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
anzhelika [568]
2 years ago
6

Math need help asap ty po sa makaka sagot

Mathematics
1 answer:
Hatshy [7]2 years ago
4 0
<h2>Answer:</h2>

please see analysis

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

\left\{\right.{ \triangle}\ RST\cong { \triangle}\ DEF

(SSS\ Congruence\ Postulate)

2.\ { \triangle\ CAT\cong { \triangle\ BED\ \left\{\right.Given\left.\ \right\}

\bar{AT}\cong\bar{ED}

\overline{AT}=20

so\ \overline{ED}=20

DE=3x-7=20\rightarrow\ x=9

<em>I hope this helps you:)</em>

You might be interested in
What is the answer?? Only if you know please i will report
cupoosta [38]

Answer:

I'll be back

Step-by-step explanation:

I'm gonna go get pen and paper to work this out for you

Don't report, I'll say the answer in the comments

8 0
2 years ago
Read 2 more answers
Find the absolute maximum and absolute minimum values of the function f(x, y) = x 2 + y 2 − x 2 y + 7 on the set d = {(x, y) : |
dsp73

Looks like f(x,y)=x^2+y^2-x^2y+7.

f_x=2x-2xy=0\implies2x(1-y)=0\implies x=0\text{ or }y=1

f_y=2y-x^2=0\implies2y=x^2

  • If x=0, then y=0 - critical point at (0, 0).
  • If y=1, then x=\pm\sqrt2 - two critical points at (-\sqrt2,1) and (\sqrt2,1)

The latter two critical points occur outside of D since |\pm\sqrt2|>1 so we ignore those points.

The Hessian matrix for this function is

H(x,y)=\begin{bmatrix}f_{xx}&f_{xy}\\f_{yx}&f_{yy}\end{bmatrix}=\begin{bmatrix}2-2y&-2x\\-2x&2\end{bmatrix}

The value of its determinant at (0, 0) is \det H(0,0)=4>0, which means a minimum occurs at the point, and we have f(0,0)=7.

Now consider each boundary:

  • If x=1, then

f(1,y)=8-y+y^2=\left(y-\dfrac12\right)^2+\dfrac{31}4

which has 3 extreme values over the interval -1\le y\le1 of 31/4 = 7.75 at the point (1, 1/2); 8 at (1, 1); and 10 at (1, -1).

  • If x=-1, then

f(-1,y)=8-y+y^2

and we get the same extrema as in the previous case: 8 at (-1, 1), and 10 at (-1, -1).

  • If y=1, then

f(x,1)=8

which doesn't tell us about anything we don't already know (namely that 8 is an extreme value).

  • If y=-1, then

f(x,-1)=2x^2+8

which has 3 extreme values, but the previous cases already include them.

Hence f(x,y) has absolute maxima of 10 at the points (1, -1) and (-1, -1) and an absolute minimum of 0 at (0, 0).

3 0
3 years ago
Plz help me by answering these circled questions<br>in steps plz
igor_vitrenko [27]

a- is -28 and i’m working out the rest for you now

3 0
3 years ago
Translate the following word phrase into nine times the difference of 5 and y
emmasim [6.3K]
Answer: 9 * (5 - y)

Explanation:

Times: multiplication

Difference: subtraction

y: the unknown variable
4 0
3 years ago
Which value must be added to the expression x^2 +16x to make it perfect-square trinomial?
Semmy [17]
X^2 + 16x + ?
a^2 + 2ab + b
(a + b)^2 which is a perfect square.

To find b to determine the last value, you divide 16x by 2x.
so:
b = 8
the last value would be 8^2 which is 64.

Hence answer is C - 64
5 0
3 years ago
Read 2 more answers
Other questions:
  • A piece of steel pipe 12.5 feet long weighs 158 pounds. How much does a piece of the same steel pipe 18.75 feet long weigh?
    9·2 answers
  • Find the slope of the line that passes through each pair of points.C(-1,2),d(-5,2)
    11·1 answer
  • a store is offering a 20% discount off one item. you also have a coupon for 5$ off one item. Which composite function repressent
    14·1 answer
  • There are 30 seventh-grade students and
    11·1 answer
  • 3. Use your knowledge of inverse functions to complete the flowchart. Then explain how
    13·1 answer
  • Kite ABCD is reflected over the line y = x. What rule shows the input and output of the reflection, and what is the new coordina
    9·2 answers
  • E the location for each of the following staring points andlocation changes6. (5.3), 67- 8.5.3
    12·1 answer
  • Plz help anybody my grade is a D and i need it up to a C so i can get my b day present
    5·2 answers
  • A bag contains 12 blue marbles 5 red marbles and 3
    14·1 answer
  • James uses 1 1/2 cups of milk and 2 1/4 cups of flour for his favorite cookie recipe. This makes 60 cookies. How much milk and f
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!