Answer:
-16
Step-by-step explanation:
4x3y2
replace variables with numbers
4×-1×2×2
-4×4=
-16
Simply combining like terms:21b-32+7b-20b
Answer:
8b-32
Step-by-step explanation:
21b-32+7b-20b
=21b+7b-20b-32
=8b-32
If a standard die is rolled twice, what is the probability that it lands on a number greater than 4 both times?
Answer:
1/3 i believe
Step-by-step explanation:
What is the measure of the missing angle
Answer:
40 degrees!
Step-by-step explanation:
95 + 45 = 140
180 - 140 = 40
helpppppp meeeeee!!!
company that manufactures a popular multivitamin wanted to determine whether their multivitamin had any side effects. For its initial study, the company chose 2000 individuals to take one of their multivitamin tablets per day for one year. Scientists from the company surveyed the participants to determine whether they had experienced any side effects. The greatest problem with this procedure is that A) only one brand of vitamin was tested B) the study lasted only one year C) the sample size was not large enough D) no control group was used
Answer:
Option D
Step-by-step explanation:
In this experiment, It would have been scientific to compare the result of the experiment on the experimental group(taking the multivitamin) with the control group (Taking no medicine)
Without a control group, a defined impact of multivitamin over the experimental group cannot be deduced.
Hence, option D is correct
please help and fast!
f(x) = 2x - 3 and f(x) = f'(x), find the value of x.
Answer:
x=1
Step-by-step explanation:
According to your typed question,
f(x)=2x-3
Let f(x)=y
y=2x-3
Now,
Interchanging the positions of x and y
x=2y-3
x+3=2y
x+3/2=y
f'(x)=x+3/2
Then,
f(x)=f'(x)
2x-3=x+3/2
2(2x-3)=x+3
4x-3=x+3
4x-x=3+3
3x=3
x=3/3
x=1
According to your image question,
f(x)=x/2x-3
f(x)=f'(x)
Now,
Let y=f(x)
y=x/2x-3
y(2x-3)=x
2xy-3=x
2xy-x=3
x(2y-1)=3
2y-1=3x
2y=3x+1
y=3x+1/2
f'(x)=3x+1/2
Then,
f(x)=f'(x)
x/2x-3=3x+1/2
2x=6xsq+2x-9x+3
2x=6xsq+7x+3
solve for x ok
PLZ HELP WILL GIVE BRAINLIST!!!
-1.56, -0.98, -0.13, -0.1, 0.5, 0.93
Answer:
-1.56, -0.98, -0.13, -0.1, 0.5, 0.93
Step-by-step explanation:
5x + 10 = 30
HELPPPP
Answer:
4
Step-by-step explanation:
5x+10=30
-10 -10
5x=20
(divide both sides by 5)
x=4
hope this helps
help por favor and ill love you forever <33
Answer:
B
Step-by-step explanation:
the second option!
Answer:
It would be 360/n
Step-by-step explanation:
Every shape's exterior angles must combine to form a 360* shape (meaning "full-circle" even though they are not circles). So you must divide 360 by the number of angles a shape has.
Ex #1: A Square has four angles, so the equation to finding the degrees of each exterior angle is 360/4, which equals 90. So 90* per exterior angle.
Ex #2: A Decagon has 10 angles, so the equation to finding the degrees of each exterior angle is 360/10, which equals 36. So 36* per exterior angle.
i put the image of the question, PLS HELP
Answer:
A translation is when you move in a direction but the shape doesn't turn or change.
You translate an image by moving a shape in any direction without turning it for example: *draw a shape* then move it to anywhere but don't turn the shape.
An easy way of finding the new coordinates is just by looking to which respect it's too. For example when you do a respect to the y axis you keep the second number in the coordinate pair and change the first number's sign in the coordinate pair same to the x axis.
It depends on their sign. Change in x-coordinate. Change in y-coordinate. Right. Increases. No Change. Left. Decreases. No Change. Up. No Change. Increases. Down. No Change. Decreases .
We use vectors to represent a translation. Which means we need direction (up, down, left, or right) and magnitude (length of units).
I NEED HELP WITH THIS
Answer:
180-130=50°
Step-by-step explanation:
answer is 50degrees
Pls help meeeeeeeee will give BRAINLIEST
10 minus what gives you 13.3
A traffic light is green for 2 minutes, red for 40 seconds, and yellow for 10 seconds. When a car approaches the light, what is
the probability that it is not red?
here total second=170 second
probability that is not red=
[tex] \frac{12}{284} [/tex]
Step-by-step explanation:
i think that is the portability that is not red
The probability that the light is not red is 13/17
How to determine the probability?The given parameters are:
Green = 2 minutes
Red = 40 seconds
Yellow = 10 seconds
Express green as seconds
Green = 120 seconds
The probability that the light is red is:
P(Red) =Red/Total
This gives
P(Red) = 40/(120 + 40 + 10)
Divide
P(Red) = 4/17
The probability that it is not red is:
P(Not Red) = 1 - P(Red)
This gives
P(Not Red) = 1 - 4/17
Subtract
P(Not Red) = 13/17
Hence, the probability that the light is not red is 13/17
Read more about probability at:
https://brainly.com/question/251701
For an art project, you are using a piece of cloth that is cut out in the shape of a right triangle. Find the area of the cloth. A triangle with side lengths 6 inches, 6 inches, and 8.5 inches.
Answer:
[tex]A=17.99\ in^2[/tex]
Step-by-step explanation:
Given that,
A triangle with side lengths 6 inches, 6 inches, and 8.5 inches.
We need to find the area of the cloth.
The side lengths form an isosceles triangle. The formula for the area of the isosceles triangle is given by :
[tex]A=\dfrac{1}{2}\times b\times h[/tex]
Where
[tex]h=\sqrt{a^2-\dfrac{b^2}{4}}[/tex]
So,
[tex]A=\dfrac{1}{2}\times b\times \sqrt{a^2-\dfrac{b^2}{4}}[/tex]
Put a = 6 and b = 8.5
So,
[tex]A=\dfrac{1}{2}\times 8.5\times \sqrt{6^2-\dfrac{8.5^2}{4}}\\\\A=17.99\ in^2[/tex]
So, the area of the cloth is equal to [tex]17.99\ in^2[/tex].
pls help i am confused no links
Answer:
x = 20
Step-by-step explanation:
These angles are equal to each other because they are vertical angles.
Hence, we can equal the two measurements together to solve for x:
3x + 50 = 6x - 10
3x + 60 = 6x
60 = 3x
20 = x
Check your work:
3(20) + 50 = 6(20) - 10
60 + 50 = 120 - 10
110 = 110
Correct
What is the length of in the right triangle below?
Answer:
75
Step-by-step explanation:
root21² + root72²= 75
A tree house has a rectangular floor with a perimeter of 246 inches and a length of 48 inches.
What is the width of the floor?
Answer:
75 inches
Step-by-step explanation:
First, the perimeter of a rectangle is 2(length)+2(width). The length and total of the perimeter was given to us, so the equation looks like 2(48)+2(w)=246
96+2w=246 (multiply and add where you can on both sides)
2w=150 (get all of the variables on one side and the numbers on the other)
w=75 (simplify to get your final answer)
width is 75 inches. [make sure to add the units!]
(お役に立てれば)
PLEASE HELP! I MARK YOU BRAINLEST!
Solve for unknown values.
X= degrees
Y= degrees
Answer:
X = 85°
Y = 45°
Step-by-step explanation:
95° + x = 180° [angles on a straight line]
x = 180° - 95°
x = 85°
50° + x + y = 180° [sum of angles in a triangle]
50° + 85° + y = 180°
135° + y = 180°
y = 180° - 135°
y = 45°
A box has a square base with each side measuring 8 inches. The height of the box is 4 inches. What is the surface area of the box in cubic inches?
Answer:
The surface area should be 256 cubic inches
Step-by-step explanation:
The equation you use to find surface area is A=(wl+hl+hw)*2. The w stands for width (8) the l stands for length (8) and the h stands for height (4). When we put these numbers into the equation we get A=(8·8+4·8+4·8)*2. We do the multiplication first, then we add all of them up and times by 2; this gives us our answer of 256.
hope this helps:)
plz can i get brainliest.
What is the largest Angle of BCD?
Answer:
< C
Step-by-step explanation:
because 23 is the largest number on the triangle so the angle opposite of that side would be C
R and E + reeeeeeeee
Answer:
reeeeeeeeeeeeeeeeeeeeee
Step-by-step explanation:
Hi I need help please.
If a rectangular model of a building with dimensions of 5x3x10 represents an actual building with a scale factor of 12, what are the dimensions of the actual building?
Answer:
60x36x120
Step-by-step explanation:
Because the scale factor is 1:12, you multiply the dimension of the building by 12.
Barium sulfate, BaSO4, is a white crystalline solid that is insoluble in water. It is used by doctors to diagnose problems with the digestive system. Barium hydroxide, Ba(OH)2, is also a white crystalline solid and is used in wastewater treatment. How many more oxygen atoms are represented in the formula for barium sulfate than in the formula for barium hydroxide?
what is the mean of this set of numbers? 8,12,10,9,12,9,11,9
Answer:
10
Step-by-step explanation:
You add all the numbers and then divide by the amount of numbers (in this case, 8)
Answer:
Step-by-step explanation:
Mean is average
Add all numbers up
Then divide by the amount of numbers (8)
thats the mean
Help, please! I will try to give you Brainliest when you get it right.
Step-by-step explanation:
a) x + 14 + 3x = 90b) <1 = 33°<2 = 57°As,
x + 14 + 3x = 90 [Complementary Angles]
=> 4x = 90 - 14
=> 4x = 76
[tex] = > x = \frac{76}{4} [/tex]
=> x = 19
Hence,
<1 = x + 14°
= 19 + 14 = 33°
<2 = 3x
= 3 × 19° = 57°
Find the measure of angle B
Answer:
64°
Step-by-step explanation:
Angles in a straight line add up to 180° so 180° - 116° = 64°
Emma and her 3 friends were thirsty, so she shared One-half gallon of lemonade equally among 4 people. How much lemonade did each person get?
One-half divided by 4 =
Answer:
[tex]\frac{1}{8}[/tex] gallon per person
Answer:
yeah what mya said 1/8
Step-by-step explanation:
gl
What is the similarity?
Answer:
The similarity ratio is 2 to 1
Step-by-step explanation:
Mathematically, when two triangles are similar, the ratio of their corresponding sides are equal
Now, let us use the angle markings
We have it that;
RP/QR = VW/VX
4/8 = 1/2
1/2 = 1/2