Find the length of the third side to the nearest tenth.
3
9
Answer:
8.5
Step-by-step explanation:
X^2 = 9^2 - 3^2
x^2 = 81 - 9
x^2 = 72
x = √72
x = 8.485
PLS I NEED HELP!!!!! Simplify.
√98
Answer:
7√2
Step-by-step explanation:
Answer:
I think that is simplyfied
Step-by-step explanation:
whats the answer giving brainliest :D
Answer: D
Step-by-step explanation:
What is the number that when you multiply by 2 and add 7 to the product you get is 10.8 pls answer
Answer:
1.9
Step-by-step explanation:
2x+7=10.8
2x=3.8
x=1.9
1.9x2=3.8+7=10.8
The required number is 1.9, when multiply by 2 and add 7 to the product gives 10.8.
What are equation models?The equation model is defined as the model of the given situation in the form of an equation using variables and constants.
Here,
let the number be x,
According to the question,
2x + 7 = 10.8
Simplifying the above expression,
2x = 10.8 - 7
2x = 3.8
x = 1.9
Thus, the required simplified value of the given equation model is 1.9.
Learn more about models here:
https://brainly.com/question/22591166
#SPJ5
Quiz
Active
Which pair of undefined terms is used to define a ray?
line and plane
plane and line segment
point and line segment
point and line
Answer:
Answer: D- point and line
Step-by-step explanation:
A racquet tennis is on sale for 25% off. Find the original price if the sale price is $30.
Answer: 7.5
Step-by-step explanation:
Because it would be 25/100 times 30 because 25% and then it would be simplified inti 1/4 times 30 then it would be 7.5.
(this is only 7th-grade math!!) how to find the rates?
also sorry if some of the ones i put are wrong, i have a big headache rn and i cant focus on math
Answer:
i think under 3 1/2 its 87.50 and under the 4 its 100
Step-by-step explanation:
for every 1/2 hour he gets $12.50
i hope this is right :)
For each ordered pair determine whether it is a solution to the system of equations 2x-7y=8 -3x+2y=5
Answers:
(-3,-2)
(4,0)
(5,4)
(-7,-8)
Answer:
The solution of this system of linear equations is [tex](x,y) = (-3,-2)[/tex].
Step-by-step explanation:
Let be the following system of linear equations:
[tex]2\cdot x - 7\cdot y = 8[/tex] (1)
[tex]-3\cdot x + 2\cdot y = 5[/tex] (2)
From (1) we clear [tex]y[/tex]:
[tex]2\cdot x -8 = 7\cdot y[/tex]
[tex]y = \frac{2\cdot x - 8}{7}[/tex]
And we apply this variable in (2):
[tex]-3\cdot x+2\cdot \left(\frac{2\cdot x -8}{7} \right)= 5[/tex]
[tex]-3\cdot x +\frac{4}{7} \cdot x -\frac{16}{7} = 5[/tex]
[tex]-\frac{17}{7}\cdot x = \frac{51}{7}[/tex]
[tex]x = -\frac{51}{17}[/tex]
[tex]x = -3[/tex]
And the value of [tex]y[/tex] is:
[tex]y = \frac{2\cdot (-3)-8}{7}[/tex]
[tex]y = -\frac{14}{7}[/tex]
[tex]y = -2[/tex]
The solution of this system of linear equations is [tex](x,y) = (-3,-2)[/tex].
Rewrite the expression 18 with an
exponent.
Ben's car needs work. The mechanic charges $140 for parts plus $48 per hour for
labor. The mechanic said the bill will be at least $300. What is the possible number of
hours that the mechanic will work on Joe's car? Use an inequality to solve this problem.
the mechanic will work at least 6hours
Amir solved the following equation. describe the first mistake he made.
2x-2=14
-2 -2
2x =12
2. 2
X=6
Answer:
he faked too much
Step-by-step explanation:
Find the GCF of 24 and 108.
The GCF is 4.
The GCF is 3.
The GCF is 12.
The GCF is 2.
Answer:
Step-by-step explanation:
24=6*4
2*2*2*3
108=2*2*3*3*3
gcf=12
determine the rate of change for the graph from 2014 to 2015:____ students per year
Answer:
The answer would be 9
Step-by-step explanation:
The function f(x) = x^3
has been transformed, resulting in function m.
m(x) = 1\3x^3 + 6
As x approaches positive infinity,
m(x)
approaches___
As x approaches negative infinity, m(x) approaches____
Answer:
1. positive infinity
2. negative infinity
Step-by-step explanation:
I just answered this question and got it right
Answer:
A. positiveB. NegativeStep-by-step explanation:
platoHELPPPPPPPPPP 7TH GRADE
Answer:
2400 m2
Step-by-step explanation:
the eqaution is 40*60
Answer:
2400m²
Step-by-step explanation:
that is the answer
40 x 60 = 2400m²
I need help!
And if you can explain that would be good!
