Answer:
4
Step-by-step explanation:
2(8)-3(4)
16-12
4
When a tree 8m high casts a shadow 3m long, how long is a shadow cast by a person 2m tall?
Answer:
3/4 meters
Step-by-step explanation:
We can use ratios to solve
8m 2 m
------- = -----------
3m x m
Using cross products
8*x = 3*2
Divide each side by 8
8x/8 = 6/8
3/4 meters
Answer:
x = 3/4 m
Step-by-step explanation:
Construct two similar right triangles that share an angle of elevation. The two vertical sides represent the heights of the person and the tree and are 2 m ad 8 m respectively. The two horizontal sides represent the shadow cast by the person and that cast by the tree, respectively. Because the triangles are similar, we can write the following equation of ratios:
8 m 3 m
--------- = --------
2 m x
... where x is the length of the shadow cast by the person.
Cross multiplying, we get:
8x = 6m, or x = 6/8 m, or x = 3/4 m
What is the formula for the volume of a prism?
What is the formula for the volume of a prism?
Answer:
Step-by-step explanation:
Base area * height
Answer:
i think that the answer is BH or Base area × Hight
Express the distance 440,000,000 meters using scientific notation in meters and then in millimeters. The distance 440,000,000 meters is expressed as how many meters in scientific notation.
Two companies rent boats by the hour. The total cost, in dollars, c, depends on the number of hours, h.
The equations that represent the rental rates of both companies are shown.
Company A: c=15h + 20
Company B: c= 20h
• A person rents a boat from Company A for h hours and realizes they would have paid the same
amount if they had rented the boat from Company B. How many hours, h, did the person rent the
boat? Explain or show each step of your work
Verify that your solution for h hours of renting the boat is the same cost, c, for each company
.
Answer:
A(35)
B(35_20=15
Step-by-step explanation:
same as all above
What is the area, in square inches, of the trapezoid below?
Answer:
96.22 inches squared
Step-by-step explanation:
The area of the triangle on the right is 28.56
The area of the triangle on the left is 28.9
The are of the rectangle in the middle is 38.76
When you add them together you get 96.22 inches squared.
Does 12,5,13 make a right triangle?
Answer:
YEs
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
Yes, a right triangle can have side lengths 5, 12, and 13.
can i get brainleist plz
Hello can someone pls help me (10 points)
Answer:
x = 7
Step-by-step explanation:
2x + 11 = 25
subtract 11
2x = 14
divide by two
x = 7
Answer: i.d.k
Step-by-step explanation: thanks
2. The volume of a cylinder is 95 cubic centimeters. Which equation
can be used to find h, the height of the cylinderę Circle the correct
answer.
Given:
The volume of a cylinder is 95 cubic centimetres.
To find:
The equation that can be used to find h, the height of the cylinder.
Solution:
We know that, the volume of a cylinder is:
[tex]V=\pi r^2h[/tex]
We know that the base of the cylinder is a circle and the area of the circle is [tex]\pi r^2[/tex]. So, the base area of the cylinder is [tex]B=\pi r^2[/tex].
Now, volume of the cylinder is
[tex]V=Bh[/tex]
The volume of a cylinder is 95 cubic centimetres.
[tex]95=Bh[/tex]
[tex]\dfrac{95}{B}=h[/tex]
[tex]h=\dfrac{95}{B}[/tex]
Where B is the base area of the cylinder.
Therefore, the correct option is G.
Please help 10 points :)
Answer:
median: 6
range: 7
mean: 5.4
Step-by-step explanation:
median is the middle value
range is the highest value minus the smallest value
mean is the total of all values divided by the total data values (174÷32, in this problem)
if 4.5kg sugar cost R36 what will 2.5kg cost
Answer:
Step-by-step explanation:
Find the unit rate of Sugar. Then find the cost of 2.5 Kg sugar
1 kg sugar =36 ÷ 4.5
[tex]= \frac{36*10}{4.5*10}= \frac{360}{45}\\\\= 8[/tex]
2.5 kg of sugar= 2.5 * 8 = 20.0 = R 20
Answer:
Kg Rupee
4.5 = 36
2.5 = ?
