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
Otrada [13]
3 years ago
13

How would I figure this out?? pls explain.

Mathematics
1 answer:
NeX [460]3 years ago
8 0

Answer:

D

Step-by-step explanation:

The diagonals of a rhombus bisect the angles, thus

∠ ABC = ∠ CBD = 5x - 18 and

∠ BAC = ∠ DAC = x

The diagonals are perpendicular bisectors of each other, thus

the angles round the intersection of the diagonals = 90°

Consider the triangle on the left of the rhombus, then

5x - 18 + x + 90 = 180 ( sum of angles in a triangle )

6x + 72 = 180 ( subtract 72 from both sides )

6x = 108 ( divide both sides by 6 )

x = 18 → D

You might be interested in
In the figure below, angle y and angle x form vertical angles. Angle y forms a straight line with the 60° angle and the 70° angl
Lynna [10]
The answer is 50 I believe
4 0
3 years ago
Serena bought a total of 135 notebooks and pencils for her students. Each notebook cost $1.75, and each pencil cost $0.35. The t
notsponge [240]

Answer:

81 pencils is the answer

8 0
3 years ago
Which of the following ratios is not equivalent to the other three 2/3 4to6 8to12 4/5
balu736 [363]

Answer:

The non-equivalent ratio is 4:5.

Step-by-step explanation:

2/3 4/6 and 8/12 are equivalent because they are all multiples of each other.

7 0
3 years ago
Find the volume of the given shape. Round your answer to the nearest<br> hundredth if necessary.*
hjlf

Answer:

Step-by-step explanation:

It is a sphere with radius r = 5 cm

volume = (4/3)πr³

  = (4/3)π(5³)

  ≅ 523.60 cm³

6 0
3 years ago
The line that is the perpendicular bisector of the segment whose endpoints are R(-1, 6) and S(5, 5)
velikii [3]
I think what you are looking for is to indicate an ecuation for this. So lets do the procedure: 
First you need to find the slope of this line. 
<span>(5 - 6)/(5 + 1) = -1/6 </span>
<span>So, The slope of the perpendicular line is the opposite reciprocal, which is </span>
<span>+6/1.</span><span>Now we know the slope of the line but still have to find the mid point of the line. </span>
That is why we are going to <span>use the mid point equation </span>
<span>x = (-1 + 5)/2 = 2 </span>
<span>y = (6 + 5)/2 = 11/2 </span><span> </span>
<span>(y - 11/2) = 6(x - 2) </span>
<span>The last thing you do is rearrange the equation to get y = 6x - 6.5
Hope this is what you were looking for </span>
8 0
4 years ago
Read 2 more answers
Other questions:
  • I need help with this question
    15·1 answer
  • Which of the following sets of intergers is a pythagorean triple
    10·1 answer
  • What is 75 equals 6 multiplied by w
    14·2 answers
  • Write an equation of the line that passes through (-3,3) and is perpendicular to the line 2y=8x-6
    6·1 answer
  • Lucas is riding his bike to the park which is 2 kilometersfrom his house. When he is one-fourth of the way tothe park, it starts
    8·1 answer
  • State the equation of the line which has the y-intercept :
    10·1 answer
  • A sample size must be determined for estimating a population mean given that the confidence level is ​% and the desired margin o
    15·1 answer
  • F(x)=x²-3 tell whether the function is quadratic or not?​
    5·1 answer
  • You and a friend are playing a game by tossing two coins. If both coins land on heads,
    12·2 answers
  • The following graph shows a proportional relationship.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!