are equivalent.
  • Two sides of the triangle must equal 4 cm.

<u>Step-3: Use Pythagoras theorem.</u>

  • x² = 4² + 4²
  • => x² = 16 + 16
  • => x = √32 ≈ 5.65 cm (Using calculator)
just olya [345]2 years ago
4 0

Answer:

\sf x  = 4\sqrt{2}

Given:

  • adjacent: 4 cm
  • hypotenuse: x cm
  • angle: 45°

<u>using cosine rule:</u>

\sf cos(x)  = \dfrac{adjacent}{hypotenuse}

\sf cos(45)  = \dfrac{4}{x}

\sf x  = \dfrac{4}{cos(45)}

\sf x  = 4\sqrt{2}

You might be interested in
Which statements about opposites are true?
Sloan [31]

9514 1404 393

Answer:

  A, B, D

Step-by-step explanation:

The "opposite" of a number is that number with its sign changed.

__

  • The opposite of zero is zero.
  • A number and its opposite are located the same distance from zero on a number line.
  • The opposite of a negative number is always a positive number.
7 0
2 years ago
Read 2 more answers
Which is better 9.95 for 30oz of coffee or 3.50 for 12oz of coffee
MaRussiya [10]

Answer:

9.95 for 30oz

Step-by-step explanation:

30/9.95 = 3.02

12/3.5 = 3.43

7 0
2 years ago
What’s is the value of the expression 7+[8-(1+9)]
Amanda [17]

Answer:

5

Step-by-step explanation:

7+(8-(1+9))

7+(8-10)

7+(-2)

7-2

5

4 0
3 years ago
Sorry I suck at math do u get this one
maks197457 [2]

Answer:

Number one will be 11 minutes

Number two will be 525 words

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
When labeling a pre-image and it's image, we use a small tick mark. It's called a(n):
IgorLugansk [536]

Answer:

Prime

Step-by-step explanation:

If we have a point on a pre-image, we can have it labelled as A(x,y)

Now, we can write this as the image

To write this as the image, we simply have to add a mark on the A

This mark is at the upper right

We have it as A’ (x,y)

The part added is called a prime

4 0
3 years ago
Read 2 more answers
Other questions:
  • Math help 20 points and brainliest
    14·1 answer
  • Which of the following below could have created this graph
    15·1 answer
  • Taylin buys 5 ounces of tea leaves for $2.35. At this rate, how much money does
    10·1 answer
  • Paul's bathtub is clogged.he has to empty 30 liters of water by hand. Paul has a 3 liter, a 4 liter, and a 5 liter bucket. If Pa
    15·1 answer
  • The length of a rectangle is 13 centimeters less than six times its width. Its area is
    15·1 answer
  • How can I convert measurements of weight
    5·2 answers
  • Write the equation of a line perpendicular to y=3x-2 through the point (-5,8).
    5·1 answer
  • Find the total area round to the nearest 10th if necessary use the pi symbol on calculator
    5·1 answer
  • YALL SOLVE THIS AND U GET BRAINLIEST.
    7·1 answer
  • Please explain step-by-step. If you don't explain, don't even bother answering.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!