Therefore, 2.5*36/4.5
Therefore, 25*36*10/45*10
Therefore, 25*36/45
Therefore, 5*5*36/9*5
Therefore, 5*36/9
Therefore, 5*3*2*3*2/3*3
Therefore, 5*2*2
Therefore, 10*2
Therefore, 20
2.5 kg =20 Rupees
An airplane descends 1.6 miles to an elevation of 8.05 miles. Find the elevation of the plane before its descent.
Answer:
9.65 miles
Step-by-step explanation:
Given:
Final elevation = 8.05 miles
Change in elevation = 1.6 miles
Let Initial elevation which is the elevation before descent = x
Initial elevation - change in = final elevation
(-ve) sign because it was a descent
x - 1.6 = 8.05
x = 8.05 + 1.6
x = 9.65 miles
Hence, elevation before descent is 9.65 miles
On Monday, Tuesday, and Wednesday, Stephen practiced the piano from 4:15
P.M. until 5:45 P.M. In total, how long did he practice during those three days?
hr
min
Answer:
from 4:15 to 5:45 is 90 mins, or 1 hour and 30 mins. if you add 1 hour, 30 mins + 1 hour, 30 mins + 1 hour, 30 mins you will get 3 hours, 90 mins. this becomes 4 hours and 30 mins.
Step-by-step explanation:
Answer:
4.5 stup1dhfalih;lhs;iyqwrpo8tpy vwo;yprwtywouyt oyweoiywerioy2408t479569253870349704937084585234843684304638348643983 46439643964389435 836295
Step-by-step explanation:
pls help I am confused
Answer:
100 degrees
Step-by-step explanation:
because vertically opposite
Answer:
∡x°=100°
Step-by-step explanation:
100° and x° are vertical angles, so they are congruent to each other. Therefore, the measure of x° is also 100°
Help please i need it thanks.
Answer:
x is less than or equal to 7
Step-by-step explanation:
Answer quick pls!!!!
HELP PLS ILL GIVE U 30 POINTS IF U ANSWER THIS PLEASE HELP
Answer:
your answer will be Option A.$3,207.40
Step-by-step explanation:
hope it helps...
have a great day!!
Answer:
A. $3,207.40
Step-by-step explanation:
Hope this helps
very
ich
10. Which is an example of a unit rate?
A $25 for 5 hours
B 100 miles in 3 hours
src 1 book every 2 days
D 20 pages per minute
Answer quick plzzz
Answer:
d
Step-by-step explanation:
hope this helps!
have a good day :)
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A regular octagon is an eight-sided polygon with side lengths that are all equal. All three octagons are scale drawings of each other. Use the chart and the side lengths to compute each scale factor as a percent. How can we check our answers
Answer:
1.) 1.12/10= 1 2/10= 1.2% 10*1.2%=12
2.) 8/10=0.80% 10*0.80=8
3.)10/12=0.83% 12*0.83=10
%*whole
Granny needs to paint a Loge made using two right triangles the dimensions Of the loge are shown below what is the difference between the area of the large triangle in the area of a small triangle
Answer:
The difference is
Step-by-step explanation:
Given
Large triangle
[tex]Base = 5cm; Height=9cm[/tex]
Small triangle
[tex]Base = 2cm; Height=6cm[/tex]
See attachment for logo
Required
The difference in their areas
Area is calculated as:
[tex]Area = 0.5 * base * height[/tex]
For the large triangle
[tex]Area = 0.5 * 5cm * 9cm[/tex]
[tex]Area = 22.5cm^2[/tex]
For the small triangle
[tex]Area = 0.5 * 2cm * 6cm[/tex]
[tex]Area = 6cm^2[/tex]
The difference (d) is calculated as:
[tex]d = 22.5cm^2 - 6cm^2[/tex]
[tex]d = 16.5cm^2[/tex]
6: What is the volume of a cylinder
with a diameter of 10 feet and a
height of 8 feet? Use 3.14 for 1.
cubic feet
Answer: 628 cubic feet
Step-by-step explanation: First, find the area of the circle. Using the formula "TTr^2", you can find the area of the circle. Since the diameter is given, and not the radius, divide 10 by 2, and it gives you 5. Now, use the formula. 5 x 5 = 25, and then multiply it by 3.14 which gives you 78.5. Now that we have found the area of the circle, multiply the area by 8 to find the volume of the cylinder. 78.5 x 8 is 628 cubic feet, and that is the volume of the cylinder.
A semicircle with a diameter of 8 meters is shown. A smaller semicircle with a diameter of 4 meters is cut out of the larger semicircle. A rectangle with side lengths of 2 meters and 5 meters is connected to the semicircle.
What is the area of the composite figure?
(6π + 10) m2
(10π + 10) m2
(12π + 10) m2
(16π + 10) m2
Answer:
here
Step-by-step explanation:
Answer:
A) (6π + 10) m2
Step-by-step explanation:
Matthew walks Ask Your Teacher mile to Zack's house. Which fraction is equivalent to Ask Your Teacher?
Question:
Matthew walks 4/10 to mile to Zack's house. Which fraction is equivalent to 4/10?
Answer:
[tex]Fraction = \frac{2}{5}[/tex]
Step-by-step explanation:
Given
[tex]Fraction = \frac{4}{10}[/tex]
Required
Determine its equivalent
To do this, we simplify the fraction
Divide by 2/2
[tex]Fraction = \frac{4/2}{10/2}[/tex]
[tex]Fraction = \frac{2}{5}[/tex]
Hence, 2/5 is an equivalent fraction
A special type of bar graph in which data are grouped into intervals of equal width
first two letters hi
Answer:
histogram
Hope that helps.
The sum of the 1st nth term gp is 127.the sum of the reciprocal is 127/64,if the 1st term is 1.find n and the common ratio
Answer:
Ratio (r) = 2
n = 7
Step-by-step explanation:
The formula for the sum of the nth term of a G.P is given as:
Sn = a(1-r^n)/(1-r)
Where n = Number of terms
r = Common ratio
The sum of the 1st nth term gp is 127.
Hence:
127 = 1(1-r^n)/(1-r)
The sum of the reciprocal is 127/64
The formula is inverted , hence:
Sn = 1/a(1-r^n)/(1-r)
127/64 = r^(1-n)(1-r^n)/(1-r)
Hence:
1/64 = r^(1-n)
r^(n-1) = 64
r^(n-1) = 2⁶
Hence:
r = 2
Solving for n
n - 1 = 6
n = 6 + 1
n = 7
Therefore:
r = 2
n = 7
what is the volume of the bench in cub feet?
Split it into two rectangles:
6 x 2 x 2 = 24
3 x 2 x 2 = 12
Now add:
24 + 23 = 36 cubic feet
HELP NEEDED ASAP HELP ME PLZ
Answer:
3
Step-by-step explanation:
105/7hrs
15/1hr
15/60min
0.25/per minute
0.25*12
= 3
Write a SIMPLIFIED inequality for x that would give a rectangle with a length of 4 meters and a width of x+7 meters an area of more than 128 meters squared.
Answer:
128 > 4*(x + 7)
Step-by-step explanation:
Given the following data;
Length = 4 meters
Width = x + 7 meters
Area = 128 m²
Mathematically, the area of a rectangle is given by the formula;
Area of rectangle = length * width
Substituting into the formula, we have;
128 > 4*(x + 7)
128 > 4x + 28
128 - 28 > 4x
100 > 4x
Dividing both sides by 4, we have;
25 > x
Evaluate 2p-nm-4, if m=3, p=15, and
n=5.
Step-by-step explanation:
given m = 3, p = 15 and n = 5,
[tex]2p - nm - 4 \\ = 2(15) - (5)(3) - 4 \\ = 30 - 15 - 4 \\ = 15 - 4 \\ = 11[/tex]
What is the slope of the line that
passes through these two points?
(-1, 4)
(2, 2)
slope
[?
Answer:
-2/3
Step-by-step explanation:
2-4 / 2-(-1)
2-4 / 2+1
-2/3
a first number plus twice a second number is 8 twice the first number plus the second totals 25
Answer:
The first number is 14
The second number is -3
Step-by-step explanation:
x + 2y = 8
2x + y = 25
Solving simultaneously,
2x + 4y = 16
2x + y = 25
On subtracting, we have
3y = -9
y = -3
Going to substitute for y, we have
x + 2(-3) = 8
x - 6 = 8
x = 14