Answer:
Subtraction property
Step-by-step explanation:
2-86. Simplify the expression
a. 5x + 4 - 2x +3 - 2x
b. 17m-2-9m + 7 -2m
c. 2xy - 2yz + 7x2 + 6xy - 2xz
Please help. I dont know how to do this
Answer:
y=3x+3
Step-by-step explanation:
3 is the slope, up 3 and right 1
3 is the y intercept
Lisa runs between 5 and 7 miles per day. It takes Lisa 10 minutes to run one mile. What is a reasonable amount of time that Lisa
spends running every day?
Answer:
50-70 minutes
Step-by-step explanation:
A football team gains 7 yards in the first down then gains 2 yards in the second down. Then loses 4 yards in the third yard. What is the net yardage?
Answer: 5
Step-by-step explanation:
First we should do the first step: 7+2=9, The they lose 4 which then 9-4
which would equal 5
Answer:
7+2-4=?
7+2=9-4=5
Final Answer: 5 YardsWhat evidence is there that a chemical reaction is taking place in the cold pack?
A)
change in odor
B)
change in color
0)
formation of gas
D)
temperature change
Which of the following is a rational number?
Answer:
A, B, D are the answers
Step-by-step explanation:
Kyla alternates between walking and jogging on an 11-mile trail. Her walking speed is 4 mi/h, and her jogging speed is 6 mi/h. Kyla takes 2 hours to go from the beginning to the end of the trail. Write and solve an equation to find the distance Kyla walked and the distance she jogged.
Answer:
Kyla walked 2 miles and jogged 9 miles
Step-by-step explanation:
Let the distance Kyla walked be x
and the distance Kyla jogged be y
Since the trail is 11-mile long, then
x + y = 11
Now, from the question,
Her walking speed is 4 mi/h and her jogging speed is 6 mi/h
Let the time spent to walk be t₁ and the time spent to jog be t₂
From
Distance = Speed × Time
Then, the distance walked x is
x = 4 mi/h × t₁
and the distance jogged y is
y = 6 mi/h × t₂
From the question, Kyla takes 2 hours to go from the beginning to the end of the trail, that is
t₁ + t₂ = 2 hours
∴t₁ = 2 - t₂
Since
x + y = 11, then we can write that
(4 mi/h × t₁) + (6 mi/h × t₂) = 11
But t₁ = 2 - t₂
Then,
(4 mi/h × t₁) + (6 mi/h × t₂) = 11; becomes
(4 mi/h × (2 - t₂)) + (6 mi/h × t₂) = 11
8 - 4t₂ + 6t₂ = 11
2t₂ = 11 - 8
2t₂ = 3
t₂ = 3/2
t₂ = 1.5 hours
This is the time spent to jog
Then, from t₁ = 2 - t₂
t₁ = 2 - 1.5
t₁ = 0.5 hour
This is the time spent to walk
Now, For the distance Kyla walked, x
x = 4 mi/h × t₁
x = 4 mi/h × 0.5
x = 2 miles
Hence, she walked 2 miles
and for the distance Kyla jogged, y
y = 6 mi/h × t₂
y = 6 mi/h × 1.5
y = 9 miles
Hence, she jogged 9 miles
Rembrandt framed his masterpiece. The painting by itself is a rectangle with length 20 \text{ cm}20 cm 20, start text, space, c, m, end text and width 16 \text{ cm}16 cm 16, start text, space, c, m, end text. The painting and frame together form a larger rectangle with length 25 \text{ cm}25 cm 25, start text, space, c, m, end text and width 20 \text{ cm}20 cm 20, start text, space, c, m, end text. Find the area of the frame.
Answer:
180cm²
Step-by-step explanation:
Area of the frame = area of the frame+ painting - area of painting.
Area of a rectangle = Length × Width
Area of the painting = 20cm×16cm
Area of the painting = 320cm²
Area of the paint+ frame = 25cm×20cm
Area of the paint+ frame = 500cm²
Area of the frame = 500cm²-320cm²
Area of the frame = 180cm²
Hence the area of the frame is 180cm²
Complete the sentence.
A regular pentagon and a regular hexagon can intersect in
a line
a ray
a line segment
a rectangle
Submit
Answer:
A line segment
Step-by-step explanation:
Mr. Ortiz competed in a local aquathlon, which is a swimming and running race. The total distance of the race was 7.13 miles. If the running event was 6.2 miles, what was the distance of the swimming event? SOMEONE PLS HELP MEEEE I AM ON A QUIZ !!! AND I AM FAILING MATHHH!!
Answer:
subtract 7.13 and 6.2 and you will get your answer
Step-by-step explanation:
Im doing the assignment on Edgenuity
and i passed hope this helps:)
Answer: You have to subtract 7.13 and 6.2 and you will get your answer of 0.93.
Step-by-step explanation:
The sum of two numbers is no more than 28. Let x represent the first number, and let y represent the second number. Which inequality represents this situation?
A) y
B) y<_x+28
C) x+y <28
D) x+y<_28
Answer:
x+y < 28
Step-by-step explanation:
1. Look at your variables: x is the first number and y is the second.
2. Know the limits: It says it has to be NO MORE than 28, so the inequality has to be less than (<) 28. And it says that the SUM of 2 numbers (in this case x and y), is no more than 28, so you know there's some addition between the two.
3. Write out your inequality: x+y < 28
April's flower bed has a length of 5 feet and a width of twelve twelves feet. Which of the following is true?
A. The area of the flower bed is equal to 12 square feet.
B. The area of the flower bed is larger than 12 square feet.
C.The area of the flower bed is equal to 5 square feet.
D. The area of the flower bed is smaller than 5 square feet.
Answer:
B
Step-by-step explanation:
12 times 5 = 60
12<60
The Quadratic when written in factored form is (x-3)(x+9)=0. What are the roots?
3 and 9
-3 and 9
3 and -9
-3 and -9
A bag of snack mix weighs 12 ounces. A serving size is 3/4
ounce. Each serving has 120 calories.
Answer:
16 servings and 1920 calories in 1 snack bag
Step-by-step explanation:
12 ounces divided by 3/4 = 16 servings
120 calories/servings x 16 servings = 1920 calories in 1 snack bag
Which graph is the linear function that has a slope of 1/3 and contains the point (- 2, - 4) ?
Answer:
Option 1 (The last one, bottom right)
Step-by-step explanation:
If you start at the origin and go 2 to the left and 4 down, you will reach a point. We can test the slope by using rise over run from one point to another. It goes up 1 and three across which is true in this case.
Which equation justifies why 9 1/3 = 3 square root of 9?
Answer: answer is A
Step-by-step explanation:
DUDE IM GETTING MAD BECAUSE I KEEP FORGETTING THE IMAGE AND OMG PLEASE ANSWER IM BEGGING PLS
Let
x = number of tickets
y = cost
For each row, divide the cost over the number of tickets
Row one: y/x = 3/2 = 1.5
Row two: y/x = 6/4 = 1.5
Row three: y/x = 9/6 = 1.5
Row four: y/x = 12/8 = 1.5
Row five: y/x = 15/10 = 1.5
The constant of proportionality is 1.5
This means each ticket costs $1.50
(√5+√17i)(√5-√17i)=? (give answer in standard a+bi form)
Answer:
22
Step-by-step explanation:
Given
([tex]\sqrt{5}[/tex] + [tex]\sqrt{17}[/tex] i )([tex]\sqrt{5}[/tex] - [tex]\sqrt{17}[/tex] i ) ← expand factors using FOIL
= ([tex]\sqrt{5}[/tex] )² - ([tex]\sqrt{17}[/tex] )² i² ← i² = - 1
= 5 - 17(- 1)
= 5 + 17
= 22
28 point and branliest
Alan purchased 16 shares of company stock for $390.40. A month later, the total value of his shares fell to $291.20. What is the current price per share if each share costs the same?
A.
$6.20
B.
$18.20
C.
$24.04
D.
$24.40
Answer: $18.20
Step-by-step explanation:
390.40/16 to find the initial costs of the shares. That would be $24.40 per share. However, since the stock has fallen, you would do that same division, but with the new value. 291.20/16, which is $18.20
Answer:
$18.20 per share is the value of each stock currently
Step-by-step explanation:
Take the value the stocks are worth now and divide by the number of shares
291.20/16
$18.20 per share
$18.20 per share is the value of each stock currently
Find the vertex and vertex form of
the following:
f(x) = x^2 - 8x+9
Answer:
(4,-7)
Step-by-step explanation:
Rewrite in vertex form and use this form to find the vertex ( h,k ) .
Please answer 10 point + brainlyest = 1 big thank u
Step-by-step explanation:
FIRST, we want to understand every property:
Associative Property: The associative property states that you can add or multiply regardless of how the numbers are grouped so (5 + 4) + 3 = 5 + (4 + 3)
Commutative Property: Commutative is the one that refers to moving stuff around so 3 + 2 = 2 + 3
Additive Inverse Property: This is the number that when added to the original number, equals 0 or it's the opposite of the number so 5 <- is the original number and -5 <- is the additive inverse.
Simplify: Is just to add like terms, and make the equation the simplest.
1. ORIGINAL EXPRESSION
2. Additive Inverse Property
3. Commutative property
4. Associative Property
5. Simplify
6. Simplify
Find the simple interest earned. $5,000 invested at 4% for 3 years. pls
Answer:
I don't get what your asking us to do
Step-by-step explanation:
Given that ∠A≅∠B, Gavin conjectured that ∠A and ∠B are complementary angles.
Which statement is a counterexample to Gavin 's conjecture?
m∠A=10° and m∠B=15°
m∠A=45° and m∠B=45°
m∠A=30° and m∠B=60°
m∠A=25° and m∠B=25°
Convert 10 quarts (qt) to cubic feet (ft^3)
Answer:
10 US liquid quarts is 0.334201 cubic feet.
what does “ z “ equal in this equation z + 18 = 26
Answer:8
Step-by-step explanation:
Answer:
z = 8
Step-by-step explanation:
you have to work it backwards. 26-18=8
i need help with this geometry
Answer:
c
Step-by-step explanation:
use point slope form y-y1 = m(x-x1)
m = -1/2 because that would be perpendicular
then you plug in the numbers y-6= -1/2(x-4)
then solve for y so i will be in y=mx+b
help please with this question
Answer:
b. x - 2y = 4
Step-by-step explanation:
The two points on the graph are (0, -2) and (4, 0).
Find slope:
m = (y₂ - y₁) / (x₂ - x₁)
= (0 - (-2)) / (4 - 0)
= 2 / 4
= 1 / 2
Find y intercept using anyone of the points above:
y = mx + b
-2 = 1/2(0) + b
b = -2
Use m and b to make equation of line:
y = mx + b
y = 1/2x - 2
Possible answers:
a. 4x - 2y = 4
-2y = -4x + 4
y = 2x - 2
b. x - 2y = 4
-2y = -x + 4
y = 1/2x - 2
c. -2x + 4y = -4
4y = + 2x - 4
y = 1/2x - 1
Only choice b equals the equation of line above.
Evaluate 3^2 + (8 - 2) x 4 - 6/3
3^2 + (8 - 2) x 4 - 6/3
=9 + 24 - 2
=33 - 2
=31
Answer: 31
("x" = * right? not x)
Step-by-step explanation:
[tex]3^{2}[/tex]+(8-2) * 4 - [tex]\frac{6}{3}[/tex]
= 9+6 * 4 - 6/3
= 9+24 - 6/3
= 9+24-2
= 31
What is the missing statement for step 5?
m2 SQV = m_SQT
Om SQV + m2VQT = 180°
Om SQV + m2SQT = m_VQT
m
Answer:
m∠SQV + m∠VQT = 180°
Step-by-step explanation:
right on test.
A popular board game manufacturer was interested in the relationship between the amount of time it takes to play a game and how well that game is rated among board game players. Information was collected on several board games, and was used to obtain the regression equation y = 27.273x + 18.182, where x represents time it takes to play (in hours) and y is the predicted rating of that game (in points). What is the predicted rating of a game that takes 90 minutes to play?
18.182 points
59.0915 points
90 points
2,472.752 points
Answer:
B- 59.015
Step-by-step explanation:
Answer:
The answer is B. I don't know why everyone downvoted the first answer. So here's some fancy work so you know its right.
90 minutes/1 hour = 1.5 hours [one hour = 60 minutes]
(you can only put hours in for x)
27.273(1.5) + 18.182 = 59.0915 (B)
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if you're looking for the question "What is the predicted rating of a game that takes 1 hour to play?" the answer is (C), 45.455 points".
[this is a separate question that is similar]
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ED2021