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
Alisiya [41]
3 years ago
10

ASAP MAJOR HELP NEEDED. I really need help. I am very confused on how to do this please help.

Mathematics
2 answers:
alexandr402 [8]3 years ago
6 0

Because the 2 sides of the triangle are the same, they are both 21, the two bottom angles would also be the same.


The 3 inside angles of a triangle must equal 180 degrees.


The top angle is given as 38, so the remaining two angles must equal 180 - 38 = 142 degrees.


Since the 2 bottom angles would be the same, divide 142 by 2 to get x.

X = 142 / 2 = 71 degrees.


MA_775_DIABLO [31]3 years ago
6 0

Answer:

X=71

Step-by-step explanation:


You might be interested in
Which equation is y = (x 3)2 (x 4)2 rewritten in vertex form? y = 2 (x seven-halves) squared minus one-fourth y = 2 (x seven-hal
Mkey [24]

The equation when rewritten is y=2(x-1/2)^2- 27/2

<h3>Calculations and Parameters:</h3>

When we consider the vertex form of the equation:

y= 3(x-2)^2 - (x-5)^2

Expanding further:

2((x-0.5)^2 - 27/4) = 2( (x-0.5)^2)- 27/2

Thus, the final form of the equation would be y=2(x-1/2)^2- 27/2

Read more about equations here:

brainly.com/question/17109781

#SPJ4

5 0
1 year ago
<img src="https://tex.z-dn.net/?f=%5Csqrt%7B%28-81%29x%5E%7B2%7D%20%7D" id="TexFormula1" title="\sqrt{(-81)x^{2} }" alt="\sqrt{(
SSSSS [86.1K]

Answer:

We conclude that:

\sqrt{\left(-81\right)x^2}=9ix

Step-by-step explanation:

Given the radical expression

\sqrt{\left(-81\right)x^2}

simplifying the expression

\sqrt{\left(-81\right)x^2}

Remove parentheses:  (-a) = -a

\sqrt{\left(-81\right)x^2}=\sqrt{-81x^2}

Apply radical rule:   \sqrt{-a}=\sqrt{-1}\sqrt{a},\:\quad \mathrm{\:assuming\:}a\ge 0

                 =\sqrt{-1}\sqrt{81x^2}

Apply imaginary number rule:  \sqrt{-1}=i

                 =i\sqrt{81x^2}

Apply radical rule:   \sqrt[n]{ab}=\sqrt[n]{a}\sqrt[n]{b},\:\quad \mathrm{\:assuming\:}a\ge 0,\:b\ge 0

                  =\sqrt{81}i\sqrt{x^2}

                  =9i\sqrt{x^2}

Apply radical rule:  \sqrt[n]{a^n}=a,\:\quad \mathrm{\:assuming\:}a\ge 0

                  =9ix

Therefore, we conclude that:

\sqrt{\left(-81\right)x^2}=9ix

7 0
3 years ago
15. Rewrite the given functions in
Lisa [10]

15. The vertex form of f(x) = x² + 8x - 10 is f(x) = (x + 4)² - 26

17. The standard form of g(x) = (x + 3)² - 4 is g(x) = x² + 6x + 5

Step-by-step explanation:

Any quadratic function has:

1. A vertex form form f(x) = a(x - h)² + k, where (h , k) are the

   coordinates of its vertex point

2. A standard form g(x) = ax² + bx + c, where a , b , c are constant and

   a is the coefficient of x², b is the coefficient of x and c is the

    y-intercept

3. the x-coordinate of the vertex point h = \frac{-b}{2a} and

    k = f(h)

15.

∵ f(x) = x² + 8x - 10

∴ a = 1 and b = 8

∵ h = \frac{-b}{2a}

∴ h = \frac{-8}{2(1)}=-4

∴ h = -4

∵ k = f(h)

∴ k = f(-4)

- Substitute x by -4 in f(x)

∴ k = (-4)² + 8(-4) - 10

∴ k = 16 - 32 - 10

∴ k = -26

∴ f(x) = (x - -4)² + (-26)

∴ f(x) = (x + 4)² - 26

The vertex form of f(x) = x² + 8x - 10 is f(x) = (x + 4)² - 26

17.

∵ g(x) = (x + 3)² - 4

- Lets solve the power 2 of the bracket:

 (1st + 2nd)² = (1st)(1st) + 2(1st)(2nd) + (2nd)(2nd)

∵ (x + 3)² = (x)(x) + 2(x)(3) + (3)(3)

∴ (x + 3)² = x² + 6x + 9

∴ (x + 3)² - 4 = (x² + 6x + 9) - 4

∵ 9 - 4 = 5

∴ (x + 3)² - 4 = x² + 6x + 5

The standard form of g(x) = (x + 3)² - 4 is g(x) = x² + 6x + 5

Learn more:

You can learn more about the vertex form of quadratic function in brainly.com/question/9390381

#LearnwithBrainly

4 0
3 years ago
Which of the following is equivalent to 1/3(6x-12y) ?
harkovskaia [24]
1/3(6x-12y)
2x - 4y

the answer is A
5 0
3 years ago
The graph of F(x) can be flipped over a certain line to produce the graph of its inverse. What is the equation of that line?
OlgaM077 [116]
<span><u><em>The correct answer is: </em></u>
y=x.

<u><em>Explanation: </em></u>
<span>In order to find the inverse of a function, we first <u>switch x and y</u>; then we isolate y. When we do this, we are saying that x and y equal the same thing, or y=x.  </span></span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • A Percent of 2% into a fraction and a decimal?
    8·2 answers
  • you have recently taken a loan out in the amount of $210,000 for a new home. you place 10% down and finance the remaining balanc
    12·2 answers
  • What is the range of f(x) = -x2 + 4, if the domain is {2,0,1}?
    14·1 answer
  • 11, 16, 12, 7, 23, 9, 5, 5 What is the median of the data?
    8·2 answers
  • A bus travels 32 kilometers in 30 minutes. How far will the bus travel in 4 hours at that speed?
    15·2 answers
  • Y = x + 12<br> solve for x
    13·1 answer
  • Set X = {x|x is a whole number less than or equal to 10} and set Y = {/15, 10, 15, 20}
    14·1 answer
  • Reciprocal of a number<br> 2/9......-7/6......8/3
    9·1 answer
  • Explain how to use the Zero-Product Property to find the solution of the equation 3x(x – 6) = 0.
    12·1 answer
  • A music store owner noted that cd sales had dropped 23% from one quarter to the next. if the owner sold 715 units in the first q
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!