Geometry
A right triangle adds up to 180°.
Make an equation to find x.
54°+x°+90°=180°
Add like-terms.
144°+x°=180°
Subtract 144 from both sides.
x°=36
Please help!!!!!!! 50 points!!!!!
The figure is made up of a cylinder and 2 cones. What is the volume of the composite figure? Use 3.14 for Pi. Round to the nearest hundredth.
A cylinder and 2 cones. All have a radius of 2 millimeters. The cones have heights of 4 millimeters and 2 millimeters, and the cylinder has a height of 5 millimeters.
Recall the formulas V = B h and V = one-third B h
millimeters cubed
Answer:
96.29 mm^3
Step-by-step explanation:
Cylinder
V = pi r^2 h
V = 3.14 ( 2)^2 ( 5)
V = 3.14 *4*5
V =62.8 mm^3
Cone
V = 1/3 pi r^2 h
V = 1/3 (3.14) 2^2 ( 4)
V =1/3 (3.14) 4*4
V =16.746666666 mm^3
There are 2 cones so multiply by 2
Both cones = 33.493333333333 mm ^3
Add the cones and the cylinder together
62.8+33.493333333 =96.293333333
Rounding to the nearest hundredth
96.29 mm^3
Please help me!
I need help!
Brainiest for best answer.
Answer:
m+5=7
Step-by-step explanation:
Write the word sentence as an inequality.
Then solve the inequality.
Five more than a number x is less than 17.
An inequality that represents this word sentence is x+5<17
The solution is ?
Answer:
x≤11
Step-by-step explanation:
x+5<17, I can subtract 5 on both sides so
x+5<17
-5 -5
x<12
that's wrong though because my x needs to make my answer less than x to make the statement true since we're looking for a value that is less than 17 not less than or equal to 17. So in conclusion, if x≤11 ( if x is less than or equal to 11), my statement will be true because 11+5<17=16<17, which is true. Even 10 or less is fine because it will still be smaller than 17 and that will keep my statement balanced.
Please answer i will put you the brainliast
If AQSR: AYXZ describes two triangles, which other statement is also true?
O AQRS = AXYZ
Ο :
O AQRS = AYZX
O AQRS = AZXY
O AQRS AXZY
Answer:
D
Step-by-step explanation:
The statement that is also true is: [tex]\triangle QRS \cong \triangle YZX[/tex]
The congruence statement is given as:
[tex]\triangle QSR \cong \triangle YXZ[/tex]
The above statement means that, we have the following corresponding points
Point Q and point YPoint S and point XPoint R and point ZThe above highlights mean that:
Triangle QSR corresponds to triangle YXZ
It also means that:
Triangle QRS corresponds to triangle YZX
Hence, the correct congruency statement is: [tex]\triangle QRS \cong \triangle YZX[/tex]
Read more about congruent triangles at:
https://brainly.com/question/1675117
A car can drive 30 miles in 25 minutes. How many miles could it drive in 75 minutes?
Answer:
90
First, divide: 75/25=3
Last 3x 30= 90
or
30
x 3
--------
90
Which type of graph would be best for showing the height of a sapling tree over the span of several weeks?
A. a bar graph
B. a circle graph
C. a histogram
D. a line graph
Answer:
its actually d
Step-by-step explanation:
it compares height to time
A clothing store donated a percent of every sale to hospitals. The total sales were $8,500 so the store donated $510. What percent of $8,500 was donated to hospitals? % of the total sales were donated. (Type a whole number or a decimal.)
pls help!!
Answer:
6%
Step-by-step explanation:
8,500(x) = 510
x = 510/8,500
x = 0.06
x = 6%
Which of the following is a solution to the system of nonlinear equations
below?
A. (0,0)
B. (3,0)
C. (3,0)
D. (0,3)
SOMEONE PLEASE HELP ASAP, THANK YOU SO MUCH
EXPLANATION = BRAINLIEST
Each gridline represents one mile. If Ryan drove from home to the soccer field and then from the soccer field to the library, traveling in a straight line to each destination, he would have traveled ___ miles by the time he reached the library.
Answer:
13units
Step-by-step explanation:
Using the distance formula;
D = √(x2-x1)²+(y2-y1)²
Distance from home to the soccer field is expressed as;
Home (0,0) and soccer field (-4,3)
D =√(3-0)²+(-4-0)²
D =√3²+4²
D =√9+16
D = √25
D = 5
Distance from soccer field to library is expressed as;
Library (4,3) and soccer field (-4,3)
D =√(-4-4)²+(3-3)²
D =√(-8)²+0²
D =√64
D = 8
Hence the total distance = 5 + 8 = 13units
PLEASE HELP :)
First to answer get brainliest
Which set of steps shows the solution to the equation 2y = -8?
1) y = -8 - 2; y = 6
2) y=-8=(-2); y = 4
3) y = -8 = 2; y = -4
4) y = -8 - (-2); y = -6
[tex]3) \: y = \frac{ - 8}{2} ; \: y = - 4[/tex] ✅
Step-by-step explanation:
[tex]2 \: y = - 8 \\ ⇢ y = \frac{ - 8}{2} \\ ⇢ y = - 4[/tex]
[tex]\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{.}}}}}[/tex]
Which of the following options correctly describes the graph below?
a) greatest integer function
b) “one-to-one” function
c) piecewise function
d) “many-to-many” function
PLEASE HELP ASAP!! DUE TONIGHT!! THANKS
EXPLANATION = BRAINLIEST
Question 4 options:
A figure with an area of 84 square cm is dilated by a factor is 2. The area of the dilated figure is ___ square cm.
Answer:
what ever sides are multiply the points by 2 each (x time 2, y times 2) Best I got. Hope this helps some
Step-by-step explanation:
figure out the sides then:
Ex. Perform a Dilation of 4 on point A (2, 3) which you can see in the picture below. Multiply the coordinates of the original point (2, 3), called the image, by 4. Image's coordinates = (2 * 4, 3 * 4) to get the coordinates of the image (8, 12).
Since this is the area x 2, multiply 84x2
Use mapping notation to descrittranslation left 3 units and down 5 units.
A (x) → (x - 3,75)
B. (x, y) = (x +3. y-5)
C. (x,y) → (x - 3, y + 5)
D. (x,y) → (*- 5.y+3)
Please select the best answer from the choices provided
A
B
С
D
WHATS THE ANSWER
Answer:
Step-by-step explanation:
What goes to answer help
Answer:
1/1.27
Step-by-step explanation:
given the right triangle below what is x?
Triangle side #1 is 4
Triangle Side #2 is 10
Answers:
A.9.2
B.10.8
C.84
D.116
Answer:
B 10.8 or
A 9.2 depending on what side of the triangle is "x".
Step-by-step explanation:
we cannot see the triangle and which side is which. you forgot to show us the picture (or describe it in more detail).
but I assume that "x" would be the Hypotenuse (the baseline of the right triangle, the side opposite of the 90 degree angle).
then by using Pythagoras
c² = a² + b²
=>
x² = 10² + 4² = 116
x = sqrt(116) = 10.8
but if x is any of the other sides (and not the Hypotenuse), then you need to adapt the calculation.
for example, if the Hypotenuse is the side with 10, then Pythagoras' formula would look like this
10² = x² + 4²
x² = 10² - 4² = 84
x = sqrt(84) = 9.2 (and answer A would be correct).
or if the Hypotenuse is the side with 4, then
4² = x² + 10²
x² = 4² - 10² = -84
x = sqrt(-84)
and that did not make any sense for real distances. so, this configuration is actually impossible for a right triangle.
can someone help me?
(2x+8)(2x+2)
[tex] 4 {x}^{2} + 20x + 16[/tex]
Step-by-step explanation:
[tex](2x + 8)(2x + 2) \\ = 2x(2x + 2) + 8(2x + 2) \\ = 4 {x}^{2} + 4x + 16x + 16 \\ = 4 {x}^{2} + 20x + 16[/tex]
[tex]\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{!}}}}}[/tex]
URGENT!!!
Select the correct answer.
A population has a standard deviation of 25.29. What is the approximate standard error of the mean for a sample size of 175?
The answer is 1.91 but can someone show me how they got that answer?
Will mark brainliest
Answer:
Standard error of the mean: 1.91
Step-by-step explanation:
The standard error of a sample mean is [tex]SEM=\frac{\sigma}{\sqrt{n}}[/tex] where [tex]\sigma[/tex] is the sample standard deviation and [tex]n[/tex] is the sample size. Therefore, the standard error of the mean for a sample size of 175 is [tex]SEM=\frac{\sigma}{\sqrt{n}}=\frac{25.29}{\sqrt{175}}=1.911744304\approx1.91[/tex]
What is the mean, Median, Mode and Range of 8, 10, 3, 9, 12, 4, and 3
qual o valor das expressões
(-5) + (+6) + (-2)?
(-22) - (+8) + (+10)?
(-12) . (+4) : (-2)?
