Answer:
Step-by-step explanation:
Solving quadratics is easy. With no coefficient to the x^2, we can go right to finding factors. We want two numbers that multiply to -21, and add to 4. Our numbers are 7, and -3. Now, we move the numbers around to be (x-3) and (x+7). We know that these both equal 0, so we can do basic algebra to solve for x. We can subtract 7 to the other side to just get x, and add 3 over because it is subtracted by x. This leaves us with our answers:
x = -7, x = 3
Flying against the wind, an airplane travels 4300 kilometers in 5 hours. Flying with the wind, the same plane travels 12,240 kilometers in 9 hours. What is the rate of the plane in still air and what is the rate of the wind?
Answer:
250 I’m not 100% sure though.
Step-by-step explanation:
How many meters are in 360 inches?
Answer:
9.144 meters
Step-by-step explanation:
pls help , need this done by tomorrow.
Answer:
3x+2y = 30
Step-by-step explanation:
The area of the rectangle on the left is
A = 3x
The area of the rectangle on the right is
A = 2y
The sum of the areas is
3x+2y = 30
A bag has 4 Hershey's bars, 5 Twix, 7 Reese's bars, and 9 Milky Way bars.
Caroline randomly picks a piece of Cândy from the bag, puts it back, and then pícks out another one. What is the
probability that Caroline does NOT pick a Hershey's bar and then does NOT pick a Twix?
#Hint: 4 + 5 + 7 + 9 = 25 total
P(NOT Hershey's and then NOT TWix) = _
b
4/25 - 5/25 = 20/625 = 4/125
4/25 * 5/24 - 20/600 - 1/30
21/25 * 20/25 - 420/625 - 84/125
21/25 * 20/24 = 420/600 - 7/10
с
Step-by-step explanation:
Total bars = 4 + 5 + 7 + 9 = 25
Probability of Reese bar = 7/25
Probability of milky way = 9/25
Use the graph below to determine a1 and d for the sequence.
a1 = 1; d = 3
a1 = 1; d = −3
a1 = 2; d = 3
a1 = 2; d = −3
NEED HELP ASAP
Answer:
a₁ = 2 and d = 3
Step-by-step explanation:
Consider the sequence given by the values of y, that is
2, 5, 8, 11, 14, 17
The first term in the sequence is a₁ = 2
The common difference is
d = 17 - 14 = 14 - 11 = 11 - 8 = 8 - 5 = 5 - 2 = 3
Thus a₁ = 2 and d = 3
The first term of the sequence is 2 and the common difference is 3. Therefore, option C is the correct answer.
What is an arithmetic sequence?An arithmetic sequence is a sequence of numbers where the differences between every two consecutive terms is the same. The general form an arithmetic sequence is an=a+(n-1)d
The given coordinates are (1, 2), (2, 5), (3, 8), (4, 11), (5, 14) and (6, 17)
The y-coordinates are 2, 5, 8, 11, 14, 17,....
Here, the y-coordinates are in arithmetic sequence
Now, a₁=2 and d=5-2=3
Therefore, option C is the correct answer.
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Kendra flips a fair coin two times. What is the probability that she will flip tails both times?
Answer: 1/4 or 25%
Step-by-step explanation:
The chance of flipping tails is 1/2, so you multiply 1/2*1/2 (for the 2 flips) to get 1/4 (1/2^2=1/4).
Find the slope of a line which goes through the points (2,3) and (4,3)
Answer:
m=0
Step-by-step explanation:
the slope is 0
Answer:
0
Step-by-step explanation:
We can find the slope for a line given two points using
m= (y2-y1)/(x2-x1)
= (3-3)/(4-2)
= 0/2
=0
The slope is 0
need help fastt will give brainliest!!!!!!
Answer:
1) A
2) B
Step-by-step explanation:
Answer:
# 1 is A #2 is B
Step-by-step explanation:
i hope this helps btw u got insta
At the school library, 3/5 of the books are fiction books, and 1/9 of the fiction books have pictures. What fraction of the books at the school library are fiction books that have pictures?
A: 3/45
B: 5/27
C: 4/14
D : 22/45
Answer:
3 = 27
5 = 54
1 = 5
9 = 54
Jada has 450 cards. How many packages of 100 cards can Jada make?
Answer:
she can make 4 and a half
Step-by-step explanation:
Jada can make only 4 packages of 100 cards, as of the given conditions.
What is simplification?The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
What are equation models?The equation model is defined as the model of the given situation in the form of an equation using variables and constants.
here,
Jada has 450 cards.
packages of 100 cards can Jada make is given as,
= 450 / 100
= 4 + 50/100
Thus, Jada can make only 4 packages of 100 cards, as of the given conditions.
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Circle the correct term to complete each sentence.
(you don't have to circle just put the question number and put the answer pls help I need this!
Answer:
10. Ounces
11. weight
12. Pounds
Step-by-step explanation:
Hello there!
10. The unit of measurement that would be most appropriate to measure a paper clip's weight is in (ounces).
11. The type of measurement that is used to measure how heavy an object is called (weight).
12. The unit of measurement that would be the most appropriate to measure the weight of a flour bag is in (pounds).
Mike claims that (23)5 = 215 Sarah claims that (23) 5 = 28. Who is correct? Explain your reasoning
Answer:
Mike
Step-by-step explanation:
23 x 5 = 215 and Sarah added instead of multiplying
Answer:
Mike is correct
Step-by-step explanation:
Mike multiplies 23 and 5 when Sarah adds 23 and 5.
Zelda completed the right column of the table to help her find the difference.
Five-sixths minus one-ninth
In which step did his first error occur?
Step 1,2,3, or 4
Answer:
His error occurred in the last step
Explanation:
He was supposed to calculate -
[tex]\frac{5}{6} - \frac{1}{9} \\or\\\frac{15}{18} - \frac{2}{18} \\[/tex]
which would equal -
[tex]\frac{13}{18} \\not\\\frac{17}{18}[/tex]
Because he added instead of subtracted.
Hope this helps!
stay safe
Which superhero defeats more enemies per minute?
Express the area of the entire rectangle.
Your answer should be a polynomial in standard form.
Answer:
x^2 + 10x +24
Step-by-step explanation:
blue square
x ⋅ x = x^2
pink rectangle
x ⋅ 4 = 4x
green rectangle
x ⋅ 6 = 6x
orange rectangle
4 ⋅ 6 = 24
add them all together
x^2 + 4x + 6x + 24
simplify
x^2 + 10x +24
Solve the inequality:
-40 < 2(a + 12).
Answer:
a> -32
Step-by-step explanation:
-40 < 2(a +12)
-40 < 2(a) +2(12) (expand)
-40 < 2a +24
-40 -24 < 2a (bring constant to one side)
-64 < 2a (simplify)
2a > -64
a > -64 ÷2
a > -32
How does the function f(x) = a ln x compare to the parent function when |a| > 1?
Answer: The graph is stretched.
Step-by-step explanation:
Answer:
The graph is stretched
Step-by-step explanation:
right on edge 2023
What is the sum? . . .
Answer:
3/x + 4/x^2 = (3x + 4)/x^2
Hope this helps!
:)
The two figures are similar, Write the similarly statement. Justify your answer.
PLEASE ANSWER
I guess you mean the scale factor
it is 60/45 OR 40/30 OR 50/37.5 = 4/3
Q11:
Around 80% of the human body mass is water. If Jenny weighs 106 pounds, about how much of her body weight is water?
Round to the nearest whole number
Answer:
85
Step-by-step explanation:
To solve this, you would have to figure out what 80% of 106 is. 80% of 106 is 84.8. If you were to round this to the nearest whole number, you would get 85.
Please answer ASAP !!!!! WILL MARK BRAINLIEST !!!
Answer:
Step-by-step explanation:
6v - 2u = 9
6v = 9 + 2u
v = (9 + 2u)/v
h(v)= (9 + 2u)/v
Help!!!
Please answer
Answer:
[tex]448 {cm}^{2} [/tex]
Step-by-step explanation:
[tex]area = \frac{1}{2} \times base \times height \\ = \frac{1}{2} \times 32 \times 28 \\ = \frac{896}{2 } \\ = 448 {cm}^{2} [/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
So the right answer is 448cm^2.
Look at the attached picture
Hope it will help you
Good luck on your assignment...
Have a great day
Divide.
(6x^3+8x^2-6x+4) / (x+2)
Answer:89
Step-by-step explanation:
I do math I’m 3 grade
HEY GUYS I NEED HELP ASAP PLZZ! 20 points to the person who can give me the right answer first!!
MATH PROBLEM: Josh has a 4-foot long board. How much of it does he need to cut off to be left with a length of 20 inches?
Answer:
28 inches of the board
Write the missing numbers to complete the multiplication equation show how much of the deck is painted
Answer:
i think you forgot to add a photo.
Step-by-step explanation:
Use the complement of the event to find the probability. A bag contains 2 red, 5 blue, and 3 green balls.
What is the probability of not choosing a red ball?
Answer:
8/10, 80%
Step-by-step explanation:
tanya has a bond with a 5.9 yield, a big price of $1950, and a face value of $2000. what is the original coupon rate of this bond?
a 6% b 6.2% c 5.8% d 5.5 %
Answer:5.8%
Step-by-step explanation:
Click on the correct symbol
2,000 lb
1 T
Answer:
TFtgsbhjz whatt
Step-by-step explanation:
The correct symbol for the unit conversion is given by 2000 lb = 1 T
What is unit conversion?In order to translate measurements of a particular amount between different units, a mathematical conversion factor is usually used. This modifies the measurement of the quantity without altering its effects.
The particular circumstances or the intended result control the conversion process. This may be governed by law, a contract, a list of technical specifications, or other publicly available standards.
A precise conversion from one system to another is necessary for some measures in order to maintain the precision of both the original measurement and the conversion.
Based on the connection between a particular pair of original units and a particular pair of target units, each conversion factor is chosen.
Given data ,
Let the symbol be represented as A
Now , the weight of the object is given by
Let the first weight be p = 2000 lb
Let the second weight be q = 1 Ton
And , from the unit conversion
2000 lb = 1 Ton
So , the value of q = p
Hence , the symbol is equal to and 2000 lb = 1 Ton
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Sergei buys a rectangular rug for his living room. He measures the diagonal of the rug to be 18 feet. The length of the rug is 3 feet longer than the width. What are the approximate dimensions of the rug? Round each dimension to the nearest tenth of a foot.
A) 10.4 feet by 7.4 feet
B) 11.1 feet by 8.1 feet
C) 13.4 feet by 10.4 feet
D) 14.1 feet by 11.1 feet
Riley earned enough points on his gas card to save 10 cents per gallon on his next gas purchase.If the price per gallon of gas is $2.50. what percent will he be saving per gollon
Answer:
4%
Step-by-step explanation:
4% of $2.50 is 10 cents
Riley can save 4% per gallon as his savings during the purchase of gas.
What is a percentage?"A percentage is a number or ratio expressed as a fraction of 100. It is a relative value indicating hundredth parts of any quantity. It is often denoted using the % percent sign".
For the given situation,
Price per gallon of gas = $2.50
Riley saves price per gallon = 10 cents
We know that, [tex]\$1 = 10 cents[/tex]
⇒ [tex]\$2.50=2.50 (100) cents[/tex]
⇒ [tex]\$2.50=250cents[/tex]
Now 10 cents are how many percent of 250 cents can be determined by
⇒ [tex]\frac{10}{250}(100)[/tex]
⇒ [tex]4\%[/tex]
Hence we can conclude that Riley can save 4% per gallon as his savings during the purchase of gas.
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