Answer:
27
Step-by-step explanation:
Subtracting a negative is like adding
21 - -6
21 +6
27
Which equation has a zero slope and y-intercept of -2?
Question 3 options:
a) y = x + 2
b) y = 2
c) y = -2x + 0
d) y = -2
Answer:
It is D
Step-by-step explanation:
Please help me find the cube root of 1-i and the square root of i. Leave your answers in Trig form
Answer:
Step-by-step explanation:
-2a = 18
What is A
Pls help
Answer:
-2a = 18
-2 -2 Divide by -2 in order to have A alone
a = -9
Michelle’s mom is letting her paint her room pink. What formula would she use to figure out how much paint she needs.
Simplify by combining like terms.
-3r - 2r - 6 - 1 - 7r+ 9r
Answer:−3r−7
Step-by-step explanation:
I got it of the web.
what is the area of 3.14 x 20
Answer:
62.8
Step-by-step explanation:
What is the classification for this polynomial? 5 Click on the correct answer monomial binomial trinomial
Susie has a bag with 10 hair pins, 7 pencils , 2 snacks and 4 books. What is the ratio of books to pencils?
Answer:
4:7 i think, bc its books to pencils so books go first, which is 4, put the ratio sign, then 7
35,651,000,000 in to scientific notation
Please helpppp :< here is 25 points
Answer:
function b
Step-by-step explanation:
When its asking for which function has a greater rate of change its asking for which slope has a greater value
the slope is calculated by change in y over change in x
for function a, as y goes up 2 x goes up 1
so the slope ( rate of change) is 2/1
for function b is y goes up 3 x goes up 1
so the slope (rate of change) is 3/1
3/1 is greater than 2/1 so function b has a greater rate of change
The radius of Circle A is 6 mm. The radius of Circle B is 4 mm greater than the radius of Circle A. The radius of Circle C is 2 mm greater than the radius of Circle B. The radius of Circle D is 3 mm less than the radius of Circle C. What is the area of each circle? How many times greater than the area of Circle A is the area of Circle D
Answer:
Area of circle A =113.14 mm²
Area of circle b = 314.29 mm²
Area of circle C = 452.57 mm²
Area of circle A = 254.57 mm²
2.25 times
Step-by-step explanation:
Area of a circle = nr²
where n = 22/7
r = radius
Circle A's radius = 6mm
Circle B's radius = 6mm + 4mm = 10mm
Circle C's radius = 10mm + 2mm = 12mm
Circle D's radius = 12mm - 3mm = 9mm
Area of circle A = (22/7) x 6² = 113.14 mm²
Area of circle b = (22/7) x 10² = 314.29 mm²
Area of circle C = (22/7) x 12² = 452.57 mm²
Area of circle A = (22/7) x 9² = 254.57 mm²
Number of times the area of circle D is greater than that circle A = Area of circle D / Area of circle A
254.57 mm² / 113.14 mm² = 2.25 times
Help! I don't know the meaning of life.
How pure is 16-karat gold?
Answer:
here
Step-by-step explanation:
16 karat gold is 16 parts gold to 8 parts other material for a pure gold percentage of 67%.
Answer:
About 67% because karats are on a scale of 1-24 with 24 being pure gold,
so 16/24.
18 is what percent of 20?
Answer:
90%
2 is 10%
20-2=18
90% left.
The Bigtown football team outscored its opponents 5:2 last season. If their opponents scored 38 points, how many points did Big Town score? (Hint: Bigtown is first in the ratio)
Answer:
95 points
Step-by-step explanation:
Let P = Big Town's points
5/2 = P/38
2P = 190
P = 95 points
About what percentage of the area under the normal dis-
tribution curve falls within 1 standard deviation above
and below the mean? 2 standard deviations? 3 standard
deviations?
Answer :
hope this help !
Step-by-step explanation:
Under this rule, 68% of the data falls within one standard deviation, 95% percent within two standard deviations, and 99.7% within three standard deviations from the mean.
A city receives 2 inches of snowfall every 3 hours. Write and graph a function that describes the relationship. How long does it take to receive 1 foot of snow? Use x for the independent variable and y for the dependent variable.
Answer:
To receive 1 foot of snow it will take about 18 hours.
Step-by-step explanation:
Given that a city receives 2 inches of snowfall every 3 hours, to write and graph a function that describes the relationship and determine how long does it take to receive 1 foot of snow, the following calculation must be performed:
1 foot = 12 inches
(12/2) x 3 = X
6 x 3 = X
18 = X
Thus, to receive 1 foot of snow it will take about 18 hours.
Solve the absolute value equation:
|x| -7=-3
Answer:
Step-by-step explanation:
-3+7=4
x=4
Please someone help me with this number line
Which of the statements below is true for the following set of numbers?
20,15,50,85,75,60
The range is 70 and the midrange is 35.
The range is 70 and the midrange is 50.
The range is 85 and the midrange is 55.
The range and the midrange are equal.
Answer:
I think it's B, the range is 70 in the mid-range is 50
Given a triangle with two sides that measure 6 m and 10 m and the included angle measuring 35°, what would be the area? Round answer to the nearest tenth.
The area of the triangle is
m2.
Answer:
89 degrees
Step-by-step explanation:
6 pi 10m divided by 35. The rombos formla.
Select all the values for k that make the equation 42 = k = 14 true.
588
6
2
14
52
3
Answer:
K=3
Step-by-step explanation:
Since when you divide 42÷3 you tend to get 14.
Suppose we know that the width of a rectangle is 3 3/4 cm and the area is 15 square cm. Write and solve a division equation to help you find the length of the triangle.
Answer:
Step-by-step explanation:
A=LW
L=A/W, given A=15 and W=3.75
L=15/3.75
L=4cm
. A clothing store offers a 30% discount on all items at the store. If the original price of a sweater is $40, how much will you pay for the sweater at the discounted price?
Answer:
I don't know i just want some points but to be honest i think you have to divide 40 by 30 then multiply by 100.
Step-by-step explanation:
hope this helps but try and work it out.
One ticket costs $15.45. Three tickets would cost?
A passenger train travels between two
cities at a constant speed. After 6 hours,
it has traveled 450 miles. After 9 hours, it
has traveled 675 miles. Which equation
shows the relationship between the
distance d in miles and the time t in hours?
Answer:
The train travels 75 mph.
Step-by-step explanation:
Hope this helps!
Answer:
(75, 1)
Step-by-step explanation:
One way we can figure out how fast the train goes, is bylooking at what we have. We know that the train travels 450 miles in 6 hours. When we divide, we get 75. So, we know that the train is going at 75 miles per hour. We can check our work by looking at the second relationship on there. When 675 is divided by 9, we get 75. So for every hour, the train travels 75 miles.
I hope that this helps you out :)
What is the solution to the system of equations?
x = -4y
3x + 2y = 20
Answer:
(x, y) = (8, -2)
Step-by-step explanation:
Substitute:
3(-4y) + 2y = 20
-12y + 2y = 20
-10y = 20
y = -2
x = -4(-2) = 8
What is the slope of line that passes through the points (-3,8) and (1,32)?
Answer:
6
Step-by-step explanation:
use the formula of slopes
[tex] = \frac{y2 - y1}{x2 - x1} \\ = \frac{32 - 8}{1 - ( - 3)} \\ = \frac{24}{4} \\ = 6[/tex]
Answer:
[tex]\frac{31 }{11 }[/tex]
Step-by-step explanation:
The formula to solve this is: [tex]\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]. In this case, the expression would be: [tex]\frac{32 -1 }{8 -(-3) }[/tex] or [tex]\frac{32 -1 }{8 +3 }[/tex]. This is also [tex]\frac{31 }{11 }[/tex].
Hope it helps and is correct!
6. (Constructed Response) The planet Mercury is approodmately 8 x 10^7 miles from the Sun. The planet Mercury is approximately 8x 10^9 from the dwarf planet Pluto. What is the total distance from the Sun to the dwarf planet Pluto? Write and solve your work in standard form, then rewrite your answer in scientific notation.
A city receives 4 inches of snowfall every 6 hours. Write and graph a function that describes the relationship. How long does it take to receive 1 foot of snow? Use x for the independent variable and y for the dependent variable. i need a function for this
Answer:
graph ????
Step-by-step explanation: