Answer:
2(5-7)
Step-by-step explanation:
Answer:
5 – 7)2*
I took the test
Step-by-step explanation:
If –1 is a root of f(x), which of the following must be true?
A factor of f(x) is (x – 1).
A factor of f(x) is (x + 1).
Both (x – 1) and (x + 1) are factors of f(x).
Neither (x – 1) nor (x + 1) is a factor of f(x).
Answer:
B
Step-by-step explanation:
if x=-1
then x+1 is a factor of f(x)
Answer:
B
Step-by-step explanation
A wise man once told me that this do be correct.
Someone help me solve this please, I'd appreciate it if you can walk me through the steps. If not, just answering it is okay :)
Answer:
6x
Step-by-step explanation:
I'm pretty sure
2×2×3×5 and 2×2×5×5 LCM=_____________=_____
60, 100 = 300
hope this helps
Answer:
Step-by-step explanation:
LCM - Least common multiple
2 * 2 * 3 * 5 = 2² * 3 * 5
2 * 2 * 5 * 5 = 2² * 5 * 3
LCM = 2² * 3 * 5
= 4 * 3 * 5
= 60
So you have 21 people that you want to have meet in groups of 3. How many rounds of meeting would it take to have them all meet?
Answer:
1330 rounds of meetings
Step-by-step explanation:
You have a total of 21 people, and they all want to meet with each other in groups of 3. This means we are dealing with a combination problem, where combination is the selection of items in which order does not matter.
Formula for combination:
ₙCᵣ = [tex]\frac{n!}{r!(n-r)!}[/tex]
where n is the total number of objects (in this case, total number of people: 21), and r is the sample set (in this case, groups: 3).
We plug in and get:
-> [tex]\frac{21!}{3!(21-3)!}[/tex]
-> 1330 different meetings for everyone to meet with each other in groups of 3.
A square has a side length equal to 6a-2b inches. What is the area of this square
The answer is 36a²+4b²
Evaluate -(7^-3)(7^5)
A: 49,
B: -49,
C: -1/49,
D: 1/49.
Answer:
Option B -49
Step-by-step explanation:
-(7^-3)(7^5)
-1/7^3×7^5
-7^2
-49
So option B is correct
Answer:
B
Step-by-step explanation:
-(7^-3) = -1/343
(7^5) = 16807
16807*-1/343 = -49
a) ¿Cuántas décadas han transcurrido desde 1917 hasta 2020
One number is three less than another number. If their sum is 49, find the two numbers.
Answer:
21 and 28
Step-by-step explanation:
A vector has a horizontal component of 14 and a vertical component of 36. Find the direction angle and the magnitude. Direction angle?
Answer:
The direction angle is 68.73 degrees and its magnitude is 38.62.
Step-by-step explanation:
Given that,
The horizontal component of a vector = 14
The vertical component of a vector = 36
Let the magnitude of a vector is v. So,
[tex]v=\sqrt{14^2+36^2} \\\\=38.62[/tex]
For direction,
[tex]\tena\theta=\dfrac{y}{x}\\\\=\dfrac{36}{14}\\\\\theta=\tan^{-1}(2.57)\\\\=68.73^{\circ}[/tex]
So, the direction angle is 68.73 degrees and its magnitude is 38.62.
What’s the product of (23-8c) - (5c-1)
Answer:
[tex]40c^{2}[/tex] -123c + 23
Step-by-step explanation:
1. First you need to distribute the negative sign to the second binomial
(23 - 8c) - (5c - 1)
(23 - 8c) (-5c + 1)
2. Distribute each term in the first binomial to each term in the second binomial, FOIL (first, outer, inner, last)
(23 - 8c) (-5c + 1)
-115c + 23 + [tex]40c^{2}[/tex] -8c
3. Combine the like terms
-115c + 23 + [tex]40c^{2}[/tex] -8c
[tex]40c^{2}[/tex] -123c + 23
hope this helps!
Jada have a monthly budget for her cell phone bill last month she spent 120% of her budget and the bill was $60 what is Jada monthly budget
Assume that the budget is n.
Now we are given that 120% of the budget is equal to $60.
