Answer:
Step-by-step explanation:
Score of 2 questions = 2 *5 = 10
He got 2 questions wrong. So, 50 - 10 = 40.
Camden's test score out of 50 = [tex]\frac{40}{50}[/tex]
Score for x questions = x *5 = 5x
Camden's score if he got 'x' questions wrong = 50 - 5x
Please, help me I’m so dumb
Answer:
14036Step-by-step explanation:
You know that 9 = 10 - 1.
Then 9 of something is equal to 10 of it less one of it. Here, that "something" is four.
[tex]\begin{array}{cl}9\times4&=10\text{ fours}-\boxed{1}\text{ four}\\&=\boxed{40}-4\\&=\boxed{36}\end{array}[/tex]
_____
Comment on this math
This illustrates a shortcut for multiplying by 9 that can be convenient for mental arithmetic. The idea is to multiply by 10, which just involves adding 0 (or moving the decimal point), then subtract the original number.
if anyone could please help fast i will mark as brainiest
Answer:
[tex]\large\boxed{x^{36}}[/tex]
Step-by-step explanation:
Consider the properties:
[tex]\boxed{(x^a)^b=x^{a\cdot b}}[/tex]
[tex]\boxed{x^a \cdot x^b=x^{a+b}}[/tex]
[tex]\therefore (x^3)^6 \cdot (x^2)^9= x^{18} \cdot x^{18}= x^{36}[/tex]
Answer is 36
(x3)6 * (x2)9
x3*6x2*9
WILL GIVE BRAINLY What is the area of this triangle? Enter your answer as a decimal in the box. Round only your final answer to the nearest tenth. ___cm²
Answer:
K = 13.15 cm^2
Step-by-step explanation:
Sides:
a = 8 cm
b = 3.75631 cm
c = 7 cm
Angles:
A = 90.9699 °
B = 28 °
C = 61.0301 °
Other:
P = 18.7563 cm
s = 9.37816 cm
K = 13.1452 cm^2
r = 1.40168 cm
R = 4.00057 cm
Agenda: A = angle A
B = angle B
C = angle C
a = side a
b = side b
c = side c
P = perimeter
s = semi-perimeter
K = area
r = radius of inscribed circle
R = radius of circumscribed circle
Tell whether the ratios form a proportion. 3/7 , 12/21
Answer:
The answer is No, they aren't proportionate
Step-by-step explanation:
Answer:
They are not.
Step-by-step explanation:
5x-6y=17 whats the value of y?
Answer:
see below
Step-by-step explanation:
5x - 6y = 17
5x - 17 - 6y = 0
5x - 17 = 6y
y = [tex]\frac{5x - 17}{6}[/tex]
Answer:
Hey there!
Original Equation: 5x-6y=17
Subtract 5x: -6y=17-5x
Multiply by -1: 6y=5x-17
Divide by 6: y= [tex]\frac{5x-17}{6}[/tex].
Let me know if this helps :)
Kenji earned the test scores below in English class.
79, 91, 93, 85, 86, and 88
What are the mean and median of his test scores?
A. Mean: 79; Median: 93
B. Mean: 87; Median: 93
C. Mean: 87; Median: 87
D. Mean: 93; Median: 87
Answer:
C
Step-by-step explanation:
Mean is all the numbers divided by the amount of numbers listed and Median is what ever number is in the middle (when in order of value). when there's not a exact middle number u add the two numbers in the middle and divide it by two
Three times the sum of 7 and a number is 24
Answer:
The number is:
1
Step-by-step explanation:
3(7+a) = 24
3*7 + 3*a = 24
21 + 3a = 24
3a = 24 - 21
3a = 3
a = 3/3
a = 1
what is the length of the segment ĀB
Answer: 12
Step-by-step explanation: 7+5
Which of the following expressions has more than one term? (1 point)
O dz
O 4
Ot-t
O 18
'dz' because d and z are different values.
