5x^2 - x + 9 when x = -5
Answer:
139
Step-by-step explanation:
If x=-5
then
5*-5^2-(-5)+9
5*25+5+9
139
Answer: 139
Concept:
Here, we need to understand the idea of evaluation.
When encountering questions that gave you an expression with variables, then stated: "If x = a, y = b, z = c" (a, b, c are all constants), this means you should substitute the value given for each variable back to the expression.
Solve:
Given information
5x² - x + 9
x = -5
Substitute value into the expression
=5(-5)² - (-5) + 9
Simplify exponents
=5 (25) + 5 + 9
Simplify by multiplication
=125 + 5 +9
Simplify by addition
=[tex]\boxed {139}[/tex]
Hope this helps!! :)
Please let me know if you have any questions
Plz help this is important
Answer:
(0,-5)
Step-by-step explanation:
To find midpoint the formula is
([tex]\frac{x1+x2}{2}[/tex] , [tex]\frac{y1+y2}{2}[/tex])
So plug in the numbers
([tex]\frac{2+(-2)}{2}[/tex], [tex]\frac{-1+(-9)}{2}[/tex]) = ( [tex]\frac{0}{2}[/tex] , [tex]\frac{-10}{2}[/tex])
Simplify it and it equals (0,-5)
Prove that the bisector of the vertical angle of isosceles triangle is the perpendicular bisector of the base
Answer:
We will take two angles and name them 'x'
And their sum must equal 180
So,
x + x = 180
2x = 180
x = 180/90
x = 90
Hence, it is proved that the bisector of the vertical angle of isosceles triangle is the perpendicular bisector of the base.
Simplify each expression
What is the equation of the line that passes through the point (4,-8)(4,−8) and has a slope of -1/2
9514 1404 393
Answer:
y +8 = -1/2(x -4)
Step-by-step explanation:
The point-slope form of the equation of a line is ...
y -k = m(x -h) . . . . . . . line with slope m through point (h, k)
Your line has a slope of -1/2 and goes through point (4, -8). Its equation is ...
y +8 = -1/2(x -4)
_____
In slope-intercept form, this is ...
y = -1/2x -6
In standard form, it is ...
x +2y = -12
Which statement is true about the diagram?
A line has points A, K, B, T. The distance from A to B is 10, the distance from K to B is 5, and the distance from B to T is 4.
K is the midpoint of AB.
B is the midpoint of KT.
AK = BT
AB = KT
K is the midpoint of AB, which is the correct answer that would be option (A).
What is Midpoint?A midpoint is defined as in the middle of the line connecting two points a position known as a midpoint. A location in the middle of a line connecting the two points that are equally far from both points is the midpoint.
What is a Line Segment?A line segment is defined as a measured path between two places. Line segments can make up any polygon's sides because they have a set length.
The figure given shows a line segment AT, where the length of line segment AT refers to the distance between its endpoints, A and T.
Here AB = 10, KB = 5, and BT = 4.
Since AB = AK + KB,
We have that 10 = AK+5,
And AK= 10 - 5 = 5.
This means that AK = KB = 5 and K is the midpoint of AB
Therefore, K is the midpoint of AB, which is the correct answer that would be an option (A).
Learn more about the line segment here:
brainly.com/question/25727583
#SPJ2
Answer:
a
Step-by-step explanation:
What are the two conditionals that form the statement below? Two numbers are reciprocals if and only if the product is one
express tan J as a fraction in simplest terms
Answer:
tan j = 15/9
Step-by-step explanation:
tan(theta) is equal to perpendicular by base
pls answer my question
Answer:
a=1,2,4,5,6,7
b=1,7
c=2,5
d=4,6
HCF of 32,48,64 is 16
I need some help solving this.
6÷2(1+2)
Answer:
it is 1
Step-by-step explanation:
brainliest?
Answer:
9
Step-by-step explanation:
According to the BODMAS
Bracket first, division second, multiplication third
Simplify 8(3 - 2x).
16x - 24
24x - 16
24 - 16x
24 - 16x
Step-by-step explanation:
8(3-2x)
=24 - 16x
Answer:
The last option (24 - 16x)
Step-by-step explanation:
You must FOIL the equation by multiplying every expression within the parentheses by 8, the number outside the parentheses.
