Ms. Eskew's class had a class average of 89 % on their Math test. How would this be written as a ratio? A. 11:100 B. 89:100 C. 78:100 D. 100:89

Answer:

3 units down

Step-by-step explanation:

J(-1, -5) → J'(-1, -8)

The x coordinate of the vertex J is -1 and does not change in J' (it is still -1)

The y coordinate of J is -5, and for J' is -8.  This means the translation direction of 3 units down.  (-8- -5 = -3)

Answer:

25 un²

Step-by-step explanation:

Area of trapezoid =

1/2(4+6)*2 = 10 un²

Area Parallelogram =

1 x 6= 6 un²

Area triangle =

1/2(6x3) = 9 un²

Total area = 10 un² + 9 un² + 6 un² = 25 un²

Pictures below.

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-Chetan K

Answer: 16/225

Step-by-step explanation:

i did the math

Answer:

Step-by-step explanation:

The answer is 6 ≤ f since the question says no more than 6 which means it can contain 6 or fewer large fishes

Answer:

-16, 10, 16, 25, 43

Step-by-step explanation

when you have something in absolute value bars it's always going to be positive so you would make -16 regular 16; and 10 stays 10; 25 stays 25; -16 stays - 16; and then -43 turns into regular 43

Answer:

-16, 10, 16, 25, 43

Step-by-step explanation:

If it has the bars around it and its a negative number  it turns into a posotive

Answer:

To find the new population of wildcats in the park after a 35% increase, we can multiply the original population by 1.35 (which represents 100% + 35% = 135% or 1.35 as a decimal):

New population = 320 x 1.35

New population = 432

Therefore, there are now 432 wildcats in the park after the 35% increase.

Step-by-step explanation:

Answer:

432

Step-by-step explanation:

320 × 0.35 (increased by 35%)

=112 (35% of 320)

So we get

320 wildcats + 112 (increased by 35% of 320)

432

Answer:a

Step-by-step explanation:

The solution to the equation ax² + bx + c = 0 , has a graph that crosses the y-axis once and does not intersect the x-axis, then the equation has one real root and two complex conjugate roots that lie on either side of the axis of symmetry.

A quadratic equation is a second-order polynomial equation in a single variable x , ax² + bx + c=0. with a ≠ 0. Because it is a second-order polynomial equation, the fundamental theorem of algebra guarantees that it has at least one solution. The solution may be real or complex.

The roots of the quadratic equations are

x = [ -b ± √ ( b² - 4ac ) ] / ( 2a )

where ( b² - 4ac ) is the discriminant

when ( b² - 4ac ) is positive, we get two real solutions

when discriminant is zero we get just one real solution (both answers are the same)

when discriminant is negative we get a pair of complex solutions

Given data ,

Let the quadratic equation be represented as A

Now , the value of A is

If the graph of the equation ax² + bx + c = 0 crosses the y-axis once, it means that the equation has one real root. This is because when x = 0, the equation becomes:

c = 0² + 0 + c = c

Therefore, the point (0, c) is on the y-axis, which means the graph crosses the y-axis once.

If the graph does not intersect the x-axis, it means that the discriminant b² - 4ac is negative. This is because the discriminant determines the nature of the roots of a quadratic equation, and when it is negative, the roots are complex (not real) and the graph does not intersect the x-axis.

So, the solution(s) of the equation ax² + bx + c = 0 are:

x = (-b ± √(b² - 4ac)) / 2a

Since the discriminant is negative, the term inside the square root is negative, and there are no real solutions for x. Instead, the solutions are complex conjugates of the form:

x = (-b ± i√(4ac - b²)) / 2a

where i is the imaginary unit. Since the real part of these solutions is -b/2a, which is the axis of symmetry of the parabola, and the parabola does not intersect the x-axis, the complex roots will be a conjugate pair that lie on either side of the axis of symmetry.

Hence , the quadratic equation is solved

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Answer:

104 m

Step-by-step explanation:

First, find the area of the rectangle, getting 8m * 10m, or 80m

Next, add the area of the triangle, 1/2 * 6m * 8m, or 24m.

Add them together and you get a total of 24 meters.

Hopefully this helps - let me know if you have any questions!

Answer:

$352.31

Step-by-step explanation:

Appliance store sold the oven for 25% off original price.

Sale price =$281.8

Price of the oven before the discount was applied is

= 25% /100% x $281.85

= 0.25 x $281.85

= $70.46

The appliance was sold at $70.46 less than the original price

Original price

= $70.46 + $281.85

= $352.31

HOPE THIS HELPS!

Answer:

first part: -14.57

second part: No

Step-by-step explanation:

first part: 5.95*2=11.9+2.67=14.57

second part:5.95*14=83.3

                    83.3+14.57=97.87

                    No she will not because she will have $332.13 left in her account

Answer:

11

Step-by-step explanation:

30-x=3/5*25+7

30-x=12+7

30-x=19

-30   -30

-x=-11

x=11

Answer:

1. 3

2. 35/3 or 11 2/3

3. 50.53

4. 45

5. 0.05

6. D

7. 9/10

8.  2 × 2 × 3 × 7

9. 4 R 11

10. 5.76

11. B

12. 1 1/7

13. 155.18

14. 64.792

15. 5.29

Answer:

Check Description for answer

Step-by-step explanation

do it urself

Answer:

A) solution 2 is more acidic than solution 1

Step-by-step explanation:

A chemist prepares two acid solutions:

Solution 1: 3 parts sulfuric acid to 7 parts water

Ratio of sulphur to water: 3/7 (3:7)

Solution 2: 4 parts sulfuric acid to 9 parts water

Ratio of sulphur to water: 4/9 (4:9)

___________________________________________________

Part A: (using ratios to determine which solution is more acidic)

First we make same denominator, since the denominators are 9 and 7, we have to find the lcm (lowest common multiple) they both have with is 63. To do that, we must multiply the denominators with either 7 or 9.

Solution 1: Numerator (3) multiplied by 9 and then denominator (7) multiplied by 9. This makes out fraction/ratio 27/63

Solution 2: Numerator (4) multiplied by 7 and then denominator (9) multiplied by 7. This makes out fraction/ratio 28/63

Since 28/63 (or just 28) is a larger quantity than 27/63 (or just 27) this means solution 2 is more acidic than solution 1.

Mathematical Line (Not sure what you would call this lol): 28 > 27

Part B: (Let 'y' amount of sulfuric acid mix with 'x' amount of water)

Equation of solution 1: y = 3/7x

Equation of solution 2: y = 4/9x

Please find attachment for graph.

Part C: Don't have a graph, sorry! (part a. method is more preferred to find more acidic because it gives the actual acidic amount.)

Answer:

Matching sides of two or more polygons are called corresponding sides, and matching angles are called corresponding angles. If two figures are similar, then the measures of the corresponding angles are equal and the ratios of the lengths of the corresponding sides are proportional.

Step-by-step explanation:

The angles are congruent in a similar figure and the ratio of the sides is in proportion.

Two figures are said to be similar if they are the same shape. In more mathematical language, two figures are similar if their corresponding angles are congruent, and the ratios of the lengths of their corresponding sides are equal. This common ratio is called the scale factor.

Given: Two figures are similar for example say two triangles are similar then Similar triangles are triangles that have the same shape, but their sizes may vary. All equilateral triangles, squares of any side lengths are examples of similar objects. In other words, if two triangles are similar, then their corresponding angles are congruent and corresponding sides are in equal proportion. We denote the similarity of triangles here by ‘~’ symbol.

Hence, The angles are congruent in a similar figure and the ratio of the sides is in proportion.

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Answer:

Area=7.7*2=15.4m²

...........

Answer:

15.4 meters

Step-by-step explanation:

7.7 * 2

Answer:

Angle DEB: 52

Angle ADB: 30

Angle CBE: 52

Angle BEC: 38

Step-by-step explanation:

Angle DEB = 52 because triangles' angles must add up to 180. Angle ADB is 30 because it is complementary to angle BDE. Angle CBE is 52 because angle BEC is complementary to BED which is 52 degrees to BEC is 38 degrees. since the angles add up to 180, and C is 90, CBE is 52. Finally, BEC is 38 because it is complementary to BED.

Answer:

Step-by-step explanation:

Blue-28,35

Yellow-6

Answer: q=70°

Step-by-step explanation: 52°+58°+q=180°

next q=180°-110°

so q=70°

Answer:

Answer c

Step-by-step explanation:

Row one= 70

Row two=112

Row three=154

Row five=238

Row six=280

Answer c

If you find the rate of change which is 42 once you do y=mx+b or in this case y=42 times x + 28, Do that six times and find the choice that will give you the last answer of 280.

Answer:(-1,1)

Step-by-step explanation:

Answer:

Your answer is: (2,-1). I provided a picture in case you need to show your work.

The function for the points are  y = -15x - 5

From the information given, we have that;

The points are;

(1/3,0) (-2 3/4,0) and (0,-5)

Using the point-slope form of a linear equation, we have;

y - y₁ = m(x - x₁)

Such that;

Using (1/3, 0) and (0, -5), we have that the slope is;

m = (0 - (-5))/0 -1/3)

expand the bracket

= 5 / (-1/3)

= -15

Now, take any of the given points and substitute the values

Using (1/3, 0), we get;

y - 0 = -15(x - 1/3).

y = -15x - 5.

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The function for the points solved by  (1/3,0) (-2 3/4,0) and (0,-5) solved by point slope form is \(a=-15b-5\)

We have given the points:

(1/3,0) (-2 3/4,0) and (0,-5)

Using the formula of linear equation

\(a-\)\(a_{1}\)\(=x[b-b_{1}]\)                                                          

Where we will consider (1/3,0) = \(a-a_{1}\) and (0,-5) = \(b-b_{1}\)

that is 1/3 = \(a\), 0 = \(a_{1}\) and

0 = \(b\), -5 = \(b_{1}\)

\(x\) refers to the slope of line (take any variable)

Now for finding the value of \(x\),

\(x=a-a_{1}/b-b_{1}\)

inserting the values,

\(x=[0-[-5]]/[0-1/3]\\x= -15\)

Substitute the value of \(x\) in the equation

\(a-0=-15[b-1/3]\)

By simplifying the equation, we get

\(a=-15b-5\)

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Answer:

\(t=\frac{ln 1.5}{0.25}\) OR t = 1.622

Step-by-step explanation: