What is the slope of the straight line that goes
through (1, 8) and (3, 4) ?
Answer:
-2
Step-by-step explanation:
Slope of the line
[tex] = \frac{8 - 4}{1 - 3} \\ \\ = \frac{4}{ - 2} \\ \\ = - 2[/tex]
Exam
The blueprint's scale is
1 inch : 9 feet. If the gym's
area is 52 square inches on the
blueprint, what is the actual
square footage of the gym?
The area of the actual gym
is_square feet.
Answer:
4212 square feet.
Step-by-step explanation:
If the blueprint's scale is 1 inch : 9 feet.
Square both sides
(1in)² = (9ft)²
1in² = 81ft²
Given the gym's area as 52 square inches, hence;
52in² = x
Divide both expressions
1/52 = 81/x
x = 52 * 81
x = 4212ft²
Hence the area of the actual gym is 4212 square feet.
Find the percent error in this situation:
Estimated value: 56
Actual value: 43
23.2%
0.302%
30.2%
0.232%
Answer:
30.2%
Step-by-step explanation:
Use the percent error formula:
| (experimental - actual) / actual | x 100
Plug in the experimental and actual values:
| (experimental - actual) / actual | x 100
| (56 - 43 ) / 43 | x 100
(13 / 43) x 100
= 30.2
So, the percent error is 30.2%
I need help with this question
Answer:
1 <—5⁰
25<—5²
1/25<—5-²
5<—5¹
What is X?? I really
Need help!!!
Answer:
it's d
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Subtract the sum of the given angles from 180 for x
x = 180 - (125 + 38) = 180 - 163 = 17 → C
Work out
(8×10^-2)−(4×10^-4)
Give your answer in standard form.
Answer:
7.96 x 10^2
Step-by-step explanation:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the
10
. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
The standard form of [tex]8\times10^{-2} - 4\times10^{-4}[/tex] is [tex]\frac{38}{5000}[/tex].
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
Given, [tex]8\times10^{-2} - 4\times10^{-4}[/tex].
[tex]= \frac{8}{10^2} - \frac{4}{10^4}[/tex].
[tex]= \frac{8}{100} - \frac{4}{10000}[/tex].
[tex]= \frac{80 - 4}{10000}[/tex].
[tex]= \frac{76}{10000}[/tex].
[tex]= \frac{38}{5000}[/tex].
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The radius of a circle is 7 inches. What is the circle's area?
r=7 in
Use 3.14 for .
square inches
Answer:
153.86
Step-by-step explanation:
3.14 x (7x7) = 153.86
A dentist has male and female patients that range in ages from 10
years old to 50 years old and up as shown in the table. What is the
experimental probability that the next patient will be female and in
the age range 22-39? Enter your answer in simplified fraction
form.
Answer:
2/15
Step-by-step explanation:
Probability calculates the likelihood of an event occurring. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.
For example, the probability that it would rain on Friday is between o and 1. If it rains, a value of one is attached to the event. If it doesn't a value of zero is attached to the event.
Experimental probability is based on the result of an experiment that has been carried out multiples times
experimental probability that the next patient will be female and in
the age range 22-39 = females in the age range 22-39 / total number of patients
total number of patients = 56 / 420
To transform to the simplest form. divide both the numerator and the denominator by 28
2/15
There are 255 calories in 6 ounces of a type of ice cream. How many calories are in 8 ounces of that ice cream?
Answer:
340
Step-by-step explanation:
255 divided by 6 equals 42.5
255 plus 42.5 times 2
Graph the points (0, 6) and (-8, 0). Which of the following points would create a right triangle?
A (-6,8)
B(-8,6)
C(8, -6)
D(6,-8)
Answer:
D, I think. Screenshot attached with the points.
Step-by-step explanation:
We have given two points (0, 6) and (-8, 0). The third point (8, -6) will make a complete right-angle triangle.
What is the right triangle?
A right-angle triangle is a triangle that has a side opposite to the right angle the largest side and is referred to as the hypotenuse. The angle of a right angle is always 90 degrees.
We have given two points (0, 6) and (-8, 0). we want to find Which of the following points would create a right triangle.
We have mentioned the points on the graph that represent a right-angle triangle. we know that the point (8, -6) will make a complete right-angle triangle.
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Mia went for a long bike ride. She rode 10.25 kilometers each hour for 4.25 hours, how far did Mia travel on her bike ride?
•44.5625 km
•43.5625 km
•40.5000 km
•14.5000 km
Answer:
B..... 43.5625 km
Step-by-step explanation:
While vacationiong, you decided to go bungee jumping off a cliff into the river. Your height as a function of time is modeled by the function h(t)= -16t^2+16t+370, where t is time in seconds and h is the height in feet.
When did u hi the water? Round your answer to the nearest hundreth?
Answer:
5.33 Seconds
Step-by-step explanation:
This is because you have to do the quadratic equation and solve.
The time required to hi the water is 5.33 seconds.
What is a quadratic equation?A quadratic equation is a second-order polynomial equation in a single variable x as ax^2+bx+c=0 with a ≠ 0 . A quadratic equation as an equation of degree 2, meaning that the highest exponent of this function is 2.
For the given situation,
The function is h(t)= -16t^2+16t+370
The roots of this function can be found by using the formula,
[tex]t=\frac{-b+\sqrt{b^{2}-4ac } }{2a}[/tex] or [tex]t=\frac{-b-\sqrt{b^{2}-4ac } }{2a}[/tex]
Here, a=-16, b=16, c=370
⇒ [tex]t=\frac{-16+\sqrt{16^{2}-4(-16)(370) } }{2(-16)}[/tex] or [tex]t=\frac{-16-\sqrt{16^{2}-4(-16)(370) } }{2(-16)}[/tex]
⇒ [tex]t=\frac{-16+\sqrt{23936} }{-32}[/tex] or [tex]t=\frac{-16-\sqrt{23936} }{-32}[/tex]
⇒ [tex]t=\frac{-16+154.712}{-32}[/tex] or [tex]t=\frac{-16-154.712}{-32}[/tex]
⇒ [tex]t=\frac{138.712}{-32}[/tex] or [tex]t=\frac{-170.712}{-32}[/tex]
⇒ [tex]t=-4.33[/tex] or [tex]t=5.33[/tex]
Time cannot be negative. So the value is 5.33.
Hence we can conclude that the time required to hi the water is 5.33 seconds.
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What was Jackie's mistake?
Jackie is asked to find the value of x in the following set of complementary anges.
Answer:
x=37
Step-by-step explanation:
Complementary angles are a set of 2 angles that when added together, add up to 90. In order to solve for x, both angles have to be added and set to be equal to 90... but Jackie only used one of the angles, not both. The correct equation is: x+16+x=90
Answer:
Jackie forgot to add variable X
Step-by-step explanation:
Jackie Did
X +16= 90
equation :
x+x+16= 90
The function f(t)=-16t^(2)+64 represents the height y (in feet ) of a water droplet t seconds after falling from an icicle. After how many seconds does the water droplet hit the ground
Answer:
The answer is two seconds
Step-by-step explanation:
Set the y to 0 as we are looking for the height when f(t) has hit the ground. Then factor and the two zeros of the function are -2 and 2. because the -2 is an answer that that cannot make sense for time in a real world scenario, the answer is the positive zero, or two. :-)
hello please help i’ll give brainliest
Answer:
Option B) His teachings became government philosophy.
Consider the division expression 7 ½ ÷ 2. Select all multiplication equations that correspond to this division expression.
Answer:
i dunno
Step-by-step explanation:
but i need the points to ask questions
a class has ten girls and three boys. if the teacher randomly picks ten students,what is the probability that he will pick all girls?
Answer:
10/13
Step-by-step explanation:
You will first add all the students the mentioned which gives you 13 then since they ask what is the probability it the teacher would pick girls. You know there's 10 girls and 3 boys so it would be 10/13.
Honestly I do not like bullies. If you are a bully than STOP.
Answer:
lol i don't like bullies either
i mean...i say that now...but in first grade i used to be a bully....we don't talk about that tho
anyways have a nice day and show them bullies who's boss
Exactly no one likes bullies :)
Express (2x + 2)(2x^2+ 9x + 7) as a polynomial in standard form
Answer:
4x^3 + 22x^2 + 32x + 14
Step-by-step explanation:
hope this help not sure if right though
hey! i hope your day been good so far ! can anyone help me :)?!
Answer:
Its 7/ 8
dive the 10 1/2 by the 3/4
Step-by-step explanation:
Answer:
14
Step-by-step explanation:
3/4 / 10 1/2 = 1/14
3/4 * 14 = 10 1/2
he total cost of a vase of spring flowers at a flower shop depends on the number of flowers ordered. The vase costs $3, and each flower costs $2.50. Which equation can be used to findc,the total cost of the vase withfflowers?
Answer:
3+2.50x
Step-by-step explanation
x represents how many flowers you bought which you mulitply with 2.50 since each flower is 2.50 dollars. Then you add 3 since the cost of the vase is 3 dollars.
please help i’ll give brainliest!!! thanks
Answer:
The answer is diseases I think
Step-by-step explanation:
Cada material en sus distintos estados de agregacion, cambia de volumen de forma diferente, sin embargo todos lo hacen en cierta medida. A esta propiedad se le llama
La respuesta correcta para esta pregunta abierta es la siguiente.
Aunque no se anexaron opciones o incisos para contestar, podemos comentar lo siguiente.
Cada material en sus distintos estados de agregación, cambia de volumen de forma diferente, sin embargo todos lo hacen en cierta medida. A esta propiedad se le llama Estados de Agregación de la Materia.
Las substancias cambian su composición debido a la presión o al cambio de temperatura a la que son sometidos. A ese proceso se le conoce como el estado de agregación de la materia, cuando las moléculas y átomos que constituyen esa matera se ve sometido a una transformación en su composición.
Podemos reconocer comúnmente cuatro estados de transformación de la materia, que son, el estado de plasma, el estado gaseoso, el estado líquido y el estado sólido
find the value of x:)
Answer:
180 - 58 - 42 = x : sum of angles in a triangle add to 180
80 = x
PLZ HELP, DUE TONIGHT!! Find the values of a and b such that f(x) is continuous at x=1
Answer:
a = 2, b = -4Step-by-step explanation:
To make the given piecewise function continuous we need:
ax² - b = 6 and 5ax + b = 6 at x = 1It gives us the system:
a(1²) - b = 6 ⇒ a - b = 65a(1) + b = 6 ⇒ 5a + b = 6Sum of the two:
a - b + 5a + b = 6 + 66a = 12a = 2Then b is:
2 - b = 6b = -4If 3 men can paint 4 houses in 5 days , how many days does it take for 7 men paint 14 houses ??? help me plz
Answer:
3men = 4houses= 5days
7men= 14houses= x days
14÷7 = 2days
PLEASE HELP EASY MATH!!!!
Express 9+9+9+9 as a single multiplication operation.
Answer:
9 x 4
Step-by-step explanation:
What is the GCF of 18 and 54?
Answer:
its 18 because 18 goes into 18 and 54. goes in 54 3 times
Step-by-step explanation:
Please help me with this
Answer:
F
Step-by-step explanation:
with 5th, you are going to muliply the fraction by 20 to get the answer as a decimal/percent.
0.75=3/4
4/9=0.44 re
6.5=650%