Answer:
x = -0.8 and 10.8
Step-by-step explanation:
Given the equation x2 – 10x – 8= 0
Using the general formula
x = -b±√b²-4ac/2a
x = -(-10)±√(-10)²-4(1)(-8)/2(1)
x = 10±√100+32/2
x =10±√132/2
x = 10±11.489/2
x = 10-11.489/2 and 10+11.489/2
x = -1.489/2 and 21.489/2
x = -0.8 and 10.8
Please help!
Acellus
Find the volume of the following
square pyramid.
6 cm
6 cm
6 cm
V = [?] cm3
Enter
Answer: 72
Step-by-step explanation:
V=1/3bh
B= 6*6= 36
H=6
1/3*36*6
Answer: 72
Step-by-step explanation: 6*6*6/3
36x+27y in factored form
choose 3 values that would make this inequality true 28 + x > 42
100
0
13
15
5
14
24
Answer:
100, 15, 24 I think that is it
Step-by-step explanation:
Answer: 100, 24, 15
Step-by-step explanation:
28+100= 128, 128>42
28+24=52, 52>42
28+15=43, 43>42
Andrea is selling scooters. This equation shows how Andrea's revenue () depends on the number of scooters sold (x). y = 4x How much revenue does Andrea get for each scooter?
Answer:
Andrea get for each scooter?
Step-by-step explanation:
Determining the Length of a Rod
Jorge needs to ship a thin metal rod to a metalworking shop. The only boxes available for shipping are 7-inch cubes. To the nearest inch, what is the length of the longest metal rod that can be sent?
11 inches
12 inches
13 inches
14 inches
The length of the longest metal rod that can be sent in a 7-inch cube box is 12 inches.
To determine the length of the longest metal rod that can be sent in a 7-inch cube box, we need to consider the diagonal of the cube as the maximum length of the rod.
In a cube, the diagonal can be calculated using the Pythagorean theorem. The formula for the diagonal of a cube is:
diagonal = √(side^2 + side^2 + side^2)
Since we know that the cube has sides of 7 inches, we can substitute this value into the formula:
diagonal = √(7^2 + 7^2 + 7^2)
diagonal = √(49 + 49 + 49)
diagonal = √147
diagonal ≈ 12.124 inches
Therefore, the correct answer is:
12 inches
This means that the metal rod should not exceed 12 inches in length in order to fit inside the 7-inch cube box for shipping. Any rod longer than 12 inches would not be able to fit diagonally within the box.
For more such questions on metal rod
https://brainly.com/question/14071390
#SPJ8
36/9+2/9 fraction adding!!!
Answer: 38/9
Step-by-step explanation: Because the fractions presented already have common denominators, the only thing you need to do in order to solve the problem is add the numerators. 36+2= 38, and you keep your denominator the same when adding fractions (when they are the same).
what are the inequalities
Answer:
an inequality is a mathematical statement that shows that an expression is lesser than or more than the other.
PLSSSSSSSSSSS ANSWER FASSTTT!!!!!!
Answer:
the only solution is 0
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
2(x+3)=2x+6
Multiply 2 with the numbers in the parenthesis
2x+6=2x+6
Tyra’s father is two years more than three times as old as she is. If Tyra is nine years old, how old is her father?
A-29
B-27
C-17
D-18
E-32
Answer:
A - 29
Step-by-step explanation:
she is Nine so
her dad will be
2+9×3
2+27
29
Answer:
hi how are you doing today Jasmine
Mike saves $42 a week for 7 weeks. During his 8-day vacation, he plans to spend $8.25 each day for snacks. Which expression shows how much money he will have left?
Answer:
($42 × 7) - ($8.25 × 8)
Step-by-step explanation:
Given that
Mike saves $42 a week for 7 weeks
And, his 8 day vacation, he plans to spend $8.25 each day
We need to find out the expression of how much he would have left
So,
Since the amount $42 is for a week
So for 7 weeks, it would be
= $42 × 7
And, he spends $8.25 each day,
And, for 8 days, it would be
= $8.25 × 8
So, the expression is
= ($42 × 7) - ($8.25 × 8)
57:50
What is the solution to the equation?
-9
a+53 -
3+53-9
a-
at
9
a
a+
Answer:
a-
Step-by-step explanation:
hi
True or false
You always have to use x and y as your variables when writing
equations for word problems.
Answer:
false
Step-by-step explanation:
you can use whatever letters you want to represent things. x and y make sense that you would use just them for graphing, but if it is a word problem you could have like c for cost or t for time or something
Can someone please help me
g(n) = n2+ 2; Find g(3)
Answer: 8
Step-by-step explanation: in this problem n=3 so you are to substitute 3 in for the variable n.
3*2+2
3*2=6
6+2=8
g(3)=8
Hope this helps (^_^)
Answer:
8
Step-by-step explanation:
g(3) means to plug 3 in as the n-value
g(3)= (3)2+2
=6+2
g(3)=8
HELP ITS URGENT
a. b. c. or d.???
Answer:
It's the last option, (a-c)√x + b√y
Step-by-step explanation:
Dakota earned $8.75 in interest in Account A and $28 in interest in Account B after 21 months. If the simple interest rate is 3% for Account A and 4% for Account B, which account has the greater principal?
so B should be the answer
Step-by-step explanation:
account a would have 16.42 in their account after 21 months and b would have 64.77 after 21 months also
which of the following mean the same as x-intercept?
Answer:
(A), (D), and (E)
Step-by-step explanation:
In a quadratic function, the solutions are always on the x-axis, which means that it can be another word for x-intercept. Also, a zero and a root are the same thing, and they are both x-intercepts. Hope this helps!
Find the missing term: (x+3)² = x² + 6x + _____
Answer:
9
Step-by-step explanation:
The formula for (a + b)^2 expands out to: a^2 + 2ab + b^2. In the case of this problem, a equals x and b equals 3. We can substitute to get:
(a + b)^2 = a^2 + 2ab + b^2
(x + 3)^2 = x^2 + 2(x)(3) + (3)^2
(x + 3)^2 = x^2 + 6x + 9
So, the missing term is 9.
Another way to do this is to multiply (x + 3)(x + 3) since it's the same thing:
(x + 3)(x + 3)
x^2 + 3x + 3x +9
x^2 + 6x + 9
By solving this way, you get the same answer.
Answer:
It would be 9.
Step-by-step explanation:
To do this, lets expand the equation (x+3)^2 by turning it into:
(x+3)(x+3)
Now, lets try something called the FOIL method. This is where all of the terms of the equation are multiplied in the order:
1) First
2) Outer
3) Inner
4) Last
So in (x+3)(x+3), each of the first parts of each parentheses box are x's, and x times itself equals x^2 so:
x^2 + ? + ? so far.
Next, with the Outer & Inner parts, they would be x * 3 and 3 * x. With this, you would get 3x and 3x. These can be added to get 6x, the middle part of the equation.
x^2 + 6x + ? so far.
Lastly, for the answer. Time to do the last part of each parentheses box, you would get 3 * 3, which gives you 9.
x^2 + 6x + 9.
Patti records the heights and the shoe sizes of the girls on her volleyball
team. She plots the data and makes a scatterplot comparing shoe size and
height. Patti finds that the trend line that best fits her results has the equation
y= 2x + 52.
If a girl on her team wears a size 3 shoe, how many inches tall would Patti
expect her to be?
A. 58 inches B. 60 inches. C. 64 inches D. 62 inches
Answer:
58 inches
Step-by-step explanation:
Just did it
Answer:
( A ) p 3 x
Step-by-step explanation:
Jan says that a rhombus is a parallelogram and that every parallelogram is also a rhombus. Is Jan correct?
Answer:
No
Step-by-step explanation:
A parallelogram has opposite sides parallel and equal in length. Also, opposite angles are equal. Squares, rectangles, and rhombuses are all parallelograms. So all parallelograms are not rhombuses.
find the distance.show your work.
intial velocity is 30.20 meter per second and time Is 32.8 second
Answer:
990.56
Step-by-step explanation:
because, Distance=velocity× time
April has 5 milligrams of zinc and 0.25 milligrams of copper. How much more zinc does she have than copper?
Answer:
the answer is 4.75
Step-by-step explanation:
5-0.25=4.75
help with these all no links- I MEAN IT! and no oh i just came for the points cr_ap brainlyest if correct
Answer:
#1
Least value = 5#2
Median = 56, option C#3
Median = 113, option C#4
A = 10, the minimum point#5
Q1 = 99.5, the median of the lower half of data, option CThe perimeter of a rectangular building is 462 meters. It is 131 meters long. How wide is it?
Robert paid $41.00 for 4 movie tickets. Each ticket cost the same amount. What was the cost of each movie ticket in dollars and cents? Type in your answer without the '$' sign.
Answer:
10.25
Step-by-step explanation:
hope this helps with the problem
Hey I need help, what is the area of this!
Answer:
12 cm^2
Step-by-step explanation:
Here the base and height of a triangle are given. To find the area, we use the formula A = (1/2)(base)(height), which here is
A = (1/2)(8 cm)(3 cm) = 12 cm^2
I need help on this question pls help see this A.S.A.P
Answer:
A, E
Step-by-step explanation:
a quadrilateral is a four-sided figure.
it is a square
I need help! would appreciate it
Answer:
X is about 58.41 degrees
Step-by-step explanation:
For this problem, lets use sine, since we have the opposite angle from x and we have the hypotenuse.
Therefore, with the equation for sine, we would get
sin(x) = 23/27
sin(x) = 0.851
Now, since we're solving for an angle, inverse it by adding a -1 to move over the sin.
x = sin-1 23/27
Last, use a calculator to get the answer.
X is about 58.41 degrees
If you flip a coin and roll a six sided die what is the probability that you will flip a heads and roll at least a three
Answer:
1/3
Step-by-step explanation:
H3,H4,H5,H6
p=1/2×1/6+1/2×1/6+1/2×1/6+1/2×1/6
=4×1/2×1/6=1/3
how do we say the expression in words?
can somebody help me pls rn
Answer:
Step-by-step explanation:
1 Escritura unida
Según la NGLE se unen las palabras que se interpretan como una unidad y en las que, por tanto, la marca de plural solo afecta al último elemento:[1]
el bajorrelieve, los bajorrelieves
la mediapunta, las mediapuntas
En un buen número de casos, el primer elemento puede seguir teniendo individualidad para parte de los hablantes y admitir la marca del plural. La Gramática admite algunos de esos casos, de modo que las dos formas son posibles, que se escribirán unidas o separadas según se dé ese plural o no:
el puercoespín, los puercoespines; el puerco espín, los puercos espines
el arcoíris, los arcoíris; el arco iris, los arcos iris
el medioambiente, los medioambientes; el medio ambiente, los medios ambientes.
el pavorreal, los pavorreales; el pavo real, los pavos reales
La Gramática prefiere, como norma general, la forma en una palabra.