This means that:
60 = 1.2n
Solve the equation for n to know the budget:
60 = 1.2n
n = 60 / 1.2 = 50
Based on the above calculations, Jada's budget is 50$
Answer:
58.8
Step-by-step explanation:
Susan has a piggy bank with 28 coins in it, all dimes and quarters. She has been collecting state quarters and so far has no repeats. If the piggy bank has $5.50. how many more quarters does Susan need before she has a quarter from each of the 50 states?
HELP I WILL GIVE POINTS AND BRAINLIEST
Answer:
She needs 32 quarters.
Step-by-step explanation:
d = dime q = quarters
d + q = 28 so d = 28-q
0.1d + 0.25q = 5.50
0.10 * (28-q) + 0.25q = 5.50
2.80 - 0.10q + 0.25q = 5.50
0.15q = 5.50 - 2.80
0.15q = 2.70
q = 2.70 / 0.15
q = 18 quarters (she has)
50-18= 32 quarters (she needs)
Can someone help me solve this
Answer:
sin x = -5/13
csc x = -13/5
sec x = 13/12
cot x = -12/5
tan x = -5/12
Step-by-step explanation:
**x is in quadrant iv because 3pi/2<x<2pi
if cos x=12/13, then 12 is the adjacent value and 13 is the hypotenuse value. to find sin, or opposite/hypotenuse, use the pythagorean identity. opposite=5 and hypotenuse is given as 13. & since it's in quad iv, the sine (or y) value is negative bc it's below the x axis. thus, sin x = -5/13csc is cosecant, or the reciprocal of sine. so csc x = -13/5sec is secant, or the reciprocal of cosine. so sec x = 13/12tan is opp/adj, so tan x = -5/12. it's negative bc tan is negative in quad ivcot is cotangent, or the reciprocal of tangent. so cot x = -12/5Answer:
8. sin x = -5/13
9. csc x = -13/5
10. sec x = 13/12
11. cot x = -12/5
12. tan x = -5/12
Step-by-step explanation:
The mnemonic SOH CAH TOA can help you with the sine and tangent. You need to rely on your memory (or notes) to find the reciprocal functions.
The dimensions are such that you can recognize this as a 5-12-13 right triangle. Or, you can use the Pythagorean theorem to find the third side from ... O = -√(H² -A²) = -√(169 -144) = -√25 = -5
The given quadrant tells you that O is negative.
__
8. Sin = Opposite/Hypotenuse
Here, the opposite is -5. The hypotenuse is always taken to be positive.
sin x = -5/13
__
9. Csc = 1/Sin
csc x = -13/5
__
10. Sec = 1/Cos
sec x = 13/12
__
11. Cot = 1/Tan = Adjacent/Opposite
cot x = 12/-5
cot x = -12/5
__
12. Tan = Opposite/Adjacent
tan x = -5/12
A ball is shot upward such that its height (in feet) above the ground after t seconds is h(t) = -16t2 + 96t + 5. What is the ball's maximum height?
Answer:
149 feet
Step-by-step explanation:
you have a quadratic equation and you need to fid it's vertex because that is the max height
h(t)= -16t² +96t +5
the x coordinate of the vertex is x= -b/2a for f(x)= ax²+bx+c so in our case
x= [tex]\frac{-96}{2*(-16)}[/tex]= 3 , now we know that the vertex bbelongs to the graph so should verify the equation so we substitute t of the value of x=3 to find y
y= -16*3²+96*3+5= -144+288+5=149
the max height is the coordinate of y because it tels us how much it went up
Select the correct answer.
It is 170 miles from Bruce's house to the city where his brother lives. On his last trip to visit his brother, he drove for 2 hours at 55 miles per
hour. Then he came to some very bad road construction. The rest of the trip took 2 hours. How many miles per hour did Bruce drive for the rest
of the trip?
