Use the discriminant to determine the number of real solutions of the equation.
x^2 = -6x - 10
Answer:
No real solutions.
Step-by-step explanation:
x² + 6x + 10 = 0
a = 1
b = 6
c = 10
D = b² - 4ac = 6² - 4*1*10 = 36 - 40 = - 4
- 4 < 0,
so this equation has no real solutions.
How many degrees does a quadrilateral have?
Answer:
A quadrilateral has 360 degrees.
Step-by-step explanation:
Sidney is eating lunch at a salad bar where you
create your own salad. An 8-ounce salad costs
$2.49. Each additional ounce of salad costs
$0.25. How much does Sidney’s salad cost if it
weighs 1 pound, 8 ounces?
Answer:
$7.47
Step-by-step explanation:
Since a 8-ounce salad cost 2.49
You do 2.49+1 pound times 0.25
1 pound equals to 16 ounces
2.49 + 2.49 + 2.49
Correct. If I am wrong
Answer:
Step-by-step explanation:
the base is 2.49 for eight ozs so you already take off the ozs from 1 pound
since there are 16 ounces in one pound you multiply 16 by .25 and get 4 so you add 2.49 and 4 to get 6.49$ is the answer assuming there is no tax on the food
Gordon, Henry and Sarah share £48 in a ratio 2:3:1. How much money does each person get?
Answer:
Gordon: 16 pounds
Henry: 24 pounds
Sarah: 8 pounds
Step-by-step explanation:
Number of parts: 3+2+1 = 6
Amount per part: 48/6 = 8
Now Each person gets:
Gordon: 8 x 2 = 16 pounds
Henry: 8 x 3 = 24 pounds
Sarah:8 x 1= 8 pounds
Hope this helps.
Good Luck
Answer:
Gordon $16
Henry$24
Sarah$8
Step-by-step explanation:
You add the ratio 2+3+1= 6
Then you take everyone ratio according to how their names are arranged over 6 then you get the answer
Gordon2/6×48= 16
Henry3/6×48= 24
Sarah1/6×48= 8
If you want to buy an item in a store that costs $38 and is on sale for 10% off, then how much would the item actually cost you after the discount? Round to the nearest cent.
Anyone know this ? Please help :(
Answer:
D
Step-by-step explanation:
Just plug in and check. Plug in the first digit for x and the second digit for f(x)
First, try A. Does 5^0= 5? no so A is wrong
Now try B. Does 5^5=1? no so B is also wrong
Next try C. Does 5^0=0? no so C is wrong.
Finally, try D. Does 5^1=5? Yes so D is correct.
On a coordinate plane, 5 parallelograms are shown. Parallelogram L M N P has points (3, 1), (4, 1), (4, 3), and (5, 3). Figure D is reflected across the x-axis. Figure B is reflected across the y-axis. Figure C is rotated in the first quadrant. Figure A is rotated in the third quadrant. Which figure represents the image of parallelogram LMNP after a reflection across the line y = x? figure A figure B figure C figure D
Answer:
Figure C
Step-by-step explanation:
Reflection across the line y = x transforms point (x, y) into (y, x)
(3, 1) -> (1, 3)
(4, 1) -> (1, 4)
(4, 3) -> (3, 4)
(5, 3) -> (3, 5)
After rotation, all points remain in the first quadrant. Figure C is rotated in the first quadrant, then it is the correct option.
Because Figure C is rotated in the first quadrant,its represents the image of parallelogram LMNP after a reflection across the line y = x
What is a Parallelogram?A Parallelogram is simply a four-sided quadrilateral with opposite sides parallel to each other.
What figure identifies the image of parallelogram LMNP?Question Parameter(s):
5 parallelograms are shown
LM N P has points (3, 1), (4, 1), (4, 3), and (5, 3).
Generally, the indivudual tranformation is is mathematically given as
Reflection gives (x, y) into (y, x)
(3, 1) -> (1, 3)
(4, 1) -> (1, 4)
(4, 3) -> (3, 4)
(5, 3) -> (3, 5)
In conclusion, Figure C represents the image
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Need help! What’s the answer to number two??
Answer:
V = 5(12)(7) which is F.
Step-by-step explanation:
V = LWH
L = 12
W = 5
H = 7
12 * 5 * 7
Answer:
if you need to find the area, the answer is 420, I think All in all the answer is F <last one>
Step-by-step explanation:
I think the first thing you do is L x W (12 x 5), which is 60. Then you do 60 x H (60 x 7), and you will get 420.
I am not entirely sure if I got it right.
1. The length of a rectangle is 10. The perimeter is 28. Find the area of the rectangle.
PLZZ ANSWER!
The right answer is 40
please see the attached picture for full solution
Hope it helps
Good luck on your assignment......
You roll a fair 6-sided die what is the probability of rolling a number grader than 4?
Answer:
2/6 or 1/3
Step-by-step explanation:
5, and 6 is greater than 4 if the total is 6 then its 2/6 since there are only two numbers that are greater than 4
Answer:
[tex]\frac{1}{3}[/tex]
Step-by-step explanation:
There are 2 numbers on the dice greater than 4. 5 and 6.
[tex]\frac{6-4}{6}[/tex]
[tex]\frac{2}{6}[/tex] [tex]= 1/3[/tex]
Who can help me with this multiple choice problem
Answer:
the answers are E and C
Find the mode of the data.
10, 15, 7, 15, 15, 9, 11, 7, 9, 10
Answer:
15
Step-by-step explanation:
mode is the most common number in a set. and in the question most common is 15
A rectangular prism has a length of 2 y, a width of 3 y, and a height of 5 y. If the volume of the prism is 10,290 units, what is the value of y?
Answer:
y=7
Step-by-step explanation:
2x7=14
3x7=21
5x7=35
14x21x35=10,290
find six rational numbers between 9 and 10
Answer:
To find 6 rational numbers between 9 and 10 are
9x7\1x7 10x7\1x7
63\7 70\7
so, 6 rational numbers are:
64\7,65\7,66\7,67\7,68\7and 69\7
The rational numbers that are between 9 and 10 are:
9.1, 9.2, 9.3, 9.5, 9.7, and 9.9.
What is a rational number?A rational number is a number that can be written in the form of p/q where q is not equal to zero.
We have,
There are infinite numbers between 9 and 10.
Rational numbers are recurring and terminating numbers.
Numbers that are rational between 9 and 10 are:
9.1, 9.2, 9.3, 9.5, 9.7, and 9.9
Thus,
The rational numbers between 9 and 10 are
9.1, 9.2, 9.3, 9.5, 9.7, and 9.9
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Solve using distributive property. (3x2-2x+7)(x2+2x) Thank you!
Answer:
[tex]3x^4+4x^3+3x^2+14x[/tex]
Step-by-step explanation:
[tex](3x^2-2x+7)(x^2+2x)[/tex]
[tex]3x^4+6x^3-2x^3-4x^2+7x^2+14x[/tex]
[tex]=3x^4+4x^3+3x^2+14x[/tex]
Answer:
3x^4+4x^3-3x^2+14x
Step-by-step explanation:
(3x^2-2x+7)(x^2+2x)
= 3x^2(x^2+2x)-2x(x^2+2x)+7(x^2+2x)
= 3x^4+4x^3-3x^2+14x
What is the range of the given function?
A 2-column table with 4 rows. The first column is labeled x with entries negative 5, 1, 4, 6. The second column is labeled y with entries 9, 0, negative 7, negative 1.
Answer:
Step-by-step explanation:
x= -5,1,4,6 y=9,0,-7,-1
the range of a given function equals to the value of y in order
range = -7,-1,0,9
Which of the following is not a true statement?
a) 4 * -3 = -8 - 4
b) 1/4 * -8 = 7 + -9
c) 3 + -7 =2 * -4
d) 8 / -2 = -10 + 6
Solve each equation to see if the left side equals the right side.
The answer would be C because when solved it becomes -4 = -8 which is false.
The accepted density of copper is 8.96 g/cm3. A lab team measured the density of a copper sample in a lab and calculated a density of 8.40 g/cm3. Part A: Which expression calculates the percent error for the calculated density of copper? Part B: What is the percent error? Select two answers: one for Part A and one for Part B. Answer Choices: B: 4.84% B: 6.51% A: 8.40|8.4+8.96|⋅100 B: 6.67% A: |8.40|8.96⋅100 A: |8.40−8.96|8.96⋅100 B: 2.33% A: |8.40−8.96|8.40⋅100
Answer:
A: [|8.40−8.96|/8.96]⋅100,
B. 6.25%
Step-by-step explanation:
A.
% error =[ | calculate density - accepted density|/ accepted density]*100%
A: [|8.40−8.96|/8.96]⋅100
B. |8.40−8.96|/8.96⋅100 = 6.25%
Solve for t.
–17t = –9(3t + 17) − 7
t =
Answer:
t = -16
Step-by-step explanation:
→Distribute the -9 to (3t + 17):
-17t = -9(3t + 17) - 7
-17t = -27t - 153 - 7
→Add like terms:
-17t = -27t - 160
→Add 27t to both sides:
10t = -160
→Divide both sides by 10:
t = -16
Answer:
[tex] \boxed{t = - 16} [/tex]
Step-by-step explanation:
[tex] = > - 17t = - 9(3t + 17) - 7 \\ \\ = > - 17t = - (9 \times 3t) - (9 \times 17) - 7 \\ \\ = > - 17t = - 27t - 153 - 7 \\ \\ = > - 17t = - 27t - 160 \\ \\ = > - 17t + 27t = - 160 \\ \\ = > 10t = - 160 \\ \\ = > t = - \frac{160}{10} \\ \\ = > t = - 16[/tex]
Mia jogs 3 kilometers in 20 minutes. There are about 0.6 miles in a kilometer. What is Mia’s approximate speed in miles per minute?
Step-by-step explanation:
Mia runs about 1.8 miles in 20 minutes. Divide by 20 to see how much she runs in a minute. You would her 0.09 which means she runs 0.09 miles a minute.
Answer:
0.09 miles per min
Step-by-step explanation:
A 45-foot ladder makes an angle of measure 55 degrees with the ground. How high up the wall does the
ladder reach?
Answer: is it degrees or something else? cause i dont think "degrees" is the word for that. Just asking if you made sure your sentence is correct
Step-by-step explanation:
Math question please help me this is hard
Answer:
i think its 4
Step-by-step explanation:
if u have two fingers and add two more u get 4
An angle is bisected by a segment forming two new angles. ∠ 1 and ∠ 2. Find m ∠DBC if m ∠2 = 27.
Wouldn’t it be still 27? So, like 27 + 27 = DBC?
Answer:
Yes, it will still be 27? So, like 27 + 27 = DBC.
Answer:
54
Step-by-step explanation:
Bisecting means to divide in half
<1 = <2
If <2 = 27 , then <1 = 27
The sum of the angle = 27+27 = 54
If DBC is the original angle, then DBC = 54
usain bolt ran the 2012 olympic 100-meter race in 9.63 seconds. if he runs at this rate on a road wait a speed limit of 25 miles per hour, how will his speed compare to the speed limit? justify your answer.(25 mi/hr=40,234 meter/hr)
Answer:
Usain Bolt runs about 37,383 meters an hour so he will not exceed the speed limit but will run at about 23 miles per hour.
