Answer:
15 minutes
Step-by-step explanation:
2 hours equals 120 minutes.
so if you divide 120 by 1/8 you get 15
which would be the amount of time she spent playing the trumpet.
Hope this helps!! :)
If you place a 33-foot ladder against the top of a building and the bottom of the ladder is 26 feet from the bottom of the building, how tall is the building? Round to the nearest tenth of a foot.
Answer:
20.3 ft
Step-by-step explanation:
You want to know the height of a building if a 33 ft ladder reaches from the top of the building to a point 26 ft from the bottom of the building.
Right triangleThe geometry can be modeled by a right triangle with hypotenuse 33 ft and one leg of 26 ft. The other leg length (the building height) is found using the Pythagorean theorem.
26² + h² = 33²
h = √(33² -26²) ≈ 20.3 . . . . ft
The building is about 20.3 feet high.
__
Additional comment
This ladder makes an angle of about 38° with the ground. For ladder safety, an angle around 70° is usually recommended.
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sammy begins her babysitting job with$30 in her bank account and earns $50 per week
Answer:
$30+$50x
Step-by-step explanation:
$30 that she has plus $50 plus x week(s)
Emma had 132 marbles.12 of them were blue and 14of them were red.the rest were white.how many white marbles did emma have?
Answer:
106 white marbles
Formula:
(Blue)+(Red)=(Answer)
(Total Marbles)-(Answer)=(White)
Work:
12 + 14 = 26
132 - 26 = 106
The image is not drawn to scale.
Which is the measure of ∠A?
Answer:
Step-by-step explanation:
A:If the greatest unit cubes in a solid is 8. B:The least number of unit cubes is 1. What would the front view of both solids in parts A and b
Answer:
this question is confusing
Amber simplified the expression (a4+7a−16)−(12a3−5a+3) below. Amber made her first error at,
Problem: (a4+7a−16)−(12a3−5a+3)
Step 1: a4+7a−16−12a3+5a−3
Step 2: a4−12a3+7a+5a−16−3
Step 3: −11a+7a+5a−16−3
Step 4: −11a+12a−16−3
Step 5: −11a+12a−19
Answer:
It’s step 3 became she forgot to add a^4 in the problem when solving
i need this now asap
Answer:
Step-by-step explanation:
either 150.7 or 40
what is the value of BC in the given triangle?
Answer:
BC = 1.2, Option B
Step-by-step explanation:
1). Apply Law of Cosine: [tex]c^2=a^2+b^2-2ab\cdot cos(\gamma)[/tex]
[tex]BC^2=AB^2+AC^2-2\cdot AB\cdot AC\cdot cos(\angle\ BAC)[/tex]
[tex]AB=2\\AC=1\\\angle BAC=25[/tex]
2). [tex]BC^2=2^2+1^2-2\cdot 1\cdot cos(25)[/tex]
[tex]BC=1.17[/tex]
At a carnival, a customer notices that a prize wheel has 5 equal parts, one of which is labeled "winner. " She would like to conduct a simulation to determine how many spins it would take for the wheel to land on "winner. " She assigns the digits to the outcomes.
0, 1 = winner
2-9 = not a winner
How can a random number table be used to simulate one trial of this situation?
A) Read 100 single-digit numbers. Count the number of 0s and 1s.
B) Read single-digit numbers until finding the first 0 or 1. Count the number of 0s and 1s.
C) Read single-digit numbers until finding the first 0 or 1. Count the number of digits needed to get the first 0 or 1.
D) Read 100 single-digit numbers. Count the number of digits needed to get a 0 and the number of digits needed to get a 1
Considering the probability concept, a random number table could be used as follows:
C) Read single-digit numbers until finding the first 0 or 1. Count the number of digits needed to get the first 0 or 1.
What is a probability?A probability is given by the number of desired outcomes divided by the number of total outcomes.
