Answer:
1. 100 000, 89 000, 67 000, 55 000
2. 45 678, 34 567, 23 456, 12 345
3. 98 765, 87 654, 76 543, 65 432-
Solve.
x^2 + 4 = 0.
Answer:
No real solutions
Step-by-step explanation:
You use the quadratic formula.
x = −b ± √(b^2 − 4ac)/2a where y = ax^2 + bx + c
b is 0, a is 1, and c is 4.
-0 ± √(0^2 − 4 x 1 x 4)/ 2(1)
±√(-16)/2
Split √(-16) into √(16) and √(-1).
Now, i = √-1
So you get ±√(-16) = ±4i.
The original equation was ±√(-16)/2.
±4i / 2 = ±2i
The answer is x = ±2i
(Note: ± means positive or negative)
Can someone please help me!!! Also does anyone know if there is a website or calculator that may give me the answers? Please help me! Thank you!
Answer:
[tex] x = 17 [/tex]
Step-by-step explanation:
[tex] 2x + 7 = 3x - 10 [/tex] (alternate exterior angles are congruent when a transversal cuts across two straight lines)
[tex] 2x - 3x = -7 - 10 [/tex] (collecting like terms)
[tex] - x = -17 [/tex]
[tex] \frac{-x}{-1} = \frac{-17}{-1} [/tex] (dividing both sides by -1)
[tex] x = 17 [/tex]
Simplify the expression given below x^2 + x-2
Can a decimal that has repeating digits after the decimal point be converted into a fraction?
Answer:
yes, because you need to convert the repeating number into a decimal. In this case, you can assume that x is the fraction form of 0.7 repeating.
Answer:
yes I think so ...................
What is the relationship between the constant propprtionality of 50 and 0.02
Answer:
Inverse Proportionality
Step-by-step explanation:
Given
Constants 50 and 0.02
Required
Determine the relationship
Let y = 0.02
Convert 0.02 to fraction
y = 2/100
Simplify to lowest form
y = 1/50
Recall that y = 0.02
0.02 = 1/50
From the above expression, we can conclude that the relationship between both is inverse.
In other words, 50 and 0.02 are inversely proportional
1) Two pieces of a pole arle cut into 5 inches each from an original pole that was 20 inches
long. What is the length of the remaining part of the 20 inch pole?
HELP Please
Answer:
it is 10 because 5x2= 10and20-10=10
what is 7 - 4 = 5x - 13
Answer:
x=16/5
Step-by-step explanation:
7-4=5x-13
3=5x-13
+13. +13
16=5x
16/5 = x
whats 8 more than the product of X and 8
Answer:
8X +8
Step-by-step explanation:
Jane rented a movie. She started the movie at 11:42 PM, and it was 2 hours 47 minutes long. When did the movie end?
Find the slope of the line that is perpendicular to the graph of the equation y-4x=1
Answer:
y=-1/4x+1
Step-by-step explanation:
Find the product, using suitable properties:
437 * (-45) + (- 437) × 55
The variables y and x have a proportional relationship, and y = 25 when x = 60.
What is the value of x when y = 30?
A. x = 25
B. x = 36
C. x = 50
D. X= 72
Answer:
A
Step-by-step explanation:
A. x = 25
Mrs. Simon is teaching a 5th grade class. She is standing 6 meters in front of Britney. Lisa is sitting to Britney's right. If Lisa and Mrs. Simon are 10 meters apart, how far apart are Britney and Lisa?
Answer:
they are 4 meters apart from each other i think im not so sure
Ava read an article claiming that 10% of people in her county were senior citizens, and she wondered if this held true for residents in her city. She took a random sample of 225 people from her city to test H0 : p = 0.10, where p is the proportion of people in her city that are senior citizens. Ava found that approximately 14% of those sampled were senior citizens. She conducted an appropriate significance test, and the resulting test statistic was z ≈ 1.89z. Assume that the conditions for inference were met.
Complete Question
Ava read an article claiming that 10% of people in her county were senior citizens, and she wondered if this held true for residents in her city. She took a random sample of 225 people from her city to test H0 : p = 0.10, where p is the proportion of people in her city that are senior citizens. Ava found that approximately 14% of those sampled were senior citizens. She conducted an appropriate significance test, and the resulting test statistic was z ≈ 1.89 z. Assume that the conditions for inference were met.calculate the p-value for Ellie's significance test
Answer:
The p-value is [tex]p-value = 0.0588[/tex]
Step-by-step explanation:
From the question we are told that
The percentage of senior citizens is p = 0.10
The sample size is [tex]n = 225[/tex]
The sample proportion is [tex]\^{p} = 0.14[/tex]
The test statistics is [tex] z \approx = 1.89[/tex]
The null hypothesis is [tex]H_o : p = 0.10[/tex]
The alternative hypothesis is [tex]H_a : p \ne 0.10[/tex]
Generally the p-value is mathematically represented as
[tex]p-value = 2 * P(Z > 1.89 )[/tex]
From the z-table
[tex]P(Z > 1.89 ) = 0.029379[/tex]
=> [tex]p-value = 2 * 0.029379[/tex]
=> [tex]p-value = 0.0588[/tex]
Answer:
No because 0.06>0.05
Step-by-step explanation:
kahn
17. Create an equation that requires distribution on both sides to solve and has a solution of -2.
Answer:
googl really helps sorry
Use partial quotients to divide. Show your work.
)
___ group(s) of
___ group(s) of
___ group(s) of
0
Add the partial quotients.
I need more information on what I'm meant to be doing so I can help you because I don't understand the question after I re-read it over and over again.
Please help what is -0.5 divided by -1/5
Line a is parallel to line t solve for x
Answer:
Sorry dude, I need more context. Can you write out the full equation if there's more? Sorry.
Step-by-step explanation:
what is 6 1/4 divided by 6 1/2?
-5x + 9 = -3x + 1 solve the equation
Answer:
x=4
Step-by-step explanation:
Step 1: Add 3x to both sides.
−5x+9+3x=−3x+1+3x
−2x+9=1
Step 2: Subtract 9 from both sides.
−2x+9−9=1−9
−2x=−8
Step 3: Divide both sides by -2.
−2x/−2=−8/−2
multiple and divide signed numbers
Answer:
Step-by-step explanation:
Multiply answer = - 106
Divide answer = 1.25
If you double 4 and if you double 1/2 then add 1, add 8 +1
Answer:
19?
Step-by-step explanation:
double of 4 is 8, double of 1/2 is 1 and adding them all together is 19
1.98 subtracted by 0.99
Answer:
0.99
Step-by-step explanation:
1.98 - 0.99 is 0.99.
Easy.
Just do it like you would any other problem.
how many inconsiderate people take up space in this world?
Answer:
Too many :(
Step-by-step explanation:
Its life u know
can i pls have brainliest
Answer:
that number is probably too high to count, don't ya think
what is the area of a rectangles with the side lengths 5 inches and 4/3 inches?
Answer: 20/3 square inches
Step-by-step explanation:
Area = length*width
length = 5 in.
width = 4/3 in.
A = 5 * (4/3) = 20/3 in^2
20 points
A parallelogram has one pair of parallel sides.
True or false
If a quadrilateral is a rectangle then it is also a square. *
True or False
A parallelogram always has four congruent sides.
True or False
If a quadrilateral is a square then it is also a rectangle. *
True or False
If a quadrilateral is a trapezoid then it is also a parallelogram.
True or False
Answer: true
Step-by-step explanation:
Step-by-step explanation:
"A parallelogram has one pair of parallel sides."
False. A parallelogram has two pairs of parallel sides.
"If a quadrilateral is a rectangle then it is also a square."
False. A rectangle isn't necessarily a square. Rectangles are only squares when all four sides are equal.
"A parallelogram always has four congruent sides."
False. Parallelograms have two pairs of congruent sides. All four sides aren't necessarily congruent.
"If a quadrilateral is a square then it is also a rectangle."
True. All squares are rectangles.
"If a quadrilateral is a trapezoid then it is also a parallelogram."
False. Trapezoids have only 1 pair of parallel sides, and parallelograms have 2 pairs of parallel sides.
3(2h + 7) = 4(9 – h)
Answer:
h=−2
Step-by-step explanation:
Josh wants to determine the number of loaves of bread he can bake using 13 1/3 cups of flour he has. If each loaf requires 3 4/5 cups of flour, how many loaves can josh bake?
Answer:
4 loaves of bread.....
Sorry if i get it wrong i really tried :(
If it get it right comment down below please! I really want to know!
Which situation involves an annuity?
A.
investing a $1,000 lump sum into an investment account
B.
depositing $5,000 into a one-year CD
C.
using $500 to open a savings account
D.
making regular deposits of $100 into a sinking fund
Answer:c. Using $500 to open a saving account
Step-by-step explanation:
Answer:
its D. making regular deposits of $100 into a sinking fund.
Step-by-step explanation:
I got it right
What value of x is in the solution set of 8x-6 > 12 + 2x?
3
5