Answer:
45
Step-by-step explanation:
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Answer:
45
Step-by-step explanation:
PLZZZ HELPPP!!!!!!!!!!
Hello!
[tex]\large\boxed{2x + y = 3}[/tex]
Begin by finding the slope that would be perpendicular to the given equation.
A perpendicular line has a slope that is the opposite reciprocal of the original. Therefore:
1/2 --> -2
Find the answer choice that contains a slope of -2 when rewritten in the form y = mx + b:
Choice 1:
x + 2y = 2
Move x to the other side:
2y = -x + 2
Divide both sides by 2:
y = -1/2x + 1. This choice is incorrect.
Choice 2:
x - 2y = -12
Move x to the other side:
-2y = -x - 12
Divide both sides by -2:
y = 1/2x + 6. This choice is incorrect.
Choice 3:
2x + y = 3
Move 2x to the other side:
y = -2x + 3. This contains a slope of -2, which is correct.
Choice 4:
y - 2x = -5
Move -2x to the opposite side:
y = 2x - 5. This contains a slope of positive 2, so it is incorrect.
The correct answer is 2x + y = 3.
Answer:
D. y-2x=-5
Step-by-step explanation:
which of the following represents a funcation ?
Answer:
A.
Step-by-step explanation:
B. (-1,1) (-1,-5) ... can't pass vertical line test
C. (-1,7) (-1,1)
D. (3,2) (3,4)
Find the period of the graph shown below.
Answer:
π/2
Step-by-step explanation:
Find the period of the graph shown below.
Total time to complete one oscillation is called the period.
The total number of oscillations in the graph is 7 oscillations:
Hence;
7 oscillations = 3π + π/2 = 7π/2
To get the period, we want to know thw angle it takes to complete just one oscillation that is;
1 oscillation = x
Divide both equations:
7/1 = (7π/2)/x
7x = 7π/2
14x = 7π
x = 7π/14
x = π/2
Hence the period of the wave is π/2
A ball is thrown into the air with a velocity of 102 feet per second
Answer:
and what are you needin to find out
Step-by-step explanation:
According to Greg, perfect cherry pies have a ratio of
240 cherries to
3pies.
How many cherries does Greg need to make
9 perfect cherry pies?
> Question 8
Simplify 7d-5+9c-c-3-4d
>
Question 9
Simplify
5h+3-9g+h-g+7
Answer:
Step-by-step explanation:
here you go mate
Question 8
step 1
7d-5+9c-c-3-4d equation
step 2
7d-5+9c-c-3-4d expand equation
7d+-5+9c+-c+-3+-4d
step 3
7d+-5+9c+-c+-3+-4d combine terms
answer
8c+3d-8
Question 9
step 1
5h+3-9g+h-g+7 equation
step 2
5h+3-9g+h-g+7 expand
5h+3+-9g+h+-g+7
step 3
5h+3+-9g+h+-g+7 combine the terms
answer
-10g+6h+10
can i have brainliest if you dont mind?
Luke ate a snack with 91 total calories. If the chips he ate were 41.2 calories,how many calories were in the rest of his snack?
Answer:
49.8 calories were left!!!
Step-by-step explanation: Just subtract 91-41.2!
Algebra 2. solve each equation. remember to check for extraneous solutions
(p-2)/(p-4)=(p^2-6P)/(P-4) - (P+5)
Answer:
p=11/4
Step-by-step explanation:
Solve the rational equation by combining expressions and isolating the variable p .
Which of these expressions is equivalent to -2(x−5)?
-2x−5
-2x+5
-2x+10
-2x−10
Answer:
c. -2x+10
Step-by-step explanation:
distributive property
(-2)x-(-2)5= -2x-(-10)
keep change change
-2x+10
where the answer is -2x+10
Answer:
-2x-10
Step-by-step explanation: so WE CAN SLOVE THIS EQUATION BY distrubutive property, -2 times x = -2x, we got 1 part of the equation. Now we distrubute -2 and -5.
-2 x -5 = -10.
So we get = -2x-10
Is the quotient for 36 ÷ 0.6 greater than or less than 36? Explain your answer
Answer: Greater than
Step-by-step explanation:
36/0.6 = 60
60 is more than 36
Solve: 3,125 = 5–10 + 3x
Answer:
x = 3130/3
Step-by-step explanation:
3125 -5 +10 = 3X
3130 = 3x
x = 3130/3 or 1043 1/3
Help me please 40 points for this math question
Answer: The answer is C
Step-by-step explanation:
M is the midpoint of AN, A has coordinates
(7,-4), and M has coordinates (3,2). Find
the coordinates of N.
Explain??
A puppy's weight increases by 15% each week for the first 6 months. The puppy currently weighs 3.7 pounds. Which expression will not calculate how much the puppy will weigh in 1 week?
Answer:
y=3.7+0.15(1)
Step-by-step explanation:
Note we are not given the options to choose from in this question, let us solve for the answer directly
Step one:
given data
The puppy's weight increases by 15% each week for the first 6 months
=0.15
The puppy currently weighs 3.7 pounds
Step two:
let the number of weeks be x
and the weight after x weeks be y
so
y= 3.7+0.15x
after 1 week the expression to calculate the weight is
y=3.7+0.15(1)
Zoe invest $600 in college savings account. The account earns 5.7% interest compounded quarterly. How many years will it take for Zoe's account to reach $7,000?
Answer:
43.407 years
Step-by-step explanation:
Zoe invest $600 in college savings account. The account earns 5.7% interest compounded quarterly. How many years will it take for Zoe's account to reach $7,000?
We are asked to find time t in a compound interest formula
The formula is given as:
t = log(A/P) / n[log(1 + r/n)]
A = Total amount = $7000
P = Principal = $600
n = number of times interest is compounded = Quarterly =4
r = Interest rate = 5.7% = 0.057
Hence,
t = log(7000/600) /4[log (1 + 0.057/4)]
t = 43.407 years
PLEASE HELPPPPPP I NEED IT DONE BY 3 OR 4
what is the slope of points (3,5) and (-1,-7)
Answer:
slope is 3
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
sin∅=√3-1/2 find approximate value of sec∅(sec∅+tan∅)/1+tan²∅
Answer:
The approximate value of [tex]f(\theta) = \frac{\sec \theta \cdot (\sec \theta+\tan \theta)}{1+\tan^{2}\theta}[/tex] is 1.366.
Step-by-step explanation:
Let [tex]f(\theta) = \frac{\sec \theta \cdot (\sec \theta+\tan \theta)}{1+\tan^{2}\theta}[/tex], we proceed to simplify the formula until a form based exclusively in sines and cosines is found. From Trigonometry, we shall use the following identities:
[tex]\sec \theta = \frac{1}{\cos \theta}[/tex] (1)
[tex]\tan\theta = \frac{\sin\theta}{\cos \theta}[/tex] (2)
[tex]\cos^{2}+\sin^{2} = 1[/tex] (3)
Then, we simplify the given formula:
[tex]f(\theta) = \frac{\left(\frac{1}{\cos \theta} \right)\cdot \left(\frac{1}{\cos \theta}+\frac{\sin \theta}{\cos \theta}\right) }{1+\frac{\sin^{2}\theta}{\cos^{2}\theta} }[/tex]
[tex]f(\theta) = \frac{\left(\frac{1}{\cos^{2} \theta} \right)\cdot (1+\sin \theta)}{\frac{\sin^{2}\theta + \cos^2{\theta}}{\cos^{2}\theta} }[/tex]
[tex]f(\theta) = \frac{\left(\frac{1}{\cos^{2}\theta}\right)\cdot (1+\sin \theta)}{\frac{1}{\cos^{2}\theta} }[/tex]
[tex]f(\theta) = 1+\sin \theta[/tex]
If we know that [tex]\sin \theta =\frac{\sqrt{3}-1}{2}[/tex], then the approximate value of the given function is:
[tex]f(\theta) = 1 +\frac{\sqrt{3}-1}{2}[/tex]
[tex]f(\theta) = \frac{\sqrt{3}+1}{2}[/tex]
[tex]f(\theta) \approx 1.366[/tex]
Tom has already baked 4 cakes, and he can bake 1 cake with each additional stick of butter he buys. How many additional sticks of butter does Tom need in order to bake a total of 42 cakes?
Answer in the number of additional sticks of butter.
Answer:
since it takes 1 additional stick to bake a cake,then it takes 84 additional sticks to bake 42 cakes
Complete the proof that AFGH isn't similar to AJIH.
Sorry for annoying you guys just need answers
What are the coordinates of the z- and y-intercepts in the equation 14x+ 8y=-56?
Answer:
Idkasd
Step-by-step explanation:
Keep trying
Answer:
the x-intercept is (-4,0)
the y-intercept is (0,-7)
Divide. Write your answer in fraction form.
