Answer:
-7n + -8
= -7n - 8
= -(7n + 8)
Step-by-step explanation:
brainliest plz
Someone plz help me :(
Answer:
D
Step-by-step explanation:
The half-life of a particular element is 6 days. If you begin with 36 grams of the element write an exponential decay function that models the decay of the element. Let t =1 represent one half life (or 6 days).
How much of the element is left about 24 days?
Answer:
2.25 grams
Step-by-step explanation:
A student took a total of 4 tests over the course of 8 weeks. How many weeks of school will the student attend to take a total of 20 tests?
Answer:
4/8 = 20/x
20 x 8 = 160
160 ÷ 4 = 40
the student will attend 40 weeks of school
Photo is attach
help me you will get a great thing if you help me
Answer:
11, 13,15 8, 11, 14 op = 2,3
16, 12, 8 17. 14, 11 op = -4,-3
3, 7, 15 24, 16. 12 op 4,4 because difference = op 4, 8 = 4 op -8, -4 = 4
Step-by-step explanation:
9+ 2 = 11, 13,15 ordered pair 2
5+ 3 = 8, 11, 14 ordered pair 3
20-4 = 16, 12, 8 ordered pair -4
20-3 = 17. 14, 11 ordered pair -3
1 x 2 +1 = 3, 7, 15 ordered pair 4, 8 = 4
40 / 2 + 4 = 24, 16. 12 ordered pair -8, -4 = 4
PLS HELP ON TIME LIMIT WILL MARK BRAINILEST
Answer:
Angles 2, 3, 4, and 5
Step-by-step explanation:
- angle 5 is a vertical angle to the given angle
- angle 4 is an alternate interior angle to the given angle
- angle 3 is a corresponding angle to the given angle
- angle 2 is a consecutive interior angle to the given angle
hope this helps!
4. The curve C, has equation y
on where a is a positive constant. The curve C, has
equation y
(x - b), where b is a positive constant.
a) Sketch C, and C, on the same set of axes. Label any points where either curve meets the
coordinate axes, giving your coordinates in terms of a and b.
(4)
b) Using your sketch, state the number of real solutions to the equation x(x – 5)=- 7.
(1)
Answer:
find your Answer in this link below www.soloplay
What’s a domain and range of a graph
Answer:
Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values, which are shown on the y-axis.
Answer:
it's the input and output of a graph, or the x and y coordinates. domain being x, and range being y.
REPOST* which equation or inequality shows the relationship between the plotted points on the number line
A. -4 > 3
B. -4 > -3
C. 3 > -4
D. 3 < -4
Answer:
C
Step-by-step explanation:
3 is positive and -4 is negative, so 3 is to the right of 0 and -4 is to the left of 0
A parabola has a vertex of (3, –2) and a y-intercept of 7. What is the equation of this parabola?
1) y = 2(x - 2)^2 - 1
2) y = (x - 3)^2 - 2
3) y = (x + 1)^2 + 7
4) y = [tex]\frac{8}{9}[/tex](x + 3)^2 - 1
Answer:
2) y = (x - 3)^2 - 2
Step-by-step explanation:
y = -2
x = 3
roy gets 10% extra time in school exams. If Roy gets 1 hour 33 minutes and 30 seconds to complete his maths exam, how long do most students get.
Answer:
1 Hour 25 Minutes
The time that most of the students get is 1 hour and 25 minutes, computed using fractions and percentages.
What are fractions?Fractions are a relational representation of certain parts of a quantity, to the total parts of that quantity.
Written as a/b, read as "a by b", functions as a divided by b, represents a fraction a over b, where a is the numerator and b is the denominator.
What are percentages?Percentages are a fractional representation of a quantity, where the whole quantity is fixed to be 100.
Fractions are converted to percentages by multiplying them by 100, while percentages are converted to fractions by dividing them by 100.
How to solve the question?In the question, we are informed that Roy gets 10% extra time in school exams.
We are asked for the time that is given to most of the students if Roy gets 1 hour 33 minutes and 30 seconds.
For standardization, we work in seconds.
We assume the required time to be x seconds.
Time given to Roy:
30 seconds implies 30 seconds,
33 minutes implies 33*60 = 1980 seconds,
1 hour implies 1*60*60 = 3600 seconds.
Thus, the total time given to Roy = 30 + 1980 + 3600 = 5610 seconds.
We are informed that Roy gets 10% extra time in school exams.
Thus, the time given to Roy = Normal time + 10% of normal time,
or, 5610 = x + 10% of x,
or, 5610 = x + 10/100 of x {percentages are converted to fractions by dividing them by 100},
or, 5610 = x + x/10,
or, 5610 = 11x/10,
or, x = 5610*10/11 = 5100.
Thus, the time given to most of the students = 5100 seconds = 5100/60 minutes = 85 minutes = 1 hour and 25 minutes.
Thus, the time that most of the students get is 1 hour and 25 minutes, computed using fractions and percentages.
Learn more about fractions and percentages at
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Find product of (5 x 10⁶) and (5 x 10⁷) ? Write your final answer in scientific notation.
Answer:
[tex](5 x 10⁶)× (5 x 10⁷) [/tex]
[tex]5000000×50,000,000[/tex]
[tex]25000000000000[/tex]
Step-by-step explanation:
Thanks!!!!!!
Answer:
2.5 * 10^14
Step-by-step explanation:
(5 x 10⁶) * (5 x 10⁷)
= (5 * 1000000) * (5*10000000) Step 1
tip : When multiplying tens with exponents, consider adding zeros according to the exponent the 10 is raised to. For example, 10⁶ would be 1000000 (six zeros)
= (5000000) * (50000000) Step 2
= 250000000000000. Step 3
= 2.5 * 10^14 Step 4 move your decimal point to the left (14 times) until you you condense your value into a smaller decimal (2.5)
A professor divided the students in her business class into three groups: those who have never taken a statistics class, those who have taken only one semester of a statistics class, and those who have taken two or more semesters of statistics. The professor randomly assigns students to groups of three to work on a project for the course. 65% of the students have never taken a statistics class, 15% have taken only one semester of a statistics class, and the rest have taken two or more semesters of statistics. Round your answers to three decimal places.
a. What is the probability that the first groupmate you meet has studied at least two semesters of statistics?
b. What is the probability that the first groupmate you meet has studied some statistics?
c. What is the probability that neither of your two groupmates has studied any statistics?
d. What is the probability that your two groupmates have studied at least one semester of statistics?
e. What is the probability that at least one of your two groupmates has studied more than one semester of statistics?
Answer:
Step-by-step explanation:
a;23
b;23
c97
d18
e29
90% as a decimal simplified
Answer:
0.9
Step-by-step explanation:
Answer:
The answer is 0.9
Step-by-step explanation:
90% = 0.9 in decimal form.
90 ÷ 100 = 0.9%
Can someone plss help me with this!!!
Answer:
The Aleutian Islands are a convergent boundary.
The Mid-Atlantic Ridge is a divergent boundary.
The San Andreas Fault is a transform boundary.
Step-by-step explanation:
PLZ HELP!!!!!!!
Identify two angles that are marked congruent to each other on the diagram below. plz answer quickly!!!!!
what is Twenty-three and sixteen hundredths as a fraction
PLS HELPPPPPPP Which expression is equivalent to 7t+6w−4t+2w?
3t+8w
11tw
13t−2w
11t−8w
Answer:
3t + 81
Step-by-step explanation:
1. First, let's simplify 7t+6w−4t+2w
[tex]7t + 6w - 4t + 2w[/tex] [tex](7t - 4t)+(6w+2w)[/tex] [tex]3t + 8w[/tex]2. As you can see, the first choice matches with our solution.
Therefore, 3t + 81 is equivalent to 7t+6w-4t+2w.
Answer:
[tex] \sf \: a) \: 3t + 8w[/tex]
Step-by-step explanation:
Now we have to,
→ Find the equivalent expression.
The expression is,
→ 7t + 6w - 4t + 2w
Let's simplify the expression,
→ 7t + 6w - 4t + 2w
→ 7t - 4t + 6w + 2w
→ (7t - 4t) + (6w + 2w)
→ (3t) + (8w)
→ 3t + 8w
Hence, the answer is 3t + 8w.
Which equation has both 7 and -7 as a
possible value of x?
A. X^2=14
B. x^3=14
C. X^3=49
D. X^2=49
Answer:
D. X^2=49
Step-by-step explanation:
X= -4 or X=7
X^2=(-7)^2=49
or
X^2=(7)^2=49
Help plz stuck on this question
Answer:
It is 54 degrees
Step-by-step explanation:
Since x is corresponding to the angle below 126, that means that 126 and x are supplementery. So 180-126=54
Hope this helps!
x+2y=8 slope intercept form plz
Answer:
y = -1/2x + 4
Step-by-step explanation:
= x + 2y = 8
= 2y = 8 - x
= y = 4 - 1/2x
= y = -1/2x + 4
*maybe
SOMEONE HELP ME FIND THE Y PLEASE ASAP ITS DUE TOMORROW I REALLY NEED HELP WORTH BRAINLIEST AND 100 points
Answer:
Step-by-step explanation:
yw give me brainiest lol
Answer:
Answer is in the picture. hope it helps
Solve for x. Show each step of the solution.
4.5(8 −)+ 37 = 103 − 2.5(3 + 24)
PLEASE HELP!!!!!
Answer:
simplify 36 - 4.5x + 36 to -4.5x + 72
simplify 102 - 7.5x - 60 to -7.5x + 42
add 7.5x to both sides
simplify -4.5x + 72 + 7.5x to 3x + 72
subtract 72 from both sides
simplify 42 - 72 to -30
divide both sides by 3
simplify 30/3 to 10
Answer: x = -10
hiiiiiii CAN U HELP ME PLS ILL GIVE BRAINLIEST 5 STARS AND A THANKS I HAD A ROUGH DAY AND MY BRAIN WONT WORK :C SORRY THERES NOT A LOT OF POINTS
Answer:
rate of change= x= 4 y= 20
slope= rise/run= change in y values/change in x values
slope= 20/4
i believe this is right, i could be wrong, i haven't done it in a long time.
(3x^2)^2/3
Will give 50 points
Answer:
4.26
Step-by-step explanation:
3^2= 9
2/3= .66
9^.66
[tex]\\ \rm\Rrightarrow (3x^2)^{2/3}[/tex]
[tex]\\ \rm\Rrightarrow 3x^{2\times 2/3}[/tex]
[tex]\\ \rm\Rrightarrow (3x)^{4/3}[/tex]
[tex]\\ \rm\Rrightarrow \sqrt[3]{3^2x^4}[/tex]
[tex]\\ \rm\Rrightarrow \sqrt[3]{9x^4}[/tex]
Fran loves animals and has seven different types of dogs living with her. She likes to keep them fit and healthy, so walks one dog per day from Monday to Sunday. Her Kelpie is walked three days after her Poodle and two days before her Rottweiler, which is walked a day before her Labrador. She walks her Terrier four days after her Poodle. Her German Shepherd is walked one day before her Chihuahua, which is four days before her Labrador.
If Fran walks her Kelpie on Thursdays, on which day does she walk her Labrador?
Answer:
Step-by-step explanation:
7 days a week
sunday kelpie walked
three days after that wedensday poodle walked
two days before the poodle is tuesday rotweiler walked
day before rotweiler is monday labradore walked
4 days before poodle is saturday terrier walked
german shepard walked friday
chihuahua walked thursday
Directions: Solve for x, then find each angle measure.
The sum of all three interior angles of a triangle is 180° thus the measure of x for the given triangle is 8 therefore,∠E = 75°,∠D = 38°, and ∠F = 67°.
What is a triangle?A triangle is a 3-sided shape that is occasionally referred to as a triangle. There are three sides and three angles in every triangle, some of which may be the same.
It is known that the sum of all three angles inside a triangle will be 180°.
Therefore, ∠E + ∠F + ∠D = 180°.
Given that, ∠E = 9x + 3,∠F = 11x -21 and ∠D = 5x - 2
So, 9x + 3 + 11x - 21 + 5x - 2 = 180
25x - 20 =180
25x = 200
x = 8
So,
∠E = 9(8) + 3 = 75°
∠F = 11(8) - 21 = 67°
∠D = 5(8) -2 = 38°
Hence "The sum of all three interior angles of a triangle is 180° thus the measure of x for the given triangle is 8 therefore,∠E = 75°,∠D = 38°, and ∠F = 67°".
For more about triangles,
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X/4+1=9
What would x be
Answer:
X=45
Step-by-step explanation:
X/4+1=9
X/5=9
X=9×5
X=45
:)
Answer:
x/4 =9-1
x/4=8
x=8*4
x=32
Can you solve it please
Answer:
x = 10
Step-by-step explanation:
1. First, we should recognize that 6x and 5x + 10 are corresponding angles, meaning they occupy the same relative position. They're also congruent.
This means that 6x = 5x + 102. (Solving)
Step 1: Subtract 5x from both sides.
[tex]6x - 5x = 5x + 10 - 5x[/tex] [tex]x = 10[/tex]Step 2: Check if solution is correct.
[tex]6(10)=5(10)+10[/tex] [tex]60 = 50 + 10[/tex] [tex]60 = 60[/tex]Therefore, x = 10.
3.) A linear function passes through the points (0, 2) and (-4,0).
a) What is the x-intercept?
b) What is the y-intercept?
c) What is the slope?
Please help ASAP
Answer:
Step-by-step explanation:
The x-intercept is where y is 0.
The y-intercept is where x is 0.
The x-intercept would be (-4, 0) and the y-intercept (0, 2)
Using the slope formula, (y2-y1/x2-x1), we can find the slope which is 1/2.
Jake had 40 goats. 15 goats were sold at the market. What fraction of the goats did Jake sell?
Answer:
15/40
Step-by-step explanation:
goats sold over total goats
Answer:
37.5% was sold