35
Step-by-step explanation:(-7) • (-5)
= 7 • 5
= 7 + 7 + 7 + 7 + 7
= 14 + 7 + 7 + 7
= 21 + 7 + 7
= 28 + 7
= 35
[tex] [/tex]
12 + 4[5% - 4(x + 5)] = 7 - 5x
Answer:
https://brainly.com/question/24983242 help
Step-by-step explanation:
12 + 4[5% - 4(x + 5)] = 7 - 5x
12 + 4•(5% - 4•(x + 5)) = 7 - 5•x
11x = -55
x = -5
Answer:
[tex]x = - \frac{34}{5} [/tex]
Step-by-step explanation:
12 + 4 (5% - 4(x + 5)) = 7 - 5x
12 + 4 (5/100 - 4x - 20) = 7 - 5x
12 + 4 (-399/20 - 4x) = 7 - 5x
12 - 399/5 - 16x = 7 - 5x
-399/5 - 16x = 7 - 5x
-16x + 5x = 7 + 339/5
-11x = 374/5
x = -34/5
HELP! Which expression is equivalent to a^b/c
Answer:
[tex]{ \rm{ {a}^{ \frac{b}{c} } \: \dashrightarrow \: ( {a}^{b}) {}^{ \frac{1}{c} } }} \\ \\ { \boxed{ \rm{ \boxed{} \: \: \sqrt[c]{ {a}^{b} } }}} \\ [/tex]
Víctor has 2 times as many trophies as Dean. Together ,víctor and Dean have 27 trophies does víctor have?
Answer:
Victor has 18 trophies
Step-by-step explanation:
Let's set up "let statements"
Let d = Dean's trophies
Since Victor has 2 times as many trophies as Dean, we can set up a let statement for Victor like this...
Let 2d = Victor's trophies
Now we can set up an equation! Since we know Dean and Victor have 27 trophies altogether...our equation has to involve addition...
2d + d = 27
Combine like terms...(2d and d)
3d = 27
Divide 3 on both sides to isolate the variable "d"
3d ÷ 3 = d
27 ÷ 3 = 9
So...
d = 9
That means Dean has 9 trophies. But we are not done yet because we need to figure out how many trophies Victor has. Since Victor has 2 times the number of trophies as Dean we can do...
2 · 9 = 18
Therefore, Victor has 18 trophies!
Hope this helps :)
please help!
The freezing point of seawater is -2 °C. The freezing
point of nitric acid is -42 °C. How much greater is the freezing
point of seawater than the freezing point of nitric acid?
Answer:
Express concentrations of solution components using mole fraction and molality
Describe the effect of solute concentration on various solution properties (vapor pressure, boiling point, freezing point, and osmotic pressure)
Perform calculations using the mathematical equations that describe these various colligative effects
Describe the process of distillation and its practical applications
Explain the process of osmosis and describe how it is applied industrially and in nature
Step-by-step explanation:
i helped
What is 11,885 as a percentage (round to 2 decimal places X.XX)?
Answer:
9.25
Step-by-step explanation:
Jaliyah wants to play a prank on her older sister at her birthday party. She has two bags of blue glitter that she's planning on filling a birthday hat with. To figure out how much glitter she needs to use, Jaliyah must first find the volume of the party hat. Find the volume of the party hat in cubic inches.
Height = 8.4 inches
Length = 5.3 inches
Answer:
44.52
Step-by-step explanation:
Volume = b * h
base times height
The height is 8.4 inches so 8.4 *
Length is the same as base so 5.4
8.4 * 5.4
Evaluate -c when c = 12
Answer: [tex]-12[/tex]
Step-by-step explanation:
[tex]-c=-(12)=\boxed{-12}[/tex]
Natalie uses a 15% off coupon when she buys a camera. The original price of the camera is $45.00. How much money does Natalie save by using the coupon
Answer:
6.75
Step-by-step explanation:
First, I just gave you the answer.
Second, just use it.
A loan is payed off in 15 years with a total of 250,000. It had 4% interest
Answer:
5.2%po joke Lang Hahahahahahah
Answer:
$137,339.88
Step-by-step explanation:
Use the compound interest formula and substitute the values given:
$250,000=P(1+0.0412)12(15)
Simplify using order of operations:
$250,000=P(301/300)180
Solve for P:
P=$250,000(301/300)180≈$137,339.88
A letter use to represent a number value is called
Answer:
A variable
Step-by-step explanation:
Helloooo could someone plz help me on this ?
Answer:
15 cubic units
Step-by-step explanation:
If you add up the blocks you get 15
Suppose a standard six-sided die is rolled and you receive $6.50 for every dot showing on the top of the die. What should the cost of playing the game be in order to make it a fair game?
The cost of playing the game should be?
6÷6.50=$1.08. 1.08 ×6= $6.48 + 2 =6.50
Write and inequality to compare the fractions. 24/18 and 25/15
Answer:
25/15 > 24/18
Step-by-step explanation: Both of these fractions can be reduced so that the denominator is 3. This will make it much easier to compare the two fractions. For 24/18, if you divide both the numerator and the denominator by 6, then the fraction simplifies to 4/3. For 25/15, if you divide the numerator and denominator by 5, then the fraction simplifies to 5/3. Since these fractions have a common denominator, the fraction with the larger numerator is going to be the larger fraction. So, 25/15 is greater than 24/18.
4x^2 times what equals -5x^2
Answer:
-1.25
Step-by-step explanation:
-5/4=
-1.25
check answer
4*-1.25= -5
Solve using a proportion . 5) If it costs $2.85 for 5 cookies, how much would 8 cookies cost?
Answer:
$4.56
Step-by-step explanation:
2.85:5
multiply each side by 8/5
4.56:8
so it is $4.56 for 8 cookies
PLEASE HELP PLEAAE HURRY ANS NO LINKS PLEASE I REALLY NEED THE ANSWER
Answer:
-2
Step-by-step explanation:
Answer:
[tex]2 - 4 = - 2 \times ( - 5) = 10 \div 2 = 5 + 4 = 9 \times ( - 2) = - 18[/tex]
Determine the value of x.
X 1
X 1.5
A)x=1
B)x=2.5
C)x=2
D)x=2.9
Answer:
The correct option is C. (x=2)
Step-by-step explanation:
Given
Length of the hypotenuse of the right angled triangle (h) = 2.5 cm
Length of one of the side (a) = 1.5 cm
Let the length third side be 'b' cm
By Pythagoras theorem
h² = a² + b²
Adding Values on both sides
⇒ (2.5)² = (1.5)² + b²
⇒ 6.25 = 2.25 + b²
⇒ 6.25 - 2.25 = b²
⇒ 4 = b²
⇒ √4 = b
⇒ 2 = b
⇒ b = 2
What is the length of the line segment with endpoints (12.7, −6.5) and (−13.5, −6.5) ?
Answer:
Its 26.2
Step-by-step explanation:
I just took the test
Yw :DD
Answer:
The answer is 26.2
Step-by-step explanation:
I took this test, got it wrong, then it explained it so that I could completely understand the question.
Will give brainliest.
Your cousin is selling cookies. He borrowed $10.82 from you for supplies and plans to sell each cookie for $0.75. If he sells an average of 12 cookies a day, how long will it take him to repay what he owes you AND make $25 in profit? (Round to the most reasonable number.)
Question 1 options:
3 days
4 days
5 days
6 days.
Show and explain your thought process for the question above. How did you reach your conclusion? What did you do to find that number?
Answer:
4 days
Step-by-step explanation:
um....
.........
........
The sum of 12 and 30 multiplied by 6
Answer:
Step-by-step explanation:
12*30=360
360/6=60
HELPPPPPPP
which relationship shows a quadratic variation?
Answer:
The first option
Step-by-step explanation:
The first option:
f(x) = 4(x^2)
Each time x is squared and then multiplied by 4.
___
f(1) = 4(1^2) = 4
f(2) = 4(2^2) = 16
f(3) = 4(3^2) = 36
f(4) = 4(4^2) = 64
Answer:
The first one
Step-by-step explanation:
This is because the function of it is f(x) = 4x^2. Additionally, this can be seen as there is not a perfect difference between the values.
Hope this helps... Feel free to mark this as brainliest! :D
Find (f^-1)'(7) without finding the inverse function where f(x) = 5 – 2x^3.
Step-by-step explanation:
the derivative of an inverse function is
1/f'(f^-1(x))
f'(x) = -6x²
f^-1(7) is solving the original function equation for x under the knowledge that y = 7
7 = 5 - 2x³
2 = -2x³
-1 = x³
=>
x = -1
f'(-1) = -6×(-1)² = -6×1 = -6
so,
(f^-1)'(7) = -1/6
Grace sold 4062 ml of fruit juice in January.
She sold 1053 ml less fruit juice in January than in February.
How much fruit juice did Grace sell in February?
Leave your answer in litres and millilitres.
Answer:
she sold 5,115 ml of fruit juice and in liters is 5.115 liters
HELP ME ILL GIVE BRAINLIEST!! BUT YOU HAVE TO SHOW WORK
A box measures 3 1/2 ft by 2 1/4. What is the volume of the box? Show your work.
We can't find volume through given information.
Lets find the area
L=3-1/2=7/2ftB=2-1/4=9/4ft[tex]\\ \sf\longmapsto Area=LB[/tex]
[tex]\\ \sf\longmapsto Area=\dfrac{7}{2}\times \dfrac{9}{4}[/tex]
[tex]\\ \sf\longmapsto Area=\dfrac{63}{6}[/tex]
A piece of wire 3/7 m long as we cut into six pieces of the same length what is the length of each piece
Answer:
Each piece is 1/7 m long
Step-by-step explanation:
Wire length = 3/7 m
Pieces = 6
1 piece = 3/7 ÷ 6
= 3/7 ÷ 6/1
= 3/7 × 1/6
= 1/7 m
You might need:
Find one value of x that is a solution to the equation:
(x2 – 6)2 = -3x2 + 18
X=
Answer:
[tex]x = \sqrt{6} [/tex]
Step-by-step explanation:
2(x^2 - 6) = - 3x^2 + 18
2x^2 - 12 = - 3x^2 + 18
5x^2 - 12 = 18
5x^2 = 30
x^2 = 6
x = square root (6)
For each equation, determine if Y as a function of X.
Answer:
Not a function
Step-by-step explanation:
If you were to graph it, these would fail the vertical line test.
How do I solve systems of equations?
y=5x-8 5y=2x+6
Answer:
y=5x-8 , 5y=2x+6
y=5x-8 , y=2x+6-5
y=5x-8 , y=2x+1
y=3x , y=3x
Step-by-step explanation:
we checkout the equation and put the common factors then solve
Find the perimeter of the triangle whose vertices are (−4,4), (−4,1), and (−8,−4). Write the exact answer. Do not round.
Answer:
Step-by-step explanation:
The perimeter of the triangle is [tex]3 + \sqrt{41} + 5\sqrt{5}[/tex] units
How to determine the perimeter?The coordinates are given as:
(−4,4), (−4,1), and (−8,−4).
Calculate the distance between the vertices using:
[tex]d = \sqrt{(x_2 -x_1)^2 + (y_2 -y_1)^2[/tex]
So, we have:
[tex]AB = \sqrt{(-4 + 4)^2 + (4-1)^2} = 3[/tex]
[tex]BC = \sqrt{(-4 + 8)^2 + (1+4)^2} = \sqrt{41[/tex]
[tex]AC = \sqrt{(-4 + 8)^2 + (4+4)^2} = \sqrt{80[/tex]
The perimeter is the sum of the side lengths.
So, we have:
[tex]P = 3 + \sqrt{41} + \sqrt{80}[/tex]
Expand
[tex]P = 3 + \sqrt{41} + 4\sqrt{5}[/tex]
Hence, the perimeter of the triangle is [tex]3 + \sqrt{41} + 5\sqrt{5}[/tex] units
Read more about perimeter at:
https://brainly.com/question/24571594
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