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jenyasd209 [6]
2 years ago
13

Could someone explain number 18?

Mathematics
2 answers:
lora16 [44]2 years ago
6 0
It is going to be X= -19
Stolb23 [73]2 years ago
4 0
The process and answer are in the picture. If you’re satisfied, could you please give me a brilliant answer! :)

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What triangle is formed with the angles 32 126 and 32
Marina86 [1]
An obtuse triangle would be formed. If you add all the angles, you get a total of more then 180 causing it to b obtuse.
7 0
2 years ago
What is the measure of angle x?<br><br> Enter your answer in the box.<br> x = °
Lorico [155]
90-47=
43°
x is equal to the space between the y axis and the line
4 0
3 years ago
Read 2 more answers
In a certain neighborhood, there's a sagging power line between two utility poles. The utility poles are 50 feet tall and 120 fe
e-lub [12.9K]
<h3>Answer:  33.75 feet</h3>

In fraction form, this value is equal to 135/4

33.75 ft is equivalent to 33 ft, 9 inches.

===============================================

Explanation:

Refer to the diagram below.

The key point to start with is point H, which is the vertex of the parabola.

Recall that vertex form is

y = a(x-h)^2 + k

What we'll do is plug in the vertex (h,k) = (60,30) which is the location of point H. We'll also plug in (0,45) which is the y intercept, aka the location of point C.

So,

y = a(x-h)^2 + k

y = a(x-60)^2 + 30 .... plug in vertex

45 = a(0-60)^2 + 30 .... plug in y intercept coordinates

45 = a(-60)^2 + 30

45 = a(3600) + 30

45 = 3600a + 30

45-30 = 3600a

3600a = 15

a = 15/3600

a = 1/240

This then means:

y = a(x-h)^2 + k

y = (1/240)(x-60)^2 + 30

This is the equation of our parabola. Plug in x = 30 to determine the height of point K

y = (1/240)(x-60)^2 + 30

y = (1/240)(30-60)^2 + 30

y = (1/240)(-30)^2 + 30

y = (1/240)(900) + 30

y = 15/4 + 30

y = 15/4 + 120/4

y = 135/4

y = 33.75

Therefore, the height of the power line, when it is 30 feet away from one of the poles, is 33.75 feet. This is the y coordinate of point K.

Side note: 33.75 ft = 33 ft + 0.75 ft = 33 ft + 12*0.75 in = 33 ft + 9 inches

8 0
2 years ago
Sonya took out a mortgage of $65,000 at 7% for 25 years. What is the cost of the mortgage?
Vika [28.1K]

The cost of the mortgage is $81250

<h3>What are interests?</h3>


Interests are percentages of a principal

Given the following parameters

Principal = $65000

Rate = 7% = 0.07
Time = 5 years

<h3>Calculate the interest</h3>

I = PRT/100
I = 65000*0.07*25
I = 16,250

<h3>Determine the cost of the mortgage</h3>

Cost of mortgage = Principal + Interest

Cost of mortgage = 65000 + 16250
Cost of mortgage = 81,250

Hence the cost of the mortgage is $81250

Learn more on mortgage here: brainly.com/question/22846480

5 0
2 years ago
Read 2 more answers
WORTH 50 POINTS
Rufina [12.5K]

1) B irrational  

2) B sometimes because a negative integer is not a whole number

3) C irrationals

4) C and D are whole numbers

5) C irrational

6) D 7/10 because a rational number is always a faction

7) C rational numbers

8) D real and rational

9) D rational, real, whole number

10) A integers

7 0
3 years ago
Read 2 more answers
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