Va
Answer:
He drove the rest of the trip at 30 miles per hour
Step-by-step explanation:
The rule of the distance is D = v × t, where
v is the speedt is the time∵ It is 170 miles from Bruce's house to the city where his brother lives
∴ D = 170 miles
∵ He drove for 2 hours at 55 miles per hour
∴ t1 = 2 hours and v1 = 55 miles/hour
→ By using the rule above find the distance of this part of his trip
∴ D1 = 55 × 2 = 110 miles
∵ The rest of the trip took 2 hours
∴ t2 = 2 hours
∵ D = D1 + D2
→ Substitute the values of D and D1 to find D2
∴ 170 = 110 + D2
→ Subtract 110 from both sides to find D2
∴ 60 = D2
∴ D2 = 170 - 110 = 60 miles
∵ The rest of the trip is 60 miles
∵ It took 2 hours
∵ D2 = v2 × t2
∴ 60 = v2 × 2
→ Divide both sides by 2
∴ 30 = v2
∴ v2 = 30 miles/hour
∴ He drove the rest of the trip at 30 miles per hour
What is the slope of the line going through the points (2,5) and (-4,-1)?
Answer: The answer is 1.
Step-by-step explanation: The entered points belong to an increasing, linear function.
Equation: y = 1x + 3.
Pls help ... pls thanks
Answer:
12 seeds packets
Step-by-step explanation:
Answer:
12 bcuz he gets 1 flower from a.pack
Click on the picture do number 18 and 19
Answer:
<1=<2Being vertical angles
<2+<3=90° Being complementary angle
m<3=56
now
<2+<3=90
<2=90-56
<2=34
:.<1=34°
A number x divided by -1 is at least -4. what is the inequality
Answer: please carify
Step-by-step explanation:I will change my anwser when you clarify
Answer:
its 4
Step-by-step explanation:
4 dude 4
Maya was 162 cm tall when she was 14 years old. In the next year she grew to 168 cm tall.
What was her percentage increase in height?
Answer:
3.7%
Step-by-step explanation:
PLEASE GIVE BRAINLIEST
Answer:
3.7 percent( can't find percent logo sorry)
Riley rakes 1/6 of a lawn in 2/3 hour. How many lawns can Riley rake per hour?
Answer:
Riley rakes 1/4 of the lawns per hour.
Step-by-step explanation:
It is given that,
Riley rakes 1/6 of a lawn in 2/3 hour.
We need to find how many lawns can Riley rake per hour.
In 2/3 hour Riley rakes 1/6 of a lawn
In 1 hour Riley rakes [tex]\dfrac{1}{6}\times \dfrac{3}{2}=0.25[/tex] = 1/4 of a lawn.
Hence, Riley rakes 1/4 of the lawns per hour.
Round these numbers to the hundred- 6,232 490- 23,058
Answer:
6,200 500 23,000
Hoped this helped:)
Step-by-step explanation:
Answer:
6,232 rounded is 6,200
490 rounded is 500
23,058 rounded is 23,100
Is this correct
Please let me know if it is or not
Give correct answer
I’ll be giving brainliest
Answer:
yes
Step-by-step explanation:
what number should be added to 1253 to get 3000
Answer:
1747
Step-by-step explanation:
3000 - 1253 = 1747
Therefore 1747 should be added to 1253 to get 3000.
3 + 2x = -6x + 4
what’s x
100 points
Answer:
x = 1/8
Step-by-step explanation:
Add 6x to both sides:
3 + 2x = -6x + 4
3 + 8x = 4
Subtract 3 from both sides:
8x = 1
Divide each side by 8:
x = 1/8
So, x = 1/8
At a dinner the meal cost $22 and a sales tax of $1.87 was added to the bill what is the tax rate for meals in this city
Answer: 8.5%
My bad pimp
Answer:
8.5%
Step-by-step explanation:
1.87/22 = .085 x 100 = 8.5%
90 people attended the movies yesterday. 87 people attended the movies today. Is this an increase or decrease? What was the percent change?
Answer:
This is a decrease
Step-by-step explanation:
3.33%
Answer this please thanks
Answer:
b) 8 packages
Step-by-step explanation:
Number of package = Total pounds ÷ weight of one package
= 6 ÷ 0.75
[tex]= \frac{6*100}{0.75*100}\\\\= \frac{600}{75}\\\\= 8[/tex]
A company weighs 1,096 boxes of cereal and finds that 12.5% of them weighed less than one pound. Which of
the following is the number of boxes that weighed less than one pound?
Answer:
500
Step-by-step explanation:
What does corresponding angles mean
Answer: corresponding angles. lie on the same side of a transversal in corresponding positions with respect to two lines that the transversal intersects if the lines are parallel then the corresponding angles are congruent.
Step-by-step explanation: