Answer:
Może być odpowiedź c ja ne wiem
How many grams is 3.3 mole of Mg(OH)2 ?
Answer: m = 3.3 mol·58.326 mol = 192 g
Step-by-step explanation: molar mass of substance is
M= (24.31+ 2·1.008 + 2·16) g/mol = 58.326 g/ mol.
Amount of substance n = m/M and mass m = n·M
Sarah made $180 for 12 hours of work. At the same rate, how much would he make for 17 hours of work?
Answer:
1260
Step-by-step explanation:
180 x 2
Please find the fully simplified intercept form!!!! Will mark Brianliest !!!!!!!!!!!
HELP PLEASE !!!!!!!!!!!!!!!!!!!!
Answer:
y = -1/3x - 8Step-by-step explanation:
Slope intercept form:
y = mx + bUse two points from the graph:
(0, -8) and (3, -9)The first point is the y-intercept:
b = -8Find the slope using the slope formula:
m = (y2 - y1)/(x2 - x1)m = (-9 - (-8))/3 = -1/3The equation is:
y = -1/3x - 8what is the volume of this cone
Answer:
160/3π
Step-by-step explanation:
π ·r² · h/3
π · 4² · 10/3
π · 16 · 10/3
= 160/3 π
Based only on the information given in the diagram, which congruence
theorems or postulates could be given as reasons why ADEF= AKLM?
Check all that apply.
AA
O A. LA
ОВ. НА
O C. AAS
D. SAS
E HL
F.LL
=================================================
Explanation:
LA stands for Leg Angle. More specifically, the angle is an acute angle. This theorem only works for right triangles. We see that ED = LK which is one pair of congruent leg segments. So that takes care of the L part of LA. However, we don't know anything about the acute angles. We don't know if angle E = angle L, or if angle F = angle M, or something along those lines. We need angle markers to tell us or not.
In short, we only have half the info needed for LA, so we must cross choice A off the list.
----------------
HA stands for hypotenuse angle, or hypotenuse acute angle, and this rule only applies for right triangles. We don't know anything about the hypotenuse lengths if they are the same or not.
Similar to choice A, we don't know anything about the acute angles either.
Those two facts mean we must cross off choice B.
----------------
AAS stands for Angle Angle Side. The order is important because the side is not between the angles. The diagram only shows one pair of angles that are congruent to one another. That pair being the 90 degree angles indicated with the square marker. We don't have another pair of angles, so we cannot use AAS.
Cross choice C off the list.
-----------------
We can use SAS because we have two pairs of congruent sides and one pair of congruent angles.
The congruent sides are
ED = LK (double tickmarks)DF = KM (single tickmarks)That takes care of the two "S"s of "SAS". The "A" would be those two right angles which are congruent to one another. The angles are between the congruent sides which is important. Recall that SSA is not a valid congruence theorem.
So that's why choice D is the only answer.
-----------------
Side note: We could use the LL theorem, where L stands for leg, since we are given two pairs of congruent legs for each triangle. Like LA and HA, this only applies to right triangles. LL is a special case of SAS. However, LL isn't listed so we'll just be sticking with SAS as the only answer.
Sebastian tiene un terreno cuadrado cuya area e de 81 m a la 2 si sebastian tiene planeado instalar una cerca alrrededor del terreno¿ cuantos metros nesecita?
Answer:
Length of fancying need = 36 m
Step-by-step explanation:
Given:
Area of square field = 81 m²
Find:
Length of fancying need
Computation:
Area of square field = 81 m²
Side² = 81
Side = 9 m
Length of fancying need = 4 x side
Length of fancying need = 4 x 9
Length of fancying need = 36 m
Is APQR EASTR? If so, name the postulate or theorem that justifies the congruence.
A. Yes, the triangles are congruent by SSA.
B. Yes, the triangles are congruent by SAS.
C. Yes, the triangles are congruent by SSS.
D. No, the triangles cannot be proven congruent with SSA information.
Answer:C SSS
Step-by-step explanation:
I got SSS because with the given sides equal, it can be said R is the midpoint of QT therefore QR≈RT and the triangles are congruent by SSS. The theorem used was midpoint theorem
NEED THIS QUESTION WUICK PLEASE
option three, I think
[tex]3 \sqrt[3]{4} [/tex]
1 A rectangular pool in your friend's yard is 150 ft. X 400 ft. Create a scale drawing with a scale factor of Use a table or an 6001 equation to show how you computed the scale drawing lengths.
In ARST, r = 530 cm, s = 530 cm and t=950 cm. Find the measure of T to the
nearest 10th of a degree.
Answer:
127.3
Step-by-step explanation:
T≈127.333≈127.3
∘
A number cube is labeled 1 through 6. It is rolled 240 times and the results are shown in the table below.
Number Outcomes
1 42
2 41
3 37
4 44
5 40
6 36
Based on the outcomes, if it is rolled 60 more times how many times will it land on a 4 or 5?
A.
7
B.
11
C.
20
D.
21
50 pts if you help don't be a brainly will take it down if you do and you wont get the points
Answer:
21
Step-by-step explanation:
It landed on 4 and 5 about 37% of the time with 240 rolls. So since 60 is 1/4 of 240, we just divided the number of times it landed on 4 and 5 by 4. So since it landed on 4 or 5 84 times, we divide 84 by 4
84 ÷ 4 = 21
So the number of times the cube will land on 4 or 5 is 21
The time is 6o'clock. What are the next two times at which the hour and minute hands will be perpendicular?
Answer:
The two times are 6:15 and 6:45
Step-by-step explanation:
Given
[tex]Time = 6\ O'\ clock[/tex]
Required
Next two times which the hour and minute hands are perpendicular
For a time to have perpendicular hands, the difference between the hour and minute hands must be 15 minutes.
Having said that:
15 minutes after 6 O' clock is: 6 : 15 (This is perpendicular)
15 minutes after then is 6 : 30 -- This is not perpendicular
15 minutes after then is 6 : 45 -- This is perpendicular
Hence, the two times are: 6:15 and 6:45
ALGEBRA 2 HELP!!!!!!!!
Answer:
domain: (-∞ , ∞) ; range: f(x) ≥ 3
Step-by-step explanation:
domain: (-∞ , ∞) ; range: f(x) ≥ 3
Solve for t: t + 7 = 21 A. t = 28 B. t = 14 C. t = -28 D. t = -14
Answer:
B t= 14
Step-by-step explanation:
t + 7 = 21
collect like terms
t = 21 - 7
t = 14
pls help asap thankyou
Answer:
The slope of the line would be a. 0.
Answer:
im bad at math but i would guess the asnswer is 0. :)
Step-by-step explanation:
Solve the inequalities and compare.
oso
a. Solve 2x + 6 < 10.
b. Solve - 2x + 22 < 18.
Answer:
2
Step-by-step explanation:
1 Subtract 66 from both sides.
2x=10-6
2x=10−6
2 Simplify 10-610−6 to 44.
2x=4
2x=4
3 Divide both sides by 22.
x=\frac{4}{2}
x=
2
4
4 Simplify \frac{4}{2}
2
4
to 22.
x=2
x=2
Done
2x+22=18
We move all terms to the left:
2x+22-(18)=0
We add all the numbers together, and all the variables
2x+4=0
We move all terms containing x to the left, all other terms to the right
2x=-4
x=-4/2
x=-2
Solve the system of equations:
2x + 3y = 10
x - 2y = -2
(2,1)
(0,1)
(0,2)
(2,2)
No solution
Answer:
(2,2)
Step-by-step explanation:
2x+3y=10
x−2y=−2
In order to solve by elimination, coefficients of one of the variables must be the same in both equations so that the variable will cancel out when one equation is subtracted from the other.
2x+3y=10,x−2y=−2
To make 2x and x equal, multiply all terms on each side of the first equation by 1 and all terms on each side of the second by 2.
2x+3y=10,2x+2(−2)y=2(−2)
Simplify.
2x+3y=10,2x−4y=−4
Subtract 2x−4y=−4 from 2x+3y=10 by subtracting like terms on each side of the equal sign.
2x−2x+3y+4y=10+4
Add 2x to −2x. Terms 2x and −2x cancel out, leaving an equation with only one variable that can be solved.
3y+4y=10+4
Add 3y to 4y.
7y=10+4
Add 10 to 4.
7y=14
Divide both sides by 7.
y=2
Substitute 2 for y in x−2y=−2. Because the resulting equation contains only one variable, you can solve for x directly.
x−2×2=−2
Multiply −2 times 2.
x−4=−2
Add 4 to both sides of the equation.
x=2
The system is now solved.
x=2,y=2
Correct choice is D) 2,2
What is the example of ratio?
Answer:
Step-by-step explanation:
f there are eight oranges and six lemons in a bowl of fruit, then the ratio of oranges to lemons is eight to six (that is, 8∶6, which is equivalent to the ratio 4∶3). Similarly, the ratio of lemons to oranges is 6∶8 (or 3∶4) and the ratio of oranges to the total amount of fruit is 8∶14
20. 7/9+2/6
A.3/9
B.4/9
C.7/18
D.5/15
Answer:
i dont know why but it has to be 10/9 but there is no this option
Step-by-step explanation:
PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!
Answer:
DE/DF, D
Step-by-step explanation:
no explanation, it's a law
What are the steps to solving the equation: -3w+9= -12
Answer:
Simplify each side of the equation by removing parentheses and combining like terms.
Use addition or subtraction to isolate the variable term on one side of the equation.
Use multiplication or division to solve for the variable.
Step-by-step explanation:
Answer:
Solution
= −7
Step-by-step explanation:
3 + 9 = − 12
3 + 9 − 9 = − 12 − 9
Subtract the numbers
Subtract the numbers
3 = − 21
Divide both sides of the equation by the same term
3 = − 21
3/3 = −21/3
Solution
= −7
Pls help plsssssss thanks
Answer:
1. 99.33
2. 96
Hellllllllllllllllllllp
Answer:
B would be your answer worked for me.
Step-by-step explanation:
While eating dinner, Marian ate 25% of the apple slices she had in her bag. There were 20 apple slices in her bag. How many apple slices did Marian eat?
Answer:
She ate 5 apple slices
Step-by-step explanation:
25% of 20 is 5.
That means if she ate 5 slices, she ate 25% of the apple slices.
Hope this helped! Please give brainliest if it did help!
Answer:
5
Step-by-step explanation:
25% of 20 is 5
Circle D is below. ⌢
What is the arc measure of BC in degrees
Answer:
[tex]BC = 84[/tex]
Step-by-step explanation:
Given
See attachment
Required
Find BC
The sum of [tex]angles\ at\ a\ point[/tex] is 360.
So:
[tex]7n + 12 + 13n - 16 + 6n = 360[/tex]
Collect like terms
[tex]7n + 13n + 6n = 360 + 16 - 12[/tex]
[tex]26n = 364[/tex]
Solve for n
[tex]n = 364/26[/tex]
[tex]n = 14[/tex]
From the circle:
[tex]BC = 6n[/tex]
Substitute 14 for n
[tex]BC = 6*14[/tex]
[tex]BC = 84[/tex]
PLSSS someone help me out
1. Which of the following is a right triangle?
A.A piece of steel with sides 2 meters, 4 meters, and 5 meters,
B.A stained-glass window with sides 8 inches, 15 inches, and 20
inches.
C.A garden with sides 12 feet, 34 feet, and 37 feet.
D.ceramic tile with sides 20 centimeters, 21 centimeters, and 29
centimeters.
Answer:
c
Step-by-step explanation:
Answer:
D 20,21,29
Step-by-step explanation:
What is the area of the triangle?
11
A
14
4
Answer:
I think the answer is 28, which you can find by multiplying 4 by 14 and dividing it by 2.
I need help with the equation.
Answer:
(x - 3)² + (y + 9)² = 25
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k ) are the coordinates of the centre and r is the radius
Given area = 25π , that is
πr² = 25π ( divide both sides by π )
r² = 25 ( take the square root of both sides )
r = [tex]\sqrt{25}[/tex] = 5
With centre (h, k) = (3, - 9 ) and r = 5 , then
(x - 3)² + (y - (- 9) )² = 5² , that is
(x - 3)² + (y + 9)² = 25
Answer:
hiiiiiiiiiiiii
Step-by-step explanation:
ANSWER BELOW I WILL MARK BRAINLIEST!! :)
Answer:
brainliest please?
:) <3
Step-by-step explanation:
3 goes to A
1 goes to B
6 goes to C
5 goes to D
and 8 goes to E