Answer:
t-t
Step-by-step explanation:
Kim's class voted on a location for a field trip. • 3/8of the class voted for the science museum. • 3/16 of the class voted for the water park. The rest of the class voted for the zoo. What fraction of the class voted for the zoo?
Answer fast please
8.
What is the 9th term in the quadratic sequence
shown below?
2, 5, 10, 17, 26, ...
A. 97
B. 82
C. 71
D. 65
For 1,a bag of marbles contains 4 black, 5 blue, 1 white, 2 yellow, and 3 green marbles 1. What is the ratio of the number of black marbles to the number of yellow marbles? A. 2:1 B. 1 to 5 C. 1:4 D. 1 to 2
Answer:
The ratio is 2:1
Step-by-step explanation:
black : yellow
4 2
Divide each side by 2
4/2 2/2
2 1
A vertex can represent
a person, object, location, or number
a variable or a pathway
a point, and nothing more
A rectangle has sides that measure 12x + 7 units long and 9x+ 11 units long. What is the expression that represents the perimeter of the rectangle?
Answer: P= 2{(12x+7) + (9x+11)} or 42x + 36
Step-by-step explanation:
The formula for the perimeter of a rectangle is P=2(l+w)
P= 2{(12x+7) + (9x+11)}
Simplified to 42x + 36
The table lists the test scores William and Andre received on five math assessments. Which student had the higher median? By how much? A: Andre by 7 points B: William by 5 points C: William by 7 points D: Andre by 5 points
Answer: c
First you organize the numbers into order then you find the middle of both. The middle of Williams was 89. Then you do the same for Andres and you get 82. To get the difference of them both you have to subtract both of them to get 7 and that’s c.
Select either relation (if the set is a relation but not a function), function (if the set is both a relation and a functions, or
neither (if the set is not a relation).
F=[lxy) x+y=10)
Answer:
I believe the answer is function
Step-by-step explanation:
Please Please Please help !!
Answer:
g(x) = x - 7
Step-by-step explanation:
g(x) is the same as saying "y".
you need to move the y-intercept down 7 units, therefore putting the term - 7 into the expression.
Answer:
g(x) = x-7
Step-by-step explanation:
First find f(x)
f(x) is the function y =x
f(x) = x
g(x) = f(x) + C C < 0 moves it down
We want to move it down 7 units
g(x) = f(x) -7
g(x) = x-7
Choose the correct order and evaluate the expression: (28÷4)×5−6+42
(28/4)*5-6+42
35-6+42
77-6
71
final answer is 71
first bracket one should be done then multily than addition and subraction.like this you get correct answer.
Given
m2 ABD is a straight angle.
m ABC = 8x - 41°
mZCBD = 9x + 17°
Find m2CBD:
А
B
D
Answer:
∠CBD = 125°
Step-by-step explanation:
The angle sum theorem tells you that ...
∠ABC +∠CBD = ∠ABD
8x -41° +9x +17° = 180° . . . . . . a "straight angle" has a measure of 180°
17x -24° = 180° . . . simpify
17x = 204° . . . . . . add 24°
x = 12° . . . . . . . . . . divide by 17
Now the measures of the angles can be found from their expressions.
∠ABC = 8(12) -41° = 55°
∠CBD = 9(12) +17° = 125°
Hayden places these four blocks into a bag. A B С He picks one block without looking. What is the probability that the block Hayden picks has a letter on it? . A 1/4 B 1/3 C 2/3 D 3/4
Answer:
Option D. 3/4
Step-by-step explanation:
From the question given above, we obtained the following information:
Block with letter = 3
Block with symbol = 1
Total = 4
Thus,
Sample space (S) = 4
Event of block with letter (nBl) = 3
Event of block with symbol (nBs) = 1
Finally, we shall obtain the probability of picking a block with letter as follow:
Sample space (S) = 4
Event of block with letter (nBl) = 3
Probability of picking a block with letter, P(Bl) =?
P(Bl) = nBl/nS
P(Bl) = 3/4
Therefore, the probability of picking a block with letter is 3/4.
In Alaska, the temperature can get cold really quickly. Yesterday, the temperature dropped 3° (° means degrees) for 9 straight hours. How would you find the temperature in Alaska after 9 hrs.?
Answer:
Step-by-step explanation:
Idk
True or False: The absolute value of a number is always positive, no matter what number you choose.
Answer:
Yes, it's always positive
Answer:
true
Step-by-step explanation:
it's just the distance from zero so it has to be positive either you go negative or positive!
Angela tried to solve an equation step by step. \begin{aligned} \dfrac34+m&=\dfrac54\\\\ \dfrac34+m-\dfrac34&=\dfrac54+\dfrac34&\green{\text{Step } 1}\\\\ m&=2&\blue{\text{Step } 2} \end{aligned} 4 3 +m 4 3 +m− 4 3 m = 4 5 = 4 5 + 4 3 =2 Step 1 Step 2 Find Angela's mistake.
Answer:
The mistake she made was ; She didn't change the sign when subtracting -3/4 from both sides
She wrote 5/4+3/4 instead of 5/4-3/4
Step-by-step explanation:
Correct solution:
[tex] \frac{3}{4} + m = \frac{5}{4} [/tex]
Subtract-3/4 from both sides
[tex] \frac{3}{4} - \frac{3}{4} + m = \frac{5}{4} - \frac{3}{4} [/tex]
Simplify
[tex]m = \frac{5}{4} - \frac{3}{4} \\ m = \frac{1}{2} [/tex]
The mistake Angela made was when she subtracted -3/4 from both sides, she didn't change the sign and She wrote 5/4 + 3/4 instead of 5/4-3/4.
What are Arithmetic operations?Arithmetic operations can also be specified by the subtract, divide, and multiply built-in functions.
The operator that performs the arithmetic operations are called arithmetic operators.
Operators which let do a basic mathematical calculation
+ Addition operation: Adds values on either side of the operator.
For example 4 + 2 = 6
- Subtraction operation: Subtracts the right-hand operand from the left-hand operand.
for example 4 -2 = 2
We have given the expression as
⇒ 3/4 + m = 5/4
The mistake Angela made was when she subtracted -3/4 from both sides, she didn't change the sign.
She wrote 5/4 + 3/4 instead of 5/4-3/4
Here is the correct work :
Subtract 3/4 from both sides from the equation,
⇒ 3/4 + m - 3/4 = 5/4 - 3/4
⇒ m = (5 - 3)/4
⇒ m = 2/4
⇒ m = 1/2
Learn more about the arithmetic operations here:
brainly.com/question/25834626
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Given that R is between S and T, find the measure of TS RS=6 TR=4.5 TS=?
Answer:
[tex]\huge\boxed{TS = 10.5}[/tex]
Step-by-step explanation:
Given that:
R is a point lying on line TS
So,
TS = TR + RS
Where TR = 4.5 and RS = 6
=> TS = 4.5 + 6
=> TS = 10.5
You start at (1,0) And move down 2 units and left 4 units where do you end
Answer:
(-3,-2)
Step-by-step explanation:
Starting at the point (1, 0)
Now we move don 2 units (so the y-value reduces in two units) making now the point (1,0-2) which is (1, -2)
then we move to the left 4 units (so the x-value has now to be decreased in 4 units) making the point: (1-4, -2) which is (-3, -2)
Answer:
It would be -2,4.
Step-by-step explanation:
you start at (1,0) and go down 2 to -2 then left 4 you would land on -2,4
given that the total surface area of a cuboid with a square base is 66cm^2 and the total length of the sides is 40c. Find the possible volume of the cuboid.
Answer:
660cm^3
Step-by-step explanation:
to find the volume of a square with surface area, you multiply the base by the height. So the base is 66 and the height is 10(because 40/4=10). Then 66x10=660. So 660cm^3 would be your answer. Hope that helps!
