Answer:
x = ±25
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Algebra I
Multiple RootsStep-by-step explanation:
Step 1: Define
x² = 625
Step 2: Solve for x
Square root both sides: x = ±25Step 3: Check
Plug in x into the original equation to verify it's a solution.
x = -25
Substitute in x: (-25)² = 625Exponents: 625 = 625Here we see that 625 does indeed equal 625.
∴ x = -25 is a solution to the equation.
x = 25
Substitute in x: 25² = 625Exponents: 625 = 625Here we see that 625 does indeed equal 625.
∴ x = 25 is a solution to the equation.
HEEELPPPPP PPLS The second side of a triangle is 8 inches less than the first side. The third side is 14 inches more than the first side. The perimeter of the triangle is 78 inches. Find each side of the triangle.
Answer: ):
Step-by-step explanation:
Answer:
second side is 16
third side is 38
Step-by-step explanation:
x + (x - 8) + (x + 14) = 78
3x + 6 = 78
3x = 78 - 6
3 x = 72
x = 72/3
x = 24
24 + (24 - 8) + (24 + 14) = 78
24 + 16 + 38 = 78
8-4x for x = 9
The expression equals I
Answer:
- 28
Step-by-step explanation:
Step 1:
8 - 4x Equation
Step 2:
8 - 4 ( 9 ) Input x value
Step 3:
8 - 36 Multiply
Answer:
- 28 Subtract
Hope This Helps :)
find the surface area of the cereal box of 30x20x5
Answer:
1700 units squared
Step-by-step explanation:
Answer:
ITS 3000
Step-by-step explanation:
Last month you spent $30 on clothing. This month you spent 150% of what you spent last month. Set up a proportion to model this situation. How much did you spend this month?
You spent $*blank* this month.
Answer:
$45
Step-by-step explanation:
x=1.5(30)
x=45
Slope= 3 point (-4,6)
Answer:
y = 3x + 18
Step By Step Explanation
I hope this is what you wanted, I don't know what the answer was supposed to be.
PLS HELP WILL GIVE BRAINLIEST
How can parents that dont have a O blood type still have a O blood type baby???
Answer: While a child could have the same blood type as one of his/her parents, it doesn’t always happen that way.
Step-by-step explanation:
For example, parents with AB and O blood types can either have children with blood type A or blood type B. These two types are definitely different than parents’ blood types!
Which one should I choose
Answer:
x^2 + 7x + 12
Step-by-step explanation:
distributive property
What are the solutions of the quadratic equation?
12x^2 - 64 = -x^4
$43 shirt; 6% tax Please Help!!
Answer:
tax is 2.58
Step-by-step explanation:
Answer:
.06 times 43 is $2.53 in tax
Step-by-step explanation:
When Angelo cashed a check for $170, the bank teller gave him 12 bills, some $20 bills and the rest $10 bills. How many bills of each denomination did Angelo receive?
Answer:
7 ten dollar bills and 5 twenty dollar bills
Step-by-step explanation
He recieved 5 bills of $20 and 7 bills of $10.
What is a expression? What is a mathematical equation?A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.A mathematical equation is used to equate two expressions.Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.We have the following statement Angelo cashed a check for $170, the bank teller gave him 12 bills, some $20 bills and the rest $10 bills
We can write -
20x + 10y = 170
x + y = 12
So, we can write -
y = 12 - x
We can write -
20x + 10(12 - x) = 170
20x + 120 - 10x = 170
10x = 50
x = 5
then -
y = 7
Therefore, he recieved 5 bills of $20 and 7 bills of $10.
To solve more questions on Equations, Equation Modelling and Expressions visit the link below -
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A proportional relationship is graphed on the coordinate plane. The line that represents the relationship passes through points (0,0) and (5,10). What is the unit rate of the proportional relationship?
Answer:
Step-by-step explanation:
HELLPPPP
Ms. Hartt burns 300 calories when she runs for 1 hour. If Ms. Hartt runs 5 hours in a week how many calories would she burn?
-19 + 4k - 15k - k -9
Answer:
Let's simplify step-by-step.
−19+4k−15k−k−9
=−19+4k+−15k+−k+−9
Combine Like Terms:
=−19+4k+−15k+−k+−9
=(4k+−15k+−k)+(−19+−9)
=−12k+−28
Answer:
=−12k−28
Step-by-step explanation:
i need help with this
Answer:
X=5
Step-by-step explanation:
20= 1/2 x 8 x X
20= 4x
x=5
A .14kg baseball is dropped from rest. It has a momentum of .78kg x m/s just before it lands on the ground. For what amount of time was the ball in the air?
Answer
what r the options? a b c d?????
i wuld say it is 2.5
Step-by-step explanation:
I have reached 250 thanks which means I helped 250 wonderful people :D
Answer:
that's great to hear :)
Step-by-step explanation:
Answer:
Wow! Congratulations....
Other:
Umm brainliest?
PLEASEEEE HELPPPPP!!!!!!!
plz don't answer if you don't know because this is a exam
Answer:
-1.5
Step-by-step explanation:
9 correct : 15 questions = 45 correct: q questions
please help me
Answer: it should be 75
Step-by-step explanation:
9 times 5 is 45 so 15 times 5 should be 75
Which of the following is true about the linear function f(x) = 5?
Function fis parallel to the x-axis and has a slope equal to zero.
Function fis parallel to the x-axis and has an undefined slope.
Function fis perpendicular to the x-axis and has a slope equal to zero.
Function fis perpendicular to the x-axis and has an undefined slane
Answer:
Function f is parallel to the x-axis and has a slope equal to zero
Step-by-step explanation:
The equation of a line
The slope-intercept form of the equation of a line is given by:
y = mx + b
Where:
m = slope of the line
b = y-intercept, or the point where the graph intercepts the y-axis
We have the equation of a line:
y = 5
It corresponds to a line with m=0 and b=5. This line has a slope of 0 and a y-intercept of 5.
A zero-slope line is a horizontal line, i.e., parallel to the x-axis.
The correct statement is (first choice):
Function f is parallel to the x-axis and has a slope equal to zero
It was found that an unknown solid had a density of 20 g/cm3 and a volume of 30 cm3. Determine the mass of the solid.
Answer:
30
Step-by-step explanation:
The mass of the solid is 600 grams if the unknown solid had a density of 20 g/cm3 and a volume of 30 cm3
What is density?It is defined as the mass-to-volume ratio. The density indicates the object's density and is represented by the symbol. The density is measured in kilograms per cubic meter.
It is given that:
It was found that an unknown solid had a density of 20 g/cm3 and a volume of 30 cm3
As we know, from the definition of density:the mass-to-volume ratio
Density = mass/volume
mass = densityxvolume
mass =20x30
mass = 600 grams
Thus, the mass of the solid is 600 grams if the unknown solid had a density of 20 g/cm3 and a volume of 30 cm3
Learn more about the density here:
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Gina popped 7 times as many balloons as Sam did. If Sam popped n balloons, how many balloons did Gina pop?
O A 7-n
7n
O c 7+1
o
Answer:
B. 7n
Step-by-step explanation:
Gina popped 7 times more than Sam, the keyword is times, so u have to multiply the amount of balloons Sam poppes, n, with 7
If it said Gina popped 7 balloons more, then it would be 7 + n
The Mt. Vernon Christian High basketball
team played 24 games during the basket-
ball season. They won 4 games more than
they lost. How many games did they win?
Answer:
Let x represent the number of games they lost. Then they won 24 + x games. Since the team played 70 games, x + (24 + x) = 70. Thus 2x + 24 = 70. Dividing both sides of the equation by 2, we have x + 12 = 35. Hence, x = 35 - 12 = 23.
How do I solve this?
Answer:
The answer is 7.5
Step-by-step explanation:
3x+18=9x−27
3x+18−9x=9x−27−9x
−6x+18=−27
−6x+18−18=−27−18
−6x=−45
−6x /−6 = −45 /−6
x = 15 /2 which is equal to 7.5 as a decimal.
The rule is applied to ΔBCD to produce ΔB"C"D". Point B" of the final image is at (–4, 1).
What are the coordinates of point B on the pre-image?
(–2, –5)
(0, –5)
(2, 3)
(5, 0)
Answer:
2,3
Step-by-step explanation:
i took the quiz
Answer:
2,3
Step-by-step explanation:
Find the slope given the following ordered pairs (6,11) and (8,19)
Answer:
4
Step-by-step explanation:
solved it
Answer:
m = 4
Step-by-step explanation:
m = (y2 - y1) / (x2-x1)
Given points (6,11) and (8,19) Let y2 = 19, y1 = 11, x2 = 8, and x1 = 6
Subbing in
m = (19-11)/(8-6) = 8/2 = 4
So, the slope is 4
ABC IS A TRINAGLE
WORK OUT ANGLE X
GIVE YOUR ANSWER CORRECT TO 3 S.F
Answer:
[tex]2 {2 = | \leqslant 3 > 3 |2 > \times 2 \frac{?}{ \tan( \sec(\pi\% log_{?}( \beta ) ) ) } | | }^{?} [/tex]
7=9/8ths
8 times the difference between a number and 6 is equal to 4 times the number.
What is the number?
OA. 12
OB. 4
OC. 16
OD. 48
Answer:
it's either A (12) or B(4) but I think it's 12
Step-by-step explanation:
if we make it into an equation, we get
8(x-6)=4x
8x-48=4x
-48=-4x
-12=-x
x=12
the reason why it might be 4 as well is if we switch the order
8(6-x)=4x
48-8x=4x
48=12x
x=4
So both of those could be correct, but I'm thinking that because they said between a number and 6, then x goes first, so therefore, I think it is 12
37) True or False: A high school principal surveys the community about the high school's basketball program.
The school sends surveys to 5,000 households and receives 120 forms back. This is an example of nonresponse.
Answer:
true
Step-by-step explanation:
Write an equation in slope intercept form with the slope as 1/3 and the point (-3,4)
Answer:
[tex]y = \frac{1}{3}x + 5[/tex]
Step-by-step explanation:
Slope (m) = 1/3
(-3 , 4)
y - y1 = m(x -x1)
y - 4 = (1/3) (x - [-3])
[tex]y - 4 = \frac{1}{3}(x + 3)\\\\y - 4 = \frac{1}{3}x + \frac{1}{3}*3\\\\y - 4 = \frac{1}{3}x + 1\\\\ y = \frac{1}{3}x + 1 + 4\\\\ y = \frac{1}{3}x + 5[/tex]
what 0.05% in as a decimal and a mixed number in simplest form
deimal: 0.05% / 100 = 0.0005
mixed number: 5/10000