[tex]8\times3=24\\8\times-2x=-16x\\24-16x[/tex]
Terry has 14 coins. She has some quarters, 5 nickels and one dime more than she has nickels. How many of
each coin does she have? How much money does she have all together?
Answer:
1.60 ............................
Multiply (x + 1)(x + 3)
Answer:
x² + 4x + 3
Step-by-step explanation:
(x + 1)(x + 3)
Each term in the second factor is multiplied by each term in the first factor, that is
x(x + 3) + 1 (x + 3) ← distribute parenthesis
= x² + 3x + x + 3 ← collect like terms
= x² + 4x + 3
Answer:
it's the answer ...
hope your day will be happy
and the last add 3x+x = 4x
urgent answer needed pls
Answer:
pi*z^2*a or "pizza"
Step-by-step explanation:
The dimensions given describe a cylinder, for which the basic volume formula would be base x height.
The base would be a circle, with the radius z as given while the height is a.
The formula for the area of a circle is pi * r^2, and our radius is z, so the area of a circle with radius z is pi * z^2.
Now, all we need to do is multiply by the height, a. This gives us a volume of pi* z^2 *a
Side note:
z^2 can be written as zz, so the actual area of the pizza could be represented by "pizza".
(√17+3√48)-(√17-3√48)
Answer:
Step-by-step explanation:
[tex](\sqrt{17}+3\sqrt{48})-(\sqrt{17}-3\sqrt{48}) =\sqrt{17}+3\sqrt{48}-\sqrt{17}+3\sqrt{48}\\[/tex]
[tex]= \sqrt{17}-\sqrt{17}+3\sqrt{48}+3\sqrt{48}\\\\= 0 + (3+3)\sqrt{48}\\\\=6\sqrt{48}\\[/tex]
Now factorize 48
[tex]= 6\sqrt{2*2*2*2*3}\\\\=6*2*2\sqrt{3}\\\\=24\sqrt{3}[/tex]
A line contains L(-4, -4) and M(2,3). Line q is in the same coordinate plane but does not intersect LM. Line q contains point N.
A general line equation can be written as:
[tex]y = a*x + b[/tex]
Where a is the slope and b is the y-intercept.
Here we will find that for N(x₁, y₁), the line q is:
[tex]y = \frac{7}{6}*x + (y_1 - \frac{7}{6}*x_1)[/tex]
If we know that the line passes through the points (x₁, y₁) and (x₂, y₂), then we can write the slope as:
[tex]a = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
In this case, we know that the line passes through (-4, -4) and (2, 3), then the slope is:
[tex]a = \frac{3 - (-4)}{2 - (-4)} = \frac{7}{6}[/tex]
So the line is something like:
[tex]y = \frac{7}{6} *x + b[/tex]
To find the value of b, we can use one of the two points, for example (2, 3) means that when x = 2, y must be equal to 3, then we can replace these two in the line equation to get:
[tex]3 = \frac{7}{6}*2 + b\\\\3 = \frac{7}{3} + b\\\\3 - \frac{7}{3} = b = 2/3[/tex]
Then the line LM is;
[tex]y = \frac{7}{6}*x + \frac{2}{3}[/tex]
Now we know that line q is in the same coordinate plane, but does not intersect LM. This means that these lines are parallel, and remember that two parallel lines have the same slope, then the slope of line q is also 7/6.
Now we know that line q passes through point N, but we do not know the coordinates of point N, then let's use general coordinates as N(x₁, y₁)
Then line q will be:
[tex]y = \frac{7}{6}*x + c[/tex]
To find the value of c we use the point N.
[tex]y_1 = \frac{7}{6}*x_1 + c\\\\y_1 - \frac{7}{6}*x_1 = c[/tex]
Then the equation of line q is:
[tex]y = \frac{7}{6}*x + (y_1 - \frac{7}{6}*x_1)[/tex]
If you want to learn more, you can read:
https://brainly.com/question/24433190
Sami orders cowboy hats online for a party. They cost $11.95 each with a shipping fee of $7.95.
Sami recently paid $223.05 for some cowboy hats.
Write an equation that to find the number of cowboy hats Sami ordered. Then find the number of
cowboy hats she ordered,
Answer:
223.05/x(11.95+7.95) 11.21.
Step-by-step explanation:
If each hat costs 11.95 plus a shipping fee of 7.95, you must add those numbers together. This makes the variable that will help indicate the number of hats ordered. Then you divide 223.05 by 19.9 (the total cost per hat) and you'll get your answer of 11.21 rounded.
Find the Mean Median, Mode, and Range of the following numbers. 7, 10, 10 14, 29 Mean _______ Mode________ Median______ Range_______
Mean is the average do 7+10+10+14+29 /5 = 14
median is the middle number so 10
mode is the most frequent number so 10
range is the largest number minus the smallest so 29-7 =22
Answer:
Mean ___14____ Mode__10______ Median___10___ Range__22_____
Step-by-step explanation:
7, 10, 10, 14, 29
The mean is the numbers added and then divided by the number of terms
mean: ( 7+ 10+ 10+ 14+ 29)/5 =70/5 = 14
Median is the middle number when they are arranged from smallest to largest
10 is the middle number
Mode is the number that occurs most often
10 is the mode
Range is the largest number minus the smallest number
29 -7 =22
A) 10/10
B) 5/5
C) 1/1
D) 2/2
E) 8/8
Answer:
B) 5/5
Step-by-step explanation:
5/10 ÷x = 1/2
Divide the top and bottom by 5/5
5/10 ÷ 5/5 = =1/2
Answer:
D 2/2
Step-by-step explanation:
If f(x) = 9^x , them prove that : f(m+n+p) = f(m) × f(n) × f(p) .
Answer:
f(m+n+p) = 9^(m+n+p)
while f(m) × f(n) × f(p) = 9^m+9^n+9^p = 9^(m+n+p)
so the second property explains why it's a + instead of ×
PLease help its line segments
Answer:
48
Step-by-step explanation:
FG:24
then
GH:also 24
24+24=48
????? what is the value of c?
Answer:
X=64°
Step-by-step explanation:
Solution,
x+54°=118° because the sum of two interior angles is equal to the opposite non adjacent exterior angle.
x+54°-54°=118°-54°
x=64°
Answer:
64 degrees
The Process:
54 is already a number that's not going to change, so that's fine. 118 is an outside angle, and a flat line is 180 degrees, so to find the inside angle, you have to do 180 - 118. Once again, there are 180 degrees in a triangle to you need to add 180 - ((180 - 118) +54) and you have the value of x.
Solve the compound inequality graph the solution -2 is less than or equal to 2x - 4 is less than 4
1,4
pls give me brainliest thanks and 5 start have nice day I know this is correct.
Answer:
-2 ≤ 2x-4 < 4
Which statement is true about the given information?
A line has points B, C, D, and E. All points are equal distances from each other.
BD = One-halfBC
BC = One-halfBE
BD ≅ CE
BC ≅ BD
Mark this and return
Answer:
I think the answer is BD ≅ CE
can someone please answer this for me -11p + 11p
Answer:
ooouuhhggg
Step-by-step explanation:
iiiiijhhhjjjhhjjjnnnnnnjjj
Answer:
0
Step-by-step explanation:
-11p + 11p
=> 0
Need help with 6 and 7
Answer:
part 7 = 15cm
Step-by-step explanation:
[tex]x {}^{2} = (12) {}^{2} + (9) {}^{2} \\ x {}^{2} = 144 + 81 \\ x {}^{2} = 225 \\ x = \sqrt{225} = 15[/tex]
The average volleyball player is 74 inches tall. What is the average height in meters?
Answer:
1.88 m
Step-by-step explanation:
74 ÷ 39.37 = 1.88m
1 meter = 39.37 inches
if the area of a right angle triangle with base 3 cm is 6cm find the height
Answer:
A=1/2 Bh
6cm^2=1/2.3cm.h
12cm^2=3cmh
H=4cm
plssss help meeeee!!!!!!!!!!!!!!!!!!!
Answer:
b = -30
Step-by-step explanation:
-b/5 - 27 = -21
~Add 27 to both sides
-1/5b = 6
~Multiply -5 to both sides
b = -30
Best of Luck!
7. Dean has a checking account at City Center Bank. During the month of April, he made deposits
totaling $2,458.52 and wrote checks otaling $789.23. He paid a maintenance fee of $25 and
earned $3.24 in interest. His balance at the end of the month was $4,492.76. What was the
balance at the beginning of April
Answer:
2848.47
Step-by-step explanation: