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nordsb [41]
3 years ago
13

Help help help help help help help hepp

Mathematics
2 answers:
Alexandra [31]3 years ago
5 0

Answer:

idk                      

Step-by-step explanation:

Aleksandr [31]3 years ago
4 0
I may be wrong but wouldn’t it’s just be -3x and -15x? x is unknown so there’s not really a way to solve.
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In ΔXYZ, x = 27 cm, y = 79 cm and ∠Z=142°. Find the length of z, to the nearest centimeter.
Annette [7]

The value of side z will be equal to 99.32 cm.

<h3>What is trigonometry?</h3>

The branch of mathematics sets up a relationship between the sides and the angles of the right-angle triangle are termed trigonometry.

Given that:-

In ΔXYZ, x = 27 cm, y = 79 cm and ∠Z=142°

So by applying the formula given below:-

z²   =   x²  +  y²  -  2xyCos(142)

z²   =   79²  +   27²   -  2 ( 79 x 27  x  Cos142  )

z    =    99.32  cm

Hence the value of side z will be equal to 99.32 cm.

To know more about Trigonometry follow

brainly.com/question/24349828

#SPJ1

6 0
2 years ago
A painting without its frame has a width 2.5 times its height, h, in inches. Its frame is 3 in. wide all along its perimeter. Wh
Lena [83]
Answer:

You will not be able to find the area of the framed painting without finding the length, which you did not provide. Assuming you meant “3 inches wide” to actually mean the length then the surface area of the painting is 9 inches squared. However, to find the height, you must divide 3 by 2.5 as the width was said to be 2.5 times the height of the painting. This will give you an answer of 1.2 inches in height.
7 0
3 years ago
Muriel says she has written a system of two linear equations that has an infinite number of solutions. One of the equations of t
Natalka [10]

Answer:

B is correct

Step-by-step explanation: an infinite number of solutions means a coincident line...it is the same line

3y = 2x - 9...divide by 3

y = 2/3x - 3...hmm...same line as answer choice b....they are coincident lines and have infinite solutions

7 0
3 years ago
Read 2 more answers
Please help me with this
aalyn [17]

Answer:

200-225

Step-by-step explanation:

trust me haha

4 0
2 years ago
Which of the following completes Jim's proof? ASA postulate HL postulate SAS postulate SSS postulate
Dmitrij [34]
Given a square ABCD and an equilateral triangle DPC and given a chart with which Jim is using to prove that triangle APD is congruent to triangle BPC.

From the chart, it can be seen that Jim proved that two corresponding sides of both triangles are congruent and that the angle between those two sides for both triangles are also congruent.

Therefore, the justification to complete Jim's proof is "SAS postulate".
7 0
3 years ago
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