Answer:
Step-by-step explanation:
-4x+7y=20
y=3x+15
sol
7y/7=20/7+4x7
y=2.857+4/7x
y=3x+15
Triangle ABC has three coordinates with a negative x value and a positive y value. Which of the following rotations would place it in quadrant 4?
A.
reflection across the y axis followed by a vertical translation 7 units up
B.
dilation by scale factor of 2/3 followed by vertical translation 3 units down and horizontal translation 7 units to the right
C.
180 degree counter clockwise rotation followed by reflection across y axis
D.
180 clockwise rotation followed by vertical translation 7 units to the right
Answer:
B
Step-by-step explanation:
The length of a rectangle is 16 inches. If the width is
50% of its length, what is the width of the rectangle?
Answer:
The width would be 8 inches
Step-by-step explanation:
50% of 16 is 8
You want to enlarge a picture by a factor of 5 from
its current size of 4 inches by 6 inches. What is the
size of the enlarged picture?
Answer:
20,30
Step-by-step explanation:
multiply by the factor for each one to get a bigger picture
Katie has a savings account that contains $230. She decides to deposit $5 each month from her monthly earnings for babysitting after school. Write an expression to find how much money Katie will have in her savings account after x months. Let x represent the number of months.
Given:
Initial savings in Katie's account = $230
Additional savings = $5 per month
To find:
The expression that represents the money Katie will have in her savings account after x months.
Solution:
Let x be the number of months.
Additional savings for 1 month = $5
Additional savings for x months = $5x
Now,
Total savings = Initial saving + additional savings for x months.
[tex]\text{Total savings}=230+5x[/tex]
Therefore, the required expression is [tex]230+5x[/tex].
Polina the Polar Bear sat on an ice floe in the Arctic Ocean, north of Alaska. Polina was waiting for her mother, Bearnice, to return hwith some tasty seal blubber for lunch. Bearnice was hunting, waiting for seals to come up for air through holes in the ice, the same way Polar Bears have hunted in the winter for centuries. Except this year there was one big difference.
A lot more of the ice had melted last summer, and this winter it hadn’t refrozen as usual. A combination of warmer weather and changes in water and air currents was making the ocean warmer than anyone could remember, and Bearnice had to swim farther every day to find a good hunting spot.
As Polina waited for her mother to bring food back to her floe, the ice shrank bit by bit until she was sitting on very thin ice. As Polina waited helplessly, the furry white cub heard a deep voice coming from the direction of the sea.
“Hellooo little bear,” it said. Polina had never heard such a deep voice. She lifted her tired head to look out over the water, and was surprised that the voice seemed to come from a dark ice floe just offshore.
"No, wait!" It had a huge eyeball that was looking directly at her. It wasn’t an ice floe — it was the largest whale Polina had ever seen. It was also the first whale that had ever spoken to her.
“They call me Farswimmer,”said the whale, “because I travel all over the world, having adventures and learning new things. What brings you here alone, Polar Bear?” Farswimmer was very old, and he had seen many changes in his years of exploring the oceans. He certainly knew more about the world than most polar bears.
Farswimmer seemed like a nice whale, but Polina remembered Bearnice, her mother, and how she hadn’t come back from hunting.
Farswimmer blew a tall spout to distract Polina and stop her from crying.
When Polina told the whale her own story, he said, “I’m headed north anyway. You could ride on my back, and we can look for your mother. Are you ready for an adventure?” The next morning, Farswimmer and Polina charted their course and took off. Polina rode Farswimmer’s back and sometimes floated behind him, holding his tail. She also stood on his back and pretended she was surfing. It was a blast.
They took a break on an ice floe. Soon, they saw something in the distance that looked like another ice floe, but just to be sure, Farswimmer left Polina on the ice and swam to the floating object.
It wasn’t an object. It was an animal. Farswimmer used his fat nose to push the animal to Polina’s icy raft. When they got closer, Polina saw a familiar face.
“Mommy,” she yelped. Bearnice was very tired, but the sound of her cub’s voice made her happy. She opened her arms and the two embraced each other in a big bear hug.
Read the passage on the left to answer the following questions:
1)
What is the main conflict in this story?
A) Farswimmer cannot find Polina's mother.
