Answers
Answer: b =50°
Step-by-step explanation:
The angles on a straight line =180°
180° = 50°+90°+b
180°-50°-90°=b
50° = b
Answer:
Step-by-step explanation:
∠b + ∠a + 50° = 180°
∠b + ∠90 + 50° = 180°
∠b = 180° - 90° - 50° = 40°
Related Questions
What is the percent decrease from 20 to 11?
Answers
Answer:
The decrease from 20 to 11 is 9, and that is 45% of 20.
Hope this helps!
Find a solution to the equation 4(x + 7) = 38
Answers
Answer:
4(x+7)=38
4x+28=38
4x=38-28
4x=10
(divide by 4)
x=2whole number 2/4
=2whole number 1/2
or x=2.5
what is the answer to the problem 5p-14=8p+4
Answers
Answer:p=-6
Step-by-step explanation:
If f (x) = x-5 and g(x) = 4x what is the value off [g(4)]?
Answers
Step-by-step explanation:
f[g(4)]
g(x) = 4x
g(4) = 4(4)
= 16
f(x) = x-5
f[g(4)] = f(16) = 16 - 5 = 11
So, f[g(4)] = 11
HELP NEED THIS FOR A TEST!!! 20 POINTS!!
Diego's family car holds 14 gallons of fuel. Each day the car uses 0.6 gallons of fuel. A warning light comes on when remaining fuel is 1.5 gallons or less.
Answers
Answer:
a.
capacity of car = 14 gallons
consumption of fuel in one day = 0.6 gallons
consumption of fuel in 14 days = 14 x 0.6 = 8.4 gallons
fuel remaining in car = 14 - 8.4 = 5.6 gallons
so they can drive the car without warning.
b.
consumption of fuel in one day = 0.6 gallons
consumption of fuel in 25 days = 25 x 0.6 = 15 gallons
fuel remaining in car = 14 - 15 = -1 gallons
so they can't drive the car without warning.
c.
the expression 14 - 0.6t represents remaining fuel in the vehicle, where t represents number of days.
d.
14 - 0.6t = 1.5
or - 0.6t = 1.5 - 14 = - 12.5
or t = -12.5 / - 0.6
or t = 20.8333 days
so he can drive 20 days without warning. E.
14 - 0.6t < 1.5
or t < 20.8333
here t represents number of days car can drive without warning light.
Step-by-step explanation:
The inequality is
The maximum number of days that Diego's father can drive the car without the warning light coming on is 20 days
14 gallons-1.5 gallons=12.5 gallons
we know that
If the remaining fuel is greater than 1.5 gallons Diego's father can drive the car without the warning light coming on
so
Let
x ----> the number of days
----> inequality that represent the situation
Solve for x
The maximum number of days that Diego's father can drive the car without the warning light coming on is 20 days
find the inverse of y=100-x^2
Answers
Answer:
The inverse is ±sqrt(100-x)
Step-by-step explanation:
To find the inverse, exchange x and y
x = 100 -y^2
Solve for y
Subtract 100 from each side
x - 100 = -y^2
Divide by -1
-x +100 = y^2
Take the square root of each side
±sqrt(100-x) = sqrt(y^2)
±sqrt(100-x) =y
The inverse is ±sqrt(100-x)
Which of these is a function please answer.
Answers
Answer:
1 and 3
Step-by-step explanation:
Answer:
Options 1 and 4Step-by-step explanation:
Option 1
x-values are different and y-values are sameThis is a functionOption 2
x-values are repeated (3) with different y-valuesThis is not a functionOption 3
x-values are repeated and y-values are differentThis is not a functionOption 4
x- values are different, y-values are differentThis is a function
Last summer, Marrero was at Newgrange, a stone mound in Ireland that has a diameter of 250 feet. He found a walkway 62 feet long that leads to the center of the mound. Help Marrero find perpendicular distance x from the end of the walkway to either side of the mound.
Answers
Answer:
108 ftStep-by-step explanation:
The line connecting the center with the end of the walkway is radius and is the hypotenuse of the right triangle.
Horizontal leg is the distance x.
Vertical leg has the length:
(250)/2 - 62 = 63 ftUsing Pythagorean theorem to find the length of x:
x² = (250/2)² - 63²x² = 125² - 63²x² = 11656x = √11656x = 107.96 ≈ 108Find the value of x.
Answers
Answer:
6
Step-by-step explanation:
Because they are the same
I NEED HELP ILL GIVE BRAINLEST
Answers
Answer:
5,0
10,0
( I'm sorry if this wasn't helpful to you) ;(
Write the fraction as a decimal.
Round to the nearest hundredth.
7/18~ [?]
Answers
Answer:
0.39
Step-by-step explanation:
7/18= 3.888888888
round up
0.39
factorise p² + pq - p³ - q² completely
Answers
Answer:
The expression is not factorable with rational numbers.
p ^2 + p q − p ^3 − q ^2
Step-by-step explanation:
A. f(x) =1/2 (4,000)^x
B. f(x) = 4,000(2)^x
C. f(x) = 2,000 (1/2)^x
D. f(x) = 4,000 (1/2)^x
Answers
Write an equation in Standard form for a line that goes through the points
(-2,-6) and (3, 4).
Answers
m=(4-(-6))/(3-(-2) = 10/5 =2
Now we can choose either point to get the equation
y-(-6) = 2(x-(-2))
y+6 = 2x+4
Subtract 6 from both sides
Y=2x-2
Help me with this pls
Answers
Circle the volume, in cm^3, of a cylinder with radius 5 cm and height 8 cm
[1 mark]
A)40π
B)80π
C)200π
D)1600π
Answers
Answer:
C
Step-by-step explanation:
Volume of a cylinder is πr²h
V = π * 5² * 8
V = π * 25 * 8
V = π * 200
V = 200π
What is the constant term in the expression 6׳y + 5× + 4
PLEASE HELP ME OUT I begging you guys p.s. if u give me the correct answer I'll give u brainillesst points
Answers
Answer:
the constant is x
Answer:
its 4
Step-by-step explanation:
plz plz help plz plz
Answers
Answer:
1
Step-by-step explanation:
when dividing numbers with exponents with the same base, subtract the exponents.
[tex]\frac{8^{7} }{8^{7} }[/tex]
7 - 7 = 0
[tex]\frac{8^{7} }{8^{7} }[/tex] = [tex]8^{0}[/tex]
anything to the power of 0 is 1
[tex]8^{0}[/tex]= 1
Answer:
1
Step-by-step explanation:
Any number divided by itself equals 1 with the exception of 0 since 0/0 is undefined.
8^7 is not equal to zero, so without doing any calculations or using any other rules, we know that
8^7/8^7 = 1
We can use the rule of exponents for dividing powers.
Rule:
[tex] \dfrac{a^m}{a^n} = a^{m - n} [/tex]
Here we have a = 8, m = 7, and n = 7.
Applying the rule, we get
[tex] \dfrac{8^7}{a^7} = 8^{7 - 7} = 8^0 [/tex]
Another rule of exponents:
[tex] a^0 = 1 [/tex]
We the zero power rule now:
[tex] 8^0 = 1 [/tex]
Therefore,
[tex] \dfrac{8^7}{a^7} = 1 [/tex]
Answer: 1
The money Sky makes from babysitting is directly proportional. After 4 hours, she makes $72. How much money would she make after 7 hours?
A) $72
B) $52
C) &126
D) $108
Answers
Answer:
C. $126
Step-by-step explanation:
Let us say x is the amount of money Sky makes for babysitting 7 hours.
[tex]\frac{72}{4} =\frac{x}{7}[/tex]
[tex]\frac{72}{4} = 18[/tex]
[tex]18=\frac{x}{7}[/tex]
x=$126
72 divided by 4= 18
18•7= 126
:)
Garth is building a square shaped frame for a mirror. The area of the mirror is 144 square inches. How long is each side of the frame, in inches?
Answers
Answer: 12 inches
Step-by-step explanation:
This is a square shaped mirror which means that it takes the shape of a square.
All sides on a square are equal and because the way the find the area of a square is to multiple the Length by the Width, you would be squaring the same number to find the area.
Length of each side = √area
= √144
= 12 inches
Which table represents the function?
Answers
A 10 METER PIECE OF WIRE IS CUT IN TO TWO PIECES ONE PIECE IS 2 METERS LONGER THAN THE OTHER HOW LONG ARE THE PIECES
Answers
one piece is 2m
one is 8m
Gregs parents tell him if he works more than 60 hours in May, they will buy him a new lawn mower. In the month of May, Greg earns $1,387-50. Are Greg's parents going to buy Greg a new lawn mower?How many hours did he work?Expain using math terms and words.
Answers
Answer:
how much money did he make an hour ?? you cant calculate hours if you dont know his rate
Step-by-step explanation:
total made / hourly rate = hours worked and then you can determine if he gets a lawn mower
round off to the nearest hour 10 :54
Answers
Answer:
11
Step-by-step explanation:
the closest whole number on the hour is 11
Similar polygons
10 points!!
Answers
Answer:
7
Step-by-step explanation:
if the stick is 7.5 divide that by 3 and you get 2.5 so divide 17.5 by 2.5 and you get 7 .
I need help with this question
Answers
Answer:
Part A
D
Part B
76
Step-by-step explanation:
I don't know how to explain it
an element with mass 630 grams decays by 18.8% per minute. How much of the element is remaining after 7 minutes, to the nearest 10th of a gram?
Answers
Answer:
Step-by-step explanation:
Total Depreciation: 60.24%
Total depreciation: $9,759.50
Car Value after 6 years: $6,440.50
The element is remaining 146.6 grams after 7 minutes, to the nearest 10th of a gram.
What is exponential decay?An exponential function's curve is created by a pattern of data called exponential decay, which exhibits higher decreases over time.
The exponential decay function:
Aₙ = A₀(1-r)ˣ, where y = Final amount, A₀ = Initial amount, r = Rate of decay in decimal form, x = Time.
Given:
An element with mass 630 grams decays by 18.8% per minute.
That means, 18.8% = 0.188
Here, we will use the exponential decay function.
Aₙ = A₀(1-r)ˣ, where y = Final amount, A₀ = Initial amount, r = Rate of decay in decimal form, x = Time.
Here,
A₀ = 630 grams
r = 0.188
x = 7 minutes
Substituting the values to the formula,
A₇ = 630(1-0.188)⁷
A₇ = 630(0.812)⁷
A₇ = 630(0.23275134787)
A₇ = 146.633
A₇ = 146.6 grams.
Therefore, element is remaining 146.6 grams.
To learn more about the exponential decay;
https://brainly.com/question/14344314
#SPJ2
To decide if 12.5 centimeters is greater than 140 millimeters, the first step is to set up a proportion. Which of the following proportions are correct?
A. 10mm/1cm = x/140mm
B. 1cm/10mm = 12.5cm/x
C. 10mm/1cm = 140mm/x
D. 12.5mm/1cm = 140mm/x
Answers
Reflect across the y-axis. Fill in the new coordinates below:
Answers
Answer:
A(-1,2)
B(-4,4)
C(-3,1)
Step-by-step explanation:
simply reflect across the y-axis. pls give brainliest
On a snowy winter's eve, two candles are lit at the exact same time. A 18-inch candle and a 21-inch
candle are lit at the exact same time. The 18-inch candle burns 2 inches every hour. The 21-inch
candle burns 3 inches every hour.