Answer:
36 cm³
≈ 35.85 cm³
Step-by-step explanation:
Given cuboid with:Total surface area = 66 cm²Total length of the sides = 40 cmTo find:Volume of cuboidSolutionLet side of the base be x and height be y
Then we have equatins for total surface area and total side length:
2*x² + 4*xy = 66 ⇒ x² + 2xy = 332*4x + 4y = 40 ⇒ 2x + y = 10 ⇒ y = 10 - 2xSubstituting y in the first equation:
x² + 2x(10 - 2x) = 33x² + 20x - 4x² = 33-3x² + 20x - 33 = 03x² - 20x + 33 = 0Solving the quadratic equation we get roots of:
x₁ = 3 cmx₂ = 11/3 cmFor x = 3, the value of y:
y₁ = 10 - 2x = 10 - 6 = 4 cmFor x = 11/3, the value of y:
y₂ = 10 - 2x = 10 - 22/3 = 8/3 cmBased on the found values we get 2 possible volumes:
V = base * height = x²yV₁ = 3²*4 = 36 cm³V₂ = (11/3)²*8/3 ≈ 35.85 cm³-8 - x = x - 4x
what is x?
Answer:
[tex] \boxed{ \bold{ \huge{\boxed{ \sf{x = 4}}}}}[/tex]
Step-by-step explanation:
[tex] \sf{ - 8 - x = x - 4x}[/tex]
Collect like terms
⇒[tex] \sf{ - 8 - x = - 3x}[/tex]
Move 3x to left hand side and change it's sign
Similarly, move 8 to right hand side and change it's sign
⇒[tex] \sf{ - x + 3x = 8}[/tex]
Collect like terms
⇒[tex] \sf{2x = 8}[/tex]
Divide both sides of the equation by 2
⇒[tex] \sf{ \frac{2x}{2} = \frac{8}{2} }[/tex]
Calculate
⇒[tex] \sf{x = 4}[/tex]
Hope I helped!
Best regards!!
If B is the midpoint of AC, solve for x, and find the lengths of AB, BC, and AC.
Please show all work and not just the answers.
Answer:
x=2
AB=8
BC=8
AC=16
Step-by-step explanation:
7x-6=12-2x
7x+2x=12+6
9x=18
x=2
AB=7x-6=7(2)-6=14-6=8
BC=12-2x-12-2(2)=12-4=9
AC=8+8=16
The associative property allows us to change the grouping of the factors that are
multiplied together to create what?
Answer:
Step-by-step explanation:equivalent expressions
The associative property allows us to change the grouping of the factors that are multiplied together to create an equivalent expression.
When the grouping of the addends is changed, the sum stays the same. The Associative Property of Multiplication states that when the grouping of the factors is changed, the product is the same. It is also called the Grouping Property of Multiplication. Always multiply the numbers inside the parentheses first.
What is the associative grouping property of multiplication?The associative property is a math rule that says that the way in which factors are grouped in a multiplication problem does not change the product.
Learn more about the associative property here: https://brainly.com/question/13181
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In the following problems, suppose J is between H and K.
• Use Segment Addition Postulate to solve for x.
• Then find the length of each segment.
11. HJ=6x-5
JK=4x-6
KH=129
12. HJ=4x-15
JK=5x-6
KH=15
Please show all work and not just answers.
Answer:
11. HJ = 79; JK = 50
12. HJ = 1; JK = 14
Step-by-step explanation:
The segment addition postulate tells you the total length is the sum of the segment lengths.
__
11. HJ + JK + HK
(6x -5) +(4x -6) = 129
10x = 140 . . . . add 11
x = 14 . . . . . . . divide by 10
6x -5 = 6(14) -5 = 79 = HJ
4x -6 = 4(14) -6 = 50 = JK
__
12. HJ + JK = HK
(4x -15) +(5x -6) = 15
9x = 36 . . . . . add 21
x = 4 . . . . . . . .divide by 9
4(4) -15 = 1 = HJ
5(4) -6 = 14 = JK