Danielle has the following averages in her math class: Homework Avg.: 80, Quiz Avg.: 84, Test Avg.: 74, Final Exam: 60. The teacher weights Homework at 10%, Quizzes at 30%, Tests at 40%, and the Final Exam at 20%. How many points did Danielle earn in the HOMEWORK category?

Answer:

−2<x<5

Step-by-step explanation:

x2−3x=10

x2−3x−10=10−10(Subtract 10 from both sides)

x2−3x−10=0

(x+2)(x−5)=0(Factor left side of equation)

x+2=0 or x−5=0(Set factors equal to 0)

x=−2 or x=5

Check values in the intervals to see if they work.

x<−2(Doesn't work in original inequality)

−2<x<5(Works in original inequality)

x>5(Doesn't work in original inequality)

So, the proper answer for me is −2<x<5.

Answer:

-14/3

Step-by-step explanation:

6 - (-8)       14

---------- = --------

-3 - 0         -3

[tex]\large\textsc{answer :}[/tex]

Pls refer to "calculations" !

[tex]\large\textsf{\textbf{Calculations :}}[/tex]

[tex]\boxed{\\\begin{minipage}{3cm}\xrightarrow{slope \:formula : }\\ $\displaystyle\frac{y2-y1}{x2-x1} \\ \end{minipage}}[/tex]

[tex]\boxed{\\\begin{minipage}{3cm}\xrightarrow{slope\:of\:line\::} \\ $\displaystyle\frac{-8-6}{0-(-3)} \\ \end{minipage}}[/tex]

Simplify as follows :

[tex]\boxed{\\\begin{minipage}{3cm}\xrightarrow{slope\:of\:line\:: }\\ $\displaystyle\frac{-14}{0+3}$ \end{minipage}}}[/tex]

[tex]\boxed{\\\begin{minipage}{3cm}\xrightarrow{slope\:of\:line\::}$-\displaystyle\frac{14}{3}$ \\ \end{minipage}}[/tex]

[tex]\texttt{F}\textbf{I}\textsf{N}\pmb{A}\rm{L}\:\textsf{A}\textbf{N}\texttt{S}\rm{W}\sf{E}\mathbb{R}\::[/tex]

[tex]\text{$-\displaystyle\frac{14}{3} $}[/tex]

[tex]\small{\textsc{hope\:helpful~}[/tex]

Answer:

infinite because she can write as mutcha nd on as many asshe wats

13.34 mi

from question,

perpendicular (p) = 3mi

base(b) = 13 mi

hypotenuse (h) = ?

from Pythagoras theorem,

h^2 = p^2 + b^2

h = √(3^2 + 13^2)

h = √(9+169)

h= √(178)

h= 13.34 mi

Answer:

≈ 13.3 miles

Step-by-step explanation:

a line due west and a line due south form a right triangle with the hypotenuse being the direct distance x from the house.

using Pythagoras' identity in the right triangle , then

x² = 13² + 3² = 169 + 9 = 178 ( take square root of both sides )

x = [tex]\sqrt{178}[/tex] ≈ 13.3

distance from house ≈ 13.3 miles ( to the nearest tenth )

Answer: 72 one-fourth ounce doses in 18 ounces

Step-by-step explanation:

1/4's in 1 is 4.

18x4=72

Answer:

1 ) 1 cubic centimeter = 0.000001 cubic meters

2 ) 4 cubic meters = 4000000 centimeters

3 ) 948 cubic meters = 948000 liters

Step-by-step explanation:

1 )

Conversion

1 centimeter = 0.01 meters

1 cubic centimeter

= 0.01 x 0.01 x 0.01

= 0.000001 cubic meters

72 cubic meters

= 72 x 0.000001

= 0.000072 cubic centimeters

2 )

Conversion

1 meter = 100 centimeter

1 cubic meter

= 100 x 100 x 100

= 1000000 cubic centimeters

4 cubic meters

= 4 x 1000000

= 4000000 centimeters

3 )

Conversion

1 cubic meter = 1000 liters

948 cubic meters

= 948 x 1000

= 948000 liters

Step-by-step explanation:

39500 x 103 = 4,068,500

in scientific notation, that ia 4.0685 x 10⁶

Answer:

New Years Eve I think?

Step-by-step explanation:

It kinda makes sense.

Answer:

3x5=15

5x3=15

30/2=15

15x1=15

1x15=15

15/1=15

Step-by-step explanation:

Hope it helped !
Have a great day !

answer :

$76,000

Step-by-step explanation:

reword it

4% of annual salary is 3040

.04x = 3040

x= 3040 ÷ .04

x=76,000

Answer:

5

Step-by-step explanation:

first 5 seconds the height keeps increasing

ZCAB angle is congruent to ZBAD

The triangles ΔDAB and CAB are congruent and measure of ∠BAD = measure of ∠CAB

Transformations change the size or position of shapes. Congruent shapes are identical, but may be reflected, rotated or translated. Scale factors can increase or decrease the size of a shape. Congruent Triangles simply mean the triangles that possess the same size and shape

The three sides are equal (SSS: side, side, side)

Two angles are the same and a corresponding side is the same (ASA: angle, side, angle)

Two sides are equal and the angle between the two sides is equal (SAS: side, angle, side)

A right angle, the hypotenuse and a corresponding side are equal (RHS, right angle, hypotenuse, side)

Given data ,

Let the first triangle be represented as ΔCAB

Let the second triangle be represented as ΔDAB

Now , the measure of BD = measure of BC ( given )

The measure of side AB = measure of side AB ( reflexive property )

And , the measure of ∠BAD = measure of ∠CAB

So , Two sides are equal and the angle between the two sides is equal (SAS: side, angle, side)

Therefore , the triangles are congruent by SAS theorem

Hence , the triangles are congruent

To learn more about congruent triangles click :

https://brainly.com/question/26131452

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Pierre's question : What is the probablity of flipping a head and picking a white or black marble at the same time?

The probability of flipping a head is 50%, or 1/2
The probably of randomly picking a white or black marble is (3+9)/(3+9+8) = 12/20.

So, the probability of they happening simultaneously is 1/2 x 12/20 = 12/40.

[tex]\text{If the number is x,}\\\\~~~~10\% \cdot x = 16\\\\\implies \dfrac{10x}{100} = 16\\\\\implies \dfrac x{10} = 16\\\\\implies x = 160\\\\\text{Hence,}~ 5\% \text{ of}~ 160 = \dfrac{5 \times 160}{100}=8[/tex]

Answer:

1,3

Step-by-step explanation:

I'm not too sure but 1and 3 look more like they are possible answers

Answer:

2,050 grams because

2 Kilo = 2,000 Grams

Step-by-step explanation:

Answer:

102° is the value of x

Step-by-step explanation:

A = 78°

B = x

C = 78°

D = x

All angles of parallelogram = 360°

→ A + B + C + D = 360°

→ 78° + x + 78° + x = 360°

→ 156 °+ 2x = 360°

→ 2x = 360° - 156°

→ x = 204/2

→ [ x = 102° ]

Hence, the value of x is 102°.

The value of line integral is, 73038 if the c is the given curve. C xeyz ds, c is the line segment from (0, 0, 0) to (2, 3, 4)

It is defined as the mathematical calculation by which we can sum up all the smaller parts into a unit.

The parametric equations for the line segment from (0, 0, 0) to (2, 3, 4)

x(t) = (1-t)0 + t×2 = 2t  

y(t) = (1-t)0 + t×3 = 3t

z(t) = (1-t)0 + t×4 = 4t

Finding its derivative;

x'(t) = 2

y'(t) = 3

z'(t) = 4

The line integral is given by:

[tex]\rm \int\limits_C {xe^{yz}} \, ds = \int\limits^1_0 {2te^{12t^2}} \, \sqrt{2^2+3^2+4^2} dt[/tex]

[tex]\rm ds = \sqrt{2^2+3^2+4^2} dt[/tex]

After solving the integration over the limit 0 to 1, we will get;

[tex]\rm \int\limits_C {xe^{yz}} \, ds = \dfrac{\sqrt{29}}{12} (e^{12}-1)[/tex]   or

= 73037.99 ≈ 73038

Thus, the value of line integral is, 73038 if the c is the given curve. C xeyz ds, c is the line segment from (0, 0, 0) to (2, 3, 4)

Learn more about integration here:

brainly.com/question/18125359

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Using the box-and-whisker plot, it is found that the median of the data-set is given by:

B. 87.

A box and whisker plot shows three things:

In this plot, we have that:

Hence option B is correct.

More can be learned about box-and-whisker plots at https://brainly.com/question/27743205

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Answer:

B) 87

Step-by-step explanation:

Hope it helps!

Answer:

A

Step-by-step explanation:

$38.95 for 3 m size pizzas and a salad

38.95 = 3m + 11.98

Answer:

3m+$11.98=$38.95

Step-by-step explanation:

$11.98=one salad ,

3m=The price of three medium-sized pizza &

$38.95=The price of three medium-sized pizza & a salad

Answer:

ANSWER =13,24,14 is the answer

Step-by-step explanation:

please follow

13,24,14(D)

Explanation: The

[tex] {even}^{th} [/tex]

number (i.e 22,23) can be obtained by adding 11 to its previous number. Ex. 23 = 12 + 11

XD

Ratio of girls to boys is 2:1

Ratio of boys to girls is 1:2

==========================================================

Explanation:

2/3 of the class are girls. If the class had 3 people, then 2 of them are girls. The remaining 3-2 = 1 person is a boy.

The ratio of girls to boys has us list the number of girls (2) followed by the number of boys (1). Separate the values with a colon. That's how we end up with 2:1

The ratio of boys to girls will have us flip that previous ratio to get 1:2

The order is important when it comes to forming ratios.

Answer:

D. 287.6 cm²

Step-by-step explanation:

» Concept

The lateral surface area of a 3D figure is the surface area of the solid, excluding the bases. For a cylinder, the bases are the two circles on top and bottom. The formula to find the LSA of a cylinder is 2πrh, where r = radius of the circle and h = height.

» Application

We are asked to find the lateral surface area of the cylinder given the radius as 4.2 cm and the height as 10.9 cm.

» Solution

Now, as you can see, the closest answer choice to 287.4984 is D. 287.6 cm².