Step-by-step explanation:
Usain Bolt runs about 37,383 meters an hour so he will not exceed the speed limit but will run at about 23 miles per hour. We get this from 3600 seconds in an hour, 3600÷9.63×100≈37383 meters an hour. 1609.344 meters in a mile. 37383÷1609.344≈23 mph
Answer:Sample Response: The speed limit is about 11.2 meters per second. Usain is running 10.38 meters per second. So he is running slower than the speed limit.
Step-by-step explanation:Need brainliest award
A baker is decorating the top of a round cake with cherries. The diameter of the cake is 9.5 inches. Each cherry is 0.75 inches in diameter. About how many cherries will the baker need to decorate the circumference of the top of the cake? *
Answer:
A= 78.5 sq. in
Step-by-step explanation:
Step by step
1: A = pi * r^2
2: A = 3.14 * 25
In words.
1: Times the pi by r^2
2: The answer will come out as 3.14
3: Times the Answer that is 3.14 by 25
Answer: A= 78.5 sq. in
Hope this helps.
Help to answer 2 & 3 Pablo and Jasmine had just started studying systems of linear equations in algebra. They looked at Pedro's drawing and said, "We could write that as a system of equations." Let t be the price of each taco and d be the price of each drink. - Write an equation that represents the cost of Pablo's order. (6T + 2D = 9) - Write an equation that represents the cost of Jasmine's order. (4T + 2D = 7) 2. What operations with the equations from part (1) match your way of using Pedro's sketch to find the prices t and d? 3. Why do the operations make sense?
Answer:
Step-by-step explanation:
The equation for Pablo's order is given as 6T+2D=9 or 6T+2D-9=0
While the equation for Jasmine's order is given as 4T+2D=7 or 4T+2D-7=0
Subtracting Jasmine's equation from Pablo's
6T+2D-9-(4T+2D-7)=0
This gives us
6T+2D-9-4T-2D+7=0
The reduces to
2T-2=0
Dividing all through by 2 gives
T-1=0
Therefore
T=1
Substituting the value for T into any of the equations of either Pablo and Jasmine
Using Pablo's
6T+2D=9
6(1)+2D=9
2D=9-6
2D=3
There D= 3/2
You want the volume of the box to be 9 cubic inches.
Find the rational solution(s) of the equation. Then use polynomial long division to find the other solution(s).
What are the possible side lengths of the box?
Odyssey ware Answer: 9 = 3 x 3 x 3
Step-by-step explanation:
If the volume of the box is 9. The possible side lenths are:
V = L x W x H
9 = 3 x 3 x 3.
What I did was estimated how 9 could be split up into 3 so that it’ll make sense for L x W x H.
Rewrite the expression in the form k x z^n.
[tex]10 \sqrt[3]{z} \div {2z}^{2} [/tex]
Answer: 5z^(-5/3)
Step-by-step explanation:
Given the expression above, rewrite in the form k × z^n
(10 × (z)^1/3) ÷ 2z^2
(10z^1/3) ÷ (2z^2)
10/2(z^(1/3 - 2))
5z^(-5/3)
Which best describes the solution to 4 minus 7?
Answer:
I think the solution to 4-7 is 3
Answer: D
Step-by-step explanation:
Circle O is shown. Line segments C O And A O are radii. Lines are drawn from points C and A to point B to form chords B C and B A. Angle C B A is 80 degrees. What is the measure of angle COA? 140° 150° 160° 170°
Answer:
Its 160 on ED
Step-by-step explanation:
Based on the angle-arc relationship, the measure of angle COA is: C. 160°.
What is the Angle-Arc Relationship?The angle-arc relationship relates the measure of an inscribed angle to its central angle, such that the central angle is twice the measure of the intercepted arc.
Given:
m∠CBA = 80° (intercepted arc)m∠COA = ?° (central angle)Therefore:
m∠COA = 2(m∠CBA)
Substitute
m∠COA = 2(80°)
m∠COA = 160°
Therefore, based on the angle-arc relationship, the measure of angle COA is: C. 160°.
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