Answer:
53
Step-by-step explanation:
they are equal (z) shape
PLZ HELP To multiply (7x+3)(7x−3),
you can use the pattern:
(a+b)(a−b)=a2−b2.
What are the values of a and b?
Enter your answers in the boxes below.
a=
b=
Answers:
a = 7xb = 3==========================================================
Explanation:
Match up (7x+3)(7x-3) with (a+b)(a-b)
We have
(7x+3) pair up with (a+b)(7x-3) pair up with (a-b)We can see that a = 7x and b = 3
Furthermore, we can say,
(a+b)(a-b) = a^2 - b^2
(7x+3)(7x-3) = (7x)^2 - (3)^2
(7x+3)(7x-3) = 49x^2 - 9
The values of a and b are 7x and 3 respectively
(7x+3) (7x−3)
Using the format
Factorisation(a + b)(a − b) = a² − b²
Therefore,
a = 7x
b = 3
Therefore,
From (a + b)(a − b) = a² − b²
(7x+3) (7x−3) = (7x)² - 3²
(7x+3) (7x−3) = 49x² - 9
learn more on factorisation here: https://brainly.com/question/22190900
13 1/3 of a number is 30. find the number
A. 225
B. 223
C. 456
D. 552
Answer:
a
Step-by-step explanation:
1/3 is one third and times by 30
How many faces does the following shape have?
Answer:
6 faces. pls mark brainliest
10 points PLEASE HELP
Answer:
170
Step-by-step explanation:
If you look at the other angle it says 20 and a whole circle would be 360 so subtract 360-130 then after that since the angle takes 2 part or however you may say that means u subtract 60 (20+20+20 thee open angle) this means you get 170 (i think im unsure but you can try)
a number is multiplied by 4 and then 12 is added. the result is 36. what is the number?
Answer:
6
Step-by-step explanation:
4 * x + 12= 36
-12 -12
4x = 24
x= 6
Answer: 6
Step-by-step explanation:
The equation will look like this
n(4)+12=36
n=6
6(4)+12
24+12
36
Two opposite numbers are 4 units away from each other. What are the numbers?
Answer: 2 & -2
Step-by-step explanation: it takes 2 units to get to 0 and then 2 more to get to -2
Look at the question below.
The letters in the word JANUARY were put in a bag and drawn randomly. What is the probability of picking an a?
Answer: 2/7
Step-by-step explanation:
There are 7 letters in January, and 2 "a"s in order to find the probability, simply take 2/7. You can either leave it in the fraction form, or use the calculator, showing you have a 0.2857% chance of picking an "a"
2/7
there are 7 letters in jAnuAry and as you can see there are 2 A's so there is a 2/7 chance which is higher of a chance than the rest of the letters which are 1/7 each so it is most likely you would draw A although I can't fully say that because there is a 5/7 chance of drawing the other letters. Another way to say it is there is a 0.28571428571% chance of drawing A but there is a 0.71428571428% chance of drawing any other letter.
Hope this helps :3
Have a good day!
Solve the equation
x - 10 = 4
Answer:
x - 10 = 4
x - 10 + 10 = 4 + 10
x = 14
Answer:
x= 14
Step-by-step explanation:
x-10=4
x=4+10
x=14
Alex rents a car for one day the charge is $28 plus $0.50 per mile Alex wants to spend exactly $30 how many miles can he drive
Answer:
4 milesStep-by-step explanation:
Let the miles is x:
28 + 0.5x = 300.5x = 30 - 280.5x = 2x = 2/0.5x = 4It seems incorrect but Alex can drive 4 miles
The bill for dinner totaled $56 before tax and tip. The restaurant added a 6 percent sales tax. If Sandra wants to include a 16 percent tip calculated on the bill before sales tax is added, what is the total cost of the dinner?
$59.36
$64.96
$68.32
$68.86
What is the approximate area of the shaded sector?
A. 38 cm2
B. 96 cm2
C. 302 cm
D. 603 cm?
Answer:
C. [tex] 302 \: {cm}^{2} [/tex]
Step-by-step explanation:
[tex]Area \: of \: sector = \frac{ \theta}{360 \degree} \times \pi {r}^{2} \\ \\ = \frac{135 \degree}{360 \degree} \times \pi {r}^{2} \\ \\ = \frac{135 }{360 } \times 3.14 \times {(16)}^{2} \\ \\ = \frac{108,518.4 }{360 } \\ \\ = 301.44 \\ \\Area \: of \: sector \approx \: 302 \: {cm}^{2} [/tex]
Algebra help!
If you can also explain that would be appreciated!! If not that's totally okay I just really need the help!!
Answer:
We have the value as;
8x/5
Step-by-step explanation:
Here, we want to get the breakdown of the given expression
We have (x^2 - 9) as (x-3)(x + 3)
So we have;
2x/(x + 3) * (x-3)(x+3)/5 * 4/(x-3)
= 2x * 4/5= 8x/5
Can someone help me!!! Which of the following tables represent(s) an exponential function? List
all correct answers.
a.
X| 0, 1, 2, 3
Y| 0, 0, 0, 0
b.
X| 0, 1, 2, 3
Y| 1, 1, 1, 1
c.
X| 0, 1, 2, 3
Y| 2, 4, 8
d.
X|0, 1, 2, 3
Y|1, -1, 1, -1
y
e.
X| 0, 1, 2, 3
y |1, 2, 3, 4
Answer:
C
Step-by-step explanation:
exponential functions multiply
The diameter of a circle is 34.8 inches. What is the distance from the center of the circle to the edge of the circle?
Answer: The distance from the center of the circle to the edge is
inches,
Answer:
the distance is the radius, so all we have to do is divide 34.8 by 2= 17.4
17.4 inches!
Step-by-step explanation:
AKS 19 -- Dan is driving with an average speed of s. He is driving a total distance of d. What formula represents the total time of his trip? Question 2 options: t=ds t = d s t=ds t=d-s t=sd
Answer:
[tex]t=\dfrac{d}{s}[/tex]
Step-by-step explanation:
Dan is driving with an average speed of s. He is driving a total distance of d.
The average speed of an object is given by :
Average speed = total distance/total time
Let b the time of his trip
So,
[tex]s=\dfrac{d}{t}\\\\or\\\\t=\dfrac{d}{s}[/tex]
So, the formula for the total time of his trip is [tex]\dfrac{d}{s}[/tex].
help me please, brainliested ;)
Answer:
put a dot on -5 on the y axis
Step-by-step explanation:
Answer:
It is a horizontal line across the y-axis, at the value of -five.
Step-by-step explanation:
Like this black line
The center of a circle is (0, -8). The radius is 9. What is the equation of the circle? Select all that apply.
A. x2 + (y + 8)2 = 3
B. x2 + (y + 8)2 = 9
C. x2 + (y + 8)2 = 81
D. x2 + y2 + 16y = 17
E. x2 + y2 + 16y = -55
Answer:
x² + (y + 8)² = 81
Step-by-step explanation:
Centre (h,k) = (0,-8)
radius (r) = 9
(x - h)² + (y - k)² = r²
(x - 0)² + (y + 8)² = 9²
x² + (y + 8)² = 81
50 POINTS
An Ice cube right triangle prism. Use the dimensions shown to find the surface area of this ice cube
A) 24 cm²
B) 27 cm²
C) 36 cm²
D) 54 cm²
Answer:
i think its A
Step-by-step explanation:
Use four unit multipliers to convert 170 square yards to square inches The perimeter of a square is 64 inches
Angle PQRPQR and angle TQVTQV are vertical angles. The measures of the two angles have a sum of 100^{\circ}100
∘
. Write and solve an equation to find x,x, the measure of angle TQVTQV.
Enter your equation and your solution in the space provided. Enter only your equation and solution.
Answer:
same question
Step-by-step explanation:
Which equation represents the line that passes through the point (-3, 2) and has a slope of 2?
O y = 2x + 1
O
y = 2x - 4
O y = 2x - 7
y = 2x + 8
Answer:
y = 2x + 8
Step-by-step explanation:
To find the line, use the equation y = mx + b.
Plug in the slope and given point, then solve for b:
y = mx + b
2 = 2(-3) + b
2 = -6 + b
8 = b
Plug in the slope and b into the equation:
y = 2x + 8
So, the equation of the line is y = 2x + 8
Answer:
m
Step-by-step explanation:
What is the value of k? show your work.
5/4(2-k) =2 (3k-1) - 2/3k
Answer:
hey how do u know if they're tracking u?
Step-by-step explanation:
Need answers asap please help! :)
solve algebraically
1. y = x^2+ 3x - 5
y = x + 3
2. y = x^2- 4x + 6
y = x + 2
3. y = x^2- 10x + 14
y = 7x - 16
4. y = x^2-24
y = x - 12
5. y = x^2- 8x + 28
y = 4x + 8
Answer:
so hard :/
lol XD
srry :(
help!! ________________
Answer:
NNNNNNNNNNNOOOOOOOOOOOOOOOOO i won't help you
Step-by-step explanation:
Jim gives the cashier a $20 bill at the pharmacy.
Write an equation that relates the change c he gets back in dollars to the cost b, in dollars, of his purchases. Which variable represents the independent variable? How much change does he get back if his purchases total $12.83?
Answer:
b= 12.83
c= 7.17
Variable "c" is independent because it does not change. Jim receives $7.17 back.
Three friends went to lunch and ordered the special. They had a coupon of $10 off the bill and they spent $35 in all. Write an equation to represent this situation.
Answer:
35-10/3
Step-by-step explanation:
Find the area of the rectangle with coordinates:
A(-3,5), B(6, 11), C(10,5) and D(1, -1)
Answer:
78
Step-by-step explanation:
Please answer correctly !!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!! HELP !!!!!!!