La verdad Que Yo Tampoco ce
Answer:
Step-by-step explanation:
PQRST is a rectangular-based pyramid with a height of 9cm.
Find the angle between the line ST and the plane PQRS.
Give your answer correct to 1 decimal place.
Answer:
54.1° (1 dp)
Step-by-step explanation:
Let the center point of the rectangle PQRS = M
Calculate the length of the line SM using Pythagoras' Theorem:
a² + b² = c²
(11/2)² + (7/2)² = SM²
42.5 = SM²
SM = √42.5 cm
The height of the pyramid is 9 cm, therefore, MT = 9
Now we have a right angled triangle with base SM and height MT and hypotenuse ST
We want to find the angle TSM, so we can use the trig formula tan x = O/A, where x is the angle, O is MT and A is SM
tan TSM = MT/SM = 9/√42.5
TSM = arctan (9/√42.5) = 54.082088°
So the angle between the line ST and the plane PQRS = 54.1° (1 dp)
What is the estimate value of 102.3 divided by 4.7
Answer:
20
Step-by-step explanation:
Answer:
The answer is 20
Step-by-step explanation:
To estimate, round. 102.3 rounds to 100 and 4.7 rounds to 5; this means we divide 100/5, which is 20.
Who can answer this Algebraic Expression for me?
3(m-5)+m
Eliza is building a fence that is 1/4 mile. She plans to build it in 3 days. How long should the section of fence be that Eliza builds each day
Answer:
One Twelfth (1/12) of a Mile per Day
Step-by-step explanation:
If Eliza has 3 days to build this fence, you can divide the total length of the fence (1/4 mile) into 3 sperate sections for each day. Dividing 1/4 by 3 gets you. 1/12 of a mile will be built each day.
If you buoyant thirteen gallons of gas for 25.00how much did you pay per gallon
HURRY ITS A TEST!!
Answer:
$1.92
Step-by-step explanation:
25/13 = 1.92
Levi started collecting lunch boxes when he was 5 years old. He had 18 superhero lunch
boxes, 24 outer space lunch boxes, and 21 rock band lunch boxes.
)) Then Levi's cousin started her own lunch box collection. Levi wanted to help her get
started, so he gave his cousin 25 lunch boxes from his collection. How many lunch boxes
does Levi have left in his collection?
Answer:
38
Step-by-step explanation:
24+21+18=63
63-25=38
Answer:
He was left with only 38 lunch boxes.
Step-by-step explanation:
During a weekend, the manager of a mall gave away gift cards to every 80th person who visited the mall.
• On Saturday, 983 people visited the mall.
• On Sunday, 1,033 people visited the mall.
How many people received a gift card?
Answer:
24
Step-by-step explanation:
983 / 80 to find the amount on saturday
983 / 80 = 12.2875
1033 / 80 to find the amount on sunday
1033 / 80 = 12.9125
add the whole numbers together as there was 12 lots of 80 people on both days
12+12 = 24
Answer:
on saturday 12 ppl, on sunday 12 ppl
Step-by-step explanation:
if 100 ppl are visiting then 80th person will receive gift. thats 100/80 and quotient is 1. so one person in first 100. 2 ppl in 200 ppl, 3 ppl in 300..and on.
980/80 will have quotient of 12. so 12 ppl on saturday
same way 1033/80 will have quotient of 12.
totally 24
Can anybody tell me how to turn the equations above into slope intercept form so I can graph it?
NO LINKS OR I WILL REPORT!
Answer:
First then second answer below
Step-by-step explanation:
-x+y 4
-1/-1=1 x=1 y=1
y/1=1/1+4/1
y=1x+4
-x+7y 21
-1/-1=1
7y/7=1/7+21/7
y=1/7x+3
what’s the slope and y - intercept of this equation ?
Answer:
slope = -7/5
y=3
Step-by-step explanation:
This is all I know
A pair of shoes are on sale for 25% off their regular price of $180. Students at Pikesville Middle can get an additional 10% off of the shoes with their school ID. What is the final cost for the shoes after both discounts
Answer:
$121.5
Step-by-step explanation:
$180 × 0.25 = $45 <-- because it is a discount, we will subtract
$180 - $45 = $135 <-- price with 25% discount
$135 × 0.10 = $13.5
$135 − $13.5 = $121.5
PLS HELP!!! 20 pts!!!!
1. If QR = 12 and QR is a perpendicular bisector of TS, determine which of the following claims are true.
Answer:
see explanation
Step-by-step explanation:
Since QR is a perpendicular bisector then Δ RST is isosceles
with 2 congruent legs , that is
RT = RS , substitute values
6x - 4 = 3x + 8 ( subtract 3x from both sides )
3x - 4 = 8 ( add 4 to both sides )
3x = 12 ( divide both sides by 3 )
x = 4
Then RS = 3x + 8 = 3(4) + 8 = 12 + 8 = 20
so RT = RS = 20
Using Pythagoras' identity in right triangle QRT
QT² + QR² = RS²
QT² + 12² = 20²
QT² + 144 = 400 ( subtract 144 from both sides )
QT² = 256 ( take square root of both sides )
QT = [tex]\sqrt{256}[/tex] = 16
In summary
RS = 12 is False ( RS = 20 )
x = 4 is True
x = 3 is False
QT = 16 is True
Help help me help help plz plz help help plz fix plz
The 3rd choice is the correct
if x >0 then f(x) >0 is always true
can someone help me?
