solve for x
explain how to do it pls
Evaluate the expression below
if a = -8, b = 17, and c = 21
a2 –(b+c)
Answer:
-54
Step-by-step explanation:
first fill in the numbers
next do the parentheses 17 + 21=38
then find -8×2 which equals -16
then subtract -16 from 38 and get -54
The value of the expression a² - (b + c) at a = -8, b = 17, and c = 21 will be 26.
What is the value of the expression?When the relevant factors and natural laws of a mathematical model are given values, the outcome of the calculation it describes is the expression's outcome.
Making anything easier to accomplish or comprehend, as well as making it less difficult, is the definition of simplification.
The expression is given below.
⇒ a² - (b + c)
The value of the expression at a = -8, b = 17, and c = 21 will be
⇒ a² - (b + c)
⇒ (-8)² - (17 + 21)
⇒ 64 - 38
⇒ 26
The value of the expression a² - (b + c) at a = -8, b = 17, and c = 21 will be 26.
More about the value of expression link is given below.
https://brainly.com/question/23671908
#SPJ2
The ratio of boys to girls at the park was 9 to 6. If there were 45 boys, how many girls were there?
Answer:
30 girls
Step-by-step explanation:
This is because the boys and girls were 9 to 6 if we multiply 5 to the 9 we get 45. so when we multiply 6 by 5 we get 30. :)
Answer:
9/6=45/x
3/2=45/x
3/2×45=1/x
3/90=1/x
1/30=1/x
reciprocal
x=30
Step-by-step explanation:
need thanks and make me brainiest if it helps you
PLEASE HELP FAST ITS MULTIPLE CHOICE!
Joey bought 8 books. Some books cost $12 each the rest cost $18 each he spent a total of 108 which of the following system of linear equation could represent the given situation?
Answer: It's A
Step-by-step explanation: X + Y is the total books, which should equal 8. Some books treat them as X, while the rest treat them as Y. You end up with 12x+18y=108.
28 points and brainliest hurry!!
A ABC is translated up 5 units to form the image AA'B'C'.
What are the coordinates of the vertices of AA'B'C' ?
Enter your answer by filling in the boxes.
A= -2,4
B= -2,4
C= 2,7
Helppppppppppppppppppp
Answer:1
Step-by-step explanation:
The line crosses in the y intercept at the 1 place
10ⁿ = 1
a) n=1
b) n=0
c) n=2
Step-by-step explanation:
n = 0
because,
p^0 = 1
10000000^0 = 1
2. Determine which of the
following points is furthest from the
origin: (0,3), (1,2), (3, -42(6.0), (1, 2)
Malik’s weekly pay varies directly to the number of hours he works as a lifeguard. His weekly pay is $229.50 when he works 17 hours. What is his weekly salary when he works 23 hours? Note: Write a direct variation equation representing this situation and use this equation to answer the question.
anyone know how to do tables?
write the ratio as a fraction in simplest form, with whole numbers in the numerator and denominator.
3 mi to 2.5 mi
The area of a rectangle, A = 1•w is represented by the expression 24xBy15. Which could be the dimensions of the
rectangle?
O 2xy and 12xy?
O 6x?y and 4x® y5
O 10x®y 15 and 14x®y 15
O 9x4y11 and 12x2y4
Answer:
The length and width of the rectangle are: [tex]\mathbf{2x^5y^8\:and\: 12xy^7}[/tex]
Option A is correct.
Step-by-step explanation:
We are given: [tex]Area\:of\:rectangle=Length\times Width[/tex]
if [tex]Area = 24x^6y^{15}[/tex]we need to find the length and width of rectangle from options given.
Looking at the options, Option B,C and D are incorrect because multiplying the given lengths and widths, the area is not equal to [tex]24x^6y^{15}[/tex]
Only Option A gives us the result i,e
[tex]Area=2x^5y^8\times 12xy^7\\Area=24x^6y^{15}[/tex]
So, the length and width of the rectangle are: [tex]\mathbf{2x^5y^8\:and\: 12xy^7}[/tex]
Option A is correct.
Janna and travon are creating posters for the school play.
Answer:jenny and travon play at school and make 12 dollors
Helpppp Number 9 pleaseeeee
help me with this pls and thanks
Answer:
8/9
Step-by-step explanation:
start by converting it.
4/3* 2/3
then multiply.
8/9
hope this helped !!
Helpp please!! Will give brainliest and 5 stars!!
Find the distance between
(8,7) and (1,-2)
Answer:
√130 units
Step-by-step explanation:
(8,7) ; (1, -2)
Distance = [tex]\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}[/tex]
[tex]= \sqrt{(1-8)^{2}+(-2-7)^{2}}\\\\= \sqrt{(-7)^{2}+(-9)^{2}}\\\\= \sqrt{49 + 81}\\\\= \sqrt{130}[/tex]
write y = -3x + 1 on a graph
Answer:
ok sure thing i uploaded a picture to help you!
Step-by-step explanation:
f(x) =
[tex] \sqrt{ {x}^{2} } - 9[/tex]
What's the ordered pair for R,S,T,U,V,W. Help plz
Answer:
R (1.5, 2.5)
S (2, 0.5)
T (0, 1.5)
U (2.5, 1.5)
V (1, 1)
W (0.5 2)
Step-by-step explanation:
The numbers in between are most like 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4
Answer two questions about Equations A and B:
A. 5x – 2 + x= x- 4
B.5x+ x= x- 4
1) How can we get Equation B from Equation A?
Choose 1 answer:
A)Add/subtract a quantity to/from only one side
B)Add/subtract the same quantity to/from both sides
C)Rewrite one side (or both) using the distributive property
D)Rewrite one side (or both) by combining like terms
2)Based on the previous answer are the equations equivalent? In other words, do they have the same solution
A)yes
B)no
Answer:
A and D
Are the more likely options to apply
Which ordered pair (p, n) is the solution to the given system of linear equations?
{5p - 3r = 1
{8p + 6r = 4
• (-1, -2)
O (-2, -1)
O ( 2/9 , 1/3 )
O ( 1/3 , 2/9 )
Answer:
the second one(-2.-1
Step-by-step explanation:
WRITE AN EQUATION 331 students went on a field trip. Six buses were filled and 7 students traveled in cars. How many students were in each bus?
Answer:
probably 331-7=6x
Step-by-step explanation:
cause you take away 7 and have 324, then divide by 6 and end up with 54 soooo
please help me on this
Answer:
32.64 < 3.264
7.489 < 7.498
0.350 > 0.305
9.164 < 9.614
Step-by-step explanation:
The first digit to the right of decimal point is in the tenths place. The second digit to the right of decimal point is in the hundredths place. The third digit to the right of decimal point is in the thousandths place. The fourth digit to the right of decimal point is in the ten thousandths place and so on.
question:: 81% of 49 is what?
Answer:
39.69
Step-by-step explanation:
Make the following equation: 81/100 = x/49. Then, multiple 81 and x by 49. Divide the answer, 3969, by 100, which gives you the answer.
please prove these
Answer:
ℎ ℎ ℎ ??
Step-by-step explanation:
what is the factor of: 3х^2+ 10x +7
Answer:
(3x+7)(x+1)
-have a wonderful day-
(～￣▽￣)～
X+ y = 4
2y-4x=2..............
Answer:
x=1
y=3
Step-by-step explanation:
x+y=4
2y-4x=2
x=4-y
2y-4(4-y)=2
2y-16+4y=2
6y=18
y=3
x=4-3
x =1
5) James wants to visit his sister Sarah. He
knows C Street is a shorter distance than taking
A Street and B Street. How many miles is C
Street? (GE: 2nd)
Don has two jobs. For Job 1, he earns $7.55 an hour. For Job 2, he earns $8.45 an hour. Last week he worked at the first job for 10 hours and at the second job for 15 hours. What were his average earnings per hour? a $8.15 b $8.13 c $8.00 d $8.09
Answer:
D. $8.09
Step-by-step explanation:
Get the total amount for Job 1 & Job 2 he worked for x amount of hours. The x amount of hours and the amount of earnings he get per hour is given to us:
Job 1: $7.55 x 10 = $75.50
Job 2: $8.45 x 15 = $126.75
Add two total costs from work:
$75.50 + $126.75 = $202.25
You add 10 + 15 to get 25 and we need this number for the average as he worked 25 hours in total:
$202.25 / 25 = $8.09 per hour
Don's average earnings per hour is $8.09 per hour.