B) Polina's mother is unable to find any seals to feed Polina.
C) Bearnice decides that she wants to let her daughter live alone.
D) The ice is melting around Polina, and her mother hasn't returned.
2)
Which statement best describes the relationship Polina the Polar Bear and the whale Farswimmer?
A) Polina is angry at Farswimmer for being so large and scary.
B) Farswimmer has no interest in helping Polina find her mother.
C) The whale Farswimmer is kind and helpful to frightened Polina.
D) Polina is in love with Farswimmer the whale and wants to run away with her.
3)
How is Farswimmer characterized in this story?
A) as an unhappy and mean whale
B) as a kind and wise old whale
C) as an indifferent, cruel creature
D) as a simple-minded, innocent creature
4)
Which BEST describes the characters in this story?
A) Farswimmer is old and Polina is young. They can both talk.
B) Farswimmer and Beatrice are both old. They can both talk.
C) Farswimmer and Polina are both young and can both talk.
D) All three are young and can talk.
5)
What is the setting of this story?
A) a warm Mediterranean sea
B) the endless ice of Antarctica
C) an Eskimo village in the snow
the choice selections are 3.2m
5.0m
8.7m
and 11.2 m
Answer:
8.7m
Step-by-step explanation:
Use the Pythagorean theorem, a^2 + b^2 = c^2
a and b are the sides going either horizontally or vertically, it doesn't matter which is which as long as it's only between those 2.
c is the diagonal side, also called the hypotenuse.
so plug in:
a^2 + b^2 = c^2
5^2 + b^2 = 10^2
25 + b^2 = 100
subtract 25 from both sides
b^2 = 75
square root both sides
[tex]\sqrt{b^2} = \sqrt{75}[/tex]
b = 8.66, round it up and it's 8.7
The minute hand of a clock in a clock tower has a length of 36 inches.
If a butterfly landed on the extreme tip of the minute hand at exactly 12:00 noon and rode the minute hand until 12:45 p.m., how far did the butterfly ride along the arc traced by the minute hand? Round your answer to the nearest foot.
Answer:
45 degrees
Step-by-step explanation:
Butterfly will ride along the arc traced by the minute hand = 14 feet
Perimeter of a sector: Perimeter of a sector of a circle is given by the expression,
[tex]P=\frac{\theta}{360^\circ}(2\pi r)[/tex]
Here, θ = Angle formed at the center of the circle by the arc of
a sector
r = Radius of the circle
Since, minute hand of a clock forms an angle measuring 270° at the center to cover from 12:00 noon to 12:45 p.m.
Length of the minute hand = 36 inches
Perimeter of the arc = [tex]\frac{270}{360}(2\pi)(36)[/tex]
= 169.646 inches
Since, 1 inch = [tex]\frac{1}{12}[/tex] foot
169.646 inches = 14.137 ft.
≈ 14 ft.
Therefore, butterfly will ride 14 feet along the arc traced by minute hand.
Learn more about the perimeter of an arc here,
https://brainly.com/question/1582130?referrer=searchResults
What is the area of a rectangle with a length of 34 inches and a width of 11 inches?
The answer to this problem would be 374
Step-by-step explanation:
Im asian
Rewrite the equation 8x + 4y = 8 in slope-intercept form.
Answer:
y=2x-3
Step-by-step explanation:
Answer:
Y=-2x+2
OR
Y=2-2x
Both equations are the same
Step-by-step explanation:
Y intercept formula is
Y=Mx+b
Y is a random Y coordinate
M is slope
X is a random X coordinate
B is y intercept
Now we want to isolate the Y
So first we subtract the 8x on both sides which will give
4y=8-8x
Now we get ri of the 4 to isolate the Y completely
y=2-2x
there you go
Or you can write it in addition
y=-2x+2
Please help me thanks please
Hurry please
a rectangle is 6 times as long as it is wide. the perimeter is 140 cm. find the area of the rectangle. round to the nearest tenth if necessary.
Answer: [tex]w = 10[/tex]
Step-by-step explanation:
Our perimeter will be 140 cm and our width of the rectangle will be 6w. We will then divide 14w and 140 by 14 so we can get w by itself. Then, we will divide the perimeter by the width.
Step 1: Let 6w will be our length and let the perimeter be 140 cm.
[tex]6w, P = 140 cm[/tex]
Step 2: Perimeter means that you add up all the 4 sides of the rectangle.
[tex]P = 140 = w + w + 6w + 6w = 14w[/tex]
[tex]P = 140, 14w[/tex]
Step 3: Divide both sides 14 to get the single w variable.
[tex]\frac{140}{14} = \frac{14w}{14}[/tex]
Step 4: Simplify.
[tex]10 = w[/tex]
Step 5: Flip sides.
[tex]w = 10[/tex]
~I hope I helped you :)~
2. If m 26 = 128°, calculate m25, m_1, and m23.
+
5 6
113
42
7 8
Answer:
m∠5= 52°
m∠1= 128°
m∠3= 52°
Step-by-step explanation:
Please see the attached picture for the full solution.
Alternatively,
m∠3= m∠5 (vert. opp. ∠s)
m∠3= 52°
A recipe needs two and one sixth cups of walnuts and eight and one eighth cups of peanuts. How many cups of 14 or 48 as the domenater nuts are needed for the recipe in all? Please answer!!! It has to have 14 or 48 as the domentater
Answer:
[tex]10\frac{14}{48}[/tex]
Step-by-step explanation:
given data:
recipe = two and one sixth cups of walnuts [tex]2\frac{1}{6}[/tex]
and eight and one eighth cups of peanuts [tex]8\frac{1}{8}[/tex]
solution:
[tex]= 2\frac{1}{6} + 8\frac{1}{8}\\\\= 10 (\frac{1}{6} + \frac{1}{8} )\\[/tex]
[tex]= 10\frac{7}{24}\\or\\= 10\frac{14}{48}[/tex]
Please help I don’t understand
Answer:
[tex]y=-3\sqrt{x} +8[/tex]
Step-by-step explanation:
The question is asking you to write a function from the original function ([tex]\sqrt{x}[/tex]) w/ the given conditions.
It wants you to make a function that reflects over the x-axis; should be mirrored with the original function.
y=-[tex]\sqrt{x}[/tex] does just that.
Then it wants a horizontal stretch by 3.
[tex]y=-3\sqrt{x}[/tex]
Then move that graph up by 8 units.
[tex]y=-3\sqrt{x} +8[/tex]
Please know the transformation rules for functions to understand what you are doing better.
Jasmine took out a college loan of $55,000.00 for college for 10 years. The interest rate
is 4 7%. What will the total cost of the loan be for 10 years?
Answer:
57,585
Step-by-step explanation:
55,000.x4.7%=2585.
55000.+2585=57,585
Answer:
$57,337.50
Step-by-step explanation:
In order to get the answer we would have to add 55, 000 and 4 [tex]\frac{1}{4}[/tex]% of 55,000 (because of the interest rate). In order to find 4 [tex]\frac{1}{4}[/tex] % we would have to multiply 55, 000 by 0,0425. So now we get the following.
Total cost of the loan = 55,000 + 55,000 x 0.0425 = 55,000 + 2,337.5 =
57,337.5
In a basketball game, River scored 15% more points than Paul. If r is the number of points that River scored and p is the number of points that Paul scored, which equations are correct. Select all that apply.
Answer:
[tex]r = \dfrac{23}{20} p[/tex]
Step-by-step explanation:
Number of points scored by River = [tex]r[/tex]
Number of points scored by Paul = [tex]p[/tex]
River has scored 15% more points that Paul.
To find:
Equation to represent the given condition.
Solution:
As per the given question statement, Number of points scored by River is 15% more than that of Paul's.
15% of points scored by Paul = 15% of [tex]p[/tex] = [tex]\frac{15}{100}p[/tex]
15% more means total points scored by Paul plus 15% of points scored by Paul.
Therefore, we can write the following:
[tex]r = p + 15\%\ of\ p\\\Rightarrow r = p + \dfrac{15}{100} p\\\Rightarrow r = \dfrac{115}{100} p\\\Rightarrow r = \dfrac{23}{20} p[/tex]
Which statements describe the function relating time and the height of the rocket? Check all that apply.The function has constant second differences. The function is cubic. The function can be modeled with a quadratic equation. The domain of the function is {0 ≤ t ≤ 6}. The range of the function is {80 ≤ d(t) ≤ 144}.
Answer:
Step-by-step explanation:
The functions has constant second differences
The function can be modeled with a quadratic equation The domain of the function is (0 < t < 6)
PLEASE I NEED HELP ASAP, I WILL GIVE BRAINLIEST
Let q = ⟨15, –3⟩, r = ⟨–5, 8⟩, and s = ⟨10, –1⟩. What is r – q + 2s?
⟨0, 3⟩
⟨0, 9⟩
⟨40, 3⟩
⟨40, -13⟩
Answer:
⟨0, 9⟩
Step-by-step explanation:
Too long of an explanation...
Answer:
B. ⟨0, 9⟩
Step-by-step explanation:
WILL GIVE BRAINLIEST PLS HELP !!
Answer:
circle
Step-by-step explanation:
my mans on kahoot!!!!
Shaun is playing a game in which he receives 2 points for every correct answer and -5 points for every incorrect answer . After 4 questions shauns score is 1 if he answer the next question incorrectly what will shauns score be ? I need really bad help
Answer:
-4 :)
Step-by-step explanation:
QUESTION Lin’s father is paying for a $20 meal. He has a 15%-off coupon for the meal. After the discount, a 7% sales tax is applied.
how much does lin father pay for the meal
Answer:
18.19
Step-by-step explanation:
First we must determine how much 15% of 20 is (3). Now we must subtract that from 20 (20-3=17$) Once we have that we must figure out how much 7% of 17 is ($1.19) Lastly, we must add the tax to 17.00 (17+1.19) to get 18.19.
What is the maximum number of intersection points a parabola and an ellipse
could have?
The maximum number of intersection points of a parabola and ellipse is 4.
A parabola and an ellipse can have a maximum 4 number of intersections.
What is an ellipse?A regular oval form produced when a cone is cut by an oblique plane that does not intersect the base, or when a point moves in a plane so that the sum of its distances from two other points remains constant.
In another word, an ellipse is a curve that becomes by a point moving in such a way that the sum of its distances from two fixed points is a closed planar curve produced.
We can make an ellipse and a parabola such that there is a maximum of four points of intersection as shown in the image.
It can be possible if the major axis is very large as compared to the minor axis.
Hence "A parabola and an ellipse can have a maximum 4 number of intersections".
To learn more about ellipse here,
https://brainly.com/question/14281133
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solve 10x+7-8x=6
expressions and equations
Answer:
2+7
Step-by-step explanation:
Help and I’ll give brainliest
Answer:
They purchased 11 Packets
Step-by-step explanation:
C=11p + 30
I need help with number 11 just the answers no need to show work!
Mrs. Kelley asked her students to plot the number of books they read over the summer.
A dot blot titled Books Read Over the Summer goes from 0 to 7. 0 has 1 dot, 1 has 3 dots, 2 has 6 dots, 3 has 2 dots, 4 has 3 dots, 5 has 1 dot, 6 has 2 dots, and 7 has 0 dots.
Using the dot plot, how many students answered the question?
3
6
17
18
Answer: D.) 18
The dot add up to 18
Answer:
18
Step-by-step explanation:
also please explain
m=?
b=?
equation=?
Answer:
Decimal form: y = -3x + 1
Exact form: y = -3x + 1
m (slope)= -3
b= 1
in order for students to have a club at school they need a minimum of 22 students. If there are 17 students signed up for the club, how many more students does the club need
Answer: 5 more students need to sign up.
Tasha runs 5.8
miles over the
course of 2 days.
How many miles
does Tasha run
per day?
please answer
Answer:
2.9 miles.
Step-by-step explanation:
Just divide 5.8 and 2.
Answer:
2.9 miles
Step-by-step explanation: 5.8/2=2.9
what is the scale factor
Answer:
2/5
Step-by-step explanation:
Since it's from a big square to a smaller square, the smaller number will be at the top. Also, use the same side to find the scale factor, but since this is a square and all sides of a square are equal, it doesn't matter but in other shapes it does so practice i guess:
Left side of big square: 5
Left side of small square: 2
So scale is 2/5
To confirm:
5 · 2/5 = 10/5 = 2, we're right