The student answered 21 questions correctly on a test.
What is the Multiplication operation?In mathematics, Multiplication operations perform Multiplying values on either side of the operator.
For example 4×2 = 8
Since the student made an 85% on a test with 25 questions.
To determine the number of questions the student answered correctly, we need to multiply the number of questions by the percentage of questions answered correctly, which is 85%.
= 25 questions × 0.85
Apply the multiplication operation, and we get
= 21.25
Rounding to the nearest whole number,
= 21 questions
Thus, the student answered 21 questions correctly.
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4 + 6^2 + 9x3-10
Help plz
Answer:
57
Step-by-step explanation:
Answer:
9x^3+30
Step-by-step explanation:
Im not sure if you wanted to simplify because you werent specific but I simplified
Can anyone help me I’ll mark ya Brainly
Answer:
1/6
Step-by-step explanation:
Write the standard equation of the circle if the center is (-1,2), and a point on the circle is (2,6).
Plzzzzz helpppp me
Answer:
(x + 1)² + (y - 2)² = 25Step-by-step explanation:
The center is given:
(-1, 2)Find the radius, the distance from the center to a point (2, 6)
r² = (2 - (-1))² + (6 - 2)² = 3² + 4² = 25r = √25 = 5Use circle formula:
(x - h)² + (y - k)² = r²(x - (-1))² + (y - 2)² = 5²(x + 1)² + (y - 2)² = 25Solve by Substitution -8x-10y=12 -7x-10y=3
Answer:
Point Form:
(−9,6)
Equation Form:
x=−9,y=6
Step-by-step explanation:
Determine the magnitude for the vector v that has the initial point (3, -8) and terminal point (-5, 4). Round to the nearest hundredth.
A. 3.46
B. 4. 47
C. 8.94
D. 14.42
PLEASEEE HELPPPP OVERRRR DUEEEE!!!!
Answer:
x<-2
Step-by-step explanation:
The open circle indicates that -2 is not included in the qualifications for x, but since the arrow is left, x<-2
please help asap <3333333
Answer:
5. 89
6. 98
7. 90
8. 130
Step-by-step explanation:
they are all equivalent to the one shown
5. 89, angles equal
6. 98, angles equal
7. 90, right angles
8. 130, angles equal
Brandon is making party decorations by selecting one of two kinds of balloons—heart-shaped balloons or oval-shaped balloons. He puts them in one of three baskets—red, pink, or white. The sample space for the event of selecting a balloon and putting it in one of the baskets is represented in the tree diagram. Complete the sample space.
Answer:
missing color is red missing shape is oval
Step-by-step explanation:
The sample space is {(Heart, Red), (Heart, Pink), (Heart, White), (Oval, Red), (Oval, Pink), (Oval, White)}.
What is sample space?It is the total number of possible outcomes from a given set.
We have,
Two types of balloons.
Heart and Oval.
Now,
Each balloon has three colors.
Red, Pink, and white.
Now,
The sample space.
= {(Heart, Red), (Heart, Pink), (Heart, White), (Oval, Red), (Oval, Pink), (Oval, White)}
Thus,
The sample space is {(Heart, Red), (Heart, Pink), (Heart, White), (Oval, Red), (Oval, Pink), (Oval, White)}.
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What addition statement does this show?
A. -3.4 + 5.7 = -9.1
B. -3.4 + (-5.7) = -9.1
C. 3.4 + (-5.7) = -9.1
D. 3.4 + 5.7 = -9.1
Answer:
B
Step-by-step explanation:
In a sale all items are reduced by 15%. A carpet now costs £15.30 per square metre. What was the price before the sale?
Answer:
,hope it will helpful to youuuuu
Which is the length of the hypitenuse?
Answer:
20
Step-by-step explanation:
the length of the hypotenuse of a right triangle can be found using the Pythagorean theorem which states that the square of the length of the hypothesis equal the sum of the square of the length of the other two sides
Sophie drew an angle that turns through 90/360 of a circle. Which describes the measure of Sophie’s angle?
14 degree
90/360 degree
90 degrees
360 degrees
Answer:
90/360 describes the Sophie angle its all ready said in question as you read
Kind request :- If you are helped with my answer pls tag me brianliest I really want it
THANK YOU..... Plzz see to my request
Use the transformation uequals=x plus 6 yx+6y, vequals=y minus xy−x to evaluate the given integral by first writing it as an integral over a region G in the uv-plane. ModifyingAbove Modifying Below Integral from nothing to nothing With four sevenths width 0 ModifyingAbove Modifying Below Integral from nothing to nothing With 4 minus 6 y width y (x plus 6 y )e Superscript (y minus x )Baseline dx dy
Answer:
Step-by-step explanation:
if i know
Please help, its very urgent.
A sequence can be generated by using an=13an−1, where n is a whole number greater than or equal to 1.
Given a11=6, what is a12?
2
4
18
72
Answer:
Given
aₙ = 1/3 aₙ₋₁If a₁₁ = 6, then
a₁₂ = 1/3 a₁₁ = 1/3(6) = 2Correct choice is A
what is the value of the expression shown below 6+(9-1)^2÷4×1/2^4
Answer:
280
Step-by-step explanation:
[6 + (9 - 1)²] ÷ 4·(1/2)^4
= 6 + 8² ÷ 4 · 1/16
= 6 + 64 ÷ 1/4
= 70 ÷ 1/4
= 70 x 4
Jesse collects data on his math scores on the last 12 tests and the number of hours he spent completing his math homework assignments and studying in the week before every test. He creates a scatter plot to show the data. The regression line shown on the graph best models the data on the scatter plot.
Based on the given model, how many hours in the week before the test does Jesse need to study to get a score of 90 on the test? Round your answer to the nearest hour.
Answer:
24 hoursStep-by-step explanation:
Using the two points on the regression line, let's find its equation.
Points:
(0, 30) and (8, 50)The slope:
(50 - 30)/8 = 2.5The y-intercept is
30The equation:
y = 2.5x + 30Solve for x if y = 90
90 = 2.5x + 302.5x = 60x = 60/2.5x = 24The answer is 24 hours
Evaluate the expressions for when x=-1, y=3, z=-2
z²+x²-y and x²y²z²
Step-by-step explanation:
z² +x² - y= -2²+ -1² - 3
4+ 1 - 3= 2
x²y²z²= -1²× 3²× -2²
1× 9× 4= 36
What’s the answer?!!!!!
No it is not a right angle
An arctic wooly bear caterpiller lives for 7 years and spends 90% of its life frozen. How many days of its life is the arctic wolly bear frozen.
Answer:
The arctic wolly bear is frozen 2,299.5 days of its life.
Step-by-step explanation:
With the information provided, first, you have to calculate the number of days in 7 years by multiplying 7 years for 365 that is the number of days in a year:
7*365=2,555
Then, you have to calculate 90% of 2,555 since the statement indicates that the arctic wooly bear caterpiller spends 90% of its life frozen:
2,555*90%=2,299.5
According to this, the answer is that the arctic wolly bear is frozen 2,299.5 days of its life.
HELP I WILL CHOOSE BRAINLIST
Answer:
I feel like its C or B
Step-by-step explanation:
Cory owes $1,000 to his bank. During the time of his loan, he is charged a rate of 12% simple annual interest. If he does not make any payments on his loan, which table shows the relationship between the amount he owes and the number of months?
A.
Balance Due Number of Months
$1,036 3
$1,084 7
$1,120 10
B.
Balance Due Number of Months
$1,020 2
$1,050 5
$1,090 9
C.
Balance Due Number of Months
$1,004.80 4
$1,009.60 8
$1,013.20 11
D.
Balance Due Number of Months
$1,005 5
$1,007 7
$1,012 12
Answer:
The answer is B
Step-by-step explanation:
Given: Cory owes $1,000 to his bank. During the time of his loan, he is charged a real of 12% simple annual interest
To find: If he does not make any payments on his loan, draw table showing the relationship between the amount he owes and the number of months
Solution:
Loan amount P = $ 1000
Rate of interest R = 12 % per annum
SI = P * R * T /100
one month T = (1/12) Years
Interest per month = 1000 * 12 * (1/12) /100 = $ 10
Hence interest chaarges $ 10 per month
Cory owes to bank the loan amount and interest
Cory owes = 1000 + 10 n
where n is the number of months
Month Amount
0 1000
1 1010
2 1020
3 1030
4 1040
5 1050
6 1060
7 1070
8 1080
9 1090
and so on
156.43 - 42.1
EXPLAIN HOW YOU GOT IT AND ILL MARK BRAINLIEST!
Answer:
Your answer is 114.33
Step-by-step explanation:
How I got the answer was
156.43
- 42.1
————-
114.33
It is easy subtraction don’t let decimals fool you!
For a easier way take out the dot in the decimal and put it in after when you got the answer!
Have a nice day! And thank you for this question! :)
Brainlest is always appreciated! :)
my life is hellpless.... could you please help? i cant even understand this I'm only 11.
Answer:
y-intercept: -4
slope: 2
equation: y = -4x + 2
Answer:
Y-intercept: -4
Slope: 2
Equation: y = 2x - 4
HELP FAST SELECT TWO!!!!
Answer:
2 and 5 are the answers
Step-by-step explanation:
The other ones are blatantly false
Answer: 2 and 5 but don't take my word for it.
Step-by-step explanation:
Please help with test offering big points pt 3
Answer:
25
Step-by-step explanation:
because if you do 1000 divided buy 25 its 69420 so if you do 69420 divided by 69420 its 1 and 1x1000 its 1000 divided by 54 its 25 so its 25
A washer and a dryer cost $726 combined. The washer costs $76 more than the dryer. What is the cost of the dryer?
Answer:Cost of dryer=$325
Step-by-step explanation:
Let the dryer be represented as x
and the washer be x+76
such that the price of both can be written as
dryer + washer=$726
x + x+76=726
2x+76=726
2x=726-76
2x=650
x=650/2=325
Cost of dryer =x=$325
Parallelogram PQRS has diagonals that are perpendicular. Based on that, which statement is most correct?
A- Parallelogram PQRS is also a rectangle
B- Parallelogram PQRS is also a rhombus.
C- Parallelogram PQRS is neither a rectangle nor a rhombus.
D- Parallelogram PQRS is both a rectangle and a rhombus, so it is a square.
Answer:
B- Parallelogram PQRS is also a rhombus.
Step-by-step explanation:
Given
Parallelogram PQRS with perpendicular diagonals
Required
Which of the option is true
(a) PQRS can be a rectangle
A rectangle do not have perpendicular diagonals.
Hence, (a) is false
If (a) is false, then (d) is also false
(b) PQRS can a rhombus
The diagonals of a rhombus are not perpendicular.
So (b) is true
No need to check for (c), since only option is true
Answer:
B- Parallelogram PQRS is also a rhombus.
Step-by-step explanation:
Hope this helps
Al precio de p dólares por unidad, se venden x unidades de cierto artículo al mes en el mercado con p=50-0.5x ¿Cuántas unidades como mínimo se deben vender cada mes con el objetivo de tener ingresos de por lo menos de 1.200 dólares?
Answer:
Se debe vender un mínimo mensual de 40 artículos para tener un ingreso mínimo de 1.200 dólares.
Step-by-step explanation:
De acuerdo con el enunciado, [tex]x[/tex] es la cantidad mínima de artículos a un precio de [tex]p[/tex]. Además, los ingresos totales deben ser de un mínimo de 1200. En consecuencia, tenemos el siguiente sistema de ecuaciones:
[tex]x \cdot p = 1200[/tex] (1)
[tex]p = 50-0.5\cdot x[/tex] (2)
Aplicando (2) en (1), tenemos la siguiente ecuación polinómica:
[tex]x\cdot (50-0.5\cdot x) = 1200[/tex]
[tex]50\cdot x -0.5\cdot x^{2} = 1200[/tex]
[tex]0.5\cdot x^{2}-50\cdot x +1200 = 0[/tex] (3)
Por la Fórmula de la Cuadrática tenemos las raíces del polinomio:
[tex]x_{1} = 60[/tex], [tex]x_{2} = 40[/tex]
De acuerdo con el resultado anterior, se debe vender un mínimo mensual de 40 artículos para tener un ingreso mínimo de 1.200 dólares.
Find the intercept and slope in the graph, and find the aquation for the function.
Answer:
Slope = 3
y intercept = -8
y = 3x - 8
Step-by-step explanation:
From the table shown, we can make use of the coordinate points
(0, -8) and (1, -5)
Slope m = y2-y1/x2-x1
m = -5-(-8)/1-0
m = -5+8/1-0
m = 3/1
m = 3
Slope = 3
The standard form of an equation is y = mx+b
b is the y intercept
Substitute m = 3 and (0, -8) into y = mx+b
-8 = 3(0) + b
-8 = b
b = -8
Hence y intercept is -8
Get the required equation
Recall that y = mx+b
y = 3x + (-8)
y = 3x - 8
This gives the required equation
The radius of a circle is 3/4 inches. How many inches is the diameter?
Step-by-step explanation:
Given
In a circle
Radius (r) = 3 / 4 inches
Diameter (d)
= 2 * r
= 2 * 3 /4
= 3 /2 inches
Hope it will help :)❤
The diameter of a circle with a radius of 3/4 inches is 6/4 inches.
We are given that;
The radius of a circle = 3/4 inches
Now,
The diameter of a circle is twice the radius of the circle. Therefore, to find the diameter of a circle with a radius of 3/4 inches, we need to multiply 3/4 by 2. We can do this by multiplying the numerators and the denominators:
(3/4) x 2 = (3 x 2)/(4 x 2) = 6/8
We can simplify this fraction by dividing both the numerator and the denominator by their greatest common factor, which is 2:
6/8 = (6/2)/(8/2) = 6/4
Therefore, by the circle the answer will be 6/4.
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