Answer: three dimensional figure and plane.
Step-by-step explanation:
A cross section is the intersection between a (three dimensional figure) and also a (plane).
When an object is being cut straight, the shape that we get is referred to as the cross section. We should note that several parallel cross sections will be firmed when we cut a particular object into slices.
Jeremy wants to buy a backpack that costs $65. Luckily, the store is having a 35% off sale. What will be the sale price of the backpack?
A)$22.75
B)$42.25
C) $87.75
D) $30
Answer:
B.$42.25
Step-by-step explanation:
I I think that's the answer
locus
which figure is described below ? midpoints of radii of a circle
The figure that is described is a circle.
The locus of the midpoints of the radii of a circle is called a circle.
What is a circle?A circle is the locus of a point such that its distance from a fixed point known as the center is always constant.
A chord is a line that touched two points on the circumference of a circle.
The locus of the midpoints of the radii of a circle is called a circle.
Find out more on circle at: https://brainly.com/question/24375372
Suppose you are thinking about buying one of two cars. Car A will cost $17,655. You can expect to pay an average of $1230 per year for fuel, maintenance and repairs. Car B will cost about $15,900. Fuel maintenance and repairs for it will average about $1425 per year. After how many years are the total costs for the cars the same?
A. 5 years.
B. 7 years.
C. 9 years.
D. 11 years.
Situation: Find the substance's half-life, in days. Round your answer to the nearest tenth. A 50 gram sample of a substance that's used to treat thyroid disorders has a k- value of 0.1133. Enter the correct answer. N = Noe -kt DONE No = initial mass (at time t = 0) 1? N = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days
Find the substance's half-life , in days.
Round your answer to the nearest tenth.
Answer:
The substance's half-life is 6.1 days.
Step-by-step explanation:
The half-life of the substance can be calculated by knowing the constant decay:
[tex] t_{1/2} = \frac{ln(2)}{k} [/tex]
k: is the decay constant = 0.1133 d⁻¹
Hence, the half-life is:
[tex] t_{1/2} = \frac{ln(2)}{k} = \frac{ln(2)}{0.1133 d^{-1}} = 6.1 d [/tex]
Therefore, the substance's half-life is 6.1 days.
I hope it helps you!
need help please hhhhhhhhhhhhhhhhhhhheeeeeeeeeeeeeeeeeeeeeeeelllllllllllllllllllllllllpppppppppppp
An isosceles triangle has two identical angles.
The three angles need to add up to 180 degrees.
If one angle is 100 then the other two angles added together need to equal 180-100 =‘80 degrees.
Since two angles need to be the same the other angles are 80 / 2 = 40 degrees each.
The answer is 40
Answer:
A. first answer on the left.
Step-by-step explanation:
If one of the angles is 100 then if the triangle is isosceles then the two remaining angles have to be either 100 and - 20 (which is impossible because at this level of math there is no such thing as an angle with a measure of - 20).
The minus 20 comes from every triangle having 180 degrees. 100 + 100 adds to 200, which means the third angle has to be the impossible measure of - 20.
The other possibility is that the given angle of 100 is the top angle and that leaves 80 degrees for the two isosceles angles.
2x = 80
x = 80/2
x = 40
The only possible answer is 40 - 40 - 100
Is the unknown side a leg of the triangle or the hypotenuse?
Answer:
I think it a triangle
At a recent meeting at the American College of Asthma, Allergy, and Immunology, researchers reported that allergy vaccinations are effective in treating sinusitis (inflammation of the membrane lining the facial sinuses) in individuals predisposed to allergies. Specifically, the researchers reported that 98% of individuals predisposed to allergies find relief from their sinusitis after allergy vaccinations. Suppose that this number is accurate and that 150 individuals predisposed to allergies are chosen at random and given allergy vaccinations.
A. Estimate the number of individuals in the random sample who do not find relief from their sinusitis by giving the mean of the relevant distribution (that is, the expectation of the relevant random variable).
B. Quantify the uncertainty of your estimate by giving the standard deviation of the distribution.
Solution :
Here we can use the Binomial distribution, as there are only two possible outcomes.
The given data:
n = 150
q = 98%
= 0.98
p = probability of not finding relief = 1 - 0.98
= 0.02
A). The number of the individuals who do not find any relief from sinusitis is :
E(x) = np
= 150 x 0.02
= 3
B). The uncertainty of my estimate is = [tex]$\sqrt{npq}$[/tex]
[tex]$=\sqrt{150 \times 0.02 \times 0.98}$[/tex]
= 1.716
Math Question 14 Unit Rate
Answer:
40 miles per hour
Step-by-step explanation:
After 1 hour the car traveled 40 miles, after 4 hours the car traveled 160 miles. 4 x 40 = 160. Therefore 40mph.
45 minutes and 45 minutes is 90 Minutes so that is 1 hour and 30 minutes. So the answer is your welcome I’m so high
Answer:
Yeah that's correct.
Step-by-step explanation:
You're welcome I'm so high
0.5; MATH PROBLEM HERE!!,,,,,,,,,
Solve each system by elimination 9x - 6y = -21 and -9x + 9y = 18
Answer:
X= -3, Y= -1
Step-by-step explanation:
= {x, y}
= {-1.-3}
X = -1
Y = -3
ExplainLook at the picture :)
#LearnWithBrainly
gak bisa bahasa inggrisusing the function y =4x^2 +5x -21 estimate the slope of the curve at x= 1
Answer: 13
The derivative of this is 8x+5, plug in 1 for x. 13
Use >,<, or = to compare -2.7
-2.2.
Answer:
- 2.7 < - 2.2
Step-by-step explanation:
Which net represents this solid figure?
Rectangular prism 5.
Net of a rectangular prism 10.
Net of a cube 4.
Net of a rectangular prism 9.
Net of a triangular prism 10.
Answer:
Net of rectangular prism 9
Step-by-step explanation:
I took the test
help please i have 3 more questions left !!
Answer:
[tex]24[/tex]°
Step-by-step explanation:
its a straight line so the total is 180, so we subtract from 180
180-156= 24
Harry had 3 packages of gum. Altogether there were
24 pieces of gum. If all packages have the same
number of sticks of gum, how many sticks of gum are
on each package?
Given,
Number of pieces = 24
Number of packages = 3
Each package has the same number of pieces.
So,
Number of pieces in 1 package
= Number of pieces / Number of packages
= 24 / 3
= 8
12xy {}^{2} +xy {}^{2}z +3xy
[tex] {?}^{2} [/tex]
Answer:
xy(12y + yz + 3)
Step-by-step explanation:
GCF = xy
Take (xy) from each term
12xy² + xy²z + 3xy = xy(12y + yz + 3)
Need help with linear function
Answer:
y = 1/2x + 2
Step-by-step explanation:
Question 20
Ahmad works mowing lawns and babysitting. He eams $7.40 an hour for mowing and S6.80 an hour for babysitting. How much will he earn for 7 hours of
mowing and 1 hour of babysitting?
In math class, the girl to boy ratio is 8 to 6. If there are 24 girls in the class, how many boys are there? please ill rate you a five
Answer:
32boys
and
total of 56 students
Step-by-step explanation:
8:6
[tex]x \times \frac{6}{14} = 24 [/tex]
[tex]x = 24 \div \frac{6}{14} [/tex]
[tex]x = 56[/tex]
so,
[tex]56 \times \frac{8}{14} = 32[/tex]
Susan needs to simplify the expression shown below.
75 − ( 8 + 45 ÷ 3 ) x 2
What is the correct solution for Susan’s expression?
Answer:
The answer to 75 - ( 8 + 45 ÷ 3 ) × 2= 29
please help I'll give brainliest
Answer:
47
Step-by-step explanation:
x-2+3x-6= 180 ( as they are complementary angles)
4x-8= 180
4x= 188
x= 47
If 12 inches is equal to 1 foot, then 3 inches is equal to
Answer:
1/4 a foot
Step-by-step explanation:
Answer: 1/4th of a foot
Find the siope of the line passing through the points (-2, 2) and (-6,5).
Answer:
slope= -3/4
Step-by-step explanation:
i hope this helps :)
Mrs. Blue is asked to select 2 students to represent her class for the student council. The teacher decides to put everyone's name in a jar and draw.
A. What is the population?
B. What is the sample?
Step-by-step explanation:
the answer is A and B hope that helps you
A radioactive substance has a continuous decay rate of 0.056 per minute. How many grams of a 120 gram sample will remain radioactive after 40 minutes? Round the answer to the nearest tenth of a gram, and do not include the unit in your answer.
Answer:
The mass of the radioactive sample after 40 minutes is 12.8 g.
Step-by-step explanation:
The mass of the sample can be found by using the exponential decay equation:
[tex] N_{t} = N_{0}e^{-\lambda t} [/tex]
Where:
N(t): is the amount of the sample at time t =?
N₀: is the initial quantity of the sample = 120 g
t = 40 min
λ: is the decay constant = 0.056 min⁻¹
Hence, the mass of the sample after 40 min is:
[tex] N_{t} = N_{0}e^{-\lambda t} = 120g*e^{-0.056min^{-1}*40 min} = 12.8 g [/tex]
Therefore, the mass of the radioactive sample after 40 minutes is 12.8 g.
I hope it helps you!
Divide. Round your answer to the nearest hundredth.
Answer:
775.64
Step-by-step explanation:
Someone please help this is due today and I only have 15 more mins to be able to turn it in
Answer:
A
Step-by-step explanation:
5 to the power of 2 is 25
10 to the power of 2 is 100
and so goes on..
What is the decimal equivalent of 8%
Simplify the algebraic expression: 6(d - 4e)
Answer:
6d - 24e
Step-by-step explanation:
