f(x)=15+x ; x=7 evaluating functions
Answer:
22
Step-by-step explanation:
[tex]f(x)15+x\\\\f(7)15+7\\\\\boxed{f(7)=22}[/tex]
Hope this helps.
Which point could represent 5/3 ?
Based on the number line provided for this exercise (see attachment), a point which could represent 5/3 is given by C.
What is a number line?A number line can be defined as a type of graph with a graduated straight line which contains both positive and negative numerical values that are placed at equal intervals along its length.
Based on the number line provided for this exercise (see attachment), a point which could represent 5/3 is given by C:
1 < C < 2
Read more on number line here: brainly.com/question/24644930
#SPJ1
-11=r+(-2) I need to solve this problem
Answer: -8=r
Step-by-step explanation:
Answer:
r= -9
Step-by-step explanation:
We are given the equation:
-11 = r+ (-2)
If we want to solve for r, we must isolate r on one side of the equation.
Let's simplify the right side. A + - can just be written as -
-11= r-2
2 is being subtracted from r. The inverse of subtraction is addition. Add 2 to both sides of the equation.
-11 + 2= r-2+2
-11+2=r
-9=r
r=-9
Let's check our solution. Plug -9 in for r and solve.
-11= -9 + (-2)
-11= -11
This checks out, so we know our solution is correct.
The solution to the equation -11=r+(-2) is r=-9
If a sample is selected from a population, the sample mean is essentially guaranteed to be different from the population mean. In general, the naturally occurring difference between a sample statistic and the corresponding population parameter is called ____.
Answer:
Sampling Error
Step-by-step explanation:
We are told that the phenomenon is the naturally occurring difference between a sample statistic and the corresponding population parameter.
Now, it's sampling error because sampling error is simply defined as a deviation or difference in a sampled value as against the true population value due to the fact the sample is not a true representative of the population.
This is also similar to the definition given in the question.
Thus, it's sampling error!
p=x2-y2÷x2+xy
p equals to x square minus y Square divided by x square + X Y
Answer:
x2-y2?x2+xy=x-y/x
Step-by-step explanation:
as we know , x2-y2=(x+y)(x-y)
and in case of the denominator take x as a common one then we will get
(x+y)(x-y)/x(x+y)
=x-y/x its the answer
thank u
write an expression
the quantity of 7+x, squared
Answer:
[tex]\huge \boxed{(x+7)^2 }[/tex]
Step-by-step explanation:
The quantity x + 7 is squared.
[tex](x+7)^2[/tex]
Expand the brackets and simplify the expression.
[tex](x+7)(x+7)[/tex]
[tex]x(x+7)+7(x+7)[/tex]
[tex]x^2 +7x+7x+49[/tex]
[tex]x^2 +14x+49[/tex]
We can leave the expression in factored form.
Answer:
( X+7 ) ^ 2
Step-by-step explanation:
=X ^ 2+ 2 x 7 x X + 7 ^ 2
= X^2 +14X +49
Find LCM of
[tex]p {}^{2} - pq \: and \: pq \: - q {}^{2}[/tex]
Answer: LCM = pq(p - q) = p²q - pq²
Step-by-step explanation:
p² - pq pq - q²
∧ ∧
p (p - q) q (p - q)
p² - pq: p · (p - q)
pq - q²: q · (p - q)
GCF: (p - q)
LCM: p · q · (p - q)
What is the measure of angle VYZ
Answer:
[tex] \boxed{\sf C. \ 161 ^{ \circ}} [/tex]
Step-by-step explanation:
Opposite angles are also congruent angles, meaning they are equal or have the same measurement.
[tex] \sf \implies \angle VYZ = \angle WYT \\ \\ \sf \implies(8x + 1) ^{ \circ} = (9x - 19)^{ \circ} \\ \\ \sf \implies 8x^{ \circ} + 1^{ \circ} = 9x^{ \circ} - 19^{ \circ} \\ \\ \sf \implies 8x^{ \circ} - 9x^{ \circ} + 1^{ \circ} = - 19^{ \circ} \\ \\ \sf \implies - x^{ \circ} = - 19^{ \circ} - 1^{ \circ} \\ \\ \sf \implies \cancel{ -} x^{ \circ} = \cancel{- }20^{ \circ} \\ \\ \sf \implies x^{ \circ} = 20^{ \circ} [/tex]
[tex] \therefore[/tex]
[tex] \sf \implies \angle VYZ =(8x + 1) ^{ \circ} \\ \\ \sf \implies \angle VYZ =(8 \times 20 + 1) ^{ \circ} \\ \\ \sf \implies \angle VYZ =( 160+ 1) ^{ \circ} \\ \\ \sf \implies \angle VYZ =161 ^{ \circ} [/tex]
Ella is going to drive from her house to City A without stopping. Ella's house is 100 miles from City A and after driving for 3 hours, she will be 25 miles away from City A. Write an equation for D, in terms of t, representing Ella's distance from City A tt hours after leaving her house.
Answer:
[tex]d = 100-25t[/tex]
Step-by-step explanation:
Let's use basic logic here.
If we are 100 miles away from a place, and we've got 25 miles to go, we've already travelled 75 miles.
Since we've travelled 75 miles in 3 hours, then we travel at a rate of [tex]75\div3=25[/tex] miles per hour.
The distance to City A will be represented as 100 - miles already travelled. We can find how many miles have been travelled by multiplying 25 by [tex]t[/tex], the amount of hours we've spent driving.
This creates the equation [tex]d = 100 - 25t[/tex]
Hope this helped!
One book has 84 pages. Another book has 210 pages. Which is the greatest common
factor of the number of pages in the two books?
Answer: 12 is the greatest common factor.
Step-by-step explanation:
Answer:
The answer is 14
Step-by-step explanation:
-21+7u=28 solve for u
Answer:
u = 7
Step-by-step explanation:
-21 + 7u = 28
add 28 to both sides
7u = 49
divide by 7
u = 7
Answer:U=7
Step-by-step explanation:
what is the greatest common fact of 9 and 22
Answer:
1
Step-by-step explanation:
the greatest common factor of 9 and 22 is 1.
Elena plans to ride her bicycle 5 miles to a park and then ride several times around a loop in a the park that is 3 miles long. Then she'll take the same way home. she wants to ride a total of 22 miles. The inequality 3t + 10 ≥ 22 models this situation, where t is the number of times Elena went around the loop. Solve the inequality. How many times does Elena need to go around the loop?
Answer:
Solution : 4 or more times
Step-by-step explanation:
As the inequality is given to us, it makes this a bit simpler.
3t + 10 ≥ 22 ( Subtract 10 on either side )
3t ≥ 12 ( Divide 3 on either side )
t ≥ 12 / 3 ≥ 4
And hence we have a solution of t ≥ 4. Elena will ride around the loop 4 or more times.
The given function k is a composition of two functions m
and n so that k(x) = (
mn)(x).
If n(x) = 4x - 7, m(x) must be equal to which
expression?
k(x) =
VAX-7
O z&x
2
Ο Ο Ο Ο
룺
Done
Helpppppo
Answer:2/4 √x (2 over 4 square root x)
Step-by-step explanation:
Answer:
Answer is D if your using edgenity.
Step-by-step explanation:
The answers are never mixed up, so it will always be the last one.
-x/3 >5 the sign is supposed to be greater than or equal to but I don’t have that option
Answer:
x ≤ -15
Step-by-step explanation:
-x / 3 ≥ 5
multiply by 3
-x ≥ 15
add x to both sides and subtract 15 from both sides
-15 ≥ x or x ≤ -15
The equation x2+y2−16x+6y+73=100 can be rewritten as [g(x)]2+(y+3)2=100.Write an expression for g(x).
Answer: g(x) = (x - 8)
Step-by-step explanation:
We start with the equation:
x^2 + y^2 - 16*x + 6*y + 73 = 100.
And we want to write this as:
g(x)^2 + (y + 3)^2 = 100.
So both equations are equal, then we can write this as:
x^2 + y^2 - 16*x + 6*y + 73 = g(x)^2 + (y + 3)^2
First we can expand the right side:
g(x)^2 + (y + 3)^2 = g(x)^2 + y^2 + 2*3*y + 9
Then we have:
x^2 + y^2 - 16*x + 6*y + 73 = g(x)^2 + y^2 + 6*y + 9
Now we can cancel the equal terms in each side, like y^2 and 6*y
x^2 - 16*x + 73 = g(x)^2 + 9
Now let's subtract 9 in each side:
x^2 - 16*x + 73 - 9 = g(x)^2
x^2 - 16*x + 64 = g(x)^2
Then we can assume that g(x) = (x - a)
then:
x^2 - 16*x + 64 = (x - a)^2 = x^2 - 2*a*x + a^2
-16*x + 64 = -2*a*x + a^2
now we must find the value of a, we have two equations:
-2*a = -16
a^2 = 64
and each equation yields to:
a = -16/-12 = 8.
a = √64 = 8
Then we have: g(x) = (x - 8)
Completing the squares, it is found that: [tex]g(x) = x - 8[/tex]
--------------------------------
The expression given is:
[tex]x^2 + y^2 - 16x + 6y + 73 = 100[/tex]
To complete the squares:
First, each first order term(-16 and 6) are divided by 2.Then, we write as the square of (x - 8) and (x + 3).Then, we have to find the squares on the other side of the equality.--------------------------------
Doing these steps:
[tex](x - 8)^2 + (y + 3)^2 = 100 - 73 + 8^2 + 3^2[/tex]
[tex](x - 8)^2 + (y + 3)^2 = 100 - 73 + 64 + 9[/tex]
[tex](x - 8)^2 + (y + 3)^2 = 100[/tex]
Which means that:
[tex]g(x) = x - 8[/tex]
A similar problem is given at https://brainly.com/question/16269892
Asphere has a diameter of 10 in. What is the volume of the sphere?
Answer:[tex]\frac{500}{3}[/tex]π [tex]in^{3}[/tex]
Step-by-step explanation: diameter=10 in
radius=[tex]\frac{diameter}{2}[/tex]=[tex]\frac{10}{2}[/tex]=5 in
volume=[tex]\frac{4}{3}[/tex][tex]r^{3}[/tex]
=[tex]\frac{4}{3} X 5^{3}[/tex] x π =[tex]\frac{500}{3}[/tex]π [tex]in^{3}[/tex]
3.26d+9.75d−2.65 help plzzzzzzz
Answer: Add 3.26 d and 9.75 d . 13.01 d − 2.65
Step-by-step explanation:
Answer:
13.01d-2.65
Step-by-step explanation:
Since you have to simplify it you have to get rid of them so just add 3.26d+9.75 and you get 13.01d and the minus 2.65
For what value or values of b is it true that |b| = -b
Answer:
b =0
Step-by-step explanation:
The only value where |b| = -b is when b=0
|0| = -0
0 = 0
Absolute value means non- negative
non-negative = negative
This is only true when we equal zero
Answer: b = 0 or anything negative (like b = -2)
So any value of b such that [tex]b \le 0[/tex]
==================================================
Explanation:
|b| is the distance from b on the number line to 0
The distance is never negative as negative distance does not make sense.
If b was some positive number, then |b| = b. For instance, |7| = 7. This shows 7 is seven units away from 0 on the number line.
----------
If b is negative or zero, then |b| = -b. Why? Because the result of |b| is the opposite of whatever negative b value you put in. For example, b = -2 leads to
|b| = |-2| = 2
while
-b = -(b) = -(-2) = 2
The two negatives cancel each other out to get a positive result.
This shows, |-2| = -(-2) = 2
Meaning that the location -2 is two units away from 0 on the number line.
If f(x) = 4x + 1, find f(3).
Replace x with 3. Then simplify
f(x) = 4x+1
f(3) = 4(3)+1
f(3) = 12+1
f(3) = 13
Answer:13
Step-by-step explanation:
You place 3 in place of x then multiply 4 and 3. You would get 12. Then you add 1. Which is 13.
Quick help please 10 points Multiply (-4)(-2)(-5) A -40 B -8 C 8 D 40
Answer:
A -40
Step-by-step explanation:
Answer:
the correct answer is D. 40
how do i know this is a rhombus
Answer: It's not a rhombus
It would be a rhombus if all four sides were the same length, but we don't have that. Side DE is longer than EF, because the opposite angles are larger. We have 75 > 72, so that's why DE > EF.
[tex]if \: y = x {e}^{ {x}^{2} } [/tex]
[tex]prove \: that \: \frac{ {d}^{2} y}{ {dx}^{2} } - 2x \frac{dy}{dx} - 4y = 0[/tex]
Good Luck for 50 points!
Answer:
Hope it helps!
please mark me brainliest
10. Working in the laboratory, a student finds the density of a piece of pure aluminum to be 2.850 g/cm3. The accepted value for the density of aluminum is 2.699 g/cm3. What is the student's percent error?
Answer: 5.6%
Step-by-step explanation:
Actual Value observed=2.850 g/cm3
Expected value=2.699 g/cm3
Error =Actual value - expected value
= 2.850-2.699
Error = 0.151
Error percent = [tex]\frac{Error}{Expected Value} 100%[/tex]%
=[tex]\frac{0.151}{2.699} *100\\0.056*100\\5.6[/tex]
The student's percent error is 5.6%
Simplify. Write your answer as an integer 27 2/3
Answer:
83/3 is ur answer .......
Which of the following best defines an angle?
O A corner of a figure like a triangle or square
O Any object that has a vertex,
OTwo rays that share a common endpoint
O The point where two line segments intersect
Answer:
Third option
Step-by-step explanation:
The first definition is not as broad as it should be, therefore, while an angle does meet that criteria, it's not a general definition, hence, it is incorrect. The second one is incorrect as well because a parabola has a vertex, and it is certainly not an angle. This definition is not specific enough, so it will be eliminated. The last one is again, too specific. The third one is the best answer because it is broad enough while still being specific.
7n + 8 + 1= -19
How do you solve this
Answer:
-4
Step-by-step explanation:
firt you add a minus one on both sides:
7n + 8 + 1 + (- 1) = -19 + (- 1) => 7n + 8 = -20
then add a minus eight on both sides:
7n + 8 + (- 8) = -20 + (- 8) => 7n = -28
finally in order to find (n) , devide both sides by seven:
7n ÷ 7 = (- 28) ÷ 7 => [ n = -4 ]
What's the expression with addition for -7-(-10)?
Answer:
3 is your answer
Step-by-step explanation:
-7-(-10)= 3
Answer:
[tex]\Huge \boxed{3}[/tex]
Step-by-step explanation:
-7-(-10)
Distribute the negative sign.
-7+10
Add the numbers.
3
In a jar there are red jelly beans and green jelly beans. In how many ways can you pick red jelly beans and the same number of green jelly beans?
Complete Question:
In a jar there are 19 red jelly beans and 10 green jelly beans. In how many ways can you pick 4 red jelly beans and the same number of green jelly beans?
Answer:
[tex]Both = 813960[/tex]
Step-by-step explanation:
Given
Red Jelly Beans = 19
Green = 10
Required
Select 4 out of 19 red jelly beans and 4 out of 10 green jelly beans
The keyword in the question is pick and this implies combination;
4 from 19 red jelly beans is calculated as follows
[tex]^nC_r = \frac{n!}{(n-r)!r!}[/tex]
Where n = 19 and r = 4
[tex]^{19}C_4 = \frac{19!}{(19-4)!4!}[/tex]
[tex]^{19}C_4 = \frac{19!}{15!4!}[/tex]
[tex]^{19}C_4 = \frac{19 * 18 * 17 * 16 * 15!}{15! * 4 * 3 * 2 * 1}[/tex]
[tex]^{19}C_4 = \frac{19 * 18 * 17 * 16}{4 * 3 * 2 * 1}[/tex]
[tex]^{19}C_4 = \frac{93024}{24}[/tex]
[tex]^{19}C_4 = 3876[/tex]
Similarly;
4 from 10 green jelly beans is calculated as follows
[tex]^{10}C_4 = \frac{10!}{(10-4)!4!}[/tex]
[tex]^{10}C_4 = \frac{10!}{6!4!}[/tex]
[tex]^{10}C_4 = \frac{10 * 9 * 8 * 7 * 6!}{6! * 4 * 3 * 2 * 1}[/tex]
[tex]^{10}C_4 = \frac{10 * 9 * 8 * 7 }{4 * 3 * 2 * 1}[/tex]
[tex]^{10}C_4 = \frac{5040}{24}[/tex]
[tex]^{10}C_4 = 210[/tex]
Ways of selecting both is calculated as follows
[tex]Both = 3876 * 210[/tex]
[tex]Both = 813960[/tex]
-12x - 60 = 144. Find the value of x.
Answer: x = - 17
Step-by-step explanation:
−12x−60=144
add 60 to both sides
-12x-60+60=144+60
simplify
-12x=204
divide both sides by -12
-12/-12 = 204/-12
simplify and ur Answer!! is x=-17