9514 1404 393
Answer:
150
Step-by-step explanation:
The increase is by the factor 5/3, so the increased number is ...
90×(5/3) = 150
90 increased in the ratio 5 : 3 is 150.
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
Let f(x) =
= -x + 1 and find f(-4).
Select the correct response:
f(-4) = -7
of(-4) = 5
o f(-4) = -5
o f(-4)=7
Answer:
o f(-4)=7
Step-by-step explanation:
Sana makatulong:,-)
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
PLZ HELP!!! I don't understand.
Answer:
8) false
9) true
10) true
11) false
Step-by-step explanation:
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.
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
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)
...
2. Dianna can carry up to 15 lbs in her backpack.
Her lunch weighs 1 lb, her gym shoes weigh
2 lbs, and her books weigh 1.5 lbs each. Which
inequality shows how many books Dianna can
carry in her bag if she has her lunch and gym
shoes?
O A. 3 + 1.5b < 15
B. 1.5 + 3b < 15
C. 3 + 1.5b > 15
D. 1.5 + 3b < 15
Answer:
Answer is A. 3 + 1.5 b < 15.
Step-by-step explanation:
Look at the problem carefully. Variable (b) represents books, and it states that the books weigh 1.5 lbs each. So you add her lunch (1 lb) and her shoes (2 lbs) to get 3 lbs. Once you add it together, it's less than (<) 15 lbs.
I tried to make this as understandable as possible, hope it helps.
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
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
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
The value of x is
and the value of y is
Answer:
Y = 50 degrees, X = 60 degrees
Step-by-step explanation:
Since we know that the sum of angles in a triangle is 180 degrees, we can find x easily. We already know that the other two angles are 50 and 70, which adds up to 120, and 180 - 120 is equal to 60 degrees, meaning that x is equal to 60 degrees. Next, to find the measure of y, we first know that the sum of angles on a line is equal to 180 degrees, and if we find the other angle on the line by subtracting 60 + 50 from 180, we can find y. 180 - (60 + 50) = 70 degrees, and since 70 + x + y = 180 and x = 60, we know that x = 180 - (70 + 60) = 50. Therefore, y is equal to 50 degrees.
Answer:
Step-by-step explanation:
The Secant of angle A is -5/4. a) What quadrants could angle A be in? b) Determine the measure(s) of angle A
Answer:
a) 2nd and 3rd quadrant
b) 143.13° and 36.87°
Step-by-step explanation:
Secant A = 1/cosecant A
sec A = 1/cosA
If Sec A = -5/4
Cos A = 1/(-5/4)
CosA = -4/5
Since cos A is a negative values, hence the angle A will be in the 2nd and 3rd quadrant
b) If CosA = -4/5
A = arccos(-0.8)
A = 143.13
A = 180 - 143.13
A = 36.87
Hence the measures of angle A are 143.13° and 36.87°
The top surface of a desk composed of two rectangles some side lengths of the top surface of Des garcons what is the area of the top surface of the desk in square feet
Answer:
The area of the top surface is: 8.625ft^2
Step-by-step explanation:
Given
See attachment for top surface
Required
Determine the surface area of the top surface
From the attachment, the top surface has the following shapes and dimensions.
1) Rectangle: 1.5ft by 2.5ft
2) Rectangle: 2.5ft by 1.5ft
3) Triangle: Base and Height = 1.5ft
So, the area of the top surface is:
Area = Area of [Rectangle + Rectangle + Triangle]
[tex]Area= 1.5 * 2.5 + 2.5 * 1.5 + 0.5 * 1.5 * 1.5[/tex]
[tex]Area= 8.625ft^2[/tex]
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]
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
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
10. Four friends are competing in an obstacle course.
The number of miles that each has finished so far is
shown in the table.
Dana
Emily
Lydia
Taylor
1.33
4.
7
0.615
5
Ā
Convert the miles Taylor has completed to a decimal.
Record your answer on the grid.
Answer:
1.25 miles
Step-by-step explanation:
5/4=1.25
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.
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
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
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
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
Find the coordinates of the other endpoint if the midpoint is M(8, 2) and the other endpoint is P(5, 6).
(6.5, 4)
(11, -2)
(21, 10)
Answer:
(6.5,4)
Step-by-step explanation:
First write the formula of finding the midpoint...
step 1: M=(x1+x2÷2,y1+y2÷2)
step 2:substitute for coordinates x1,x2,y1 and y2
step 3:(8+5÷2,2+6÷2)
step 4:(13÷2,8÷2)
then you get the answer...which is
step 5: (6.5,4)
im done
Answer:
(6.5,4)
Step-by-step explanation:
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 :)
ergrgsgegfgewfeg
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]
When you use the distance formula, you are building a right triangle, the of which goes between two given points.
O A. base
O B. hypotenuse
O C. angle
D. leg
Answer:
the correct answer is B. hypotenuse
Write an equation of the line in slope-intercept form.
2. The slope is 1; the y-intercept is
0.
3. The slope is -7; the y-intercept is
WIN
4. The slope is -1; the y-intercept is 3
5. The slope is – 2; the y-intercept is 0
6. The slope is – 3; the y-intercept is
7. The slope is 4; the y-intrcept s-6
Answer:
You would just use y = mx + b as a reference-
Step-by-step explanation:
y = mx + b
The m would be the slope and the b would be the intercept.
The radius of a circle is 4.9 in. Find the circumference
to the nearest tenth.
Answer:
C = 30.8
Step-by-step explanation:
Circumference of a Circle:
C = 2πr
C = 2(3.14)(4.9)
C = 30.772
C = 30.8
PLEASE HELP ASAP THANK YOUUUU
Answer: C. The answer i got was C
Answer: 904.32 cm^3
Step-by-step explanation:
The formula to finding the volume of a sphere is (V=4/3(3.14)r^3
So in this case it would be (V=4/3(3.14)(6)^3
The radius is half the diameter so that's how I got 6.
The answer after multiplying everything would be 904.32