Answer:
Molarity = 0.4 moles per Liter
Step-by-step explanation:
If you have 0.2 moles of NaCl in 0.5 L of solution, what is the molarity? (Round answers to the nearest hundredth)
The formula formula Molarity
= n/v
Where n = number of moles
v = volume in liters
Hence
Molarity = 0.2 moles/0.5L
= 0.4 moles per Liter
Ryan went bowling and had $25 to spend. It was $4 to rent shoes and $5 per game. Write & solve an Inequality to represent the maximum number of games he can play?
Answer:
it would be four games because take away the 4 dollars and then add 5x4 together
1 cm 12 cm 1 cm Find the volume of the rectangular prism.
Answer:
12 cm^3
Step-by-step explanation:
12 x 1 x 1 =12
The radius of a circle is 11 miles. What is the circle's area?
P=11 mi
Use 3.14 for n.
square miles
Submit
Answer:
The circle's area is 380.13 square miles.
Step-by-step explanation:
A = pie * r^2 = pie * 11^2 = 380.13
I hope this somewhat helped you find your answer.
Answer:
379.94
Step-by-step explanation:
3.14 x (11x11) = 379.94
Which expression is equivalent to 6^5⋅6/6^5?
a)36
b)6
c)0
d)1
Which value of x makes the equation 2 + 8 = 15
true?
Answer:
5
Step-by-step explanation:
Answer:
x = 3 [tex]\frac{1}{2}[/tex]
Step-by-step explanation:
there's no x in the equation you wrote.
Did you mean?
2x + 8 = 15
Subtract 8 from both sides
2x = 7
Divide both sides by 2
x = 7/2
x = 3 [tex]\frac{1}{2}[/tex]
Elijah and Jonathan play on the same soccer team. They have played 3 of their 15 games. They each create a model to represent x, the number of games their team has left
to play. Their models are shown below. Explain whether each model is correct.
PLS PLS PLS HELP
what are the optionsss??
Jacob is traveling to North Carolina for vacation. He travels a total of 456 miles in 8 hours, what is his average speed?
Answer:
57 miles per hour
Step-by-step explanation:
Find his average speed by dividing the total of miles he traveled by the number of hours:
456/8
= 57
So, this means he traveled 57 miles in one hour.
His average speed was 57 miles per hour
Choose the equation of the line that is equal to the x-axis.
A x=4
B x+y=0
C x=y
D y=4
If anyone could help, I'd really appreciate it!
Answer:
C) x=y
hope it helps.
stay safe healthy and happy.Of the 68 students on a field trip 17 students bring a camera. What percent of the students bring cameras?
Answer: 25%
Step-by-step explanation:
Given
Total students on a field trip are 68
Out of 68, only brings the camera
The percentage of students that bring the camera is given by
[tex]\Rightarrow \dfrac{17}{68}\times 100\\\\\Rightarrow \dfrac{1}{4}\times 100=25\%[/tex]
Thus, only 25% of students bring a camera.
how much metal is needed to create a trash can with a height of 4 feet and base radius of 1 foot
Answer:
A ≈ 31.42
Step-by-step explanation:
Help please I need help on this
Answer:
A & C
Step-by-step explanation:
for A - and + is always -
so 2.3-2.3 =0
for C - and - is always + so
-2.6--124 = -2.6+124
=121.4 which is positive
how do whether an angle is complementary or supplementary ?
Answer:
Two supplementary angles = 180°
Two complementary angles = 90°
Answer:
Supplementary angles add up to 180°
Complementary angles add up to 90°
Step-by-step explanation:
Complementary means they add up to 90°, supplementary means they add up to 180°
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
10
5
x
-10
-5
0
5
10
-10
hat is the equation of the axis of symmetry?
find the measure of x in the figure. show your work. answer asap please
Answer:
A straight line is 180° , so if you subtract 60 from 180 you get 120, and you divide 120 by 6 so the answer is 20
Answer:
x= 20
Step-by-step explanation:
Both angles form a linear pair = 180 o
6x+60 = 180
6x = 120
x = 20
6x20 +60 = 180
120 +60 = 180
PLEASE HELP ME ON THIS
Answer:
BStep-by-step explanation:
it increased by two inches from noon to 1pm and increased another two inches from 3pm - 4pm
which number is equivalent to 1/9?
Find all the missing angles, pls help it’s due soon
What is 14 times 3
— ?
5
please hurry i need help
Answer: 37
Step-by-step explanation: 14 x 3 = 42
42 - 5 = 37
which options below has a negative value?
-0.25
-1.5
-(4.5)
-19.5
An arithmetic progression consists of 37 terms. The sum of the first 3 terms of
it is 12 and the sum of its last-3 terms is 318, then find the first and last terms
of the progression.
Answers:
First term = 1Last term (37th term) = 109=======================================================
Explanation:
a1 = first term
a2 = second term
a3 = third term
and so on, until we reach a37 to represent the 37th term
We don't know the first term, but we'll call it x for now. We'll also let d be the difference between each adjacent term, aka the common difference.
Meaning that,
a1 = xa2 = a1+d = x+da3 = a2+d = (x+d)+d = x+2da4 = a3+d = (x+2d)+d = x+3dand so on, until,
a35 = x+34da36 = x+35da37 = x+36d---------------------
Add up the first three terms (a1 through a3) and set the sum equal to 12
Then do a bit of algebra to get
a1+a2+a3 = 12
(x)+(x+d)+(x+2d) = 12
3x+3d = 12
3(x+d) = 12
x+d = 12/3
x+d = 4
x = 4-d
Do the same for the last three terms, but the sum here is 318
a35+a36+a37 = 318
(x+34d)+(x+35d)+(x+36d) = 318
3x+105d = 318
3(x) + 105d = 318
3(4-d)+105d = 318 .... replace x with 4-d; isolate d
12-3d+105d = 318
102d+12 = 318
102d = 318-12
102d = 306
d = 306/102
d = 3
The common difference is 3. It means each term is increasing by 3.
Use this value of d to find x
x = 4-d
x = 4-3
x = 1
The first term is 1. That makes the second term x+d = 1+3 = 4, then the third term is x+2d = 1+2*3 = 7, and so on.
The sum of the first three terms is 1+4+7 = 12. That helps partly confirm the answer.
Also we have,
a35 = x+34d = 1+34(3) = 103a36 = x+35d = 1+35(3) = 106a37 = x+36d = 1+36(3) = 109 is the last term (37th term)Or you could note that the 35th term is 103, and then you increase by 3 each time to get the remaining two terms.
The last part of the confirmation is adding up those three last terms: 103+106+109 = 318, so the answer is fully verified at this point.
Side note: An arithmetic sequence never ends. There technically is no "last term"; however, since we're confined to focusing on these specific 37 terms, we can get away with using the phrasing.
3) Determine the numbers of solutions for 4x + 8 = 12x.
Answer:
x = 1
Step-by-step explanation:
4x + 8 = 12x
4 (1) + 8 = 12 (1)
4 + 8 = 12
12 = 12
your answer is x = 1
Answer:
4x+8=12x
8=8x subtract 4 on both sides
1=x divide by 8 on both sides
hopes this helps
have a good day :)
Step-by-step explanation:
HELP THIS IS DUE IN 4 MINSSSS
Answer:
1) 5
2) -6
3) -4x^2/y^3
Step-by-step explanation:
hope this helps u :D
Name the conic section formed when a plane cuts a right circular cone parallel to its base.
1) circle
2)parabola
3)ellipse
4) hyperbola
Will mark it the brainliest plsss fast!
Answer:
option 1.
circle
Step-by-step explanation:
A section is formed when a solid shape is sliced into two. A conic section is therefore formed when a cone, is sliced into two.
What determines the shape of the section now, is the angle at which the cone was sliced.
Normally, the base of a cone is a circle. If we slice a cone using a straight line, which runs parallel to its base, we will still get another perfect cone, but with a smaller height.
If we look at the flat portion of the cone after it has been sliced, we will see that the cross-section is a circle.
inequality:
-3 -6 (4x+6) > - 111
solve
Answer:
x < 3
Step-by-step explanation:
-3 - 6(4x+6) > - 111
-3 - 24x - 36 > -111
-24x - 39 > -111
-24x > -72
dividing by a negative flips the sign
x < 3
Will mark brainly nest if you know the answer and explanation
Btw I'm a weeb you?
Mary received an $80 gift card for a coffee store. She used it in buying some coffee that cost $8.21 per pound. After buying the coffee she had $30.74 left on her card. How many pounds of coffee did she buy?
Answer:
Mary bought 6 pounds of coffee
Step-by-step explanation:
80 - 30.74 = 49.26
49.26 divided by 8.21 =6
can somebody please help me??
The circumference is about ___ cm.
i would really appreciate it thank you
[tex]\sf\purple{Radius\:of\:the\:circle}[/tex] = 7 cm.
To find:-[tex]\sf\red{The\:circumference\:of\:the\:circle.}[/tex]
Solution:-[tex]\sf\blue{The\:circumference\:of\:the\:circle\:is\:43.96\:cm.✅}[/tex]
Step-by-step explanation:-
Let "r" be the radius of the circle.
We know that,
[tex]\sf\purple{Circumference\:of\:a\:circle}[/tex] =
[tex]2 \: \pi \: r \\ = 2 \times 3.14 \times 7 \: cm \\ = 43.96 \: cm[/tex]
[tex]{\boxed{\mathcal{\red{Hence,\:the\:circumference\:of\:the\:circle\:is\:43.96\:cm.}}}}[/tex]
[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]
Please help me I will give brainliest to the right person
Answer:
P(even,blue) = 3/6 x 1/9 which is 1/18
Step-by-step explanation:
Can someone plz help me with this one problem plzzzzz
It’s ratios not that hard plss help!!!
Answer:
24:16
Step-by-step explanation:
brainliest goes to whoever answers the question correctly also if you want more points answer my other questions
Answer:
A and B are functions
Step-by-step explanation:
for A, none of the x's repeat which makes it a FUNCTION
for B, when it starts with x^2, it will always be a FUNCTION (its a quadratic)
for C, 10 repeats for the x so it is NOT A FUNCTION