Answers
9514 1404 393
Answer:
796.5 cm³
Step-by-step explanation:
The volume of a pyramid is given by the formula ...
V = 1/3Bh
where B is the area of the base, and h is the height.
Here, the base is a square, so its area is the square of the side length:
B = (15 cm)² = 225 cm²
Then the volume is ...
V = (1/3)(225 cm²)(10.62 cm) = 796.5 cm³
Related Questions
May someone please help me with this :)
Answers
Answer:
14.3 yd
Step-by-step explanation:
apply the pythagorean Theorem formula:
= sqrt(14^2 +3^2)
= sqrt(205)
roughly 14.3 yd
Keith needs to build a bridge to go across a pond. He has been able to collect the following measurements. About how long does this bridge need to be
Answers
Answer:
[tex]\Huge\boxed{11.9}[/tex]
Step-by-step explanation:
Hello There!
Basic Concepts
Geometry
Once again we are going to need to use trigonometric ratios to solve for a missing side length (the length of the bridge)
Here are the trigonometric ratios
Sine - Opposite over Hypotenuse
Cosine - Adjacent over Hypotenuse
Tangent - Opposite over Adjacent
For the angle that has a measure of 50 degrees
we are given its adjacent side length and we need to find its opposite
When working with the opposite side length and adjacent side length we use the trigonometric ratio tangent
Knowing which trigonometric ratio we are going to use we have to create an equation
Remember tan = opposite over adjacent
So we plug in the given information and solve for the missing information ( In this case the opposite side length)
[tex]tan(50)=\frac{x}{10}[/tex]
Basic Algebra
Now we solve for x
Like always we want to isolate the variable
First we want to get rid of the 10
x is being divided by 10 and the inverse of division is multiplication
So we multiply each side by 10
[tex]tan50*10=10tan50\\\frac{x}{10} *10=x\\[/tex]
now we have
[tex]10tan50=x\\[/tex]
finally we plug in 10tan50 into a calculator to get the value of x
we get that x = 11.91753594
Our last step is to round to the nearest tenth
We can conclude that the answer is 11.9
The bridge needs to be 11.92 feet long by calculating the tangent of the given angle.
What is tangent of an angle?Tangent of an angle in a right-angled triangle is the ratio of the height to the base of the triangle.
Let, the bridge is x ft. long.
Therefore, tan 50° = [tex]\frac{x}{10}[/tex].
⇒ x = 10 × tan 50°
⇒ x = 10 × 1.192
⇒ x = 11.92
Therefore, the bridge is 11.92 ft. long.
Learn more about tangent of angle here: https://brainly.com/question/14346186
#Tag #SPJ2
Graph the equation y = 4x − 5 using slope and y−intercept.
on a graph
Answers
The picture below is an image of what the graph should look like. Hope this helps!
The light from the Cape Florida Lighthouse in Key Biscayne is visible for a distance of 15 mi. If the beam of light sweeps in an arc of 270°, what is the area covered by the beam?
Answers
Answer:
Area covered by beam = 530 mi² (Approx.)
Step-by-step explanation:
Given:
Radius = 15 mi
Arc angle = 270°
Find:
Area covered by beam
Computation:
Area of sector = [θ/360][π][r²]
Area covered by beam = [270/360][22/7][15²]
Area covered by beam = [0.75][3.1428][225]
Area covered by beam = 530 mi² (Approx.)
a
2.1 cm
2.9 cm
Find the value of a.
Answers
Step-by-step explanation:
[tex]a = \sqrt{ {2.9}^{2} - {2.1}^{2} } = \\ = \sqrt{8.41 -4.41 } = \\ \sqrt{4 } = 2[/tex]
Help please! I know this is easy but I don’t know what to do!
Answers
Answer:
b
Step-by-step explanation:
Could 85, 13 and 84 be the side length of a right triangle?
Answers
Answer:
No because the side lengths won't equal the hypotenuse
Step-by-step explanation:
85^2 + 13^2 ≠ 84^2
Micki bought 4 gallons of apple cider. How many quarts did she buy?
Answers
Answer:
16
Step-by-step explanation:
There are four quarts in a gallon. 4x4=16.
Answer:
4 quarts per gallon
4 quarts times 4 gallons= 16 quarts
HELP ME!!! I WILL GIVE BRAINLIEST AND 15 POINTS!!!!!!!!
Evaluate each expression for n = 3, p = 10.5, t = -2, y = 4.
Solve
1.) 3n + 2t
2.) ny - 6 + p
Answers
9-4
5
2) (3)(4)-6+10.5
12-6+10.5
6+10.5
16.5
Therefore, the solution to #1 is 5, and the solution to #2 is 16.5.
2. 16.5
Plug in the values and solve.
Renaldo says that parallel lines intersect a circle at opposite
ends of the same diameter. If a line is tangent to a circle, then
the radius of the circle is perpendicular to the line at the point of
tangency. Does this fact support Renaldo's conjecture? Explain
Answers
Answer:
Yes
Step-by-step explanation:
Noted that the claim only stands true IF BOTH OF THE LINES ARE TANGENT TO THE CIRCLE. [If one line cut the circle at 2 distinct points, the claim is false]
This can be explained with tangent properties. Consider a circle with radius r, by tangent properties, then the radius of the circle is perpendicular to the line at the point of tangency as stated in the question. Since the two lines are parallel, we can bring back up parallel lines theory, the alternative angles of the two tangent to the circle is equal to 90.
Try to draw a line linking the two points of tangent passing through the radius, it is the diameter of the circle, thus parallel lines intersect a circle at opposite ends of the same diameter.
help with my khan academy assignment please
Answers
hope it helps!
Melissa has a total of $250 in her savigns account. She started with $110 and then earned the rest of her savings by babysitting. Melissa charges $7 per hour. Write an equation to represent the situation and determine the number of hours (h) she babysat last week.
Answers
Answer:
Number of hours= 20 hours
Step-by-step explanation:
Giving the following information:
Net savings (babysitting)= 250 - 110= $140
Rate per hour= $7
To calculate the number of hours that Melissa worked as a babysitter, we need to use the following formula:
Number of hours= net savings / rate per hour
Number of hours= 140 / 7
Number of hours= 20 hours
Ahab wants to buy a garden statue that is 10% off. The original price
is $24.02.
What is amount of discount (nearest hundredth)?
Answer quick pls :,)
Answers
Answer:
$21.62
Step-by-step explanation:
Answer:
14.02
Step-by-step explanation:
first subtract 10 from 24 u got the answer easy
Which could NOT be the length of the unknown side of the triangle?
Answers
Answer:
5
Step-by-step explanation:
One leg of a right triangle is 7 and the hypotenuse is 10. What is the length of the
other leg?
Answers
Answer:
L = 7.14
Step-by-step explanation:
using the Pythagorean theorem:
L² = 10² - 7²
L² = 100 - 49= 51
L = 7.14
Answer:
7.14
Step-by-step explanation:
to answer this you need to use pythagoras theorem and that is A²+B²=c²
in this case C²-A²=B²
10²=100
7²=49
100-49=51
then you need to square root 51 which gives your answer 7.14
find the area of the composite figure 12 yd height 10 yd base
Answers
Answer:
120 yd^2
Step-by-step explanation:
1. 12x10= 120
2. 120 yd ^2
100 points! Please help! If the total perimeter of the triangle is 5x 3+ 4x 2− x – 3, what is the length of the third side of the triangle? (This will require subtraction) Please show steps
Answers
Answer:
What is the length of the third side of the triangle? The Answer Is -9
Step-by-step explanation:
Always use your calculator and type in your equation " 5 x 3 + 4x 2− x – 3" i think this helped but i have no idea good luck though
If the ratio of radii of two spheres is 4:7, find the ratio of their volumes.
Answers
Answer:
volume is equal to ratio
Answer:
This is your answer. If I'm right so,
Please mark me as brainliest. thanks!!!
YALL HELP!!! YALL HELP!!! YALL HELP!!! YALL HELP!!! YALL HELP!!!
Answers
Answer:
Reflection
Step-by-step explanation:
(x, y) --> (x, -y) is a reflection over the x-axis
if x = 5, find the value of x²
Answers
Answer:
25
Step-by-step explanation:
x² is actually the same as x×x, which in this case, 5×5 = 25
Answer:
25Step-by-step explanation:
x² = 5²
5² = 5 times 5 =
25_____________________
#IndonesianPride - kexcvi
will give brainliest! question in pic! help asapp!
Answers
Answer: D
Step-by-step explanation:
Answer:
[tex]6x^{2}+10x-12[/tex]
Step-by-step explanation:
-18x+2x-15x+23x-12x-4x
Combine like terms
Answers
Answer:
-24x
Step-by-step explanation:
Combining them all leads you to get -24x.
30% of what number is 7.5??
Answers
Answer:
x = 25
Step-by-step explanation:
the question can be given as x * .3 = 7.5, or rearanged into
7.5/0.3 = x
75/3 = x if you multiple the fraction by 10/10
x = 25 in this case
Ok so my mom is verbally abusive towards me and makes me cry almost everyday. I really want to run away but I have cameras all sides and some inside and a tracker on my phone that can read texts and show my precise location. I can’t go out of the window because my room has a sensor and I don’t have a roof slope like most of y’all do. I could go out of the kitchen window but one of the backyard cameras will see me jump the fence and leave. what do you think i should do? And what to pack because if I run away today I need to know what to pack and advice.
Answers
Answer:
turn on air plane mode then connect to the wifi or use vpn
Step-by-step explanation:
Please help me ASAAAPPPP I need help rn !
Answers
Answer:
1099 in.²
Step-by-step explanation:
2πr²+2πrh
2×3.14×5×5+2×3.14×5×30
157+942
1099 in.²
Answer:
1099 in. ²
Step-by-step explanation:
because of how its measured
IM MARKING BRAINLIEST
Valerie replaces one car alternator every 1.75 hours. She takes a 1-hour lunch break.
Which equation can be used to determine how many alternators she replaces in 8 hours?
Multiple choice question.
A)
1.75w−1=8
B)
1.75w+1=8
C)
18w−1=8
D)
18w+1=8
Answers
Answer:
A)
1.75w−1=8
Step-by-step explanation:
A bag contains 3 white balls, 4 green balls, and 5 red balls. A ball is drawn at random. How many total number of outcomes are there?
Answers
Answer:
12
Step-by-step explanation:
5+4+3 = 12
Answer:
12 is the total outcome.......
Step-by-step explanation:
3+4+5=12 is the ans.....
hope this will help u.....
The number of eggs in the refrigerator e decreased by 9 equals 19. Enter an equation to represent the situation.
Answers
Answer:
e - 9 = 19
Step-by-step explanation:
Hope that helps!
Answer:
x-9= 19
x= 19+9
x= 28
to check if answer is correct say
28 - 9 = 19
so there are 28 eggs in the refrigerator
I’ll really appreciate it if you help me out with this one .
Answers
Answer:
Linear Function
Step-by-step explanation:
Every time x goes down by 2 y drops by 4. This represents a pattern and has a definitive slope. (It has a constant rate of change.)
Pls help me I need this done . Look at picture . What is the measure of..
Answers
The anwer is 62 degrees
Step-by-step explanation:
angle x and the angle with a measure of 62 degrees are alternate exterior angles therefore they are congruent