Joaquin took a quiz worth 45 points. He earned 40 points. What was his score
(percent) in the gradebook?

Answers

Answer 1

Answer:

88.8888888889% or 88% rounded

plz Brainliest?!?!?


Related Questions

how are ASA and AAS used to show that triangles are congruent?

Answers

Answer:

If two pairs of corresponding angles and the side between them are known to be congruent, the triangles are congruent. This shortcut is known as angle-side-angle (ASA). Another shortcut is angle-angle-side (AAS), where two pairs of angles and the non-included side are known to be congruent.

In ASA, two angles and one common side is equal and in AAS one not common side and two angles are equal.

What is triangle?

Simple polygons with three sides and three internal angles make up triangles. One of the fundamental geometric shapes is represented by the symbol and consists of three connected vertices.

The ASA congruence means, there will be two corresponding angles and one side between them will be equal, then the triangles are congruent.

The AAS congruence means, there will be two corresponding angles and one side excluded from them will be equal, then the triangles are congruent.

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Pleaz Helpz!!! I needz this done before my final!!!

Answers

the perimeter of the field is 442

width=w

the length of the field is 9 yards less than quadruple W

L=4x - 9

the perimeter is P=2L+2W

you can plug in the values

P= 2(4w-9) + 2W

plug in 442 for P

442= 2(4w- 9) + 2W

442= 8w - 36 + 2W

478 =8w + 2W

478= 10W

47.8 is your answer!!!


What is the slope of the line?

Answers

Answer:

[tex]m=-3[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (2, 3)

Point (3, 0)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m.

Substitute [SF]:                    [tex]m=\frac{0-3}{3-2}[/tex]Subtract:                              [tex]m=\frac{-3}{1}[/tex]Divide:                                 [tex]m=-3[/tex]

I'LL MARK AS BRAINIEST !!! please hurry !!!
Which expression is equivalent to cos 16°?
A. sin 164°
C. sin 84°
B. sin 16°
D. sin 74°

Answers

sin 16 because cos and sin are similar

Answer: my answer for dat will be sin 16 degrees

Step-by-step explanation:

Who knows how to do this I TRULY NEED HELP

Answers

the ratio of length for both triangle is 4 .

thus ,

5*4 = 20

3x + 8 = 20
x = 4

28 / 4 = 7

y + 5 = 7
y = 2

What is -2-(-7)

Plsss explain

Answers

Answer:

14 I think I'm. it completely sure

Answer:

5

Step-by-step explanation:

you keep the sign of the first number

change the minus sign to addition

and the 7 to a positive

-2 +7

is the same as 7 - 2 if you switch the term

What is the slope of the line that passes through the points M(-3,5) and N (1,8)

Answers

Answer:

m=[tex]\frac{3}{4}[/tex]

Step-by-step explanation:

Write an equation in slope-intercept form for the line that passes through the given point and is parallel to the graph of the given equation. (0,2); y=-5x + 8

Answers

Answer:

y=-5x+2

Step-by-step explanation:

its that because if the lines are parallel then they have the same slope. and it alr gives you the y intercept so just put it together

Use Properties to evaluate 3/5(-20÷1/3)(2/3)
A. 12
B. 24
C. -12
D.-24

Answers

the answer is to the problem is D

Answer:

D.-24

Step-by-step explanation:

what is 0.716 divided by 5?

Answers

the answer would be 0.1432

— 2х + Зу = 6
solve for y

Answers

Answer:

y = 2/3x+3

Step-by-step explanation:

-2x+3y=6

you add 2x to the other side 3y=2x+6

and divide by 3

y = 2/3x+2

Y=6
hope this helps good luck

i'm not sure what's the answer?
:)​

Answers

i believe the answer is  B.

The original price of a ski jacket was $220. It was on sale at a 25% discount. Arianna had a coupon for an additional 10% off the sale price.

What price did Arianna pay for the ski jacket?

Answers

$143
add the two discounts of 25 and 10 percent. then your item will be 65% of the price now.

PLZ ANSWER IF U KNOW THE ANSWER!

SHOW YOUR WORK!

Which of the following transformations would show that ∆DEF is congruent to ∆JKL?

A). ROTATION
B). A REFLECION IN THE Y-AXIS
C). A REFLECTION IN THE X-AXIS
D). A ROTATION ABOUT THE ORGIN

Answers

I believe a reflection in the x-axis.

If you would to count the number of squares until you hit the y-axis, they would be the same, which means that you are looking at a reflection across the x-axis, for example F and L are 1 unit separated starting from the y-axis, and K and E are 8 units starting from the y-axis, meaning that is a reflection across the x-axis

Hope this helps :).

What is the equation of the line through (2,3) and (0,-1)\

WILL GIVE BRAINLIEST

Answers

Answer:

y=2x−1

Explanation:

First, we need to determine the slope of the line. The formula for determining the slope of a line is:

m=y2−y1x2−x1

where m is the slope and the x and y terms are for the points:

(x1,y1) and (x2,y2)

For this problem the slope is:

m=3−−12−0

m=3+12m=42m=2

Now, selecting one of the points we can use the point slope formula to find the equation.

The point slope formula is:

y−y 1=m(x−x1)

Substituting one of our points gives:

y−1=2(x−0)y+1=2x

Solving for y

to put this in standard form gives:

y+1−1=2x−1

y+0=2x−1

y=2x−1

What is the value of 0.6 + 0.3? Write your answer as a fraction in lowest terms. 0.6 is repeated.

Answers

Answer:

9/10 0.9.............

Answer:

1

Step-by-step explanation:

0.666...+0.3=0.999...

1

what is a simplified fractional eqeuvilent of a teminating decimal .68

Answers

Answer:

17/25

Step-by-step explanation:

0.68 is read as "sixty-eight hundredths."

Write sixty-eight hundredths as a fraction: 68/100

Now we reduce 68/100.

68/100 = 34/50 = 17/25

Answer:

17 /25

Step-by-step explanation:

0.68

is the same as  

6

10

+

8

100

=

68

100

68

÷

4

100

÷

4

=

17

25

As 17 is a prime number we stop at this point. srry if this in not correct

If y=32 when x=8, find y when x=30.

Answers

Answer: 120

*How to solve*

Step 1: Find how many times larger 30 is than 8

30/8= 3.75

Step 2: Multiply by y

32x3.75=120


Hope this helps comment below for more questions:)

A student wrote and simplified an expression for the perimeter of the rectangle. (Using the picture provided.)

perimeter.
Explain the mistake that was made in the simplified expression. Include the correct simplified expression in your explanation. Be sure to use math vocabulary words.

Answers

Answer:

Again...

Step-by-step explanation:

Mary, Amy, and Kim babysit. Last week, Kim earned 7.50 dollars more than Mary, and Amy earned twice as much as Kim. If Mary earned 12.80 dollars, how much did Amy and Kim earn ​

Answers

Answer:

Kim earned $20.30 and Amy earned $40.60

Step-by-step explanation:

Im just built different

Answer: Kim has 20.30 Amy has 40.60

Step-by-step explanation:

Part A: Explain why the x-coordinates of the points where the graphs of the equations y = ^2−x and y = ^4x + 3 intersect are the solutions of the equation 2^−x = 4^x + 3.
Part B: Make tables to find the solution to 2^−x = 4^x + 3. Take the integer values of x only between −3 and 3.


Part C: How can you solve the equation 2^−x = 4^x + 3 graphically?

Answers

Answer:

Post a photo

Step-by-step explanation:

If f(x) = 3x + 2, what is f(5)?

Answers

Answer:

f(5)=3(5)+2 = 17

Step-by-step explanation:

A jewelry artist is selling necklaces at an art fair. It costs $135 to rent a booth at the fair. The cost of materials for each necklace is $4.50. The artist is selling the necklaces at $12 each. The inequality LaTeX: 12n > 135 + 4.50n12 n > 135 + 4.50 n represents the situation in which the artist makes a profit. Will the artist make a profit if she sells 15 necklaces? Show how you know. Be sure to indicate what the variable n represents.

Answers

Answer:

The artist will make a profit if she sells 15 necklaces. This is known because 15 is greater than 11.625 (i.e. 15 > 11.625).

Step-by-step explanation:

Note: The question contains some error. The question is therefore rewritten before is answered as follows:

A jewelry artist is selling necklace at an art fair. It costs $135 to rent a booth at the fair. The cost of material for each necklace is $4.50. The artist is selling the necklace at $12 each. The inequality 12n>135+4.50 represents the situation in which the art is making the profit. Will the artist make a profit if she sells 15 necklaces? Show how you know. Be sure to indicate what the variable n represents.

The explanation of the answer is therefore given as follows:

Given;

12n > 135 + 4.50 .................... (1)

Where n represents the number of necklace that must be sold by the artist to make a profit.

Solving for n from equation, we have:

12n > 139.50

n > 139.50 / 12

n > 11.625 ..................... (2)

Equation (2) implies that more than 11.625 necklaces must be sold by the artist to make a profit.

When the artist sells 15 necklaces, it implies that n = 15.

Since more than 11.625 necklaces must be sold by the artist to make a profit, it therefore implies that the artist will make a profit if she sells 15 necklaces. This is known because 15 is greater than 11.625 (i.e. 15 > 11.625).

Which situation can the integer -71 ​represent?
Choose the correct answer below.
A) a bird flies 71 ft above sea level
B) you climb a mountain 71 ft above sea level
C) a fish swms 71 ft below sea level

Answers

the answers C because it is below sea level and sea level is 0 so it has to be negative

Lin’s family has completed 80% of a trip. They have traveled 40 miles. How far is the trip? *

Answers

Answer:

50 miles i believe

Step-by-step explanation:

Answer:

50 miles

Step-by-step explanation:

How many terms are in the expression below?

-4x + 7 + 2x + 10

Answers

Answer:

3

Step-by-step explanation:

HELP WITH 5 and 6 pleaseeee

Answers

5. It’s C
6. Your answer is 42

At Parkview Middle School, 6th grade students were given a survey about their favorite flavor of ice
cream. The results showed that 18 students stated that strawberry was their favorite ice cream
flavor. This number represented 12% of the total number of 6th grade students who took the survey.
What was the total number of 6th grade students who took the survey?

Answers

Answer:

5

Step-by-step explanation:

i think

A runner times herself to see how long it takes her to run different distances. The table shows the runner's times (in minutes) for running several distances (in miles). Miles 1 2 3 4 6 8 10 12 Time 7 16 30 35 57 75 106 132 What is the correlation coefficient of the set of data? Round your answer to the nearest thousandth. A. 0.599 B. 0.996 C. 0.021 D. negative 0 point 997

Asap! Thanks!

Answers

Answer:

its b

Step-by-step explanation:

The correlation coefficient of the set of data is 0.9957.

What is coefficient correlation? What is the general equation of a Straight line?

Correlation coefficient measures the strength and direction of the relationship between two variables. Following is the formula to calculate the correlation coefficient -

[tex]$r =\frac{\sum\left(x_{i}-\bar{x}\right)\left(y_{i}-\bar{y}\right)}{\sqrt{\sum\left(x_{i}-\bar{x}\right)^{2} \sum\left(y_{i}-\bar{y}\right)^{2}}}[/tex]

r → correlation coefficient.

[tex]$x_{i}[/tex] → values of the x-variable in a sample.

[tex]$\bar{x}[/tex] → mean of the values of the x-variable.

[tex]$y_{i}[/tex] → values of the y-variable in a sample.

[tex]$\bar{y}[/tex] → mean of the values of the y-variable.

The general equation of a straight line is -

y = mx + c

Other possible equations of lines are -

(y - y₁) = m(x - x₁)                                {Point - slope form}(y - y₁) = (y₂ - y₁) × (x - x₁)/(x₂ - x₁)       {Two point - slope form}x/a + y/b = 1                                         {intercept form}x cos(β) + y sin(β) = L                          {Normal form}

We have a runner times herself to see how long it takes her to run different distances. The table shows the runner's times (in minutes) for running several distances (in miles) -

Miles -

1  2  3  4  6  8  10  12

Time -

7  16  30  35  57  75  106  132

The calculations are given below -

[X  -  Mₓ]

- 4.750

- 3.750

- 2.750

- 1.750

 0.250

 2.250

 4.250

 6.250

Mₓ = 5.750

[Y  -  My]

- 50.250

- 41.250

- 27.250

- 22.250

- 0.250

 17.750

 48.750

 74.750

My = 57.250

[X  -  Mₓ]²

22.562

14.062

7.562

3.062

0.062

5.062

18.062

39.062

Sum = 109.500

[Y  -  My]²

2525.062

1701.562

742.562

495.062

0.062

315.062

2376.562

5587.562

Sum = 13743.500

(X - Mₓ)(Y - My)

238.688

154.688

74.938

38.938

- 0.062

39.938

207.188

467.188

Sum = 1221.500

Finding [X] - Values -

∑ = 46Mean = 5.75∑(X - Mₓ)² = SSₓ = 109.5

Finding [Y] - Values -

∑ = 458Mean = 57.25∑(Y - My)² = SSy = 13743.5

[X] and [Y] Combined

N = 8∑(X - Mx)(Y - My) = 1221.5

R Calculation

r = ∑((X - My)(Y - Mₓ)) / √((SSₓ)(SSy))

r = 1221.5 / √((109.5)(13743.5)) = 0.9957

r = 0.9957

Therefore, the correlation coefficient of the set of data is 0.9957.

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hElp Me PLaesssssssssssssssssssssssssssss

Answers

I think it is the first one
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