Answer:
[tex]x=-10;x=2[/tex]
Step-by-step explanation:
[tex](x+10)(x-2)=0\\(-10+10)(-10-2)=0\\0(-12)=0\\0=0[/tex]
[tex](x+10)(x-2)=0\\(2+10)(2-2)=0\\0(12)=0\\0=0[/tex]
In science class, Farah uses a graduated cylinder with
water in it to measure the volume of some marbles. She
drops in marbles so that they're all under water and
measures the height of the water.
After dropping in 4 marbles, the height is 10 ml
After dropping in 6 marbles, the height is 11 ml.
Here are your answers from the previous screen:
Before dropping in any marbles, the height is 8 ml.
Each marble increases the height by 3 mL.
What should be the height of the water after 13 marbles
are dropped in?
Answer:
47 mL
Step-by-step explanation:
Note each marble increases the height by 3 mL, and we start with 8 mL, so we multiply 3 by 13, and add it to 8
The volume of each marble is 0.5 ml. The volume after dropping 13 marbles is 14.5 ml.
VolumeThe volume of an object is the amount of space occupied by a three dimensional object.
A graduated cylinder can be used to measure the volume of a cylinder. Given that After dropping in 4 marbles, the height is 10 ml and After dropping in 6 marbles, the height is 11 ml.
Hence:
Volume per marble = (11 ml - 10 ml) / (6 - 4) = 0.5 ml
The volume of each marble is 0.5 ml.
If the initial volume is 8 ml, after 13 marbles, height = (8 ml + 0.5 * 13) = 14.5 ml.
Find out more on Volume at: https://brainly.com/question/1972490
Can sides of a triangle have lengths 1, 13, and 14 ???
Answer: Yes it can!
Step-by-step explanation:
This is called a scalene triangle, where all 3 sides are different lengths.
The weight of 4 eggs is shown. Identify the constant of proportionality of total weight to number of
eggs.
The weight of 4 eggs is 188 g
Answer:
47g
Step-by-step explanation:
5k(k-9)=0 solve for k
Step-by-step explanation:
5k²-45= 0
5k²= 0 +45
k²= 45/5
k²= 9
or
k = 9/2 = 4.5
There are 645 students at Tech Middle School, and
20% of the students are th graders, How rising
Students are 7th graders? ?
Answer:
.20
Step-by-step explanation:
The word percent literally means "Out of 100". With that being said, 20% can be written as a fraction, mixed number or whole number as follows: 1/5 (fraction), 20/100 (mixed number) or .20 (whole number).
Which number line shows the solution to the inequality 4x + 5 >9?
Answer:
C.
Step-by-step explanation:
3. Adam bought 3 pens and 4 pencils for $4.25. Lily bought 2 pens and 6 pencils for $4.50. How much is a pen? a pencil?
A teacher is interested in students' opinions about an upcoming school dance. Which of the following techniques
uses systematic random sampling?
Survey the first 10 students who arrive.
Survey every 10th classroom as the teacher walks down the hallway.
Survey the 10th student arriving at school (with the number 10 being randomly chosen), then survey every 12th
student after that
O Survey the 10th student arriving at school (with the number 10 being randomly chosen), then survey every other
boy and every other girl after that.
Answer:
think its c but not sure
Step-by-step explanation:
because it repeats its self to get i sample
Answer and Step-by-step explanation: yes it's C i got it right so did the person above me
If 25 percent of your classmates have cats, and your class has 20 students, how many students have cats? (I have to show my work)
Answer:
5 students.
Step-by-step explanation:
25% is a quarter of the amount, or 1/4. A quarter of 20 is 5, since 4 times 5 is 20. So 5 students have cats.
Ellie bought 10 packages of cat food and 8 packages of dog food. Each package of cat food contained 9 cans, and each package of dog food contained 5 cans. How many more cans of cat food than dog food did Ellie buy?
A box contains 2 red marbles, 3 white marbles, 4 green marbles, and 1 blue marble find the probability of selecting a white marble in the first draw and a red marble in the second draw
Answer:
Answers
Selecting a green marble on the second
draw if the first marble is blue.
Answer:
Selecting a white marble on the first
draw and red marble on the second
draw.
Answer:
Selecting a red marbles on both draws.
Answer:
Selecting a red or white on the first
draw and green or blue on the second
draw.
Answer:
Selecting a white marble on the first
draw and a white or blue on the second
draw.
Step-by-step explanation:
hello please help i’ll give brainliest
Pls give answers to these I will mark branliest
Answer:
I can answer the first 5 for you :)
1: 1,019,536
2: 892,850
3:20,215,692
4:274,728
5:227,376
Have a great day!!!!
If the number of bacteria in a colony doubles every 27 hours and there is currently a population of 2,000 bacteria, what will the population be 54 hours from now?
I need 5
This is the picture..
Answer:
What are the options?
CPCT?
A bookcase contains these books. 36 cookbooks 17 autobiographies
39 novels 22 reference books One book is selected at random from the bookcase. Based on the information, which statement is true?
A The book is twice as likely to be a cookbook as a reference book.
B The book is just as likely to be a novel as it is to be an autobiography or a reference book.
