Answer:
15:1
Step-by-step explanation:
Find the value of y that makes the equation 2y = 12 – 5x true when x = -2.
A. 1
B. 2
C. 11
D. 22
Answer:
C 11
Step-by-step explanation:
2y = 12 – 5x
Let x = -2
2y = 12 - 5(-2)
2y = 12 +10
2y = 22
Divide by 2
2y/2 = 22/2
y = 11
Answer:
C11 is the correct answer
Step-by-step explanation:
Factor x^3 - 4x^2 + 7x - 28 by grouping. What is the resulting expression
Answer:
Step-by-step explanation:
x³ - 4x² + 7x - 28 = x³ - 4x² + 7x - 7*4
= x²(x - 4) + 7(x - 4)
= (x - 4 )(x² + 7)
Factor the polynomial completely.
x^2 + x + 3
Answer:
(x+2)(x+1)
Step-by-step explanation:
(x+2)(x+1), if you FOIL, you will get back to the original equation
Theresa is comparing the graphs of y=2x and y=5x. Which statement is true?
The y-intercept of y=2x is (0, 2), and y-intercept of y=5x is (0, 5).
Both graphs have a y-intercept of (0, 1), and y=2x is steeper.
Both graphs have a y-intercept of (0, 1), and y=5x is steeper.
Neither graph has a y-intercept.
Answer:
Both graphs have a y-intercept at 0,1. The y=2^x is steeper than y=5^x
Step-by-step explanation:
If you graph these on a graphing calculator you will clearly see they have the same y-intercept (0,1) and that y=2^x is steeper.
The correct option is option B that is both graphs have a common y-intercept of (0, 1) and y = 2x is steeper.
What is the intercept of a line ?
The point where the line or curve crosses the axis of the graph is called intercept. If a point crosses the x-axis, then it is called the x-intercept.
Theresa is comparing graphs of y = 2x and y = 5x
The y-intercept is the point where a graph crosses the y-axis. In other words, it is the value of y when x = 0.
Let's check
which is y = 2x.
For x = 0 , y = 0
for x = 1 , y = 2
So , here y-intercept will be (0,2)
So , for both the values y - intercept exists for first function which is y = 2x.
Similarly, for y = 5x , there will be a y -intercept of (0,5).
Both graphs have a common y-intercept of (0, 1).
We know that if the slope of the graph is steeper then we can say that the tangent of the angle made by it will be more and it will make more angle with the x axis.
Here , y = 2x is more steeper than y = 5x.
Therefore , the correct option is option B that is both graphs have a common y-intercept of (0, 1) and y = 2x is steeper.
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What is the answer to this?
Answer:
50 divided by 8 is 6.25 so unit rate is 6.25 per wands. The first one 4×6.25= 25 so it does not match the same price per wands, the second one 6×6.25=37.50 match up to the same price per wands, the third one 10×6.25=62.50 does not match up to the same price per wands.
Which statement is correct?
The range of the graph is all real numbers less than
or equal to 0.
The domain of the graph is all real numbers less than
or equal to 0.
O The domain and range of the graph are the same.
The range of the graph is all real numbers.
Answer:
The answer is D.
Step-by-step explanation:
You cannot have the range of a number in negative numbers. The range will always be in positive numbers, and the range will never be in a fraction.
The range of the graph is all real numbers.
Each domain and range are the set of all actual numbers. however, due to the fact, absolutely the fee is described as a distance from 0, the output can only be greater than or identical to zero. The domain is all real numbers since the horizontal extent of the graph is the complete real range line.
Why are the range all real numbers?For any actual quantity, you may continually find a price that gives you that wide variety for the output. Except a linear function is a regular, together, there's no restriction at the range. The domain and range are all real numbers.
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what is the length of CD
Answer:
20 yds.
Step-by-step explanation:
From C to E 10 yds. so if you double that you get 20 yds.
Brainliest plz
in the morning it takes father half an hour to dress, 15 minutes to eat breakfast, and 10 minutes to fix his lunch. if he starts at 7:00, what time will it be ready to leave to work?
Answer:
7:55
Step-by-step explanation:
30 for dressing added with 15 for eating , added with 10 to make lunch gives us 55 minutes.So 7:00 plus 55 minutes is our answer 7:55.
Plz help me I don’t really understand this topic
Answer:
2/7, 7/13, 5/9, 10/11
Step-by-step explanation:
I used benchmark fractions to determine the order of the fractions above. 2/7 is close to 0, so it is first. 7/13 is close to 1/2, but is less than 5/9, so it is second. 5/9 is also close to 1/2, but it is greater than 7/13, so it is third. 10/11 is close to 1, so it is last.
If this answer is correct, please make me Brainliest!
Answer:
From least to greatest, 2/7-7/13-5/9-10/11
Step-by-step explanation:
It is obvious that 2/7 is the least and 10/11 is the most, and two find out the two middle fractions you should cross multiply to see which is bigger.
7 5
___ and ___ so now you multiply the denominators together to get 117
13 9
so the fractions will become
7*9 5*13
___ and ___ and when u multiply them together you get 63 for 7/13 and 65
117 117
for 5/9, so 5/9 is bigger
is my answer correct? // im not really sure so I need help.
Answer:
I believe it is lol I'm sorry if Its wrong A just seems correct to me
Step-by-step explanation:
Which point lies on the y-axis
Answer:
the y axis is the vertical line the x axis is the horizontal lineStep-by-step explanation:
the y axis is the vertical line the x axis is the horizontal lineStep-by-step
Tamanika got a raise in her hourly pay, from $15.50 to $17.36. Find the percent increase
Answer:
12%
Step-by-step explanation:
The required percent increase is 12%
Tamanika got a raise in her hourly pay, from $15.50 to $17.36
What is percentage?percentage is defined as, composition of something out of whole inbounds of 100.
since = 17.36 - 15.50/15.50 x 100
= 1.86/15.50 x 100
= 0.12 x 100
= 12
Thus the required percent increase is 12%.
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Find the unit rate. Round to the nearest hundredth, if necessary.
$220 for 17 ft2
Answer:
12.94 for 1 ft squared
Step-by-step explanation:
You divide 220 by 17.
Answer:
$12.94
Step-by-step explanation:
For 17 ft² = $220
Unit rate = 220/17 = $12.94
Will give brainliest, What types of solutions will a quadratic equation have when the discriminant b^2−4ac in the quadratic formula is zero?
Two non real solutions
One real solution
Two real solutions
No solutions
Answer:
B
Step-by-step explanation:
When a discriminant is zero, the quadratic equation has one solution.
3/10
There is a group of tourists going to a museum. The group
consists of several adults and one child. A ticket for an adult
costs 10 dollars and one for a child costs 5 dollars. If the cost of
all tickets came to a total of $125, how many adults are there in
this group?
adults
Answer:
12 adults
Step-by-step explanation:
If a child ticket costs 5 dollars
then 125-5=120
120 divided by 10(the cost of each ticket for an adult)
12
So there are 12 adults
Answer:
12 adults
Step-by-step explanation:
125 - 5 = 120 (this is subtracting the child from the equation)
120 / 10 = 12
please answer this i’ll give you 15 points
Answer:
B
Step-by-step explanation:
you round 33 to 30 and 87 to 90
Answer:
Well I think it's B.. Sorry for the late answer.
Step-by-step explanation:
Victor has saved $89.25 for the bicycle that he wants. The bicycle costs $129.85. Victor
writes the equation below to help him determine x, the additional amount that he needs to
save to have enough to buy the bicycle.
89.25 + 129.85 = 2
Does Victor's equation correctly model the problem? Click the arrows to choose an answer from
each menu
An equation that correctly represents this problem can show that the sum of the
Choose.
and the
Choose...
is equal
to the
Choose
The equation Choose...
models this situation correctly. Victor's equation is
Choose
WILL MARK BRAINLIEST
Answer:
he should set up the problem so he can find the amount he has left to save. so 129.85 - 89.25 = X or the amount he needs.
he could also do 89.25 + X = 129.85
id probably use the second one
Answer:
yes i am doing this iready too lol this is right what the first person answered is correct
Step-by-step explanation:
Please help!!!
Which representations display nonlinear functions? Check all that apply.
On a coordinate plane, a line with negative slope goes through points (0, 1.5) and (2, 1).
On a coordinate plane, a parabola opens up.
A 2-column table with 4 rows. Column 1 is labeled x with entries 20, 21, 22, 23. Column 2 is labeled y with entries negative 1, negative 1.5, negative 2, negative 2.5.
A 2-column table with 4 rows. Column 1 is labeled x with entries negative 12, negative 11, negative 10, negative 9. Column 2 is labeled y with entries 7, 11, 14, 17.
Answer: its b and d
Step-by-step explanation: edge 2022
The answer would be options (B) and (D)
What is Parabola?A parabola is a U-shaped curve this is drawn for a quadratic function,
f(x) = ax² + b x + c. The graph of the parabola is downward (or opens down), when the price of a is much less than 0, a < 0. The graph of the parabola is upward (or opens up) when the value of a is more than 0, a > 0.
parabola, open curve, a conic segment produced via the intersection of a proper circular cone and a plane parallel to an element of the cone.
On a coordinate plane, a line with a negative slope goes through points (0, 1.5) and (2, 1)
So this is a linear function
On a coordinate plane, a parabola opens up.
Here this is a quadratic function, So this is a non-linear function
Hence, the answer would be options (B) and (D)
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Sage wants to order an ice-cream sundae.
The ice-cream parlor allows customers to
choose from 10 ice-cream flavors, 4 sauces,
and 4 toppings. How many combinations of
ice-cream sundaes could Sage choose from?
Enter the correct answer.
DONE
Julie earns $1800 each month and pays $450 a month for rent. What percent of her income goes toward her rent?
Answer: 25%
Step-by-step explanation:
450/1800
Answer:
25 percent is what percent of her income that goes towards her rent
prove that (tan²y) (cos²y) + 1/sec²y = 1
Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identities
tan x = [tex]\frac{sinx}{cosx}[/tex] , sec x = [tex]\frac{1}{cosx}[/tex] , sin²x + cos²x = 1
Consider the left side
tan²y × cos²y + [tex]\frac{1}{sec^2y}[/tex]
= [tex]\frac{sin^2y}{cos^2y}[/tex] × cos²y + [tex]\frac{1}{\frac{1}{cos^2y} }[/tex] ← cancel cos²y in the product
= sin²y + cos²y
= 1
= right side ⇒ proven
Step-by-step explanation:
[tex] (\tan^2y) (\cos^2y) +\frac{1}{\sec^2y} = 1\\
LHS
= (\tan^2y) (\cos^2y) +\frac{1}{\sec^2y} \\\\
\frac{\sin^2y}{\cos^2y}\times \cos^2 y + \cos^2 y \\\\
= \sin^2y + \cos^2 y \\\\
= 1\\\\
= RHS\\\\
\purple {\boxed {\bold {\therefore (\tan^2y) (\cos^2y) +\frac{1}{\sec^2y} = 1}}} \\[/tex]
Hence Proved
help help please!!!!!!!!!!!!!!!!
Answer:
1000 times
Step-by-step explanation:
900000 divide 900 equals 1000
Answer:
it would be 1000 times.
Step-by-step explanation:
All you have to do is find out how many zeros you can put before the 900 and then put a one after it. And don't mind all of the other numbers. They don't matter in this equation. Pretend they are all zeros.
900,000
000,900
You see how many zeros there are before the 900.
Then just add a one 1000
The quotient of 40 and the product of a number and -8
Answer:
-5
Step-by-step explanation:
making a sandwich with ham, turkey, or roast beef; swiss or provolone cheese; and mustard or mayonnaise. how many outcomes are there A. 14 C. 16 B. 12 D. 19
The answer is 12
Ham, swiss, mustard
Ham, swiss, mayonnaise
Ham, provolone, mustard
Ham, provolone, mayonnaise
Turkey, swiss, mustard
Turkey, swiss, mayonnaise
Turkey, provolone, mustard
Turkey, provolone, mayonnaise
Roast beef, swiss, mustard
Roast beef, swiss, mayonnaise
Roast beef, provolone, mustard
Roast beef, provolone, mayonnaise
−7(5x−8)
Expand the following Expression
Start by changing the -8 to plus a negative 8.
Now, the -7 distributes through the parentheses.
This gives us -7(5x) + -7(-8) which simplifies to -35x + 56.
What are all the numbers congruent to #1?
Answer: All angles are congruient to 1
Step-by-step explanation:
So first of all, that shape is a rectangle. All angles of a rectangle are 90 degrees. So all angles are equal.
Answer: it is 90
Step-by-step explanation: so they are all congruent
Which shape fits the description below?
A figure with at least one pair of parallel sides.
A. X
B. Z
C. X and Y
D.Y
Answer:C, X and Y
Step-by-step explanation:
I just took the test
To convert degrees Fahrenheit (F) into degrees Celsius (C) use the formula C=5/9(F-32) convert 50 degrees Celsius to Fahrenheit
Answer:
Step-by-step explanation:
C=5/9(F-32)
Or F-32=9/5C
Put C=50
F-32=9/5 ×50
F-32=90
F=90+32=122°F
Are x and y for both of them proportional
Answer:
yes
Step-by-step explanation:
in 13, both x and y are increasing by 1 correspondingly, and, in 14, both sides are multiplying by 2 together.
Find the volume of the sphere. Either enter an exact answer in terms of \piπpi or use 3.143.143, point, 14 for \piπpi and round your final answer to the nearest hundredth. the radius is 1
Answer:
Find the volume of the sphere.
Either enter an exact answer in terms of π or use 3.14 for π and round your final answer to the nearest hundredth.
The radius is 1
Volume = [tex]\frac{4}{3} \pi[/tex] or 4.19
Step-by-step explanation:
Given
Radius, r = 1
Required
Find the volume of sphere
Volume of a sphere is calculated using the following formula
[tex]V = \frac{4}{3} \pi r^{3}[/tex]
Where V = Volume and r = radius
By Substitution,
[tex]V = \frac{4}{3} \pi * 1^{3}\\\\V = \frac{4}{3} \pi * 1\\\\V = \frac{4}{3} \pi[/tex]
Solving further to get the numerical value of volume;
We have to substitute 3.14 for π
[tex]V = \frac{4}{3} * 3.14V = 4.1866[/tex]
V = 4.19 to the nearest hundredth
Answer:
4.19
Step-by-step explanation:
