Find the solution to the system of equations y=2x+1 y=x^2+2x-15
Answers
Answer:
x = 4 OR x = -4
Step-by-step explanation:
To find the solution, you can set both equations equal to one another:
(1) y=2x+1; (2) y=x^2+2x-15
2x+1 = x^2+2x-15
Then solve for the x-values that make this true.
2x+1 = x^2+2x-15
1 = x^2 - 15
16 = x^2
x = 4 OR x = -4
Related Questions
100 points to factor this expression as far as possible: -48x
I'm stuck and I don't know how to do it, please help, I need it today.
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Answer:
78
Step-by-step explanation:
Answer:
12x(-4)
Step-by-step explanation:
Help me please il give 20 points!
Answers
Answer: 1. a. 15 b. 11 c. 2 d. 7 e. 5.5
2. Stem: Leaf:
1 9
2 5, 9
3 3, 3, 8
4 0, 7, 9
5 4, 5
6 1, 5
7 2, 7
8 1
3. a. 13 inches b. I'm pretty sure that it is the second quarter because there is more snow. c. The first quarter because it's section is more spread out among the numbers.
Step-by-step explanation:
2. Stem:
Leaf:
9
2
5, 9
3
3, 3, 8
4
0, 7, 9
5
4, 5
6
1,5
7
2, 7
8
1
3. a. 13 inches
b. I'm pretty sure that it is
the second quarter because there is more show.
c. The first quarter because it's
section is more spread out among the numbers.
Step-by-step explanation:
g(t) = 3t+ 4; Find g(−3)
Answers
Answer:
t=-5
Step-by-step explanation:
-3=3t+4
-1=t+4
-5=t
I need some help, how would you find the volume of a cylinder if one part of the cylinder has a full line, not half of it? (for both the questions) I WILL GIVE BRAINLIEST!!!
Answers
Answer:
divide the full line (diameter) by 2 to get the half-line (radius)
Step-by-step explanation:
What is the verbal phrase of -2x + 3 = 7 please help
Answers
The mean of three numbers is 4. Two of the numbers are shown below. What is the missing number? 1, 9, ?
Answers
1+9=10
(10+2)/3=4
You need to find a number that is able to divide by 3 when you add it to 10 and will equal 4
If the mean is 4 then the missing number will be 2.
What is mean?The mean is the average of all the data values present in the data set.
Mean=sum/number
How to calculate mean?Let the missing number be x in this way mean will be
(1+9+x)/3=4
10+x=12
x=2
Hence if mean is 4 then the missing number will be 2.
Learn more about mean at https://brainly.com/question/1136789
#SPJ2
Please explain in an easy way how to evaluate the following.
Answers
Hi there!
The | | signs mean that we must make the value positive, so:
(a) | -5 + 9 | =
Solve for the inside:
| 4 | = 4
(b)
| -5 | + 9 =
Make the value positive:
5 + 9 = 14
The system of equations represented by lines p and q is shown on the graph below. Based on the graph, what is the solution of the system of equations.
Answers
Answer:
C(2,1)
Step-by-step explanation:
can someone please help me i dont understand
Answers
Which equation is correct?
792 × 5 = 700 × 5 + 90 × 5 + 2
792 × 5 = 700 × 5 + 90 × 5 + 2 × 5
792 × 5 = 700 + 90 × 5 + 2 × 5
792 × 5 = 7,000 × 5 + 900 × 5 + 20 × 5
Answers
Equation which is correct
792 × 5 = 700 × 5 + 90 × 5 + 2 × 5
Pablo has 20 balloons for his party. He will either take 2 for a stack or 3 for a stack. How many more stacks will Pablo need if he takes 3 on each stack?
Answers
Referring to the Fig. in Question #26, find the product represented by the
shaded region.
Answers
Answer: 0.375
Step-by-step explanation:
Width= 1÷4= 0.25
Length= 1÷2=0.5
=(0.25x0.5)x3
=0.125x3
=0.375
helppp plsss!! if u can’t see the pic don’t bother answering !!
Answers
Area = pi*radius^2
Earn points, answer both questions!
Answers
Answer:
Area of five squares = 1289.09 square units
Perimeter = 194.6 units
Step-by-step explanation:
Area of square and perimeter:
First find the length of each square, then find the area of each square.
To find the area of five squares, add all the area of each square.
Side of square1 = 27 units
\(\sf Side \ of \ square2 = \dfrac{2}{3}*27=2*9 = 18 \ units\\\\Side \ of\ square3= \dfrac{2}{3}*18=2*6=12 \ units\\\\Side \ of \ square4=\dfrac{2}{3}*12=2*4=8 \ units\\\\Side \ of \ square5=\dfrac{2}{3}*8=\dfrac{16}{3}=5.3 \ units\)
Area of square1 = 27*27 = 729 square units
Area of square2 = 18*18 = 324 square units
Area of square3 = 12*12 = 144 square units
Area of square4 = 8*8 = 64 square units
Area of square5 = 5.3*5.3 = 28.09 square units
Area of five squares = 729 + 324 + 144 + 64 +28.09
= 1289.09 square units
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Perimeter of the composite figure = (27 + 27+27+9) + (18+18+6) +(12+12+4) + (8+8+2.7)+ (5.3+5.3+5.3)
= 90 + 42 + 28 + 18.7 + 15.9
= 194.6 units
the perimeter is 194.6 units
Put the numbers in ascending
Answers
Answer:
? what numbers
Step-by-step explanation:
Answer:
Where are the numbers?
Step-by-step explanation:
Put it in the comments and i'll answer it there...
Brainliest Plsss!!!
Can anyone help with me with this please
Answers
Answer:
x=6
Step-by-step explanation:
Remember, a triangle adds to 180 degrees. So add all the sides to 180 and solve.
A car traveling at 25 mi/h accelerates to 48 mi/h over the first 5 seconds. It maintains that speed for the next 5 seconds, and then slows to a stop during the next 5 seconds.
Which graph below could match the situation described?
Answers
The car accelerates then stays that way then it stops
Pls Help me out here
i will mark brainliest and you'll get 50 points
and any ridiculous or 'nvjnfsjn' answers will be reported so keep that in mind before you answer. Thank you :)
Answers
slope 2
.........................................................
screenshot 1: question
screenshot 2: answer options
thx
Answers
Answer:
A/m=-2. since x goes up by 2 on the table, y decreases by 4 on the table, but if the next part of x on the table was 6, then y would be -2.
Which statements are true? All parallelograms are rhombuses. All rectangles are squares. All rectangles are parallelograms. All squares are rectangles.
Answers
Answer:
A.
Step-by-step explanation:
Hope this helps! :)
Which set of values make the inequality n > -5 true?
A: {-5, -5.5, -6}
B: {-5, -4.5, -3}
C: {-6, 0, 5}
D: {-6, -7, -8}
Answers
I think
Which table shows a function that is decreasing only over the interval (–1, ∞)?
What answer is it and why? To me it seems it can either be C or D (One all the way to the right on the top row and one all the way to the bottom right), but I'm not sure why it would be either one over the other and would need an explanation. If it is neither C nor D I need an explanation on how to solve this question correctly.
Answers
Answer: The table to the farthest right the last one.
Explanation:
The interval (-1, ∞) represents x-values anywhere from -1 and higher.
As such, you are looking for a table with y-values that decrease as the x-values increase.
Starting from -1 -
The first option: -5, -2, -1, 2. This is increasing.
The second option: -7, -6, 1, -1. This increases from -7 to -6 to 1.
The third option: -1, 2, 1, -6. This increases from -1 to 2.
The fourth option: 1, 0, -4, -8. This decreases across all coordinates in the range specified.
Answer:
The last graph (d) represents it
What is the measurement of the longest line segment in a right rectangular prism that is 11.2 centimeters long, 6.6 centimeters wide, and 6 centimeters tall?
Answers
Answer:
Step-by-step explanation:
3.1313109
Answer: the answer should equal 3.131
Step-by-step explanation: as this is the measurement of the longest line in right rectangular prism.
Please got brainliest
For each inequality write all the one digit integers that satisfy it. a≥2
Answers
The one-digit integers that satisfy the inequality k>0 are 1, 2, 3, 4, 5, 6, 7, 8, and 9.
Step-by-step explanation:
What is a number line?
A number line in elementary mathematics is a representation of a graduated straight line that serves as an abstraction for real numbers, represented by the symbol R."
It is assumed that every point on a number line corresponds to a real number and that every real number corresponds to a point.
A number is a line that is made up of positive and negative numbers with the distance between the preceding and succeeding unit to be 1.
The negative values on the number line are -1, -2, -3...-9 while the value greater than zero are 1, 2, 3, 4,...9
Hence the one-digit integers that satisfy the inequality k>0 are 1, 2, 3, 4, 5, 6, 7, 8, and 9.
Answer:
Step-by-step explanation:
reaD the upper case letters Igloo Kangroo
Which expression is equivalent to -1/3 ( 6x + 15 ) - 3?
a) -2x + 12
b) -2x + 2
c) -2x - 2
d) -2x - 8
Answers
The correct answer is (D) -2x - 8.
To simplify the expression -1/3 ( 6x + 15 ) - 3, we can first apply the distributive property to the term in parentheses:
-1/3 ( 6x + 15 ) - 3 = -1/3 * 6x - 1/3 * 15 - 3
Then we can simplify using the properties of multiplication and division:
-1/3 * 6x - 1/3 * 15 - 3 = -2x - 5 - 3
Finally, we can combine like terms:
-2x - 5 - 3 = -2x - 8
The correct answer is therefore (D) -2x - 8.✅
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Answers
Answer:
The second question is
Slope = 4x=y
The first one is
The slope of the graph given below is -3/2x=y
Step-by-step explanation:
The second one is 4x=y because in the table x=1 and y=4 so if you apply the slope rule, 4(1)= 4 and that is right.
Another example is x=2 and y=8 4x=y 4(2)=8 and that again is proven right
plz mark me brainliest!
Answer:
-3/2
4
Step-by-step explanation:
Take the points on the graph
(30,60) and (50,30)
and use the slope formula
m =(y2-y1)/(x2-x1)
= (30 - 60)/(50 - 30)
= -30/20
= -3/2
The same technique is used for the data points
m =(y2-y1)/(x2-x1)
= (16-12)/(4-3)
= 4/1
= 4
help me out please , thank you and Ill make your brainlist.
Answers
Answer:
Try desmos
Step-by-step explanation:
Joanna draws a scale model of a rectangular table for a carpenter to build.
On her drawing, 3/4 of an inch represents 1 foot. In the drawing, the table is 7 1/2 inches long. How long, in feet, will the table be when the carpenter builds it?
A. 4 2/3 ft
B. 2 5/8 ft
C. 5 5/8 ft
D. 10 ft
Answers
Answer:
D
Step-by-step explanation:
just multiply the three over four inches with seven and a half to get the accurate measurements
A racecar driver is trying to decrease her lap times by at least 8%. Select whether the description stated shows that the driver reached her goal.
A.The original time was 2.5 minutes, and the new time is 2 minutes.
B.The original time was 4 minutes, and the new time is 3 minutes.
C. The original time was 5.25 minutes, and the new time is 5 minutes
D. The original time was 3 minutes, and the new time is 3.15 minutes.
Answers
Answer:
A. The original time was 2.5 minutes, and the new time is 2 minutes.
B. The original time was 4 minutes, and the new time is 3 minutes.
Step-by-step explanation:
A. 8% of 2.5 is 0.2, but 2 minutes is faster than 2.2 minutes
B. 8% of 4 is 0.32, but 3 minutes is faster than 3.68 minutes
C. 8% of 5.25 is 0.42, 5 minutes is slower than 4.83 minutes
D. she is slower so her lap time is increasing
For A, 8% of 2.5 is 0.2 and 2.5 - 0.2 =2.3
2 minutes is less than 2.3 so thats correct.
For B, 8% of 4 is 0.32 and 4 - 0.32 = 3.68
3 minutes is less than 3.68 so thats correct.
Hurry I'm almost out of time !!!!
Answers
Answer:
v= 7*6/2 *8 (The last one)
Step-by-step explanation:
To find the volume you have to multiply the base and the height which is 7 and 6 and divide it by 2. Then you multiply the 8.