Answer:
(-5) +(+6) +(-2) = (-1)
(-22) -(+8) +(10) =(-4)
Step-by-step explanation:
(-5)+ (+6) is 1 + (-2) is (-1)
(-22)-(+8) is (-14)+(10) is (-14)
Ariana spent a quarter of her allowance on sweets and she put one third of the remainder in her piggy bank. If she had twenty dollars left, what was her allowance
Answer:
$40
Step-by-step explanation:
Ariana spent a quarter of her allowance
1 - 1/4 = 3/4 was left
put one third of the remainder in her piggy bank
1/3 * 3/4 = 1/4
She spent 1/4 and piggy banked 1/4
so the $20 she had left was half her allowance.
allowance was $40
Ariana gets a very large allowance!
Please help I’ll give brainliest
Answer:
Step-by-step explanation:
A)0.000421m^2
C)25000L^2
B)9300000g^2
D)0.001439km^2
please help :)
I hope that I can get helped
Answer:
a = 8,059.52 m²
Step-by-step explanation:
Area of square
a = s²
a = 56²
a = 3,136
--------------------
Area of circle
a = πr²
a = 3.14(56/2)²
a = 2,461.76
Area of 4 semicircles = area of 2 circles
a = 2,461.76 * 2
a = 4,923.52
-----------------------
Total area
a = 3,136 + 4,923.52
a = 8,059.52 m²
What is the area of the right triangle below?
12
15
A. 15 sq. units
B. 180 sq. units
C. 17 sq. units
D. 90 sq. units
d
Step-by-step explanation:
s=(axh)/2
Answer:
90 sq.unitsStep-by-step explanation:
1/2 base times height.
What is the measurement of this angle ?
Answer:
135°
Step-by-step explanation:
Choose the inside scale
Solve the triangle. Round decimal answer to the nearest tenth...
Answer:
DE ≈ 16.1, ∠E ≈ 60.3°, ∠D ≈ 29.7°
Step-by-step explanation:
use pythagorean theorem:
DE² = 8² + 14² => DE = √8² + 14² ≈ 16.1
use inverse tangent function:
∠E = [tex]tan^{-1}[/tex](14/8) ≈ 60.3°
∠D = [tex]tan^{-1}[/tex](8/14) ≈ 29.7°
Answers:
side DE = 16.1 unitsangle E = 60.3 degreesangle D = 29.7 degreesThe "units" and "degrees" portions of the answers are likely to be left out.
===============================================
Explanation:
Since we have a right triangle, we can use the pythagorean theorem to find the hypotenuse DE
a^2+b^2 = c^2
c = sqrt(a^2+b^2)
c = sqrt(8^2+14^2)
c = 16.124515496597
c = 16.1 is the approximate length of side DE
----------------------------------
We'll use the tangent ratio to find angle E
tan(angle) = opposite/adjacent
tan(E) = FD/FE
tan(E) = 14/8
E = arctan(14/8)
E = 60.2551187030578
E = 60.3 degrees
The notation arctan is the same as inverse tangent. You should have a [tex]\tan^{-1}[/tex] button on your calculator to help compute the inverse tangent.
-------------------------------------
We could use the tangent ratio to solve for angle D, by noting that
tan(D) = 8/14
or we could use the idea that D+E = 90 which solves to D = 90-E
D = 90-E
D = 90-60.3
D = 29.7 degrees
Note how arctan(8/14) = 29.74488 which rounds to 29.7
Which triangle’s unknown side length measures 7 units?
Answer:4
Step-by-step explanation:
find the value of x.
Answer:
x = 7
Step-by-step explanation:
9x + 4 + 113 = 180
9x + 117 = 180
9x + 117 - 117 = 180 - 117
9x = 63
9x ÷ 9 = 63 ÷ 9
x = 7
Answer:
9x + 4 + 180 + 113=360
9x + 297=360
9x=360-297
9x=63
9x÷9=63÷9
x=7
the diameter of a circle is 18 centimeters. What is the area? Give the exact answer in simplest form
Answer:
254.47
Step-by-step explanation:
Formula is pi r^2
the radius is 9 which is half of the diameter
pi 9^2
khan academy, law of sines
Answer:
m∠B = 76°
Step-by-step explanation:
[tex]\frac{sinB}{b}=\frac{sinC}{c}\\\\sinB=\frac{sinC}{c}(b)\\\\B=sin^{-1}(\frac{sin(29)}{9}(18))\\\\B=75.8=76[/tex]
Therefore, m∠B = 76°.