(5x+ + 18x+ 15) / (x+2)
Answer:
what? it seems like you just spammed anything from the web O_o
Step-by-step explanation:
Given: Quadrilaterals ABCD ~ EFGH , with measure of angle A = 47 degrees, measure of angle B = 39 degrees, and measure of angle C = 112 degrees. Find: Measure of angle F and measure of angle H.
Answer:
The answer is below
Step-by-step explanation:
Two polygons are said to be congruent if they have the same size and shape that is their corresponding angles and sides are equal.
Hence since Quadrilaterals ABCD is congruent to EFGH, then their corresponding angles and sides are equal.
In quadrilateral ABCD:
∠A + ∠B + ∠C + ∠D = 360° (sum of angles in a quadrilateral)
Substituting:
47 + 39 + 112 + ∠D = 360
∠D + 198 = 360
∠D = 360 - 198
∠D = 162°
The image of Quadrilaterals ABCD and EFGH is not given but let us assume that they have the same orientation, hence:
∠A = ∠E = 47°
∠B = ∠F = 39°
∠C = ∠G = 112°
∠D = ∠H = 162°
−5w−2w+3w=9 whats w
help
Answer: w = -9/4
Step-by-step explanation:
After visiting the Titanic, Captain Brain and Mr. Pinky are taking the Alvin submarine back to the surface of the water. They start 2000 meters below the surface of the water, and ascend at 57 meters per hour.
Answer:
35.09hours
Step-by-step explanation:
Since we are not told what to find, we can as well look for the time it took to ascend
Given
Distance below surface of water = 2000m
Speed = 57m/hr
Required
Time
Using the formula;
Speed = Distance/Time
Time = Distance/Speed
Time = 2000/57
Time = 35.09hours
Hence it took 35.09hours to ascend
Select the correct answer.
Mateo teaches a continuing education class at the library on Tuesday nights. He estimates that 75% of his students are satisfied or very satisfied with the class.
Last week, he asked a random sample of students to take a survey on their experience in the class. However, the results showed that only 70% indicated that they are satisfied or very satisfied with the class. He decides to randomly survey more of his students. How will Mateo know whether his model is valid or not?
A.
It is valid if the result from all the surveys and the model get closer together.
B.
It is impossible to determine whether the model is valid.
C.
It is valid if the result from all the surveys and the model stay the same.
D.
It is valid if the result from all the surveys and the model get farther apart.
Answer:
A
Step-by-step explanation:
Getting closer together means that both are becoming more accurate.
A valid model is such model whose calculated value approximates to the actual value. If it doesn't approximate to the actual value, it must be close to the actual value.
The model is valid if the results from the survey are close enough, together.
Given that:
[tex]p_1 = 75\%[/tex] -- the actual estimation of satisfied students
[tex]p_2 = 70\%[/tex] -- the second estimation of satisfied students
For a model to be valid, the calculated value must be close to the actual value.
If after Mateo's survey of more students, the result of satisfied or very satisfied students is still close to 75%, then Mateo's model is valid.
If otherwise, then the model is invalid.
Read more at:
https://brainly.com/question/731147
evaluate the expression 9!/6!
A: 54,000
B: 2!
C: 3/2
D: 504
Answer: D) 504
Step-by-step explanation:
9! = 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1
6! = 6 x 5 x 4 x 3 x 2 x 1
Using this, we can rewrite the initial expression as:
9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 / 6 x 5 x 4 x 3 x 2 x 1
We can see that 6 x 5 x 4 x 3 x 2 x 1 is in both the numerator and the denominator, so we can cancel it out, leaving us with 9 x 8 x 7 which equals 504.
Last year, Mr. Smith's biology class averaged 73 on their first test. This year, his new class averaged 87 on the same
test. Based on these results, is it reasonable to conclude that this year's class is more intelligent?
Yes, a grade of 87 is higher than a grade of 73.
Yes, the study was done in an academic setting.
No, the experiment was not double-blind.
No, there was no use of a placebo in the experiment.
No, there may be other differences between the two years besides the grades.
E. No, there may be other differences between the two years besides the grades.
This is because every kid is different and Mr. Smith might have just gotten a better group of kids the second year. This is just one factor of many viable options.
May I have brainliest please? :)
Here is a picture of a circle. Each square represents 1 square unit.
Explain why the area of the circle is less than 4 square units.
Answer:
No picture?
Step-by-step explanation:
i need a picture to anwser