Answer:
meema, papa, and then auntie jo
Step-by-step explanation:
you need to find the slope of each of them and then determine which one is the fastest and which one is the slowest.
meema: 48-24/4-2 = 4/2 = 2
papa: 40-24/5-3 = 16/2 = 8
auntie jo: 45-18/5-2 = 27/3 = 9
im in algebra two so you can trust my answer. happy holidays and stay safe!
what is 2x - y = -42
Answer:
A linear equation
Step-by-step explanation:
It just is
Answer:
Step-by-step explanation:
2x + -1y = -42
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add 'y' to each side of the equation.
2x + -1y + y = -42 + y
Combine like terms: -1y + y = 0
2x + 0 = -42 + y
2x = -42 + y
Divide each side by '2'.
x = -21 + 0.5y
Simplifying
x = -21 + 0.5y
hope helps you
Students in school - how do we pay taxes? Get a job? Raise children?
Schools- solve for x
Plz help me With number 8 don’t get it thx
Are the two triangles similar? If so, why are they similar?
Select the correct answer.
2n
7
Which expression is equivalent to n + 4 + n - 1 if no denominator equals zero?
Answer:2n + 3
Step-by-step explanation:
The provided expression is equivalent to the first expression in the option, choice (A) is correct.
What is an expression?It is defined as the combination of constants and variables with mathematical operators.
The question is incomplete.
The complete question is in the picture, please refer to the attached picture.
We have expressions:
[tex]\rm = \dfrac{2n}{n+4}+\dfrac{7}{n-1}[/tex]
[tex]\rm =\dfrac{2n\left(n-1\right)}{\left(n+4\right)\left(n-1\right)}+\dfrac{7\left(n+4\right)}{\left(n+4\right)\left(n-1\right)}[/tex]
[tex]\rm =\dfrac{2n^2+5n+28}{\left(n+4\right)\left(n-1\right)}[/tex]
Thus, the provided expression is equivalent to the first expression in the option, choice (A) is correct.
Learn more about the expression here:
brainly.com/question/14083225
#SPJ2
Lindsay earns $10 per hour plus $3 for each subscription she sells. What will Lindsay earn
for selling 12 subscriptions in an 8-hour day?
Solve the System of Equations using Substitution or Elimination. State your final
answer as an ordered pair (x,y) *
-3x + 10y = -15
5x - 7y = -4
Answer:
(- 5, - 3 )
Step-by-step explanation:
Given the 2 equations
- 3x + 10y = - 15 → (1)
5x - 7y = - 4 → (2)
Multiplying (1) by 5 and (2) by 3 and adding the result, eliminates the x- term.
- 15x + 50y = - 75 → (3)
15x - 21y = - 12 → (4)
Add (3) and (4) term by term to eliminate x, that is
29y = - 87 ( divide both sides by 29 )
y = - 3
Substitute y = - 3 into either of the 2 equations and solve for x
Substituting into (1)
- 3x + 10(- 3) = - 15
- 3x - 30 = - 15 ( add 30 to both sides )
- 3x = 15 ( divide both sides by - 3 )
x = - 5
solution is (- 5, - 3 )
A square photograph has a side length of In centimeters. What is the area of the photograph?
The data manager for a state political party gathered data to determine how many citizens would support the party's senate candidate. He polled citizens in 30 similarly sized senate districts and found a sample mean of 70,438 citizens. Statewide data shows that the population standard deviation is 645.3. What is the approximate 90% confidence interval for this situation?
Answer:
The approximate 90% confidence interval is;
70,244 to 70,732
Step-by-step explanation:
Here, we want to calculate the approximate 90% C.I for the situation
Mathematically;
CI = mean ± (z * SD)/√n
From the question;
mean = 70,438
SD = 645.3
n = 30
we can get z from the CI table
90% CI is same as; 1.645 z-score
So , substituting these values;
CI = 70,438 ± ( 1.645 * 645.3)/√30
CI = 70,438 ± 194
So the CI = 70,438 -194 to 70,438 + 194
= 70,244 to 70,732
Answer:
B. 70,244 and 70,632
Please give me brainliest, I really need it.
If anyone could help me I would really appreciate it. Thank You
Answer:
with what?
Step-by-step explanation:
Can someone help me please
If the given figure is rotated 180° around the origin? What are the new coordinates of point Z?
Answer:
(a,b) to (-a,-b)
Step-by-step explanation:
You can think of this as folding the paper horizontly and vertically, and see where the new point lies. You see that the x coordinate changes its sign when the paper folds vertically, and the y coordinate changes its sign when folded horizontally.
But in general, if you have point (a,b) and if you rotate it 180 degrees, you just switch the signs, and you will get (-a,-b).
Ex. (-6,5) rotates 180 degrees and becomes (6,-5)
Answer:
(6,-5)
Step-by-step explanation:
Help please! im struggling with all of these
Answer:
The first one is 6√10
The second one is −48√3
The last one is 28√2
Step-by-step explanation:
What is the measure of x? *
X
80°
180 degrees
100 degrees
80 degrees
360 degrees
Answer: 80 degrees
Step-by-step explanation:
Answer:
80 degrees!
Step-by-step explanation:
There's this weird phenomenon with parallel lines, that if you trace a line over it, you would get the same angle on the opposite side of the line.
what is the percent of 65% of 186
Answer:
im pretty sure 120.9
Step-by-step explanation:
Answer:
120.9
Step-by-step explanation:
0.65 times 186 is 120.9