In this problem, we want to count the number of spins it takes to reach values of 0 or 1, when there are 10 possible outcomes, hence option C is correct.
More can be learned about probabilities at https://brainly.com/question/14398287
Evaluate the expression for the given values of the variables:
4(c + 5) - f^4; c = -1, f = 4
Answer:
-240Step-by-step explanation:
Given
4(c + 5) - f^4c = -1, f = 4Substituting values
4(-1 + 5) - 4^4 =4*4 - 256 =16 - 256 =-240the endpoints of st are (2,22) and T(4,2). What are the coordinates of the midpoint st?
Answer: (3,12)
Step-by-step explanation:
1. Add both y-coordinates
2. Add both x- coordinates
3. Divide both by two
Answer should be (3,12)
What is the approximate volume of the cone? Use 227
22
7
for π. Enter your answer in the box.
Answer :
132 cm³.Explanation :
We know,
⠀
[tex]{ \longrightarrow \bf \qquad { { Volume_{(cone) }= \dfrac{1}{3} \pi {r}^{2}h }}}
[/tex]
⠀
Where,
r is the base radius of the cone.h is the height of the cone.⠀
Here,
Radius of the cone is 3 cm .Height of the cone is 14 cm .We will take the value of π as [tex] \sf \: \dfrac{22}{7} [/tex]⠀
Substituting the value in the formula :
⠀
[tex]{ \longrightarrow \sf \qquad { { Volume_{(cone) }= \dfrac{1}{3} \times \dfrac{22}{7} \times {3}^{2} \times 14 }}}[/tex]
⠀
[tex]{ \longrightarrow \sf \qquad { { Volume_{(cone) }= \dfrac{1}{ \cancel3} \times \dfrac{22}{ \cancel7} \times { \cancel9} \times \cancel{14 }}}}[/tex]
⠀
[tex]{ \longrightarrow \sf \qquad { { Volume_{(cone) }= 1 \times 22 \times 3 \times 2 }}}[/tex]
⠀
[tex]{ \longrightarrow \sf \qquad { { Volume_{(cone) }= 1 \times 22 \times 6 }}}[/tex]
⠀
[tex]{ \longrightarrow{ \pmb {\mathfrak {\qquad { Volume_{(cone) }= 132 }}}}}[/tex]
⠀
Therefore,
The volume of the cone is 132 cm approximately .Question :-
Calculate the Volume of Cone, if the following dimensions are Radius as 3 cm and Height as 14 cm .Answer :-
Volume of Cone is 132 cm .Explanation :-
As per the provided information in the given question, we have been given that the Radius of the Cone is 3 cm . Its Height is given as 14 cm . And, we have been asked to calculate the Volume of the Cone .
For calculating the Volume , we will use the Formula :-
[tex] \bigstar \: \: \: \boxed{ \sf{ \: Volume \: _{Cone} \: = \: \frac{1}{3} \: \pi {r}^{2} h \: }} [/tex]
Where ,
R denotes to the RadiusH denotes to the HeightTherefore , by Substituting the given values in the above Formula :-
[tex] \dag \: \: \: \sf{Volume \: _{Cone} \: = \: \dfrac{1}{3} \: \times \: \pi \: \times \: {r}^{2} \: \times \: h } [/tex]
[tex] \longmapsto \: \: \sf{Volume \: _{Cone} \: = \: \dfrac{1}{3} \: \times \: \dfrac{22}{7} \: \times \: ( {3})^{2} \: \times \: 14 } \\ [/tex]
[tex] \longmapsto \: \: \sf{Volume \: _{Cone} \: = \: \dfrac{1}{3} \: \times \: \dfrac{22}{7} \: \times \: 9 \: \times \: 14 } \\ [/tex]
[tex] \longmapsto \: \: \sf{Volume \: _{Cone} \: = \: \dfrac {1}{1} \: \times \: \dfrac {22}{1} \: \times \: 3 \: \times \: 2 } [/tex]
[tex] \longmapsto \: \: \sf {Volume \: _{Cone} \: = \: 1 \times \: 22 \: \times \: 3 \: \times \: 2} [/tex]
[tex] \longmapsto \: \: \sf {Volume \: _{Cone} \: = \: 1 \times \: 22 \: \times \: 6} [/tex]
[tex] \longmapsto \: \: \sf {Volume \: _{Cone} \: = \: 22 \: \times \: 6} [/tex]
[tex] \longmapsto \: \: \bf {Volume \: _{Cone} \: = \: 132 \: cm } [/tex]
Hence :-
Volume of Cone = 132 cm .[tex] \underline {\rule {200pt} {4pt}} [/tex]
Which choice shows a reflection across the x-axis?
A) A
B) B
C) C
D) D
Graph (D) indicates a reflection across the x-axis.
What is a transformation?A point is transformed when it is moved from where it was originally to a new location. Translation, rotation, reflection, and dilation are examples of different transformations.
As we know that reflection across the x-axis is defined as reflecting a point across the y = x, the x-coordinate, and y-coordinate places, and the line y = -x is the coordinates (x, -y).
So reflected across the x-axis: f(x) → -f(x),
⇒ (x,y) → (x , -y)
"A" is a y-axis reflection, "B" and "C" are basically points shifting to a different region of the graph, and "D" is a mirror reflection on the x-axis.
Hence, graph (D) shows a reflection across the x-axis.
To learn more about the transformations click here :
brainly.com/question/28029674
#SPJ5
Two friends shared 1/3 of water equally how much water did each friend get
Answer:
1/6
Step-by-step explanation:
1/3 equals 2/6 then two friends share the 2/6 and it's 1/6
Hope this helped :)
The speed of an object can be found by dividing the distance traveled by the time it took. It takes Jamal $36$ seconds to skate once around a $500\text{ }\text{m}$ rink. If it takes Tory $40$ seconds to skate the same distance, what is the difference in their speeds?
Answer:
Difference = 13.9 m/s
Step-by-step explanation:
Speed of an object = distance traveled/time taken
Jamal takes 36 seconds to skate 500 m rink. Let his speed is v. So,
[tex]v=\dfrac{500\ m}{36\ s}\\\\=13.89\ m/s[/tex]
Tory takes 40 seconds to skate 500 m rink. Let his speed is v'. So,
[tex]v'=\dfrac{500\ m}{40\ s}\\\\=12.5\ m/s[/tex]
The difference in their speeds,
D = 13.89 - 12.5
= 1.39 m/s
Hence, the difference in their speeds is 13.9 m/s.
i need to know the answers to these 2 questions ASAP. will name brainliest
does the flag have rotational symmetry?
Answer:
The triskelion appearing on the Isle of Man flag has rotational symmetry because it appears the same when rotated by one third of a full turn about its center. Because its appearance is identical in three distinct orientations, its rotational symmetry is three-fold.
the answer is first one
11x11x11x11x11=
Enter the expression using exponents
Answer:
11^5
Step-by-step explanation:
you count how many 11's there are
Which is an example of adjacent angles?
Answer:
the correct answer is B. 2 & 4
Answer:
2 and 4
Step-by-step explanation:
This is because adjacent angles are next to each other.
A car traveled 261 miles on 9 gallons of gas. The same car also traveled 145 miles on 5 gallons of gas. If the ordered pairs for this relationship are (gallons,
distance), what is the slope of the line through these two ordered pairs?
Answer:
slope = 29
Step-by-step explanation:
Given that
the ordered pairs for this relationship are (gallons, distance)
it means on coordinate plane
x represents gallons
y represents distance
thus,
two point on plane will be
A car traveled 261 miles on 9 gallons of gas
miles = 261 ---let it be represented by x1
gallons = 9---let it be represented by y1
(x1,y1) = (9,261)
miles = 145 ---let it be represented by x2
gallons = 5---let it be represented by y2
(x2,y2) = (5,145)
slope of two points (x1,y1) and (x2,y2) is given by
slope = m = (y2-y1)/(x2-x1)
thus, slope of the above ordered pair
m = (145-261)/(5-9) = -116/-4 = 29
Thus, slope of the line through these two ordered pairs is 29.
I went to Wegmans wit
$12. How many TV dinners
can I get if each one costs
$1.50
Answer:
8
Step-by-step explanation:
Answer: 8
Step-by-step explanation:
12/1.50=8 TV dinners
How many variables are in this expression? y + 5x - 10
Answer:
2
Y and X are numerical and algebraic values to substitute missing numbers or shorten equations.
Can some one explain me
Answer:
the equation formula is y=mx+c
Step-by-step explanation:
the slope also represent a gradient
while the y intercept form equation is
x, o
o, y
Given the figure below, find the values of x and z.
Answer: z = 107; x = 5
Step-by-step explanation:
z = 107 They are vertically opposite angles, which they are equal.
z + (6x + 43) = 180
1. Plug in 107 for z.
107 + (6x + 43) = 180
2. Get rid of parentheses.
107 + 6x + 43 = 180
3. Sum up the number in the left sides.
6x + 150 = 180
4. Subtract 150 from both sides.
6x = 30
5. Divided 6 from both sides.
x = 5
Which equation could be solved using this application of the quadratic formula? PLS HELP
Answer:
d) [tex]2x^2+12x+4=13[/tex]
Step-by-step explanation:
Quadratic formula:
[tex]x=\dfrac{-b\pm\sqrt{b^2-4ac} }{2a}[/tex]
The quadratic formula can be used to solve a quadratic equation in the form [tex]ax^2+bx+c=0[/tex]
From inspection of the given quadratic formula:
a = 2b = 12c = -9Therefore, plugging these values into the general form of the quadratic equation:
[tex]2x^2+12x-9=0[/tex]
If we add 13 to both sides we get:
[tex]2x^2+12x+4=13[/tex]
Answer: D
Step-by-step explanation:
The quadratic formula helps you find the roots of a quadratic function, specifically where the function equals zero. In order for an equation to match the use of the quadratic formula shown, the value of 'b' must be +12. It also demands that 'a' must be +2, and 'c' must be -9. Answer D has all these prerequisites.
CAN SOMEONE HELP ME What is the factored form of x2 – x – 2?
(x-2)(x+1) is the answer to your question
3. Convert the following measurements:
a. 16 mg =
g|
b. 4.7 kg =
g
c. 12,345 g =
kg
d. 2 g =
mg
Please explain it I’m
Slow
Noah orders an extra-large pizza. It costs $12.49 for the pizza plus $1.50 for each topping. He olders an extra-large pizza with t toppings that costs a total of d dollars. Select all of the equations that represent the relationship between the number of toppings t and total cost d of the pizza with t toppings.
Answer:
B and E
Step-by-step explanation:
What is the answer to this?
To find the y-intercept substitute x as 0
[tex]y = 1 \times {0}^{2} + 7 \times 0 - 5[/tex]
[tex]y = 1 \times 0 + 0 - 5[/tex]
[tex]y = 0 + 0 - 5[/tex]
[tex]y = - 5[/tex]
Thus, The y-intercept is -5...~We know that:
The y-intercept of an equation is the constant. Constants are the numerals in the equation.Finding the y-intercept.
In the equation provided, we can see only one constant.
=> y = 1x² + 7x - 5Thus, the y-intercept is -5.
What is the value of the expression 6z2+2z+10 when z=3?
Hi there! Hope this helps, and if it does, please mark brainliest!
Answer:
346
Step-by-step explanation:
6z2+2z+10
(6 x 3)^2 + 2 x 3 + 10
18^2 + 12 + 10
324 + 22
346