Answer:
11
Step-by-step explanation:
the sides are 11 and 5 and the bottom is 11
0.1z = 0.2(z + 2)
z=?????????????????
Answer:
-4
Step-by-step explanation:
0.1z = 0.2(z + 2)
0.1z = 0.2z + 0.4
-0.1z = 0.4
z = -4
Answer:
z = -4
Step-by-step explanation:
Distributive Property: a(b + c) = ab + ac
1. Distribute
0.1z = 0.2(z) + 0.2(2)
0.1z = 0.2z + 0.4
2. Subtract 0.2z from both sides
0.1z - 0.2z = 0.2z - 0.2z + 0.4
-0.1z = 0.4
3. Divide both sides by -0.1 to isolate the variable
-0.1z ÷ -0.1 = 0.4 ÷ -0.1
z = -4
Learn more about the distributive property here:
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Divide 1440g in the raito 1:7
Answer:
206 is the answer
Step-by-step explanation:
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The distance between two cities on a map is 7.5 centimeters. The map uses a scale in which 1 centimeter represents 15 kilometers. What is the actual distance between these two cities in kilometers?
Multiply total centimeters by kilometers per centimeters
7.5 x 15 = 112.5
Answer: 112.5 kilometers
Answer:
112.5 kilometers between the 2 cities
Step-by-step explanation:
sounds fake but in miles its 69.9
hi I need help pls explain
x=81
Step-by-step explanation:
[tex] → \sf \frac{65 + 73 + 76 + x}{4} = 73.75 \\ [/tex]
[tex]→ \sf65 + 73 + 76 + x = 295 \\[/tex]
[tex]→ \sf x = 81[/tex]
Using polar coordinates, evaluate the integral which gives the area which lies in the first quadrant between the circles x2 y2=64 and x2−8x y2=0.
You mention circles, so I assume the missing symbols are plus signs.
The first circle has equation x² + y² = 64 = 8², so it's centered at the origin and has radius 8. In polar coordinates, we take x = r cos(θ) and y = r sin(θ). Then this circle's equation is
(r cos(θ))² + (r sin(θ))² = 64
r² (cos²(θ) + sin²(θ)) = 8²
r = 8
Complete the square in the second circle's equation to determine its center and radius:
x² - 8x + y² = x² - 8x + 16 + y² = 16 ⇒ (x - 4)² + y² = 4²
so the second circle is centered at (4, 0) with radius 4. In polar coordinates, this equation becomes
(r cos(θ) - 4)² + (r sin(θ))² = 16
r² (cos²(θ) + sin²(θ)) - 8r cos(θ) + 16 = 16
r² - 8r cos(θ) = 0
r - 8 cos(θ) = 0
r = 8 cos(θ)
Determine where these two circles intersect:
8 = 8 cos(θ)
cos(θ) = 1
θ = arccos(1) + 2nπ
θ = 2nπ
where n is any integer. So both circles intersect once at (8, 0), which means they are tangent to one another, and since the second circle's radius is smaller, it must lie completely within the larger one.
The region between the two circles is the set
R = {(r, θ) : 0 ≤ θ ≤ π/2 and 8 cos(θ) ≤ r ≤ 8}
The area of R is given by the double integral,
[tex]\displaystyle \iint_R dA = \int_0^{\frac\pi2} \int_{8\cos(\theta)}^8 r \, dr \, d\theta[/tex]
or the single integral
[tex]\displaystyle \iint_R dA = \frac12 \int_0^{\frac\pi2} \left(64 - 64\cos^2(\theta)\right) \, d\theta[/tex]
Recall the half-angle identity for cosine:
cos²(x/2) = (1 + cos(x))/2
Then the area is
[tex]\displaystyle \iint_R dA = 16 \int_0^{\frac\pi2} \left(1 - \cos(2\theta)\right) \, d\theta[/tex]
[tex]\displaystyle \iint_R dA = 16 \left(\theta - \frac12 \sin(2\theta)\right) \bigg|_0^{\frac\pi2}[/tex]
[tex]\displaystyle \iint_R dA = \boxed{8\pi}[/tex]
please help (2+2^2 divided by 4+3
Step-by-step explanation:
2+2 = 4
4^2 = 16
16/4 = 4
4 + 3 = 7
Answer:
4.5
Step-by-step explanation:
(2+2^2) ÷ 4+3
I will use PEMDAS (parenthesis, exponents, multiplication, division, addition, and subtraction)
Calculate 2 to the power of 2 and get 4. 2x2=4
(2+4)÷4+3
Add 2 and 4 to get 6. 2+4=6
6÷4+3
divide 6 by 4 to get 1.5 6÷4= 1.5
1.5+3
add 1.5 to 3 to get 4.5. 1.5+3= 4.5
A conical water tank with vertex down has a radius of 14 feet at the top and is 28 feet high. If water flows into the tank at a rate of 30 ft3/min, how fast is the depth of the water increasing when the water is 18 feet deep
Answer:
Mark me as brainlist
Step-by-step explanation:
The rate of change of one quantity in a system often causes other quantities to change. By knowing the relationship between the different quantities, we may be able to find the relationship between their rates of change.
Can someone help me so. With this ?
Answer:
A: Nine weeks and one day
Answer:
9 weeks and 3 days
Step-by-step explanation:
22 x 3 = 66
66 divided by 7 (days in the week) = 9.42 (9 = weeks)
9 x 7 = 63
66-63 = 3 (days)
nancy hopes to collect 100 oysters from the ocean.she has collected 15% of her goal so far.how many dose she have?
Answer:
15
Step-by-step explanation:
.15/100
product of 3y and 4 (7th grade)
Answer:
12y
Step-by-step explanation:
ill give you more websites if you need them!
Answer:
-1x - 5
Step-by-step explanation:
Okay, so I believe you need to find what 3x + 5 and -4x - 10 equals?
For this you have to add like terms:
3x - 4x = -1x
5 - 10 = -5
If this isn't it just comment and I'll edit my answer! :)
What is the surface area of a rectangular prism that has a length of 18 inches, a width of 1 foot, and a height of 14 inches?
252 in. 2
3,024 in. 2
1,272 in. 2
568 in. 2
Answer:
C
Step-by-step explanation:
Givens
L = 18 inches
W = 1 foot = 12 inches
H = 14 inches
Surface Area = 2 * L*w + 2*L * h + 2*w*h
Surface Area = 2 * 18*12 +2*18*14 + 2*12*14 all in linear inches
Surface Area = 432 + 504 + 336 all in square inches
Surface Area = 1272 in^2
Hi could anyone help me with this question of standard deviation/mean
Answer: 1 every 6 times thrown
Step-by-step explanation:
Co
4^(3x-2)=20
Solve for x
Answer:
x = 4.2/3
Step-by-step explanation:
omg I will Be Marking A Brainlist
[tex] \frac{35 - 3}{20 - 4} = \\ [/tex]
[tex] \frac{32}{16} = \\ [/tex]
[tex]2[/tex]
d = 2
__________________________________
t(4) = t(1) + 3d
3 = t(1) + 3×2
3 = t(1) + 6
t(1) = 3 - 6
t(1) = - 3
__________________________________
t(n) = t(1) + (n-1)(d)
t(32) = - 3 + 31×2
t(32) = -3 + 62
t(32) = 59
Plssss help me plssss
Answer:
5 courage 1 classic
Step-by-step explanation:
So you already have 5 of the courage’s. Then, one fifth of them is 5/5=1. So 1 classic
52 cents is what tax rate of $8.00?
Answer:
it would be 6.5% tax the reason i know this is becuase its the same tax rate thats in my state :) glad i could help
Step-by-step explanation:
A worker at a cabinet shop is cutting out pieces of wood for a dresser. He needs pieces that are 4 1/4inches long. Each saw cut wastes 1/8 inch of wood. The board he has is 7 feet long. How many pieces can he make from this board?
Answer: he will be able to make 19 full pieces
Step-by-step explanation:
1. Start off by making 7 feet into 84 inches so the measurements can match.
2. Add 4/14 inches and the 1/8 a inch together so you know how much is being taken off 84 inches. The amount will be 35/8 inches.
3. Divide 84 inches by 35/8 inches = 19 1/5
4. The whole number of the answer will be how many boards you can make from the board.
Some school students are raising money for a charity. Their goal is to raise $1000. They already have $232 from bake sales. To raise the remainder, they are planning a walk-a-thon. If each person walking raises $24, how many walkers will the students need to reach their goal?
Answer:
It will be needed 32 walking students to reach the goal
Step-by-step explanation:
1000 - 232
768/24= 32
Answer:
32 walkers.
Step-by-step explanation:
$1000 minus the $232 we have already raised from the bake sale to determine the amount we need to raise from the walk-a-thon.
1000 - 232 = 768.
So in order to raise 768, and we are raising $24 per person we will divide to figure out how many people we need.
768 / 24 = 32.
You can check this answer by multiplying 24 and 32, and then adding the 232 to the product.
