Answer: One root
Explanation:
x^3 = -343
x^3 + 343 = 0
x^3 + 7^3 = 0
(x+7)(x^2 - 7x + 7^2) = 0 .... sum of cubes factoring rule
(x+7)(x^2 - 7x + 49) = 0
Set each piece equal to zero and solve for x.
You should find that the first piece x+7 = 0 leads to x = -7 as the only real root.
The other piece x^2-7x+49 = 0 leads to two non-real roots, ie complex roots.
Determine if true:
3x9=12+13
Answer:
False
Step-by-step explanation:
3x9=27
3x9=2712+13=25
3x9=2712+13=2527=25
3x9=2712+13=2527=25These 2 numbers don't match.
Hence, the equation is false.
There can be 72 students in
each grade at Miller School. The
fifth grade has 3 teachers. Mrs.
Shaw's class has 21 students.
Mr. Brown's class has 23
students. Mrs. Ralley's class has
23 students. How many more
students can enroll in fifth grade?
Answer:
5 more students caw n enroll in 5th grade
Step-by-step explanation:
21 +23 + 23 = 67
72- 67 = 5
HELPP 10points PLEASE
Answer:
x = 7
y = 2
--
x = 7
y = −x + 9
- Consider the second equation. Insert the known values of variables into the equation.
y = −7 + 9
Add −7 and 9 to get 2.
y = 2
The system is now solved.
x = 7
y = 2 ( 7,2 )
A real estate agent charges $100 to place a rental listing plus 15% of the yearly rent. An apartment was rented by the agent for one year. She charged the landowner $1540. How much did the apartment cost to rent for one year?
Answer:
1655
Step-by-step explanation:
add 100+15 together then add that answer with 1540
Answer:
9,600
Step-by-step explanation:
100+.15x=1540
.15x=100-1540
.15x=1440
X=9,600
The n-4, n, n+3 are consecutive terms of geometry progression. find two possible values of the common ratio.
Write eleven thousand, two hundred
twelve using base-ten numerals. Then
write the number in expanded form.
Answer:
Heyy, you'd have too answer this in using base numerals. Which would just be 11 thousand blocks( you would use thousand place blocks to be specific) . Then 2 " 100 " blocks. And 12 ones blocks n theirs ur answer! Hopefully I helped you out. Have an amazing day
Step-by-step explanation:
Answer: 11,212
Step-by-step explanation:
base-ten numerals: 11,000 + 200 + 12+ = 11,212
number in expanded form: 11,212 =
+ 10,000
+ 1,000
+ 200
+ 10
+ 2
what is 15% of 900? please help
also see comments
Answer:
135
Step-by-step explanation:
Multiply .15 by 900
0.15 x 900 = 135
Hope this helps :)
Answer:
135
Step-by-step explanation:
To find 15% of a number, we can find 10% first then 5%
10% of 900 is 90 (900 ÷ 10 = 90)5% of 900 is 45 (half of 10% of 90)Therefore, 15% of 900 is 135We can also turn 15% into a decimal by dividing 15 by 100: 15 ÷ 100 = 0.15 Now, we can treat 'of' as × and do 0.15 × 900 which is 135.
Hope this helps!
please use an equation step by step and please show the numbers do not use words
Answer:
Sorry but u need another photo i can't see
Can someone please help me
Answer:
you can it's too easy but I haven't any time so I can't solve this
write the equation of th eline that is parallel to x=8 and that passes through the point (-3,-2)
what number is in the hundred thousand place in 243,561
Answer:
2, because 100,000 is said one hundred thousand which means 1 is in the hundred thousand place, and the same applies to this number meaning 2 is in that place.
Step-by-step explanation:
Answer:
2 is in the hundred-thousands place.
What’s the answer to this
Change 1296 to square inches to feet
On the map below, all numbered streets run parallel to each other. Both 3rd and 4th streets are intersected by King Avenue.
A delivery driver is driving around town and has noticed that every time he turns, it creates an angle. What are the measures of Angles X, Y, and Z on the map?
In your answer, give the measures of angles X, Y, and Z, and explain how you calculated each one.
Answer:
x=105, y=75 and z=105.....this is a map of parallellines and a transversal. ....angles x and 75 are supplementary angles x=180-75 ×=105...angles y and 75 are corresponding angles so, y=75..angles x and z are alternate exterior angles z=x
HELPvppvy o o p pyvph
Answer:
the answer is
[tex]24 \sqrt{2} [/tex]
AD ??????? so confused what the
Answer:
3.6 cm
Step-by-step explanation:
Triangle Proportionality Theorem
BD : DE = BA : AC
⇒ 6 : 10 = BA : 16
⇒ [tex]\mathsf{\dfrac{6}{10} = \dfrac{BA}{16}}[/tex]
⇒ [tex]\mathsf{BA=\dfrac{6}{10} \times16}[/tex]
⇒ BA = 9.6
AD = BA - BD
⇒ AD = 9.6 - 6 = 3.6 cm
Solve the equation 4y² = 7y
When measuring distance 43 peas are approximately equal to 19 beans. How many peas are equal to 133 beans?
Answer:
301
Step-by-step explanation:
Assuming the proportion holds over longer distances, the ratios can be written ...
peas/beans = p/133 = 43/19
p = 133(43/19) = 301
301 peas are equal to 133 beans.
Solve all 4 Questions . 50 Points + Brainelist
i)
length of rectangle : x + 5ii)
breadth of rectangle : x - 3iii)
area of rectangle = length * breadth105 = (x + 5)(x - 3)105 = x² + 2x - 15 x² + 2x - 15 - 105 = 0 x² + 2x - 15 - 105 = 0 x² + 2x - 120 = 0iv)
x² + 2x - 120 = 0x² + 12x -10x - 120 = 0x( x + 12) -10 (x +12) = 0(x-10)(x+12)x = 10, -12With x = -12, Not applicable so x will be 10
Length → x + 5 → 10 + 5 → 15
Breath → x -3 → 10 - 3 → 7
Therefore,
Length : 15 cm
Breadth : 7 cm
Answer:
Given:
The length of the rectangular shaped lamina is 5 cm more than the length of the square shaped lamina.The breadth of the rectangular shaped lamina is 3 cm less than the length of the square shaped lamina.x = side length of squarei) Length of rectangular shaped lamina = (x + 5) cm
ii) Breadth of rectangular shaped lamina = (x - 3) cm
ii) Area of a rectangle = length × breadth
⇒ area of rectangular shaped lamina = (x + 5)(x - 3) cm²
Given:
area of rectangular shaped lamina = 105 cm²⇒ (x + 5)(x - 3) = 105
Expand:
⇒ x² - 3x + 5x - 15 = 105
Combine like terms:
⇒ x² + 2x - 15 = 105
Subtract 105 from both sides:
⇒ x² + 2x - 120 = 0
iv) Solve x² + 2x - 120 = 0
Rewrite:
⇒ x² + 12x - 10x - 120 = 0
Break into groups:
⇒ (x² + 12x) - (10x + 120) = 0
Factorize the parentheses:
⇒ x(x + 12) - 10(x + 12) = 0
Factor out common term:
⇒ (x - 10)(x + 12) = 0
Therefore,
x - 10 = 0 ⇒ x = 10
x + 12 = 0 ⇒ x = -12
As length is positive, x = 10 only
Therefore,
Length of rectangular shaped lamina = 15 cm
Breadth of rectangular shaped lamina = 7 cm
For numbers 11-13, refer to the figure below.
Answer:
c, a, a, c, a
Step-by-step explanation:
let me know if you want me to explain everyone, but I think you're more looking for the answer, so here they are(with short explanations)
11.c, 100. Vertical angles are congruent.
12.a, 70. Supplementary=180*. We know that B=110(from drawing). 110+70=180
13.a, 70. We know that a is 70 from question 12. vertical angles are congruent, so c=70
14.c, 90. from the attached image, we see that 12 and 3 makes 90* angle.
15.a, AY. Both have the letters AY in their names.
let me know if im correct!
Simplify (-7x+5)-(2x^2-8x+6) in standard form
Answer: -2x² - 15x + 11
Step-by-step explanation:
Solve the equation by using the quadratic formula.
3x² - 1 =5x
Answer:
There!!
Step-by-step explanation:
mark me brainliest!!
on a number line what numbers are either negative or greater than 5
PLEASEEEEEEE help im deperate
Answer:
Every number to the right of 5 is greater on a number line
Step-by-step explanation:
Place the numbers 0 to 8, inclusive, in the magic square so that the sum of the numbers in each row, column, and diagonal is the same number, 12.
Answer: See attached table
Step-by-step explanation:
[tex]\begin{table}[]\begin{tabular}{lllll} & & & & \\ & & & & \\ & & & & \\ & & & & \end{tabular}\end{table}[/tex]+---+---+---+
| 1 | 8 | 2 |
+---+---+---+
| 6 | 4 | 2 |
+---+---+---+
| 5 | 0 | 7 |
+---+---+---+
Proofs:
First row: 1+6+5 = 12
Second row: 8+4+0 = 12
Third row: 2+2+7 = 12
First column: 1+8+2 = 12
Second column: 6+4+2 = 12
Third column: 5+0+7 = 12
Diagonal starting from top left to bottom right: 1+4+7 = 12
Diagonal staring from top right to bottom left: 2+4+5 = 12
Three pounds of apples costs $1.09. How much will 11 pounds of apples cost? Round to the nearest cent.
Answer:
Step-by-step explanation:
Comment
This is a proportion question. That means that the ratios given are equal. There are 4 facts all together. 3 are given, you have to solve for the 4th. The procedure is the same every time.
Equation (proportion)
cost of apples 1.09/ Number of apples (3) = cost of nearly a dozen (x)/Number = 11.
1.09/3 = x / 11 Cross Multiply
3x = 1.09 * 11 Combine the right
3x = 11.99 Divide by 3
3x/3 = 11.99/3
x = 3.99
Answer
4.00 per pound
Sketch a graph of
x
−
y
=
−
4
Answer:
In the photo is show how the graph should look
The Diamond Rule says two factors, m and n, must multiply to get to the top number and add to get to the bottom number.
What are the possible values for m and n?
By solving a system of equations, we will see that the values of n and m are 3 and -4.
How to get the values of n and m?
We need to get two values n and m such that:
n*m = -12
n + m = -1
So this is a system of equations, to solve it, we first need to isolate one of the variables in one of the equations. I will isolate n on the second equation:
n = -1 - m
Then, replacing that on the other equation we get:
(-1 - m)*m = -12
-m - m^2 = -12
-m^2 - m + 12 = 0
This is a quadratic equation, the solutions are given by Bhaskara's formula:
[tex]m = \frac{-(-1) \pm \sqrt{(-1)^2 - 4*(-1)*12} }{2*-1} \\\\m = \frac{1 \pm 7}{-2}[/tex]
Now, let's take the first solution for m:
m = (1 + 7)/-2 = -4
Then the value of n is the other solution, (or we can use the equation for n that we found above):
n = -1 - m = --1 - (-4) = 3
Then the two numbers are 3 and -4, meaning that the correct option is the first one.
If you want to learn more about systems of equations, you can read:
https://brainly.com/question/13729904
I Really need Help IF you know how to do this please help!
11. Write a formula for the area of the shaded region in terms of x.
2
2
x + 5
okay so basically we see two rectangles right, so we can subtract the small from the big to leave the shaded region behind: so we take the area of the big rectangle first, (x+5)*4 and then we subtract the small area which is 2*2 so that we get an equation like this: (x+5)*4 - 4 --> 4x+20-4 --> 4x+16
A student orders food from the menu shown below he orders 1 hotdog 1 popcorn 3 bags of chips and one soda how much money did he spend
(1 hotdog : 1.75)
( 1 popcorn : 1.25)
(3 bags of chips : 0.75)
(One soda : 1.50)
Answer:
1.75 + 1.25 + 1.50 + .75(3) = $6.75 total
Step-by-step explanation:
Make sure to multiply .75 x 3 because there are 3 bags of chips. That gives you $2.25 in chips to add to the hotdog, popcorn, and soda total.
Ann started walking to her grandparents' house at 9:38 A.M. It took her 41 minutes to get there. Then, she played in the backyard for 1 hour and 56 minutes.
When did Ann finish playing in the backyard?
The time Ann finished playing in the backyard is 12 : 15 pm
How to find the time Ann finish playing in the backyardTime Ann started walking to her grandparents' house = 9:38 A.MTime taken to get there = 41 minutesTime taken to play in the backyard = 1 hour and 56 minutesTotal time = 9:38 + 41 minutes + 1 hour 56 minutes
= 10:19 + 1 hour 56 minutes
= 12 : 15 pm
Therefore, the time Ann finished playing in the backyard is 12 : 15 pm
Learn more about time:
https://brainly.com/question/4931057