C. The book is more likely to be a cookbook than a novel.
D. The item is half as likely to be a reference book as a novel.
Answer:
A
Step-by-step explanation:
The number of guests, g, coming for dinner
is not 8
Answer:
g < 8
rip 5 days ago
Can anyone help me with #3 and #4 and #6 please I will give brainlist!!
Answer:
3. 15.02
4. 84.05
6. 4,301
Step-by-step explanation:
I'm not too sure how to explain this, but those are the answers.
What is the difference between the number of solutions for a two-step equation and for a two-step inequality
Answer:
A two-step equation is something like:
A*X + B = C
In this case, like in a linear equation, we have only one solution that can be found as:
A*X = C - B
X = (C - B)/A
In the case of a two-step inequality, we have something like:
A*X + B > C
Solving this we get;
A*X > C - B
X > (C - B)/A
In this case, any value of X that is larger than (C - B)/A is a solution, so in this case, we have infinite solutions.
That is the difference between the number of solutions for each case, in a two-step equation we have only one, while in the case of the inequality we have infinite.
Which of the following are parallel to
y = 3x – 2
(Choose all that apply)
y = 5 – 3x
Y= 3x
y = 3x – 1
y = 3x – 4
y = -3x
Answer:
y=3x-1,y=3x-4
Step-by-step explanation:
y=mx+c
where is gradient, parallel lines have same gradient
y=5-3x
=-3x+5
m=-3
y=-3x
m=-3
y=3x-1
m=3 ,the gradient is equal to the original equation
y=3x-4
m=3,the gradient also equal to the given equation
R and S represent positive integers on a number line
and R< S. Which of the following could be the
positions of R and S?
Answer:
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
S is greater than R and they say they are both postive so it has to be on the right side of zero on the number line
Please help fast!
Solve 2/3x-1/5>1
X>?
Answer:
x > 9/5
Step-by-step explanation:
2/3 x - 1/5 > 1
15 × 2/3x - 15 × 1/5 > 15 × 1
10x - 3 > 15
10x > 18
x > 18/10
x > 9/5
A store at the mall is having a sale of 30% off all coats, "c". The expression 0.7c describes the discounted price in dollars for a coat. Which expression also describes the discounted price in dollars, for a coat?
A. 0.7c
B. c - 0.7c
C. c - 0.3c
D. c - 0.3
Answer:
c
Step-by-step explanation:
Last night, Jasmine and her family went out for dinner. The questions below came up on their way to the restaurant or during the meal. Decide whether or not each question is a statistical question. Select all that apply.
●How far are we from the restaurant?
●How long will it be until we get there? ●Would you rather have burgers or pizza?
●How much should we leave for the tip? ●What was the most frequently ordered dish in the restaurant this evening?
●Did you like the pizza tonight?
●Which table's bill was the highest?
●How many people were sitting at each table this evening?
A statistical question is a question where the data collected can vary.
Ex. Statistical - "How old are the students in my class?" The data can vary based on which student you ask.
The following questions are statistical:
●Would you rather have burgers or pizza?
●How much should we leave for the tip?
●Did you like the pizza tonight?
●How many people were sitting at each table this evening?
These questions can vary based on who you ask or where you look
I hope this was helpful! =)
A large bag of marbles contains red (R) and blue (B) marbles. Marbles are pulled one at a time, recorded, and placed back in the bag. Estimate the percentage of blue marbles in the bag.
R R R B R R R R R R B R R R B
A. 60%
B. 80%
C. 25%
D. 20%
Answer: 20%
Step-by-step explanation:
3/15= 1/5= 20%
Someone please help me, use a variable to represent the situation, and solve the equation using inverse operations.
The length of an average toucan is about two thirds the length of an average macaw. Toucans are
about 24 in. long.
Answer:
36 in
Step-by-step explanation:
T= toucan
M= macaw
T= 2/3M
T= 24
24= 2/3M
72=2M
36= M
Length of macaw be x
24=2/3(x)2x=72x=72/2x=36inhelpppp needed
tysm for everyone helping btw :)
i put points at 35 xx
Answer:
10ft.
Step-by-step explanation:
1yd = 3ft.
3yd = 9ft. + 1ft= 10ft.
Answer:
I think the answer is 3.04800
or just 10ft.
help I don't understand
Answer:
Sequence: Reflection over the y-axis, then 1 to the right and 2 down to get the triangle ABC to A'B'C.
Step-by-step explanation:
Have a nice day!
Gabe needs to cut an 8-foot piece of plywood into 16 equivalent pieces for a fence.
Answer:
0.5 ft or 6 in
Step-by-step explanation:
Simply do 8/16, each piece is half a foot (6 inches) long
Answer:
6 inches.
Step-by-step explanation:
First, we know that 8 feet is equal to 96 inches.
96/16 = 6.
So 6 inches per fence post.
Hope this helps!
Dillon deposited 3/4 of his paycheck
into the bank. The deposit slip shows how much he deposited.($46.50)
Write and solve an equation to find the amount of his
paycheck.
Equation:
Solution:
Answer:
His paycheck was $62.
Step-by-step explanation:
3/4 x = 46.5
x = 46.5 * 4/3
x = 62
Equation: 3/4 x = 46.5
Solution: x = 62