Answer:
x = sqrt(37)/2 - 3/2
approximately 1.54
Step-by-step explanation:
Solve for x over the real numbers:
4 x^2 + 12 x = 28
Divide both sides by 4:
x^2 + 3 x = 7
Add 9/4 to both sides:
x^2 + 3 x + 9/4 = 37/4
Write the left hand side as a square:
(x + 3/2)^2 = 37/4
Take the square root of both sides:
x + 3/2 = sqrt(37)/2 or x + 3/2 = -sqrt(37)/2
Subtract 3/2 from both sides:
x = sqrt(37)/2 - 3/2 or x + 3/2 = -sqrt(37)/2
Subtract 3/2 from both sides:
Answer: |
| x = sqrt(37)/2 - 3/2 or x = -3/2 - sqrt(37)/2
How many faces does this figure have?
O two
O three
O four
O five
Answer:
Five
Step-by-step explanation:
it is a triangular prism so five sides
Give me Brainllest
Someone please help me?!?!
Answer:
30 is correct answer. ... ...........
Find the missing side lengths given the perimeter.
Answer:
Step-by-step explanation:
Perimeter=4y+4y+y+y
25=10y
We divide both sides with 10 => y=2,5
9514 1404 393
Answer:
y = 2.5 ft4y = 10 ftStep-by-step explanation:
The perimeter is the sum of the side length. Each of the sides shown has the same length as its opposite, so the perimeter is ...
P = 2(4y +y) = 10y
Using the given value for perimeter, we find y to be ...
25 ft = 10y
2.5 ft = y
__
Then the longer side is ...
4y = 4(2.5 ft) = 10 ft . . . . length of longer side
Armed gunmen shoot a victim who is 5.9 ft tall, from the roof of a building that is 146 ft away. If the roof of the building was 385 ft high, at what angle to the horizon would the bullet have been fired?
The bullet has been fired at an angle of 69.5° to the horizon. This is a problem based on the application of trigonometry.
Trigonometry is a branch of mathematics that deals with the relationships between the angles and sides of triangles.
Given that
Distance between the building and the man = 146 ft.
Height of the man = 5.9 ft.
Height of the building = 385 ft.
So,
Total height = Height of the man + Height of the building
= 5.9 ft. + 385 ft.
= 390.9 ft.
Let the angle to the horizon would the bullet have been fired be x°.
[tex]tanx^o = \frac{390.9}{146}\\tanx^o = 2.677\\x = tan^{-1}(2.677)\\x = 69.5[/tex]
Thus, the bullet has been at an angle of 69.5°.
Learn more about trigonometry here:
https://brainly.com/question/11016599
#SPJ4
5. Move vertices C and D to different locations.
What is the sum of the angle measures of the quadrilateral?
Answer:360
Step-by-step explanation:
Answer:
it is 360 degrees
Step-by-step explanation:
A right triangle is formed by connecting coordinates (5, -2), (2, -3), and (-1, 6). What is the area of the triangle in square units?
Answer:
the triangle formed from the coords is 3cm by 9cm so try 3 × 9 = 27 then 27 ÷ 2 = 13.5 from the formula a = ½bh?
Step-by-step explanation:
The area of the triangle is equal to 25√2 square units.
What is coordinate geometry?A coordinate plane is a 2D plane that is formed by the intersection of two perpendicular lines known as the x-axis and y-axis. A coordinate system in geometry is a method for determining the positions of the points by using one or more numbers or coordinates.
Given that a right triangle is formed by connecting coordinates (5, -2), (2, -3), and (-1, 6).
The area will be calculated as,
Side = √ [ ( -3 + 2 )² + ( -2 - 5 )² ]
Side = √ ( 1 + 49)
Side = √50
Base = √ [ ( 6 + 3 )² + ( -1-2)² )
Base = √ ( 81 + 9 )
Base = √100
The area will be calculated as,
Area = (1/2) x B x H
Area = (1/2) x √50 x √100
Area = (1/2) x √50 x 10
Area = 5 x √( 25 x 2 )
Area = 25√2 square units
To know more about coordinate geometry follow
https://brainly.com/question/19044159
#SPJ5
The volume of the trapezoidal prism is
Answer:
3612 m^3
Step-by-step explanation:
Find the measure of C for the circle :
Answer:
x = 72
Step-by-step explanation:
∠DBC is an included angle and arc DB is its corresponding arc
Relationship between an included angle and its corresponding arc: an included angle is equal to one half of its corresponding arc
so
∠DBC = [tex]\frac{1}{2}[/tex] arc DB
we are given that arc DB = 144
so we exchange arc db with 144
∠DBC = [tex]\frac{1}{2} 144[/tex]
[tex]\frac{1}{2} 144=72[/tex]
so we can conclude that ∠DBC (x) = 72
NEED HELP ASAP!
Solve for x
Answer:
x = 652.7
Step-by-step explanation:
x = (tan 40° x 500) + (tan 25° x 500) = 419.55 + 233.15 = 652.7
PLZ HELP IF CAN<3 TEST IS DUE AT 3:50!! In America
please help last part to my question it's already late!
Answer:
No, it's not.
Step-by-step explanation:
A right triangle has to have its edges have 90 degrees, and the triangle that they showed does not have that.
The test to determine the presence of a certain virus in a pigeon is 97% accurate for a pigeon that has the virus and 99% accurate for a pigeon that does not have the virus. In a given population, 1.5% of the pigeons are infected.
Do not round your answer.
The probability that a randomly selected pigeon gets an incorrect result is
Before finding the probabilities, we need to find all possible outcomes, and it's probabilities.
Doing this, we get:
The probability that a randomly selected pigeon gets an incorrect result is 0.0103 = 1.03%.
Possible outcomes:
Pigeon has the virus(1.5% probability) and gets an accurate test, showing the presence of the virus(97% probability).
Pigeon has the virus(1.5% probability) and gets an inaccurate test, not showing the presence of the virus(100% - 97% = 3% probability).
Pigeon does not have the virus(100 - 1.5 = 98.5% probability) and gets an accurate test, not showing the presence of the virus(99% probability).
Pigeon does not have the virus(98.5% probability) and gets an innacurate test, showing the virus(100 - 99 = 1% probability).
Probability of incorrect result:
Has the virus and test negative: 0.03 of 0.015
Does not have the virus and test positive: 0.01 of 0.985
Thus:
[tex]p = 0.03\times0.015 + 0.01\times0.985 = 0.0103[/tex]
The probability that a randomly selected pigeon gets an incorrect result is 0.0103 = 1.03%.
For a similar example, you can check https://brainly.com/question/14775123
Which of the following fractions is not in simplest form?
A) 4/15
B) 7/10
C) 9/12
D) 3/4
Answer:C) 9/12
Step-by-step explanation:
b) –3/5x + 5 + x = –7
Pls daje naj
Answer:
x = -30
Step-by-step explanation:
I'm assuming you want us to find the value of x, so:
–3/5x + 5 + x = –7
Subtract 5 from both sides
-3/5x + x = -12
multiply by -1
3/5x - x = 12
add like terms:
-2/5x = 12
multiply by -2.5
x = -30
a shop keeper M sells some goods to N and makes a profitbof 15%.N resells to P at a loss of 5%.If P pays birr 13.11 how much did M pays for the goods?
Answer:
15.83
Step-by-step explanation:
13.11 / 100 = 0.1311
0.1311*5=5%=0.6555
13.11+0.6555=13.7655
13.7655/100=0.137655 * 15 -->15%=2.064528
13.7655+2.064528=15.830325
Answer:
ya the 15 sth like that I think
Find the value of x. Then classify the triangle by its angles.
Answer:
B
Step-by-step explanation:
c
i need help with this plz :)
Answer:
Assuming the wall is flat, X = 50.5
Step-by-step explanation:
180 degrees - 79 degrees = 101
101 / 2 = 50.5
Hope this helps :)
4.364923697 in radical form
Answer:
i hope u can round other wise its this 4 3649237 / 10000000
Step-by-step explanation:
the dash is the fraction symbol
HI HELP THANK YOU LOVE U SM BAES
the answer is b 1/2 <3
NO LINKS I WILL REPORT!! but help plsss What is the value of y?
2yº
y + 10°
50°
Answer:
y=40
I hope it's helps you
Now check the boxes for Show Segment Parallel to AC and Show Segment Parallel to AB. Find the ratio of BF to FC and the ratio of GB to AG. Then find the ratio of IC to BI and the ratio of HC to AH. (If you want to move , select point F, and if you want to move , select point H.) What can you say about the relationship between the pairs of lengths in each case?
Answer:
The ratio of BF to FC is proportional to the ratio of GB to AG. Similarly, the ratio of IC to BI is proportional to the ratio of HC to AH.
Step-by-step explanation:
PLATO ANSWER
PLEASE I need help!!!!
Answer:
a. 40 ft²
b. 21 ft²
c. 61 ft²
Step-by-step explanation:
Rectangle area formula: l * w
Triangle area formula: 1/2(bh)
10 * 4
40 ft² for the rectangle
1/2(7 * 6)
1/2(42)
21 ft² for the triangle
40 + 21
61 ft² in total (both the rectangle & the triangle)
solve for x
I'm not sure of the way I answered it so can anyone help plz
Answer:
x = √76
Step-by-step explanation:
in upper triangle :
7² - 3² =40 so the third side of the upper triangle is : √40
in the biggest triangle :
(3+3)² + 40 = 76 so the another side of the biggest triangle is : √76
Hey guys I need help with this right quick...got some time to help????
Calculate the perimeter of the triangle shown.
Answer:36
Step-by-step explanation:15+5+16=36
IF YOU HELP ILL GIVE YOU BRAINLY PLEASE!!
Answer:
part a:
x lengths = 6
unit lengths = 2
part b:
6x+2
Step-by-step explanation:
You add the like terms, in this case, there are 6 x, so we have 6x, and two 1s, so 1+1= 2, and since 6x and 2 are not like terms, we can't add them, making our answer 6x+2
Answer:
Im past this subject, so this is what I remember. There are six x lengths, and I believe there are 2 NOT 8 unit lengths. For B the answer is 6x+2. Dont worry about the Brainly.
Step-by-step explanation:
What (7 1/3) - (2 2/3) = pls help.
Answer:
4 2/3 is the answer
Step-by-step explanation:
4 2/3 is the answer
Answer:
[tex]4\frac{2}{3}[/tex]
Step-by-step explanation:
Giving brainlist to whoever answers
Answer:
62.4 cm³
Step-by-step explanation:
Hope this helps :)
Combine Rationa25 points do all pls
Answer:
Sorry
Step-by-step explanation:
Sorry
for brainiest:):):):):):):):):)
Answer:
1 is 21 i think
and 2 is 56 i think
Step-by-step explanation:
giimme brainly if right