Answer:
61.538
Step-by-step explanation:
Use the distributive property to write an equivalent expression to 45 + 30x
Use the distributive property to write an equivalent expression to 45 + 30x
15(2x+3)
15(30+30x)
3(15+10x)
1/3( 135+90x)
1/2(45+30x)
Answer:
15(2x + 3)
Step-by-step explanation:
First find the greatest common factor of 45 and 30.
That's 15.
Now we factor 15 out of the expression :
45 + 30x = 15(3 + 2x)
Therefore, the answer is the first option, 15(2x + 3). Hope this helps! :)
HELP ASAP WILL MARK BRAINLIEST 100 POINTS!! I need to know how to solve this problem I need to know these steps step by step PRODUCT RULE QUOTIENT RULE NEGATIVE RULE POWER OF A POWER POWER OF A PRODUCT POWER OF A QUOTIENT AND ZERO RULE
Answer
Step-by-step explanation: The Power of a Quotient Rule states that the power of a quotient is equal to the quotient obtained when the numerator and denominator are each raised to the indicated power separately before the division is performed.
Select all the properties of a kite.
Select one or more:
A.
They are a parallelogram.
B.
They are quadrilaterals.
C.
They have opposite sides that are congruent
D.
They have perpendicular diagonals
Answer:
B.Step-by-step explanation:
Here are the Options verified:
A. Incorrect. Kites can't be parallelograms.B. Correct. Kites are quads. Quads have 4 sides. A kite has 4 sides.C. Incorrect. They don't have opposite sides that are congruent.Correct choice is B.
Answer:
•Can have congruent diagonals. •Has one pair of opposite, parallel sides.
Kites:
•Has congruent adjacent sides.
•Has perpendicular diagonals.
Step-by-step explanation:
The width of a rectangle is 2 cm longer than its length. Identify the polynomial that represents the area of the rectangle, and its area when the length is 5 cm.
The area of the rectangle will be 35cm²
Area of a rectangleThe formula for calculating the area of a rectangle is expressed as:
A = lw
If the width of a rectangle is 2 cm longer than its length, then;
w = l + 2
Substitute the given values into the formula:
A = l(l+2)
A = l² + 2l
Given the following parameters:
l = 5cm
A = (5)² + 2(5)
A = 25 + 10
A = 35cm
Hence the area of the rectangle will be 35cm²
Learn more on area of rectangle here: https://brainly.com/question/25292087
In the diagram below, DE is parallel to AB in right triangle ABC. DE bisects AC and CB. If AD = 3, and CB = 5, what is the length of DE?
А
D
The length DE is the hypotenuse of triangle CDE
The length DE is [tex]\frac{\sqrt{61}}2[/tex]
How to determine the length DEThe given parameters are:
[tex]AD =3[/tex]
[tex]CB = 5[/tex]
Given that line DE bisects AC and CB, it means that:
[tex]CD = AD = 3[/tex]
[tex]CE = EB = 2.5[/tex] i.e. CB/2
So, we have:
[tex]DE =\sqrt{AD^2 + CE^2[/tex] --- Pythagoras theorem
Substitute known values
[tex]DE =\sqrt{3^2 + 2.5^2[/tex]
[tex]DE =\sqrt{15.25[/tex]
Express as fraction
[tex]DE =\sqrt{\frac{61}{4}[/tex]
Simplify
[tex]DE =\frac{\sqrt{61}}2[/tex]
Hence, the length DE is [tex]\frac{\sqrt{61}}2[/tex]
Read more about right triangles at:
https://brainly.com/question/2437195
Consider these scenarios. 1. A piano weighs 5. 5 × 102 units. 2. A grain of salt weighs 1. 02 × 10-3 units. 3. A tractor trailer weighs 8. 8 × 101 units. Determine the unit of measurement that best represents each scenario. 1. 2. 3.
The unit of measurement that represents each scenario are:
The piano weighs 550 Ib (pounds).
The grain of salt weighs 0.00102 gram
A tractor-trailer weighs 88 tons.
What is a unit of measurement?The unit of measurement is a standard entity that is used to represent and express the magnitude of a physical quantity.
By following the standard unit of measurement;
Weight is a physical quantity and can be measured in grams or kilograms.
A piano weighs [tex]5.5 \times 10^2[/tex] units. A grain of salt weighs [tex]1.02 \times 10^{-3}[/tex] units. A tractor-trailer weighs [tex]8.8 \times 10^1[/tex] units.Learn more about the unit of measurement here:
brainly.com/question/777464
(3+4)-(4/4-2)+(3(4+2)/3)
Answer:
14
Step-by-step explanation:
Step-by-step explanation:
Hope it helps you.
Sorry for that drawing. lol. Just for fun.
Stay blessed.
Please HELP!!
Solve the system of linear equations by substitution
2x+3y=0
8x +9y =18
Answer:
Step-by-step explanation:
Step 1:
Isolate x (1st Equation)
2x + 3y = 0
- 3y = -3y
2x = -3y
Step 2:
Divide both sides by 2
x = -3y/2
Step 3:
Replace the x from 8x with -3y/2 and Solve the equation
8(-3y/2) + 9y = 18
-12y + 9y = 18
-3y = 18
y = -6
Step 4:
Go back to the 1st equation and replace the y from 3y with -6. You are now solving for x. Solve the equation.
2x + 3(-6) = 0
2x - 18 = 0
+ 18 = +18
2x = 18
x = 9
Step 5:
Write your final answer.
(x, y) = (9, -6)
gerry is checking to see how many customers the barber shop had in the past 2 weeks. on the list there were 217 customers during the past 2 weeks and 5/7 of them were men. how many of the customer were men?
please help me quick
Answer:
155
Step-by-step explanation:
5/7 * 217 = 155 men
(Dont mind this. I just need to write sth to make it long)
y
∝
1
√
x
If
y
=
100
when
x
=
36
find,
x
when
y
=
200
Answer:
x = 9
Step-by-step explanation:
See the attachment for step-by-step
may someone please help me??
thank u so much
Answer:
She collected 1 2/3 or [tex]1 \frac{2}{3}[/tex] kilograms
Step-by-step explanation:
(2/3)s of 2 and 1/2
Make 2 1/2 into an improper fraction.
5/2
'Of' is the same thing as multiplying. So, (2/3)*5/2
2*5 to get 10
3*2 to get 6
10/6. 10/6 reduced to a proper fraction is 1 2/3.
Solve:
Solve.
8
x
Michelle started with 5 dolls in bar
collection. Each month she bought
3 more. How many months did it
take her to collect 59 dolls?
lect sy
Does the line passing through the points (-4, 3) and (6, -2) intersect the line passing through the points (-6, 6) and (-2, 4)?
Answer:
No.
Step-by-step explanation:
1) if the given line passing through the points (-4;3)&(6;-2) is line a, and the another given line is b, then
2) it needed to compare the slopes of a and b:
[tex]slope(a)=\frac{-2-3}{6+4}=\frac{-1}{2};[/tex]
[tex]slope(b)=\frac{4-6}{-2+6}=\frac{-1}{2};[/tex]
3) if slope(a)=slope(b), then the given lines a and b are parallel (no intersections).
A scientist needs 10 L of a solution that is 60% acid. She has a 50% acid solution and a 90% acid solution she can mix together to make the 60% solution. Let x represent the number of liters of the 50% solution. Let y represent the number of liters of the 90% solution. Which equation represents the total liters of acid that are needed? Question 3 options: x y = 6 x y = 10 0. 5x 0. 9y = 6 0. 5x 0. 9y = 10.
Allegation is a method to find the ratio in which two or more indignant are mixed to produce a mixture or solution.
The equation represents the total liters of acid that are needed is,
[tex]0.5x+0.9y=6[/tex]
Thus the option 3 is the correct option.
What is allegation?Allegation is a method to find the ratio in which two or more indignant are mixed to produce a mixture or solution.
Given information-
A scientist needs 10 L of a solution that is 60% acid.
The percentage of two acid solution are 50% and 90%.
Variable x represent the number of liters of the 50% solution.
Variable y represent the number of liters of the 90% solution.
Quantity of acid from 50% solution is [tex]0.5x[/tex] liters, and quantity of acid from 90% solution is [tex]0.9x[/tex] liters.
As the scientist needs 10 L of a solution that is 60% acid. Therefore the quantity of acid in 60 percent acid solution is,
[tex]a=10\times\dfrac{60}{100} \\a=6[/tex]
Thus 6 liters of acid required by the scientist. As to get the 6 liters of acid from 50% and 90 percent solution, we need to add the amount of acid in these solutions.Thus,
[tex]0.5x+0.9y=6[/tex]
This is the required equation.
Hence the equation represents the total liters of acid that are needed is,
[tex]0.5x+0.9y=6[/tex]
Thus the option 3 is the correct option.
Learn more about the mixture and allegation here;
https://brainly.com/question/24372098
Ned has 55 marbles in his collection he has twice as many white marbles as red marbles he has five more blue marbles than white marbles how many white marbles does Ned have
Answer:
7 marble's
Step-by-step explanation:
55 marbles and twice as many white marbles as red marbles and he has 5 more blue marbles than white marble's
Does x=y-1 represent a fraction ?
Answer: Yes
Step-by-step explanation:
Answer:
yes it does represent as a fraction
40 50 60 70 80 90 100 what is the range
