How to solve (x+7)(x-9)>0
Answer:
x < -7, x > 9.
Step-by-step explanation:
Solve for x.
x = -7, 9
From the values of x above, we have these 3 intervals to test.
[tex]x < - 7[/tex]
[tex] - 7 <x < 9[/tex]
[tex]x > 9[/tex]
Pick a test point for each interval.
For the interval x < −7:
Let's pick x=−8. Then, (-8 + 7) (-8 - 9) > 0.
After simplifying, we get 17>0, which is true
Keep this interval.
Let's pick x=0. Then, (0+7)(0-9) > 0.
After simplifying, we get −63 > 0, which is false.
Drop this interval.
For the interval x > 9:
Let's pick x=10. Then, (10+7)(10-9)>0.
After simplifying, we get 17 > 0, which is true
Keep this interval.
Therefor, the answer is x < -7, x > 9.
necesito saber el valor que falta en esta fraccion 12/30 = ?/45
Answer:
28/45????????????????
Step-by-step explanation:
What is the median of the following set?
28, 45, 12, 34, 36, 45, 19, 20
28
34
31
35
Answer:
31 IS YOUR ANSWER!!
Step-by-step explanation:
I would not mind the brainliest please!!
What is the shape of the cross-section formed when a cone intersects a
plane as shown in the drawing?
A. square
B. oval
c. triangl
d.circle
A circle is formed when a cone intersects a plane as shown in the drawing.
What is a circle?A circle is a shape consisting of all points in a plane that are given the same distance from a given point called the center.
A cross section is defined as the process where a surface is shown when a straight cut is made by something. We are given when a cone is intersected by a plane horizontally the shape of the cross - section is a circle .
When the cone is intersected vertically by a plane the shape of the cross- section will be a triangle. Hence the shape of the cross section depends according to the cut.
Cross section is usually used to find what is there inside the object.
Learn more about circle;
https://brainly.com/question/15380197
#SPJ7
Factor out the greatest common factor
Answer:
7x
Step-by-step explanation:
7x(5x-7)
brainliest pls!
Answer:
7x
Step-by-step explanation:
How many miles are in 506,880 inches
Answer:
8 miles
Step-by-step explanation:
Answer:
8 miles
Step-by-step explanation:
1 mile:63360 inches
506880 divided by 63360 = 8
A printer Prints 4 pages vper minute. How long would it take to print 204 pages
Answer:
divide 4 by 204 and that's your answer
If the farmer has 276 feet of fencing, what are the dimensions of the region which enclose the maximal area?
Answer:
41 ft wide and 61.5 ft long
Step-by-step explanation:
whats the answer???? will mark brainlest
no files
Answer: 18 0/1
Step-by-step explanation:
Frank turns his steering wheel a full circle of 360°. Which statement best represents the
movement of the steering wheel?
A. The wheel makes 260 one-degree turns.
B. The wheel makes 360 ten-degree turns.
C. The wheel makes 360 one-degree turns.
D. The wheel makes 360 one hundred-degree turns. (I can NOT go in websites to get the answer and pls give a example on how you did the problem. Thank you)
Answer:
C. The wheel makes 360 one-degree turns.
Step-by-step explanation:
A full circle is 360°, that is, there are 360 degrees in a circle.
You can check how many total degrees the steering wheel is turned for each option by multiplying the number of turns by the number of degrees for each turn:
For A: 260 one-degree turns is (260 turns) × (1 degree per turn) = 260 degrees turned. This is not equal to the given fact that Frank turns a full circle of 360 degrees. So A is not correct.For B: 360 ten-degree turns means a total of (360 turns) × (10 degrees per turn) = 3600 degrees turned, which does not equal one turn of 360 degrees. So B is not correct.For C: 360 one-degree turns means a total of (360 turns) × (1 degree per turn) = 360 degrees turned, which is one full circle.For D: 360 one-hundred degree turns means a total of (360 turns) × (100 degrees per turn) = 36000 degrees turned, which is not 360 degrees. So D is not correct.Please help ! Please help!
Answer:
113 degrees
its really hard to explain it on this app
Taft Middle School is painting a circle on their playground with a radius of 9 feet. What will be the total
area of the circle, in square feet?
Use T = 3.14, and round your answer to the nearest hundredth.
Answer:
Area of a circle = PI * radius^2
Area = 3.14 * 9^2
Area = 3.14 * 81
Area = 254.34 square feet
Step-by-step explanation:
1/4 / (17 + 4)
What’s 1/4 divided by (17+4)
Answer:
0.0119047619
Step-by-step explanation:
Answer:
21/4
Step-by-step explanation:
1/4 ÷ (17 + 4)
1/4 ÷ (21)
21 × 1/4 = 21/4
-TheUnknownScientist
Please take your time.
Answer:
4
Step-by-step explanation:
12+8 = 20
20/5 = 4
Find the slope of a line that passes through the points (-7, 3) and (5, 6).
Answer:
the formula to find slope is m=∆y/∆y
this means m=y2-y1/x2-x1
using this formula
m=5-3/6-(-7)
m=2/13
Answer:
The slope is 0.25
Step-by-step explanation:
Can some one help me ASAP and thanks :)
Step-by-step explanation:
Hi,
For the first one...
Input: 0 Output: 1
Input: 2 Output: 2
Input: -8 Output: -3
Input: 100 Output: 51
And then for the creat your own...
Divide by 5 and add 3
Input: 50 Output: 13
Input: 25 Output: 8
Input: -75 Output: -12
Input: 150 Output: 33
I hope this helps :)
If the figure is reflected over the x-axis, what are the coordinates of point R?
Answer:
R' (3,-3)
Step-by-step explanation:
For each of the following forms determine whether the following limit type is indeterminate, always has a fixed finite value, or never has a fixed finite value.
In the first case answer IND, in the second case enter the numerical value, and in the third case answer DNE.
For example:
IND: 0/0
0: 0/1
DNE: 1/0
Note that Hospital's rule (in some form) may ONLY be applied to indeterminate forms.
1. 1/-[infinity]
2. 0 - [infinity]
3. 0[infinity]
4. [infinity][infinity]
5. 0−[infinity]
6. [infinity]−[infinity]
7. [infinity]−e
8. 1[infinity]
9. π−[infinity]
10. π[infinity]
11. 1 −[infinity]
12. [infinity]1
13. [infinity]−[infinity]
14. 0/[infinity]
15. [infinity]0
16. 00
17. 10
18. 1 - [infinity]
19. [infinity]/0
20. inf - inf
Step-by-step explanation:
1. 1/-[infinity] = 0
2. 0 - [infinity] = -∞
3. 0[infinity] = 0
4. [infinity][infinity] = IND
5. 0−[infinity] = -∞
6. [infinity]−[infinity] = ∞
7. [infinity]−e = ∞
8. 1[infinity] = ∞
9. π−[infinity] = -∞
10. π[infinity] = ∞
11. 1 −[infinity] = -∞
12. [infinity]1 = ∞
13. [infinity]−[infinity] = ∞
14. 0/[infinity] = IND
15. [infinity]0 = 0
16. 00 = 0
17. 10 = 10
18. 1 - [infinity] = -∞
19. [infinity]/0 = DNE
20. inf - inf = ∞
prove that: tanA/2=(sinA/2+sinA)/1+cosA/2+cosA
please help
please
no links please
Answer:
proved
Step-by-step explanation:
hope this helps!!
Find the length of the rectangle.
7 mi
Area = 56 sq mi
1
A. 21 mi
B. 8 mi
C. 30 mi
D. 4 mi
HElp And thaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaanks
Answer:
C or A
But I pick A
Step-by-step explanation:
Answer:
best option is A
Step-by-step explanation:
help please i have 3 more questions left !!
Answer:
[tex]24[/tex]°
Step-by-step explanation:
its a straight line so the total is 180, so we subtract from 180
180-156= 24
4. He drove at Puerto Princesa City to Taytay at an average speed of 40 kph
How far did he travel?
The journey lasted for 5 hours and 15 minutes.
Kart bought a new motorcycle.
Problem
Solution
Step-by-step explanation:
Distance = Speed x Time
Given Distance = 40km/h or kph
Time = 5 hours 15 minutes
=
[tex]5 \frac{15}{60} \\ = 5 \frac{1}{4} \\ = 5.25hours [/tex]
Distance Travelled = 40 kph x 5.25 hours
= 210km
Find the perimeter and area of this composite figure
Answer:
34
Step-by-step explanation:
Hope helps :)
Answer:
Hi! Your answer is 34! :D
Step-by-step explanation:
The lovely human who answered above me is indeed correct.
I hope you have an amazing day! Please give brainliest!
independent compound event definition
Answer:
Independent events occur when the outcome of one event does not affect the outcome of the second event. Rolling a four has no effect on tossing a head. To find the probability of two independent events, multiply the probability of the first event by the probability of the second event.
Other answer:
A compound event is the combination of two or more simple events (with two or more outcomes). Compound Probabilities (with more than one outcome (desired result) within a trial ): • The probability of rolling an even number less than 5 on a die. (
what is the equation of the line that passes through the point (3,4) and has a slope of -2/3
Аnswer is in а photo. I couldn't аttach it here, but I uploаded it to а file hosting. link below! Good Luck!
xlnk․cf/tcMG
Answer:
y= -2/3x+6
Step-by-step explanation:
PLEASE HELP NOW!!!
fill in "always", "sometimes", or "never" to make a correct statement.
if you add a multiple of 4 and a multiple of 7, the sum is ____ a multiple of 7
9514 1404 393
Answer:
sometimes
Step-by-step explanation:
4 + 7 = 11 . . . not a multiple of 7
28 + 7 = 35 . . . a multiple of 7
If you add a multiple of 4 and a multiple of 7, the sum is sometimes a multiple of 7.
__
It will be a multiple of 7 when the multiple of 4 used is a multiple of 7, such as 4×7 or 4×14 or 4×21, for example.
**Will give brainiest
Answer:
707
bc
tan(3)=a/4960
Answer:
[tex]\boxed {\boxed {\sf 260 \ feet}}[/tex]
Step-by-step explanation:
We are asked to find the driver's altitude increase. The increase in altitude is also the height of the triangle, which is labeled a.
Since this is a right triangle (signified by the small square representing a 90 degree angle), we can use trigonometry. The three trigonometric ratios are:
sinθ=opposite/hypotenuse cosθ= adjacent/hypotenuse tanθ=opposite/adjacentThe angle (θ) given is 3 degrees. Side a is opposite this angle and the side measuring 4,960 feet is the hypotenuse because it is opposite the right angle. Therefore, we use sine.
[tex]sin \theta= \frac {opposite}{hypotenuse}[/tex]
[tex]sin 3= \frac {a}{4960}[/tex]
We are solving for a, so we must isolate the variable. It is being divided by 4960 and the inverse of division is multiplication. Multiply both sides by 4960.
[tex]4960*sin 3= \frac {a}{4960}*4960[/tex]
[tex]4960*0.05233595624= a[/tex]
[tex]259.586343=a[/tex]
Round to the nearest whole number. The 5 in the tenth place tells us to round the 9 to a 0 in the ones place, then the 5 to a 6 in the tens place.
[tex]260 \approx a[/tex]
The driver's increase in altitude is approximately 260 feet.
Josh has solved for x in the inequality below
5-2x>3
-2x>-2
x>1
Choose the statement that is true regarding Josh's work shown above.
A- The solution is incorrect. Josh should have added 2x on both sides.
B- The solution is incorrect. Josh should have added 5 instead of subtracting 5.
C- The solution is incorrect. Josh should have flipped the inequality sign.
D- Josh's work and solution is correct.
Answer:
c
Step-by-step explanation:
cause he has to devide by a negative
write the absolute value inequality in the form lx-bl c that has the solution set x<-5 or x<7