Answer:
A
Step-by-step explanation:
its not c or b, they are both negative, and D is y=x, so A = y=2x because 2/1 is 2, the gradient
Solve for x. Round all answers to the nearest tenth
Please help
Answer:
36.9
Step-by-step explanation:
A bike trail is drawn on a coordinate system. Each end of the trail is an x-intercept. The height of the trail is modeled by the function h(x) = -0.1x^2 - 0.3x +2.8 , where x is the horizontal distance in kilometers. How many meters is the horizontal distance of the trail?
Answer:
4metres
Step-by-step explanation:
Given the height of the trail modeled by the function h(x) = -0.1x^2 - 0.3x +2.8 , where x is the horizontal distance in kilometers
The horizontal distance occurs at the x intercept i.e at h(x) = 0
Substitute
0 = -0.1x^2 - 0.3x +2.8 ,
Multiply through by -10
0 = x^2 + 3x - 28
x^2 + 3x - 28 = 0
Factorize
x^2 + 7x - 4x - 28 = 0
x(x+7) - 4 (x+7) = 0
(x-4)(x+7) = 0
x-4 = 0 and x+7 = 0
x = 4 and -7
Since the danced cannot be negative, hence the horizontal distance of the trail is 4m
Choose the equations that have (-3, 5, 3) as a solution. Select the two correct
answers.
-x- y + 5z = 1
x - 2y + 3z = -4
x+y-z= -1
-x+y-z=4
2x - y + z = 8
Answer:
d and b
Step-by-step explanation:
Cece is finding the surface area of a square pyramid by finding the sum of the areas of its faces. Which statement best describes the faces of the pyramid?
A)one square and three triangles
B)one square and four triangles
C)three squares and one triangle
D)three squares and two triangles
Answer:
D. One square and four triangles
Step-by-step explanation:
Cece is finding the surface area of a square pyramid by finding the sum of the areas of its faces
Square pyramid has a square base.
each edge of the square base joins at the top of the vertex to make a pyramid
The sides of the pyramid is a triangle
the square has 4 sides, so four triangle on the sides of the pyramid
Hence one square and four triangles forms a square pyramid
Answer:
The answer is A). one square and three triangles
Step-by-step explanation:
If i'm incorrect pleas let me know.
5. Sarah has 5 less dollars than Jessica. Sarah has 17 dollars.
A: Write an equation that describes this solution.
B. What is the solution to the equation?
Answer:
A. J = 17 + 5
B. J = 22
Jessica has $22.
Answer:
22
Step-by-step explanation:
17+5 because the 5 represents how many more do jessica got and 17 means how much sarah got it total
What is the volume of the rectangular prism?
Answer:
There isn't any picture, so I'm assuming that the volume is l*w*h. Just multiply the three dimensions.
Step-by-step explanation:
Help me please I need it by tommrow
Answer:
Only answer is A
Answer:
The first and fourth one.
Step-by-step explanation:
A ratio of 5:2 is saying that for every 5 boys, there are 2 girls. Now, in the question, it says, "In a school" so it must be within the whole school, hence #4. Hope this helps!
What is the principal which would amount to $6900 in 3 years at 5% simple interest per annum?
Answer:
$6000
Step-by-step explanation:
accumulated amount = A = PI
A = $6900
Let P = x
6900 - I = x
I = (x)(0.05)(3yrs) = 0.15x
6900 - 0.15x = x
Add
6900 = 1.15x
Divide, solve for x
x = 6000
Algebra 2!!
The equation of the piecewise function f(x) is below. What is the value of f(3)?
Answer:
5
Step-by-step explanation:
Ask your self which equation you should use. Since it says F(3) then we have to find an equation that would fit this correctly. For example if we look at -X^2, X<-2 we could see that 3 is clearly not less than -2, leading to the conclusion that this is not the right equation.. If you look at the last equation it says that x has to be greater/equal to 0 which is true. So then we are left with the equation...
F(3)=x+2
F(3)=3+2
F(3)=5
Simplify the like terms
3w - 2h + -5w+6h
[tex]\huge\text{Hey there!}[/tex]
[tex]\large\text{3w - 2h + -5w + 6h}[/tex]
[tex]\large\text{COMBINE the LIKE TERMS}[/tex]
[tex]\large\text{(3w + (-5w)) + (-2h + 6h)}[/tex]
[tex]\large\text{(-2h + 6h) = 4h}[/tex]
[tex]\large\text{(3w - 5w) = -2w}[/tex]
[tex]\boxed{\boxed{\large\text{Answer: \bf4h - 2w}}}\huge\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
Answer for ( brain list, thanks, 5 star review)
Answer:
Your answer is 4.99
Step-by-step explanation:
259.48/52 will take some work if you use long division, but eventually you get your answer of 4.99
the phone case you want to buy is marked down 30%, and you have a 25% off coupon. You pay $42.00. Can this equation be used to find the original price of the phone case? If so, what is the original price? Explain
what is a circumference
Answer:
25.13
Step-by-step explanation:
2 pie multiply radius
2 pie multiply 4
( I think so)
I hope this helps
A number tripled and tripled again is 576. What is the number?
Answer:
192
Step-by-step explanation:
Answer:
It is either 64 or 96. Thank u for ur time
Step-by-step explanation:
I literally used a calculater... and thats the truth...
can someone answer these question
Answer:
y=5
Step-by-step explanation:
Given x=1, the equation would come to be y = 5^1, or y equals 5 to the first power. You'll need to focus on the 5^1, 5 to the first power is 5, that's your answer.
Nora has a 12 ounce apple juice. She drinks 5 ounces. Enter the percentage of ounces Nora has left of her apple juice. Round your answer to the nearest hundredth.
Answer:
200% out of 1000% srry if im wrong
Step-by-step explanation:
Answer:
please answer this i need it too
Step-by-step explanation:
The Points in the table lie on a line. Find the slope of the line.
The slope is —-???
Plz I need help
Answer:
The slope is 2/5
Step-by-step explanation:
1.) Do (y1-y2)/(x1-x2)
(4-2)-(7-2) which is 2/5
2.) 2/5 is the slope
help if ya can please!!
Answer:
D
Step-by-step explanation:
Use the table to write a quadratic function in vertex form. Then rewrite the function in standard form.
Answer:
Step-by-step explanation:
The graph decreases at first, then changes direction at (2, 5).
y = a(x-2)^2 + 5
Plug in (1,11) and solve for a:
11 = a(1-2)^2 + 5
a = 6
Equation in vertex form:
y = 6(x-2)^2 + 5
Phil made a number line showing the multiples of 3/6...
What is the product 2 x 3/6?
the answer would be 6/6 because they want you to multiply 2 x 3/6
Find the volume of the cone
Answer:
formulae : 1/3 × area of base × height
= 1/3 × 6 × 8
= 1×2×8
=16
Slope intercept form of 4x+4y=-32
Answer:
y = - x - 8
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c
Given
4x + 4y = - 32 ( subtract 4x from both sides )
4y = - 4x - 32 ( divide all terms by 4 )
y = - x - 8 ← in slope- intercept form
Answer:
x+y=-8
Step-by-step explanation:
-32=4x+4y
-4y=4x+32
y=(4x+32)/-4
y=-x-8
x+y=-8
Now comparing to slope intercept form
y=mx+c,we get
slope =1
y intercept =1
y=-8
Find Measures in Intersecting Circles
The diameters of D, B, and A are 4 inches,
9 inches, and 18 inches, respectively. Find AC.
A. 3 in.
B. 5 in.
C. 7 in.
D. 9 in.
Zaynab decides to put £3000 in a bank account which pays 5% compound interest per year.
She wants to know what would be the balance of this account after 8 years.
Help plsssss.
Will mark brainlest
Step-by-step explanation:
y = mx + c
m before x = slope
C. y = 3x - 1
slope = 3
select C
Answer:
c) y=3x-1
Step-by-step explanation:
y=mx+b
Steve is playing a carnival game. He wants to win a prize, but he thinks he has about a 20% chance of winning. He uses the expression 0.2t to calculate the number of games he will need to play in order to win a prize.
If he plays the game 12 times, about how many times can he expect to win?
Answer:50%
Step-by-step explanation:
Steve's expected times of winning in 12 trials is about 2 times.
What is probability?Probability is the chance of occurrence of a certain event out of the total no. of events that can occur in a given context.
The winning chance of Steve is 20% or 0.2.
We know, We know The expected value, also known as the expectation, average, is a generalization of the weighted average in the field of probability theory.
Informally, the anticipated value is the arithmetic mean of a significant number of outcomes of a random variable that were independently chosen.
Therefore, If he plays the game 12 times the number of times he is expected to win is,
= 12×0.2.
= 2.4 Or 2 times.
learn more about probability here :
https://brainly.com/question/743546
#SPJ2
please answer ill give brainliest
Answer:
71
Step-by-step explanation:
i think this is right
Henry walked 3 miles and Sasha walked 12 miles.
Sasha says she walked 9 more miles than Henry.
Henry says that Sasha walked 3 times as many miles as he walked. Who is correct?
Which are solutions of the equation (x+5)(x-3)=0
Answer:-5 and 3
Step-by-step explanation:-5 +5 is 0 and 0 times any number is 0 also 3-3 is 0 and 0 times any number is 0
6+ 3x = 15 with work!
Answer:
X=3
Step-by-step explanation:
Rearrange terms
6+3=15
3+6=15
Subtract from both sides of the equation
3+6=15
3+6−6=15−6
Simplify
Subtract the numbers
Subtract the numbers
3=9
x=3
X = 3.
Step-by-step explanation:
1) Subtract 6 from both sides.
[tex]3x = 15 - 6[/tex]
2) Simplify 15 - 6 to 9.
[tex]3x = 9[/tex]
3) Divide both sides by 3.
[tex]x = \frac{9}{3} [/tex]
4) Simplify 9/3 to 3.
[tex]x = 3[/tex]
So, therefor, 5he answer is x=3.