Mathematics College

At a diving competition, Allison scored 78.5 on her first dive. Hannah's score on her first dive was 74.65. How many more points did Allison score on her first dive than Hannah? Show your work.

Answers

Answer 1

Answer:

78.5-74.65=3.85

Step-by-step explanation:

Related Questions

Given f(x)=3x-4 and g(x)=-2x+7 evaluate

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Step-by-step explanation:

e...

First;

g(5)=-2×5+7=-3

then

f(g(5))=3×-3-4=-9-4=-13

f...

g(2)=-2×2+7=3

now

g(g(2))=-2×3+7=1

Use the grouping method to factor this polynomial completely.
3x3 + 12x2 + 2x + 8
A. (3x2 + 4)(x+4)
B. (3x2 + 4)(x+2)
C. (3x2 + 2)(x + 2)
O D. (3x2 + 2)(x+4)

Answers

Answer:

[tex]D)\:(3x^{2} +2)(x+4)[/tex]

Step-by-step explanation:

[tex]3x^{3} + 12x^{2} + 2x + 8[/tex]

Group, [tex]3x^3+12x^2+2x+8[/tex] [tex]=(3x^{3} +12x^{2} )+(2x+8)[/tex]factor out [tex]3x^{2}[/tex]in the first and 2 in the second group.

[tex]3x^{2} (x+4)+2(x+4)[/tex]

Factor out common term [tex]x+4[/tex] by using distributive property.

polynomial [tex]3x^{2} +2[/tex] is not factored since it does not have any rational roots.

[tex](3x^{2} +2)(x+4)[/tex]

_____________________________

Answer:d

Step-by-step explanation:

What is the value of
-3x+2y-x
When x = -1 and y = 5

Answers

14
here is my work

Hopes it helps

The elevation of a submarine with respect to sea level is displayed as - 125 feet. Which statement is correct?

A. The submarine is 125 feet above sea level.
B. The submarine is 125 feet below sea level.
C. The submarine is -125 feet above sea level.
D. The submarine is -125 feet below sea level.

Answers

B. The submarine is 125 feet below sea level.

Step-by-step explanation:

-124 feet because - (negative) means the submarine is 124 meters below sea level (masl).

Answer:

The elevation of a submarine with respect to sea level is displayed as - 125 feet. Which statement is correct?

A. The submarine is 125 feet above sea level.

B. The submarine is 125 feet below sea level.

C. The submarine is -125 feet above sea level.

D. The submarine is -125 feet below sea level.

Step-by-step explanation:

The keyword is below so it means it is a negative integer. Therefore the answer is letter D.

4p - 3=17
Please help

Answers

Answer:

hey there,

4p=17+3p=20/4So now p=5

Step-by-step explanation:

#BEBRAINLY

Answer:

Step-by-step explanation:

17+3=20

4×5=20

20-17=3

Looking for the answer for the second one

Answers

Answer:

3 for the left one, and 5 on the right one.

Step-by-step explanation:

The scale factor is 2 because they are scaled from each other, meaning they have proportional side lengths. (The angles are also the same <hint for the next question>)

If the top side is 2.5, and the bottom is 5, then you divide to find the scaled factor since they correlate to each other.

If the side lengths on A is multiplied by 2, you can do that to the missing sides to find the answers.

What is 11,885 as a percentage (round to 2 decimal places X.XX)?

Answers

Answer:

9.25

Step-by-step explanation:

Expand 3(2y+1)

Answer this, please.

Answers

Answer:

6y + 3

Step-by-step explanation:

3.2y+3.1=6y+3

Hope it helps!!

Graph this function using intercepts
X + 5y = -5

Answers

we set y for 0 and get x = -5

this is your x-intercept

we set x for 0 and get 5y = -5

y = -1

(-5,0)

(0,-1)

hope this helped :)

m các ma trận vuông cấp hai thỏa mãn
a) A2 = O,
b) A2 = I,
c) A2 = A,
d) AB = BA với B =

1 3
2 4
.

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Step-by-step explanation:

ano taong diyan po pic mo

3x-47=180 solve for x

Answers

Answer:

x=75.66

Step-by-step explanation:

+47 180+47

3x=227

divide 3 on each side

x=75.66

3x-47=180

add 47 to both sides

3x=227

divide by 3

x= 75 2/3

help plz help

send photo

plz

Answers

Answer:

See below

Step-by-step explanation:

9 a)

8 + 3/4 = 8.75 cm

10 + 5 + 3 = 18 kg

1 + 1/5 = 1.2 l

10 a)

65 - 1 = 64 cm

100 + 100 * 2.5/4 = 162.5 ml

20 + 4.2 = 24.2° C

Answers to these questions please, no work required

Answers

Answer:

14. -1

15. -101/53

16. -3/2

Step-by-step explanation:

What's the domain of this function graph

Answers

Answer:

D) [0, ~)

Step-by-step explanation:

Domain of a Function:

the domain of a function is the set of values of x, the independent variable, that are responsible for the graph of the function.

For Example:

suppose, we have a function:

f(x) = 3x - 1

and it's domain is {1, 2, 3}

that means, the corresponding value of f(x) to these 3 values of x will be DEFINED, I.e., they exist and can be plotted on a graph.

The given function:

Therefore, for the given function, it's domain will be those values of x(the ones plotted on the horizontal line), that give some value to the function ,i.e., for which we can draw it's graph.

and since the graph starts from x = 0 and continues towards infiinity

(the arrow on the curve shows that the graph continues and hasn't yet come to a stop.)

So, that way we got [0, ~). ^^

Matthew has $540 in his bank account. He subscribes to a music streaming service for $7.99 per month. If he makes no other deposits or withdrawals, what is Matthews new account balance after 5 months of his subscription?

Answers

7.99 x 5 = 39.95 (40 dollars) 540-39.95 =500.05

Answer:

500.05

Step-by-step explanation:

7.99 x 5 is of course 39.95 and 39.95 - 540 is 500.05 and that's on period

How would i graph the solution set for 1/3x (greater than or equal to) y+2?

Answers

1/3x ≥ y + 2

You’ll have to transform the equation into its slope-intercept form, y = mx + b, so that you could graph the line. Set y to “=“

1/3x = y + 2
Subtract 2 from both sides

1/3x -2 = y + 2- 2

1/3x - 2 = y or y = 1/3x - 2

Next, to graph the solid line, you need at least two points to plot. We can start with the y-intercept, (0, -2). Another point to use is the x-intercept. To solve for the x-intercept, (a, 0), set y = 0:

0 = 1/3x - 2
Add 2 on both sides:

0 + 2 = 1/3x - 2 + 2
2 = 1/3x

Multiply both sides by 3 to solve for x:
2(3) = (3) 1/3x

6 = x

Therefore, the x-intercept = (6,0).

Plot the intercepts on the graph and connect those two points to create line.

Next, to identify which half-plane region to shade, choose a convenient test point (not on the line) to see whether it part of the solution. We could use the point of origin, (0, 0). Substitute its values into the linear inequality:

1/3x ≥ y + 2

1/3(0) ≥ (0) + 2
0 ≥ 2 (false statement). Therefore, you must shade the half-plane region where it doesn’t contain the test point, (0, 0).

Attached is the graph where it shows that the shaded lower half-plane region.

Please mark my answers as the Brainliest if you find my explanations helpful :)

Tom must choose a number between 49 and 95 that is a multiple of 4, 7, and 14. Write all the numbers that he could
choose. If there is more than one number, separate them with commas.

Answers

Answer:

56;70;84

Step-by-step explanation:

Order of operations
11 + 14 ÷ 2 - 1

Answers

Answer:

Step-by-step explanation:

(11+14÷2)−1

(11+7)−1

18−1

Find three consecutive multiples of 6 with a sum that is four times the least of the numbers.

Answers

The answer is 18, 24, 30. 18 + 24 + 30 = 72. 4 * 18 = 72.

Answer:

18 , 24, 30

Step-by-step explanation:

6x + (6x+6) + (6x+6+6) = 4*6x

18x + 18 = 24x

6x = 18

x = 3

3 multiples of 6: 18 , 24, 30

check: 18+24+30=72

4*18 = 72

What is the slope of the linear equation that has the values shown?
x y
-4 15
-2 9
0 3
2 -3
4 -9

Answers

Answer:

xy-29490

Step-by-step explanation:

Convert numbers 359 to binary

Answers

Expand 359 as a sum of the largest powers of 2 that you can:

359 = 256 + 103

359 = 256 + 64 + 39

359 = 256 + 64 + 32 + 7

359 = 256 + 64 + 32 + 4 + 3

359 = 256 + 64 + 32 + 4 + 2 + 1

359 = 2⁸ + 2⁶ + 2⁵ + 2² + 2¹ + 2⁰

359 = 1 0110 0111₂

the temperature was 80degrees F and then fell 20 degrees F. draw a diagram to represent.

Answers

Look up a basic graph and go off of that. On the right side up, write down in 10’s all the way to 100. so the same with the line on the bottom. put a point at 80, then 20. then connect with a straight line. make sure to label with degrees Fahrenheit!

I hope this helps! & Let me know if you have any questions!

Mark this as Brainliest if you get a chance:)

Help!! ASAP

Is relation below a function? If it is a function, state its domain.

{(0,3),(2,-3),(1,8),(2,3)}

A. The relation is not a function.
B. The relation is a function. The domain is {0,1,2}.
C. The relation is a function. The domain is {-3,3,8}
D. The relation is a function. The domain is {-3,0,1,2,3,8}

Answers

Answer:

A. The relation is not a function.

Step-by-step explanation:

Since 2 --> -3, and 2 --> 3, the relation is not a function.

4•d=d•4

Choose the property of real numbers that justifies the equation

Answers

Answer:

Commutative Property of Multiplication

Step-by-step explanation:

Commutative Property of Multiplication

a • b = b • a

4 • d = d • 4

"commute = to get up and move to a new location: switch places"

One positive number is 5 times another number. The difference between the two numbers is 1464, find the numbers.

Answers

Answer:

The answer is 292.8

Step-by-step explanation:

You just have to divided 1464 by 5

What are the steps to solving this following equation? Put answer and steps.
(5) * (-9) * (-2)

Answers

Answer:

Step-by-step explanation:

you can multiply anything here in any order.

you could first do 5 times -9

5 * -9 = -45

and then multiply the -2 to the -45

-2 * -45 = 90

8 x 46 = 8 x (40 + ______)
= (8 x 40) + (______ x _______)
= _______ + ________
= ________

Answers

8x46=8x(40+6)
=(8x40)+(8x6)
=(320) + (48)
=368

The radius of circle A is r cm. The radius of circle B is twice the radius of circle A. What difference between the circumference of circle B and circle A (in cm)?

Answers

9514 1404 393

Answer:

2πr cm

Step-by-step explanation:

The circumference of a circle of radius r is ...

C = 2πr

For a radius of (r cm), the circumference is ...

A = 2π(r cm) = 2πr cm

For a radius of (2r cm), the circumference is ...

B = 2π(2r cm) = 4πr cm

Then the difference between the circumferences is ...

B -A = (4πr cm) -(2πr cm) = 2πr cm . . . . difference in circumference

Write an equation of the line in slope intercept form for (0,3) and (4,2)

Answers

Answer: 13

Step-by-step explanation:

the slope is the y/x ratio of the y and x coordinate differences when going from one point to the other. and it is always the factor of x in the equation.

x changes by 4 units (from 0 to 4), y changes by -1 unit (from 3 to 2).

so, the slope is -1/4.

the intercept means the intercept with the y-axis. and that means the y value when x = 0. which is given already by the first point : 3

so, the equation is

y = -1/4 x + 3

Ana and Ling are solving |3x + 14| = -6x.
Is either of them correct?...............................
Explain your reasoning.

Answers

Answer:

No! Both are wrong!

Step-by-step Explanation:

the value of absolute function, (|.|) is always positive

that means -6x always has to be positive

and for -6x to be positive x has to be negative

(since, two negatives make a positive)

therefore, the value of x to the equation will be a negative value and not a positive one.

Ana thinks both positive and negative values of x will be the solution, whereas Ling thinks negative value of x can't be a solution. So, they're both wrong.

ONLY negative value of x will be the solution.

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At a diving competition, Allison scored 78.5 on her first dive. Hannah's score on her first dive was 74.65. How many more points did Allison score on her first dive than Hannah? Show your work. ​

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At a diving competition, Allison scored 78.5 on her first dive. Hannah's score on her first dive was 74.65. How many more points did Allison score on her first dive than Hannah? Show your work.