Answer: B
Step-by-step explanation:
How many solutions does the system have
Answer:
There are infinate solutions.
Step-by-step explanation:
Plug (3x-8) in for y
5(3x-8)=15x-40
Simplify
15x-40=15x-40
Explanation:
If we multiply both sides of the second equation by 5, then we go from y = 3x-8 to 5y = 15x-40. This is exactly identical to the first equation of the system.
Therefore, the two equations are equivalent just in slightly different forms. The two equations graph the same line which leads to infinitely many solutions.
The solutions are of the form (x, 3x-8) where x is any real number.
Since there are infinitely many solutions, we consider this system to be dependent.
80 POINTS ANSWER QUICKLY (and correctly)
Consider the figure. A student correctly rotates rectangle PQRS 90° counterclockwise about the origin to obtain rectangle P′Q′R′S′. Which statement about rectangle
P′Q′R′S′ is true?
A. P′Q′¯ is parallel to R′S′¯.
B. P′Q′¯ is parallel to Q′R′¯.
C. Q′R′¯ is parallel to PS¯. ′
D. R′S′¯ is parallel to PQ¯.
Answer:
C
……………………………………………………………
The true statements about rectangle P′Q′R′S′ are,
A. P'Q' is parallel to R'S'.
C. Q′R′ is parallel to P'S'.
What are transformations?Two-dimensional figures can be transformed mathematically in order to travel about a plane or coordinate system.
Dilation: The preimage is scaled up or down to create the image.
Reflection: The picture is a preimage that has been reversed.
Rotation: Around a given point, the preimage is rotated to create the final image.
Translation: The image is translated and moved a fixed amount from the preimage.
We know rotating a planer figure counterclockwise transforms
(x, y) to (-y, x) and the image remains congruent to the preimage.
Given, A quadrilateral PQRS in which PQ is parallel to SR and PS is parallel to QR.
Rotating PQRS 90 degrees counterclockwise P'Q' is parallel to R'S' and
Q′R′ is parallel to P'S'.
learn more about the translation of figures here :
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Can someone help the picture below asap
In Mrs. Nathan's class, there are 8 boys and 10 girls. What is the ratio of girls to boys in Mrs. Nathan's class? A. 5:4 B. 1:8 C. 8:1
Answer:
A. 5:4
Step-by-step explanation:
There are 10 girls and 8 boys, so the ratio of girls to boys would be 10:8. BUT we are going to simplify it. 10 and 8 both can be divided by 2, so we get a ratio of 5:4.
Answer:
[A] 5:4
Step-by-step explanation:
There are 8 boys and 10 girls.
What is the ratio of girls to boys in Mrs. Nathan's class?
10:8 is the ratio
As you can see that not a answer choice.
That cause you have to simplify.
Find the GCF. [2]
Hence, 10:8 both divide by 2
= 5:4
Thus, Answer = [A] 5:4
[RevyBreeze]
3.6x+5.9−2.2−1.7x
Enter your answer as an expression
Answer:
1.9x+3.7
Step-by-step explanation:
Combine like terms
3.6x + (-1.7x)= 1.9x
5.9 - 2.2= 3.7
Hence, 1.9x + 3.7.
[RevyBreeze]
Answer:
1.9x+3.7
Step-by-step explanation:
start by combining like terms
(3.6x-1.7x)+(5.9-2.2)
1.9x+3.7
Match the side and angle measures of each triangle to its correct classification.
Step-by-step explanation:
the first one is acute equilateral
the second one is obtuse scalene
the third one is right scalene
the fourth one is obtuse isosceles
For each value of , determine whether it is a solution to 28=4w.
[tex][Hello,BrainlyUser][/tex]
Answer:
w = 7
Step-by-step explanation:
Divide both sides of the equation by the same term
[tex]\frac{28}{4}=\frac{4w}{4}[/tex]
Simplify
w = 7
[tex][CloudyBreeze][/tex]
Factorise : 81 − (a−2)^2
Answer:
(11 - a)(7 + a)
Step-by-step explanation:
81 - (a - 2)² ← is a difference of squares and factorises in general as
a² - b² = (a - b)(a + b) , then
81 - (a - 2)²
= 9² - (a - 2)²
= (9 - (a - 2) )(9 + (a - 2) )
= (9 - a + 2)(9 + a - 2)
= (11 - a)(7 + a)
What is the lowest denominator of 1/2, 1/3, and 1/5?
Answer:
6 or 1/6
Step-by-step explanation:
Only in this case, you leave out the 5 denominator as a multiple because it has nothing in common with 2 and 3.
2 x 3 = 6 lowest denominator
therefore,
6.
Why did the British sign the Treaty of Paris? What did Great Britain agree to do under the treaty?
Answer: They signed it to end the Revolutionary War. They promised to recognise American independence and ceded territory east of the Mississippi River to the U.S
Step-by-step explanation:
Marie was trying to show her friend why -3 × -8 equals a positive product. This is what she wrote:
-3 × 0 = 0
-3 × (?) = 0
-3(8) + -3(-8) = 0
-24 + 24 = 0
What should Marie write in place of the question mark?
8+8=16
-8 + (-8)= - 16
8+ (-8)=0
-8 + 0 = - 8
have a wonderful day
Hailey lee
Answer -8
Step-by-step explanation:
6 The bar chart shows the A-level mathematics grades achieved by some students one year. A-level grades 120 100- 80 Frequency 60 40 20 om 0 A* A B D E U С Grade a How many students achieved grade B or C? b How many students took A-level mathematics? c Estimate the probability that a student will achieve grade B or C next year.
Answer:
very hard very hard
Step-by-step explanation:
other will answer it
5.)Linear associations form a straight line on a graph. Nonlinear associations produce a curved line or other pattern that is not a straight line.
Other associations are positive, negative, and no association. Describe each of these three associations and provide a real world example of each type of association.
Answer:
See below.
Step-by-step explanation:
Positive association is when the line has a positive slope, and the line progresses upwards.
E.g. When a car is traveling, as time progresses, the distance traveled increases.
Negative association is when the line has a negative slope, and the line declines.
E.g. When a car is traveling, as time progresses, the amount of gasoline decreases.
No association is when there is no slope between points, nor is there a line.
-hope it helps
Hey, can someone help me with this. I am having trouble
the measure of an angle is 78 degrees. what is the measure of its supplementary angle?
I hope this helps :D
An angle of 78° is a supplement of another angle. We know that the sum of the supplementary angles is 180° and the sum of complementary angles is 90°. Let's take another angle to be x. Hence, the measure of another angle is 102°.
Answer:
18*
Step-by-step explanation:
When two angles add up to 90°, we say they "Complement" each other.
Complementary comes from Latin completum meaning "completed" ...
because the right angle is thought of as being a complete angle.
Spelling: be careful, it is not "Complimentary Angle" (with an "i") ...
that would be an angle you get for free!
A car travels 180km from Mool River along the N3 highway to the South Coast. It takes the driver 4 hours, Determine the average speed of the car in km per hour.
Answer:
45km/h
Step-by-step explanation:
The car took 4 hours to travel 180km -> In an hour, it travel 1/4 of the distance.
1/4 x 180 = 45
So, the average speed of the car is 45km/h.
What is the value of the expression 6to the power of 2 + 3to the power of 3 ?
Answer:
63
Step-by-step explanation:
6² + 3³
= 36 + 27
= 63
Answer:
63. Six times six is thirty six. Three times three times three is twenty seven. Thirty six plus twenty seven is equals to sixty-three
Step-by-step explanation:
=6²+3³
=36+27
=63
HELP HELP HELP HELP HELP HELP
Step-by-step explanation: i cant see it clearly
On a ship the ratio of crewmembers to passengers os 1:5 there are 540 passengers how many crewmembers are there
Answer: I believe that there are 108 crewmembers on the ship.
Step-by-step explanation: Since for every 5 passengers you have 1 crewmember i divided 540 by 5 landing me at the answer 108.
Which equations have the variable term in the equation -6 + 2x = 6x - 9 Isolated to one side of the =, and the constant isolated to the other side? Select all that apply.
Answer:
See explanation.
Step-by-step explanation:
Since no choices were given I'll do my best to provide equivalent options.
Let's say all the terms with x in them were moved to the left side of the equation, and the rest were moved to the right.
-6+2x = 6x-9
2x-6x = -9+6
Simplifying these gives:
-4x = -3
4x = 3
Based on your question you should look for functions arranged similarly to
-4x = -3
The options for this question might include:
-4x = -3
4x = 3
2x - 6x = -9 + 6
-6 + 9 = 6x - 2x
3 = 4x
How many tons are equal to 32,000 pounds?
16 tons
116 tons
160 tons
1,600 tons
Answer:
16 tons
Step-by-step explanation:
i hope this helps! have a wonderful rest of ur day :)
and if its not too much to ask will you mark me as brainliest pls, im trying to rank up this month and i only need 3 more, if not then its ok! ty and let me know if theres anything else you need!!
Answer:
16 tons
Step-by-step explanation:
I think it is 16 tons
sorry for answering so late lol i dont even remember how I got here
what is the prime factorization for 54???
[tex]2 * 3 * 3 * 3[/tex]
[tex]3 * 18[/tex]
How many 32-bit integers can be stored in a 16-byte cache line?.
Answer:
4
Step-by-step explanation:
1 byte = 8 bits
=> 16 byte = 16 x 8 = 128 bits
So it can hold 128 : 32 = 4 integers.
The number of 32-bit integers that can be stored in a 16-byte cache line is 4.
What is unit conversion?To convert any unit into another is called a unit conversion.
In order to convert units, we need to care about their dimensions their dimension should not be changed.
It is known that,
1 byte = 8 bits
Multiply both sides by 16
16 byte = 128 bits
32 bits will hold 128/32 = 4 integers.
Hence "A 16-byte cache line can hold a maximum of 4 32-bit integers".
To learn more about unit conversion,
brainly.com/question/11543684
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Help !! Write the following equation in standard form:
8/7x3+x4+6x+1
The temperature at sunrise is 35°F. Each hour, the temperature rises 7°F. Write an equation that models the temperature y, in degrees Fahrenheit, after x hours.
What is the graph of the equation?
Answer:
35 + 7x = y
Step-by-step explanation:
The temp starts at 35 and increases by 7 degrees every hour.
Have a great day!
Please rate and mark brainliest!
Solve the following
Step-by-step explanation:
derivative:zero becouse ever number has daritive is zero
6:
Use the rule x + 7 to find the missing number in the table.
X Y
1 8
6 13
8 15
10 17
12
The missing number is
Step-by-step explanation:
Given:
Rule, x + 7.Table values.The rule is telling us to add 7 to the given value of x.
Add 7 to 12.
[tex]7 + 12 = 19[/tex]
The missing number is 19.
The school has arranged to have the gym walls plastered. It takes 200 pounds of lime to make one batch of plaster. Each batch of plaster will cover 45 square yards of wall. How much lime will be needed to finish 855 square yards of wall? 21,375 pounds 3,762 pounds 38,475 pounds 3,800 pounds
Answer:
D or 3800
Step-by-step explanation:
Just divided 855 by 45 then multiplied 200 by 19
Please mark me brainlest
A taxi charges $4 plus $0. 20 per mile. You spend more than $30 for a taxi ride. What is the inequality?
Answer:
[tex]4+0.20m > 30[/tex]
Step-by-step explanation:
You add 4 to the 2 cents
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