D. Multiply the top equation by 2.
Answer:
D
Step-by-step explanation:
Given the 2 equations
8x + 3y = 2 → (1)
4x - 6y = - 7 → (2)
Multiplying the top equation (1) by 2 and adding to (2) will eliminate y
16x + 6y = 4 → (3)
Add (2) and (3) term by term to eliminate y
20x + 0 = - 3
20x = - 3 ( y has been eliminated )
Find the sum.
(12p+ 9) + (4p - 3)
A. 12p+ 6
B. 16p+6
C. 16p+ 12
D. 16p - 6
SUBMIT
Answer:
B. 16p+6
Step-by-step explanation:
Answer:
B . 16p + 6
Step-by-step explanation:
12p + 9 + 4p -3
collect like terms
(12p + 4p) + (9 - 3)
16p + 6
Select the quadratic expression that represents the product below.
(2x+5)(7-4x)
A. -8x2 - 6x + 35
B. -8x2 - 34x + 35
C. -8x2 + 34x - 35
D. -8x2 + 6x - 35
Analyze the student’s work. Is the answer correct? Explain.
Ik its not B
Answer:
im not 100 percent sure but i think he right
Step-by-step explanation:
Answer:
A: No, the student should have added 3 + 4 to get the total number of sections, and used the fraction 3/7
Step-by-step explanation:
Edge 2022
Find 9,528 ÷ 6. help pls dis due today and its ez D:
Answer:
1588
Step-by-step explanation:
ok I did this my self the answer is 1,588
Due in 11 minutes please help me ASAP
Answer: (d)
Step-by-step explanation:
Given
No of tickets sold can be given by the equation
[tex]35x-260>1000[/tex]
Solving inequality
adding 260 on both sides
[tex]35x-260+260>1000+260\\35x>1260[/tex]
Now, divide the inequality by 35
[tex]x>\frac{1260}{35}\\x>36[/tex]
Thus artist need to sell a minimum of 37 tickets to earn more than $1000
The table below shows the population of different duck species at a local pond. Which term best describes the total number of Mallards in the pond?
Duck Pond Samples
Sample 1
Sample 2
Mallard
13
Mallard
12
Wood Duck
4
Wood Duck
2
Green Wing Teal
6
Green Wing Teal
6
American Widgeon
2
American Widgeon
5
Mallard population
duck population
proportion of Mallards
sample of Mallards
Answer:
A
Step-by-step explanation:
Answer:
A) Mallard population
Step-by-step explanation:
7th grade math, please help. I’ve got an answer but I wanna make sure it’s right. Thanks.
Answer:
yes your right buddy
Step-by-step explanation:
Answer:
im in 9th and i still cant do this :(
1.
(2x3 - 5x2 + 3x + 7) = (x - 2)
a) 2x3 - x2 + x + 9
b) 2x2-x+1
C) 2x2 - x + 1 + 9/x-2
d) 2x2_9x - 15 - 23/x-2
The buildings of a university are mapped on a coordinate grid with the origin being at library.
The Math building is located at the point (1, 5) and the History building is located at (4, 9).
How far is it from the Math building to the History building?
Applying the distance formula, the distance between the the Math building to the History building is: 5 units.
What is the Distance Formula?To find the distance between two given points on a coordinate grid, the distance formula which is used is: [tex]d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}[/tex].
Given the following:
Math Building (1, 5) = (x1, y1)History building (4, 9) = (x2, y2).Plug in the values into the distance formula:
d = √[(4−1)² + (9 − 5)²]
d = √[(3)² + (4)²]
d = √(9 + 16)
d = √25
d = 5
Distance between the the Math building to the History building is: 5 units.
Learn more about the distance formula on:
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[tex]Write x^{2} -12x+19 in the form (x+a)^{2} +b[/tex]
Answer:
(x - 6)² - 17
Step-by-step explanation:
Given
x² - 12x + 19
Using the method of completing the square
add/ subtract ( half the coefficient of the x- term )² to x² - 12x
= x² + 2(- 6)x + 36 - 36 + 19
= (x - 6)² - 17
What is the slope of the line in the graph
Хеллльпппппп please ......
Answer:
B
Step-by-step explanation:
5.
The model represents the equation 3x - 2<4.
11:00 - 0000
What is the solution for this inequality?