24 x 32 = 768
768 + 232 = 1000
Sandra needs 180 feet of purple ribbon to prepare wedding decorations. How many yards of ribbon is this
Answer:
that would be 60 yards
Step-by-step explanation:
3 feet in 1 yard, so divide 180 by 3 and you get 60 yards
NEED HELP INSTANTLY AND WILL GIVE BRAINLIEST AND THANKS
What is the slope of the line that passes through the points (2, −3.5) and (4, 5.5) ?
92
13
29
I don't know
Answer:
hope it helps you.......
The required slope of the line passing through the points is m = 9/2. Option A is correct.
Given that,
To determine the slope of the line that passes through the points (2, −3.5) and (4, 5.5).
The slope of the line is a tangent angle made by line with horizontal. i.e. m =tanx where x in degrees.
Here,
The slope of the line passing through two points is given by,
m = (y₂ - y₁) / (x₂ - x₁)
Substitute value in the above equation
m= 5.5 +3.5 / 4 - 2
m = 9 / 2
Thus, the required slope of the line passing through the points is m = 9/2. Option A is correct.
Learn more about slopes here:
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Solve the equation 52 = 7+5(c+3)?
Answer:
c = 6
Step-by-step explanation:
52 = 7 + 5(c = 3)
52 = 7 + 5c + 15
52 = 22 + 5c
-5c = 22 - 52
-5c = -30
c = [tex]\frac{-30}{-5}[/tex]
c = 6
How do i solve +i for algebra 2 ?
Answer:
i = sqrt(-1)
Step-by-step explanation:
positive i would probably be undefined as well, and just positive sqrt(-1)
It is stated that the functions and are determined by:
how do I set up an equation that can be used to determine the first coordinate of the intersection of the graphs?
Answer: I cant see the question that you asked putting it on the?
Step-by-step explanation:
HELP WILL REWARD BRAINLIEST!!
What is the value of x which proves that the runways are parallel? What is the measure of the larger angle?
Answer:
118°
Step-by-step explanation:
When two parallel lines are cut by a tranversal, then the exterior angles are supplimentary and the corresponding angles are congruent.
Therefore the angle above (15x - 17)° is also (5x + 17)° and the angle below (5x + 17)° is also (15x - 17)°.
Angles on a straight line adds up to 180°. So to know the measure of the larger angle we must both equations and equal it to 180° to find x in order to know the larger angle.
(5x + 17) + (15x - 17) = 180
5x + 15x + 17 - 17 = 180
20x = 180
20x/20 = 180/20
x = 9°
Nkw let's substitute x = 9 into the equations
5x + 17 =
5(9) + 17 =
= 62°
15x - 17 =
15(9) - 17 =
= 118°
Both equations should add up to be 180°.
Therefore the measure of the largest angle is 118°.
How much of a radioactive kind of ruthenium will be left after 8 hours if you start with 3,888
grams and the half-life is 4 hours?
grams
Submit
Answer:
Step-by-step explanation:
As an example, iodine-131 is a radioisotope with a half-life of 8 days. It decays by beta particle emission into xenon-131. After eight days have passed, half of the atoms of any sample of iodine-131 will have decayed, and the sample will now be 50% iodine-131 and 50% xenon-131.
50 grams to 25 grams is one half-life. 25 grams to 12.5 grams is another half-life. So, for 50 grams to decay to 12.5 grams, two half-lives, which would take 36 days total, would need to pass. This means each half-life for element X is 18 days.
Answer:
After 8 hours or 2 half-lives, you will have 972 grams of ruthenium left.
Step-by-step explanation:
hope this helps. . . <3
Can a prime number be a multiple of any number except itself?
what is the volume for 7 1/2 cm by 12 cm by 15 1/2?
Answer:
1/(1/8)= 8 cubes
Step-by-step explanation:
Volume of a rectangular prism is length × height × width
Length=7 1/2
Width= 15 1/2
Height=12
Volume of the prism is therefore:
7 1/2×12×15 1/2= 1395cm3
No of cubes with edge length 1/2 to fit into the prism will be:
Volume of cube is L*W*H
1/2*1/2*1/2= 1/8cm3
Therefore the no of cubes to fit into the Prism will be:
1395/(1/8)= 11160 cubes.
If one was stuck,the number of 1/2 edge length cube to fit into 1cm will be:
Work out m and c for the line: 3 y + 2 x = 1
Answer:
y=1
x=1/5
Step-by-step explanation:
What percent of 7.5 is 40?
Answer: 18.75.
Step-by-step explanation:
james is cutting a 9-foot board into pieces. each piece is 3/5 foot long. how many pieces will he have when its done
Answer:
15 pieces
Step-by-step explanation:
Hope it helps!
Answer:
15
Step-by-step explanation:
