4
Step-by-step explanation:
(n + 5)² for n = -7
= (-7 + 5)²
= (-2)²
= 4
find the value of x.
Answer:
Step-by-step explanation:
RQ=QS=SR
5x =3x + 10 =6x-5
5x =3x +10
5x-3x =10
2x =10
X=5
Find three consecutive integers whose sum is -30?
Answer:
-10 + -10 + -10 = -30
Step-by-step explanation:
please give brain award
Y varies directly with x. When y is 105, x is 7. What is k
Answer:
Given:
y
varies inversely with
x
.
So, we can write it as:
y
∝
1
x
I NEED HELP ASAP PLEASE NO LINKS!!!
Answer:
The answer to your question is 10/9
please answer this question correctly
Answer:
6. (IV) Square pyramid
(b). (iii) 90°
(c). (iii) 7 students
(d). (ii) 25
Step-by-step explanation:
I can't see the others anymore i'ts okay i hope this will help you thanks brainless please I just needed thanks again.
5. Rewrite the quadratic funtion from standard form to vertex form.
Ax) = 2x2 + 8x + 70
Answer:
[tex]y = 2 {(x + 2)}^{2} + 62[/tex]
Step-by-step explanation:
vertex form is
[tex]y = a {(x - h)}^{2} + k \\ where \: (h. \: k) \: is \: the \: vertex[/tex]
our original equation
[tex]2 {x}^{2} + 8x + 70[/tex]
first we will find the x value using the formula
[tex]x = - \frac{b}{2a} \\ - \frac{8}{2(2)} = - \frac{8}{4} = - 2 \\ x = - 2 = h[/tex]
plug the value of x back into the original equation to solve for y
[tex]y = 2 {x}^{2} + 8x + 70 \\ y = 2 ({ - 2}^{2} ) + 8( - 2) + 70 \\ y = 2(4) - 16 + 70 \\ y = 8 - 16 + 70 \\ y = 78 - 16 \\ y = 62 = k[/tex]
substitute this back into our vertex form and not forgetting the coefficient a = 2
[tex]y = 2 {(x - ( -2))}^{2} + 62 \\ y = 2 {(x + 2)}^{2} + 62[/tex]
I NEED THIS ASAP,Which equation represents a line with a slope of 0 (zero) that goes through the point (-6, -1)?
A. y = -6
B. y = -1
C. x = -6
D. x = -1
Answer:
c/3 and if multiple c/3 and b/8
Step-by-step explanation:
PLS HELPPPPP Which expression is equivalent to 4−a−a−a?
Answer: " 4 − 3a " .
________
Step-by-step explanation:
" 4 − a − a − a " ;
= 4 − 1a − 1a − 1a " ;
= ? " ;
________
Combine the "like terms" :
________
→ " − 1a − 1a − 1a " ;
= (− 1a − 1a) − 1a ;
= ( − 2a) − 1a ;
= − 3a ;
________
Now, bring down the "4" ;
and rewrite the expression:
________
→ " 4 − 3a " ;
which cannot be simplified further.
________
The answer is: " 4 − 3a " .
________
Hope this is helpful!
Best wishes to you!
________
someone help me im trying not to fail this year-
Answer:
x-y=-3
Step-by-step explanation:
Solve for the value of y.
Answer:
y = 4(degrees)
Step-by-step explanation:
90-60 = 30
30 = 8y-2
32 = 8y
4 = y
lets check
32-2 = 30+60 = 90
correct :D
please help me with 5-6
Answer:
x=10, x=6
Step-by-step explanation:
5
4x+3+64+73=180 [ Sum of angles of a triangle]
4x=180-140
x=40/4
x=10
6
25+140+2x+3=180 [ Sum of angles of a triangle]
2x=180-168
x=12/2
x=6
On a shopping trip, Gina buys two books priced $4.99 and $12.99. She also buys 2 notebooks, 2 packs of pencils, and 3 composition books. The books are on sale for 10% off the list price and school supplies are 15% off. The store charges 6.5% sales tax.
Item Cost ($)
Notebooks 2.88
Composition Books 0.79
Pencil Packs 1.89
How much total will Gina spend on her shopping trip? Round to the nearest cent.
Answer:
$28.00
Step-by-step explanation:
$4.99 + $12.99 = $17.98 with 10% of discount =$16.18
$2.88 (2) + $0.79 (3) + 1.89 (2) = $11.91 with 15% of discount = $10.12
$16.18 + $10.12 = $26.30 with 6.5% sales tax = $28.00
A shipping container will be used to transport several 150-kilogram crates across the
country by rail. The greatest weight that can be loaded into the container is 28000
kilograms. Other shipments weighing 10300 kilograms have already been loaded into
the container. Write and solve an inequality which can be used to determine x, the
number of 150-kilogram crates that can be loaded into the shipping container.
A shipping container will be used to transport several 150-kilogram crates across the country by rail. The greatest weight that can be loaded into the container is 24000 kilograms. Other shipments weighing 6400 kilograms have already been loaded into the container.
Answer:
[tex]x<=118[/tex]
Step-by-step explanation:
We already have [tex]10300[/tex] kilograms, we will add [tex]x*150[/tex] kilograms, and we need it to be less than or equal to [tex]28000[/tex].
So, the inequality is [tex]150x+10300<=28000[/tex].
We can subtract [tex]10300[/tex] from both sides to get [tex]150x<=17700[/tex].
We then lastly divide by [tex]150[/tex] on both sides to get [tex]x<=118[/tex].
So, the answer is [tex]\boxed{x<=118}[/tex] and we're done!
PLEASE HELP!! THIS COUNTS FOR 18 PERCENT OF MY GRADE!!!!
Answer:
question is blurry plz ss it carefully
If I use 1 pound of sausage for 3/4 pound of cheese how much sausage do I need if I use 1 pound of cheese
Answer:
1.33Step-by-step explanation:
3/4 = 0.75 pound
1 : 0.75 = x : 1
x = 1 * 1 : 0.75
x = 1.33
--------------check
1 : 0.75 = 1.33 : 1
1.33 = 1.33
the answer is good
Answer:
[tex]1 \frac{1}{3}lb \: sausage[/tex]
Step-by-step explanation:
What Iike to do is make it like a ratio.
So you have one pound of sausage per 3/4lb of cheese
[tex] \frac{1lb \: sausage}{( \frac{3}{4} )lb \: cheese} = \frac{sausage}{1lb \: cheese} [/tex]
Then you just make that sausage the subject of the equation by multiplying 1lb cheese to both sides of the equation, and you have your answer.
[tex]1lb \: cheese \times \frac{1lb \: sausage}{0.75 \: lb \: cheese} = sausage[/tex]
Zack and his older brother Luke have ages that are consecutive odd integers. If Zacks age is x, Luke's age can be represented as
Answer:
x+2
Step-by-step explanation:
This is because they are both odd numbers, and rather than Luke being the younger brother, ad having to subtract, he is the older brother so you have to add.
Hope this helps!
How many lead cubes of side 3 cm could be made from a lead cube of side 27 cm?
9 lead cubes of side 3 cm could be made from a lead cube of side 27 cm.
This is because,
27/3= 9
If Olivia has 68,79, and 74 for his 3 tests, what must he get on his 4th test in order to have an 80 average?
FIND THE MEAN:
GRADES GIVEN
81, 70, 65, 89,70
Answer:
x-bar = 75
Step-by-step explanation:
81 + 70+ 65 + 89 + 70 =3 375
375/5 = 75
4.
Solve the following equation for x. Represent
your answer in two forms, (1) with radicals and
(2) with rational exponents: x^4 = y^7
Answer:
7
Step-by-step explanation:
7 =2 hx x e
please solve this problem
please give me the correct answer
I hope this solution works
find area and perimeter
Answer:
Area = 18×(6+9) + (11×9)
= (18×15) + 99
= 270 + 99
= 369m²
Perimeter = 2(18+11) + 2(15)
= 2(29) + 30
= 58 + 30
= 88m
need an answer asap!!
Answer:
C SAS
Step-by-step explanation:
I am to lazy to write the explanation but it's C if I am right if not i need hdlp
Answer:
its C
Step-by-step explanation:
I don't know how to explain it but i took a test and it had this answer
.
Aiden buys ice cream and apples at the store.
He pays a total of $15.05.
• He pays a total of $3.80 for the ice cream.
• He buys 3 bags of apples that each cost the same amount.
Write and solve an equation which can be used to determine x, how much each bag
of apples costs.
Answer:
Equation: y = 3x + 3.80
Cost of each bag: $3.75
Step-by-step explanation:
y = 3x + b
y = $15.05
x = cost of each bag
b = $3.80
3 = # of bags
15.05 = 3x + 3.80
11.25 = 3x
3.75 = x
The equation to determine x is y = 3x + 3.8
and cost of each apple bag is $3.75.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions by connecting them with the equal sign = .
Now it is given that,
Total amount paid by Aiden = $15.05
Total amount paid for ice cream = $3.80
Number of bags of apple = 3
So if x is the amount of each apple bag and y is the total amount paid by Aiden,
So,Cost of apple bags = 3x
And total amount = 3x + 3.8
or y = 3x + 3.8
this is the equation to determine x.
Now since, total amount paid is $15.05
⇒ 15.05 = 3x + 3.8
or,3x = 15.05 - 3.8
or 3x = 11.25
⇒ x = 11.25/3
⇒ x = $3.75
Thus,the equation to determine x is y = 3x + 3.8
and cost of each apple bag is $3.75.
To learn more about equation:
https://brainly.com/question/13482978
#SPJ2
Explain in your own words the meaning of equivalent
ratios.
Answer:Equivalent ratios are ratios that make the same comparison of numbers. Two ratios are equivalent if one can be expressed as a multiple of the other.
Answer:
ratios that make the same comparison of numbers
Step-by-step explanation:
i hope thats good for u
2. Find the values of x and y. Classify the 135° Angle
Answer:
x = 45 y = 90
A boy leaves home at 9:15, and arrives at school at 10:05. If he travels non stop at an average speed of 6 kmh, what is the distance, in km, if his home from school?
Answer:
the internet is your answer
this diagram models three friends who are sharing two turkey sandwiches equally
Step-by-step explanation:
.......................
Answer:
Where's the diagram?
Step-by-step explanation:
I NEED THE RIGHT ANSWER ASAP NO LINKS!!!
Answer:
20
Step-by-step explanation:
coefficient is a numerical or constant quantity placed before and multiplying the variable in an algebraic expression (e.g. 4 in 4x y).
To miss a particular shade of pink paint white paint and red paint are mixed in the ratio 4:3 if 12 gallons of red paint are mixed with some white paint to make this same shade of pink how many total gallons of pink result