Oxx-2
0x<-3
0x<6
0x<2
Copyright 2020
O
O
Answer:
Solving the inequality [tex]3x -2 < 4[/tex] we get [tex]\mathbf{x<2}[/tex]
Option D is correct option.
Step-by-step explanation:
We need to solve the inequality [tex]3x -2 < 4[/tex] and find value of x
Solving the inequality for finding value of x, we will keep x on left side of inequality and all other terms on the right side.
[tex]3x -2 < 4[/tex]
Adding 2 on both sides
[tex]3x -2+2 < 4+2\\3x < 6[/tex]
Now, we will divide 3 on both sides
[tex]\frac{3x}{3}<\frac{6}{3}\\x<2[/tex]
So, we get x < 2
Solving the inequality [tex]3x -2 < 4[/tex] we get [tex]\mathbf{x<2}[/tex]
Option D is correct option.
HELP ME PLS A Coast Guard boat is trying to reach a sailboat. Which are the coordinates of the location of the sailboat?
4a 3b - C
per a - 3;
b = -1;
1; C = -2
Answer:
4×(-3)=12,3×(-1)=-3;+3,c=-2
A roll of nickels is worth $2.00. Write and solve an equation to determine the number of nickels in a roll.
(NEED TO SHOW WORK)
Answer:
Being that every nickel is worth 5 cents you would set the equation up as 17 * $0.10 = $1.70
Step-by-step explanation:
Edward spends £610 on a plane ticket and $180 on airport tax. Using £1 = $1.34, what percentage of the total cost does Edward spend on airport tax? Give your answer rounded to 1 dp.
Answer: 18.0%
Step-by-step explanation:
Given: Cost of plane ticket = £610 = $ 610 x 1.34 [ £1 = $1.34 ]
= $ 817.4
Airport tax = $180
Total cost = $(817.4+180)= $997.4
The percentage of the total cost does Edward spend on airport tax = [tex]\dfrac{180}{997.4}\times100\approx18.0\%[/tex]
Hence, the required answer = 18.0%
[tex] - 2x - 4y = 10 \\ 2x + 4y = - 10[/tex]
please find the point of intersection
Answer:
They are the same slope
Step-by-step explanation:
When you convert both equations you get y=-[tex]\frac{1}{2\\}[/tex]x-[tex]\frac{5}{2}[/tex]
Which statements about circle O are true? Select three options. The radius of circle O is 13. The diameter of circle O is 34. LP is a diameter of circle O. ∠LMP intercepts a semicircle. The measure of arc LP is 90°.
Answer:
The radius of circle O is 13
LP is a diameter of circle O.
∠LMP intercepts a semicircle.
Step-by-step explanation:
The missing image is attached in the diagram below.
From the diagram;
we can determine the length LP by using the Pythagoras theorem.
i.e.
hypotenuse² = opposite² + adjacent²
LP² = ML² + MP²
LP² = 24² + 10²
LP² = 576 + 100
LP = [tex]\sqrt{676}[/tex]
LP = 26
Since line LP cuts the circle into two equal halves, we can say the line LP is the diameter of circle O.
if the diameter (LP) = 26
Then, the radius r = 26/2 = 13
The radius of circle O is 13.
Similarly, the arc LMP is 180° (∵ inscribed angle is 1/2 the measure of central angle), and LMP is 180°, then ∠LMP intercepts a semicircle.
Answer: A) The radius of circle O is 13.
C) LP is a diameter of circle O.
D) ∠LMP intercepts a semicircle.
Step-by-step explanation:
om edge
Which of the following statements is NOT a property of parallelograms?
1. Opposite angles are congruent.
2. Opposite sides are congruent
3. All angles are right angles.
4. Consecutive angles are supplementary.
Answer:
3
Step-by-step explanation:
took the test
also parallelograms are the slanted ones so they dont always have the 90 degree angles.
The non-necessary property of a parallelogram is All angles are right angles.
What is a parallelogram?A parallelogram is a special type of quadrilateral that has both pairs of opposite sides parallel and equal.
GIven that, what can not be a property of parallelograms
All the properties given in the option are correct for a parallelogram, but the option saying all angles should be a right angle, is not a correct one, because it is not necessary for a parallelogram to have all four angles 90°, it is only in two types of special parallelograms, that are rectangles and squares.
Hence, the non-necessary property of a parallelogram is All angles are right angles.
For more references on parallelogram, click;
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What is the y-intercept of a line that has a slope of –3 and passes through point (0, –7)?
A. -7
B. –3
C. 0
D. 4
Answer:
A) - 7
slope -intercept form y = - 3x - 7
slope m =-3 and y - intercept c = -7
Step-by-step explanation:
Explanation:-
Given that slope 'm' = -3 and point (0,-7)
The equation of the straight line passing through the point and having slope 'm'
y - y₁ = m ( x- x₁)
The equation of the straight line passing through the point ( 0,-7) and slope m = -3
y - (-7) = -3 ( x -0)
y +7 = -3x
3x +y + 7=0
The equation of the line 3x +y + 7=0
Final answer:-
slope -intercept form y = - 3x - 7
slope m =-3 and y - intercept c = -7
A) I sell one piece of wood for £1000, however the price has increased by 5000% how much do I make from selling 64 pieces of wood?
B) I sell one piece of wood for £2000, however the price has increased by 5000% how much do I make from selling 64 pieces of wood?
C) I sell one piece of wood for £1000, however the price has increased by 50% how much do I make from selling 64 pieces of wood?
A) £3264000.
. £1000 increased by 5000% =£51,000
. £51,000×64=£3264000
B) £6528000
. £2000 increased by 5000% =£102,000
. £102,000×64=£6528000
Step-by-step explanation
Solve 5/2 x > 5. Graph the solution.
Answer:
x > 2
see photo
Please help!!!
What is the solution to this equation?
x- 15 =8
OA. X = -7
OB. X = 23
OC. X = 7
OD. X = -23
Answer:
23
Step-by-step explanation:
X - 15 =8
+ 15 +15
15+8=23
23-15=8
X =23
Assume there is a 50% chance of having a boy. Find the probability of
exactly two boys in three births.
Answer:
0.375
Step-by-step explanation:
Given that there is 50% chance of having a boy in a single birth.
Let it be represented by p, so
p=50%=0.5
According to Bernoulli's theorem, the probability of exactly r success in n trials is
[tex]P(r)=\binom {n}{ r} p^r(1-p)^{n-r}[/tex]
where p is the probability of success.
So, the probability of exactly 2 boys (success) in a total of 3 birth (trials) is
[tex]P(r=2)=\binom {3}{ 2} p^2(1-p)^{3-2}[/tex]
As p=0.5, so
[tex]P(r=2)=\binom {3}{ 2} (0.5)^2(1-0.5)^{3-2} \\\\=\binom {3}{2} (0.5)^2(0.5)^{1} \\\\=3\times 0.5^3[/tex]
=0.375
Hence, the probability of exactly 2 boys in a total of 3 birth is 0.375.
Determine which quadrant each point will be located (-8,2)
Answer:
The point (-8, 2) is in Quadrant 2.
Step-by-step explanation:
Quadrant 1: (x, y)
Quadrant 2: (-x, y)
Quadrant 3: (-x, -y)
Quadrant 4: (x, -y)
Answer:
The point, -8,2, will be located in quadrant II.
Choose the correct zeros for the following quadratic function.
f(x) = x^2 + 5x - 14
A. {1,3}
B. {4, -3}
C. {2, -7}
D. {2, -1}
Answer:
I'm pretty sure its C
Hope that helps :)
Renan found the sum (4.2x + 3) + (5.7x – 2) + (5 – 2.6x), as shown. 4.2x + 3 + 5.7x – 2 + 5 – 2.6x 4.2x + 5.7x + 2.6x + 3 – 2 + 5 (4.2 + 5.7 + 2.6)x + 3 – 2 + 5 12.5x + 6 What was Renan's error in adding the expressions? He used the commutative property incorrectly. He used the distributive property incorrectly. He added incorrectly. He multiplied incorrectly.
Answer:
He used the commutative property incorrectly as he had no such addition of the property of any function to be done in sequence.
Answer:
He used the commutative property incorrectly. should be first answer good luck.
Step-by-step explanation:
The total cost of a pair of pants and a jacket was $59.01. If the price of the pair of pants was $1.49 less than the jacket, what was the price of the pair of pants? Express your answer as a simplified fraction or a decimal rounded to two places.
Answer:
The answer is 788
Answer:
28.52?
Step-by-step explanation:
Drag the numbers to order them from least to greatest.