Scientist Dr. Sparks counted the flashes of lightning he saw around his home town for three months. He saw 25 in June, 51 in July, and 62 in August. A. What is the average number a month? B. What is the average number he saw in a day? If you help, please answer quickly after this is posted!!!

Answer:

answer is C. 19%.

sjjsnsmsmsmamsmsjsk

Answer:

Explanation:

y= x-4

is in the slope-intercept form for a linear equation,

y= mx+b

, where

m

is the slope and

b

is the y-intercept. In the given equation,

m= 1

and

b= 4

.

To make a table to graph, give various values to

x

and solve for

y

.

Ordered Pairs

x......y

4...8

2....6

0.......4

2......2

4......0

Plot each ordered pair and draw a straight line through the points.

graph{y=-x-4 [-14.24, 14.23, -7.12, 7.12]}

Answer:

AB || YZ, BC || XY, AC || XZ

Answer:

3/4 in 1/5 of 60 sec

1/5*60=12

3/4 in 12 seconds

3/4*5=15/4=3 3/4

He multiplied 3/4 by 1/5 instead of by its reciprocal , 5.

12/4=3

3 mph

Answer:

3/4 in 1/5 of 60 sec

1/5*60=12

3/4 in 12 seconds

3/4*5=15/4=3 3/4

Step-by-step explanation:

Answer: 2 one number 2

Step-by-step explanation:

It's is number 2

The required solution of the quadratic equation  (4y - 3)² = 72 is y = 3 ± 6√2/4. Option A is correct.

What is simplification?

Simplification involves applying rules of arithmetic and algebra to remove unnecessary terms, factors, or operations from an expression.

Here,
Given expression, (4y - 3)² = 72

Simplifying the above expression:
(4y - 3)² = 72

4y - 3 = ±√72
4y - 3 = ±6√2
y = 3 ± 6√2/4

Thus, the required solution of the quadratic equation  (4y - 3)² = 72 is y = 3 ± 6√2/4. Option A is correct.

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Answer:

its A on e2020

Step-by-step explanation:

The actual price is $46.73 lower than the expected price.

The actual price is $46.73 lower than the expected price.

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications.

For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

Now, The Formula for Consumer Price Index is,

⇒ [tex]CPI = C_{t} / C_{0}[/tex]

Where, CPI = consumer price index in the current period

Ct = expected cost in current period

C₀ =cost in the base period

Now, It is given that;

Price in base period in 1983 is, C₀= $78.75

The actual cost of the microwave oven = $92.66

Consumer Price Index= 177

So, We Can expected price of microwave oven in the current period

Ct = CPI * C₀ /100

    = 177 × 78.75/100

    = $139.39

Thus, Difference between the actual price and expected price is,

= 139.39 - 92.66

= $46.73

Therefore, The actual price is $46.73 lower than the expected price.

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Answer:

Step-by-step explanation:

The slope of the trend line in the given scatter plot, using the two chosen points (236, 2855) and (248, 2865) is: 0.83.

The slope of a trend line = change in y/change in x.

Given the scatter plot, we can choose the following points, which we would use in finding the slope of the trend line:

(236, 2855) and (248, 2865).

Slope = (2865 - 2855)/(248 - 236)

Slope = 10/12

Slope = 0.83

Therefore, the slope of the trend line in the given scatter plot, using the two chosen points (236, 2855) and (248, 2865) is: 0.83.

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Answer:

The Answer is C

Step-by-step explanation:

This applies to your exam.

Answer:

C

Step-by-step explanation:

This is correct on edge 2020.

Answer:-0.00714

Step-by-step explanation: STEP

1

:

1

Simplify —

5

Equation at the end of step

1

:

1

0 - — ