Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
Name Score
Julia 650
Andrew 550
Jason 380
Cathy 720
Jessica 710
Robert 550
The table gives the scores of 6 students from a class of 25 in a competitive exam. The point estimate of the mean score for the students is

Answer:

26

Step-by-step explanation:

Area of a triangle is:

A = 1/2 b h

Given b = 13 and h = 4:

A = 1/2 (13 cm) (4 cm)

A = 26 cm²

Answer:

12.75

Step-by-step explanation:

John picked out 12.75 apples on the big tree.

15% of 85 is 12.75.

Hope this helps! Please mark brainliest!

Answer:

approx 13 apples

Step-by-step explanation:

total apples : 85

given john picked 15% = 0.15 of the total apples

number of apples john picked = 0.15 x 85 = 12.75

rounding off to nearest whole number (because you can't really pick 0.75 of an apple) = 13 apples

Answer:

B)$363

Step-by-step explanation:

since she earned $50 each week

50x3=150

then plus the $300 she has

300+150= 450

then add the groceries and two $25 gifts

25x2=50

37+50=87

then take that away from the amount of money she has

450-87=363

Irina has $63 left.

To calculate how much money Irina has left, we need to follow these steps:

Therefore, Irina has $63 left.

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Answer:

Inverse variation k=4

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent an inverse variation if it can be expressed in the form [tex]y*x=k[/tex] or [tex]y=k/x[/tex]

In this problem

The graph represent a inverse variation

Because

if x increases ----> y decreases

if x decreases ----> y increases

Find the value of k

we have that

For x=2, y=2 -----> see the graph

[tex]k=y*x[/tex]

substitute

[tex]k=2*2=4[/tex]

Answer:

Two solutions

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

The solution to a system of equations given graphically is at the point of intersection of the 2 lines.

Both lines have a slope m = - [tex]\frac{1}{2}[/tex]

Hence the lines are parallel and have no points of intersection

Thus the system has no solution → A

Answer:40 %

Step-by-step explanation:

Given

Debt=5,446,772,143,940,528 $

Gross domestic product(GDP)=13,647,498,222,417,097 $

Debt to GDP ratio is

=[tex]\frac{5,446,772,143,940,528}{13,647,498,222,417,097}[/tex]

=0.399104

[tex]39.91 \%\approx 40\%[/tex]

Answer:

his total income by the end of 4 years will be: $2622.

Step-by-step explanation:

A man earns a base salary of $2000, and every year he got a raise of 7% on his total income.

The first year, he will earn: 1.07($2000) = $2140

The second year he will earn: 1.07($2140) = $2289.8

The third year he will earn: 1.07($2289.8) = $2450.086

The fourth year he will earn: 1.07($2450.086) = $2621.59202

Therefore, his total income by the end of 4 years will be: $2622.

Answer:

Δy = 15

Step-by-step explanation:

Δy represents the change in the y-coordinates

We are given points (-3,-5) and (0,10)

here y₁ = -5 and y₂ = 10

so, delta y will be

Δy = y₂ - y₁

Δy = 10 -(-5)

Δy = 10 + 5

Δy = 15

So, delta y Δy =15

The answer is:

The correct option is the option D

[tex]g=1.63\frac{m}{s^{2}}[/tex]

To calculate the acceleration, we need to use the following formula that involves the given information (initial speed, final speed, and time).

We need to use the following free fall equation:

[tex]V_{f}=V_{o}-g*t[/tex]

Where:

[tex]V_{f}[/tex] is the final speed.

[tex]V_{o}[/tex] is the initial speed.

g is the acceleration due to gravity.

t is the time.

We are given the following information:

[tex]V_{f}=8.15\frac{m}{s}[/tex]

[tex]V_{o}=0\frac{m}{s}[/tex]

[tex]t=5seconds[/tex]

Then, using the formula to isolate the acceleration, we have:

[tex]V_{f}=V_{o}-g*t[/tex]

[tex]V_{f}=V_{o}-g*t\\\\g*t=V_{o}-V_{f}\\\\g=\frac{V_{o}-V_{f}}{t}[/tex]

Now, substituting we have:

[tex]g=\frac{V_{o}-V_{f}}{t}[/tex]

[tex]g=\frac{0-8.15\frac{m}{s}}{5seconds}=-1.63\frac{m}{s^{2}}[/tex]

Therefore, since we are looking for a magnitude, we have that the obtained value will be positive, so:

[tex]g=1.63\frac{m}{s^{2}}[/tex]

Hence, the correct option is the option D

[tex]g=1.63\frac{m}{s^{2}}[/tex]

Have a nice day!

ANSWER

The solution is (1,-3)

EXPLANATION

The system of Equations are;

[tex]x=4+y[/tex]

and

[tex]-10x+6y=-28[/tex]

We substitute the first equation into the second equation to get:

[tex]-10(4 + y)+6y=-28[/tex]

We expand the parenthesis to get:

[tex]-40 - 10y+6y=-28[/tex]

Group similar terms to get:

[tex]- 10y+6y=-28 + 40[/tex]

Simplify the similar terms to get;

[tex] - 4y = 12[/tex]

Divide both sides -4.

[tex]y = \frac{12}{ - 4} [/tex]

[tex]y = - 3[/tex]

We put y=-3 into the first equation to get:

[tex]x = 4 + - 3 = 1[/tex]

Therefore the solution is (1,-3)

Answer:

π(4)²(16)

Step-by-step explanation:

Given r = 4, h = 16

Use formula for cylinder:

Volume of cylinder,

V = πr²h

= π(4)²(16)

Answer:

Answer:

π(4)²(16)

Step-by-step explanation:

Given r = 4, h = 16

Use formula for cylinder:

Volume of cylinder,  

V = πr²h

= π(4)²(16)

Step-by-step explanation:

Answer:

y=x-5

Step-by-step explanation:

"output" means  y

and "input" means  x

So all you need to find is the =

Please mark brainliest and have a great day!

Answer:

Last option: [tex]3+(-7)=-4[/tex]

Step-by-step explanation:

The number line can help us to make additions and subtractions.

To add a positive number we need to move the point to the right and to add a negative number we need to move the point to the left.

You can observe in the figure that the point on the number line is moved from 3 to -4, then it is moved 7 places to the left. Therefore, you can express it in the following form:

[tex]3+(-7)[/tex]

This is:

[tex]3+(-7)=3-7=-4[/tex]

Then the number line represents this number sentence:

[tex]3+(-7)=-4[/tex]

[tex]\bf (2x^2-3x)^2+4(2x^2-3x)+3=0\qquad \boxed{a=2x^2-3x}\implies a^2+4a+3=0 \\\\\\ (a+3)(a+1)=0\implies a= \begin{cases} -3\\ -1 \end{cases}\qquad \stackrel{\textit{their sum}}{-3-1\implies -4}[/tex]

Answer:

3/2

Step-by-step explanation:

(2x² − 3x)² + 4 (2x² − 3x) + 3 = 0

We can simplify this using substitution.  Let's say that u = 2x² − 3x.

u² + 4u + 3 = 0

Factoring:

(u + 3)(u + 1) = 0

u = -3, u = -1

Therefore:

2x² − 3x = -3, 2x² − 3x = -1

2x² − 3x + 3 = 0, 2x² − 3x + 1 = 0

For a quadratic ax² + bx + c = 0, the sum of the roots is -b/a.  So in both cases, the sum is 3/2.

Answer:

2.5

Step-by-step explanation:

16.1 + 16.1 = 32.2

37.2 - 32.2 = 5

5 / 2 = 2.5

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To find the population after t number of years, multiply the starting population by 1 plus the percent increase raised to the number of years.

The equation would be: P = 508(1.062)^t

Answer:

B. Y²⁴

Step-by-step explanation:

For perfect cubes, the exponents are a multiple of three. If yᵃ is a perfect cube, then a/3=k where k is a whole number.

Among the provided choices, the exponent of y²⁴ is divisible by 3.

24/3 = 8.

Thus y²⁴ is a perfect cube.

Answer:

B

thats the answer on edge 2020

Answer:

x = 72

y = 12

Step-by-step explanation:

x = 6y

x + y = 84

Just Guess & Check lol

Answer:

11 animals

Explanation:

-Sparkles is the first animal that is introduced, then the monkey is the second. Since there are 18 eyes, that can be divided by 2 to tell you how many of the remaining animals there are. Which would lead up to 9 and 9+2=11

Eleven (11) Animals

Based on the above given information, it can be construed that that Eleven (11) animals are in the forest.

The first mentioned animal is Sparkles the Unicorn (Animal 1) who probably might be hungry and, might have searched through the forest to get the nice big juicy apple.

She might have dodged several wild predating animals just for luck to smile on her through the discovery of a big juice apple. She plucks it, and starts eating. A nearby lurking, cunning monkey (Animal 2), snatches the fruit from Sparkles the Unicorn, due to her carelessness, and as she proceed to retrieve the fruit, she discovered that that wasn’t the only monkey around. She sees eighteen (18) pairs of eyes which means, there are nine (9) other animals i.e. 18 pairs of eyes divided by 2 (18/2 = 9) are also in the forest.

Therefore:

Animal 1 + Animal 2 + 9 other Animals = 11 Animals

This kind of question can be said to be a Mathematical Puzzle.

Mathematical puzzle is a form of recreational mathematics, which helps to enhance students’ knowledge.

Mathematical puzzle helps students to understand different concepts of mathematical problems.

This form of mathematical improve students’ learning ability

KEYWORDS:

ANSWER

[tex]y \leqslant - x + 4[/tex]

EXPLANATION

The equation of the boundary line is

[tex]y = - x + 4[/tex]

Hence the inequality is either

[tex]y \leqslant - x + 4[/tex]

or

[tex]y \geqslant - x + 4[/tex]

We test the origin to get determine which one represents the shaded

We substitute (0,0) into the first inequality to get;

[tex]0\leqslant - (0) + 4[/tex]

This implies that,

[tex]0 \leqslant 4[/tex]

Hence the correct answer is

[tex]y \leqslant - x + 4[/tex]

Answer: Second Option

[tex]y \leq -x +4[/tex]

Step-by-step explanation:

The region is bounded by a line of negative slope that cuts the y-axis at the point y = 4 and cuts the x-axis at the point x = 4.

So the equation of this line is

[tex]y = -x + 4[/tex]

If the region is composed of all the points that lie below the line y = -x + 4 then it means that the region is formed by all the values of y less than or equal to the line [tex]-x + 4[/tex].

Therefore the inequation is:

[tex]y \leq -x +4[/tex]

Second Option

For this case, we convert the mixed numbers to fractions:

Box 1: [tex]4 \frac {2} {3} = \frac {3 * 4 + 2} {3} = \frac {14} {3}[/tex]

Box 2: [tex]5 \frac {3} {8} = \frac {8 * 5 + 3} {8} = \frac {43} {8}[/tex]

We add the fractions to find the total weight of the boxes:

[tex]\frac {14} {3} + \frac {43} {8} = \frac {8 * 14 + 43 * 4} {3 * 8} = \frac {112 + 172} {24} = \frac {284 } {24} = \frac {142} {12} = \frac {71} {6}[/tex]

Thus, between the two boxes weigh[tex]\frac {71} {6}[/tex] ounces.

In mixed number: [tex]11 \frac {5} {6}[/tex]

Answer:

[tex]11 \frac {5} {6}[/tex]ounces

The total weight of the two boxes is 10 1/24 ounces, found by converting the mixed numbers into improper fractions, finding a common denominator, and adding the fractions together.

To find the total weight of two boxes when one weighs 4 2/3 ounces and the other weighs 5 3/8 ounces, we first convert the mixed numbers into improper fractions. For 4 2/3 ounces, this would be (4 × 3) + 2 = 14/3 ounces. For 5 3/8 ounces, it is (5 × 8) + 3 = 43/8 ounces. Once in improper fraction form, we find a common denominator, which is 24, and then we add the two fractions together.

The first box in twenty-fourths is (14/3) × (8/8) = 112/24. The second box is (43/8) × (3/3) = 129/24. Adding them gives us 112/24 + 129/24 = 241/24. We divide 241 by 24, which results in 10 with a remainder of 1, giving us 10 1/24 ounces.

Therefore, the total weight of the two boxes is 10 1/24 ounces.

Answer:

70.32 kg

Step-by-step explanation:

70.32 is bigger than 39.50 and 67.39

so it is the heaviest supply.

Answer:

70.32 kg

Step-by-step explanation:

Put the numbers from smallest to largest, since the units are the same

39.5, 67.39, 70.32

The largest is 70.32, so that is the heaviest

Answer:

Explanation of the above answer: “One less than the quotient of four and a number x. ""One less"" means you will subtract 1 from it. For that reason the overall expression is 4x-1.

Step-by-step explanation:

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[tex]\bf Px+35=-6x+Q\implies \stackrel{P}{~~\begin{matrix} -6 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}}x+35=~~\begin{matrix} -6x \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~+\stackrel{Q}{35}\implies 35=35[/tex]

whenever you get an equality like so, that's a flat that both equations are exactly one and the same and thus the system has "infinitely many solutions".

Answer: Third option.

Step-by-step explanation:

These are some transformations for a function f(x):

If [tex]f(x)-k[/tex], then the function is shifted down "k" units.

 If [tex]f(x-k)[/tex], then the function is shifted right "k" units.

Knowing this we can describe the transformation from the graph of the function [tex]f(x) = x^2[/tex] to the graph of the function [tex]f(x) = (x - 3)^2-1[/tex]. This is:

The function  [tex]f(x) = (x - 3)^2-1[/tex] is the function [tex]f(x) = x^2[/tex] but shifted right 3 units and shifted down 1 units.

Therefore, the correct option is the third one.

Answer:

right 3 units, down 1 unit

Answer:

216

Step-by-step explanation:

Anything to the zero power is equal to 0.

The denominator can be moved to the numerator because the exponent is negative. So it is now 1*6^3. This is equal to 216.

The value of expression [tex]\frac{d^{0} }{w^{-3} }[/tex] is 216

The correct option is (B).

Power can be defined as an expression that represents repeated multiplication of the same number whereas exponent is the quantity that represents the power to which the number is raised.

Given:

[tex]\frac{d^{0} }{w^{-3} }[/tex]

put d=-5 and w=6

So, [tex]\frac{-5^{0} }{6^{-3} }[/tex]

=1/[tex]6^{-3}[/tex]   [a°=1]

=6³      [[tex]1/a^{-b} = a^{b}[/tex]]

=216.

hence,  [tex]\frac{d^{0} }{w^{-3} }[/tex] = 216.

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Answer: B . on your test

Step-by-step explanation:

Answer:

6/7.

Step-by-step explanation:

The sum of the 2 numbers is greater than 5 in 6 out of 7 throws.

So the required experimental probability is 6/7.

Answer:

The experimental probability that the sum of the next two number rolled is more than 5 is [tex]\frac{6}{7}[/tex].

Step-by-step explanation:

From the given table it is clear that

Roll 1 : 6+6=12>5

Roll 2: 6+1=7>5

Roll 3: 3+5=8>5

Roll 4: 6+2=8>5

Roll 5: 6+4=10>5

Roll 6: 5+1=6>5

Roll 7: 3+2=5

There is information about 7 roll, therefore the total possible outcomes is 7.

6 out of seven rolls resulted in a sum greater than 5, therefore the favorable outcomes is 6.

The experimental probability that the sum of the next two number rolled is more than 5 is

[tex]P=\frac{\text{Favorable outcomes}}{\text{Total possible outcomes}}[/tex]

[tex]P=\frac{6}{7}[/tex]

Therefore the experimental probability that the sum of the next two number rolled is more than 5 is [tex]\frac{6}{7}[/tex].

Answer:

both equations represent the same line

Step-by-step explanation: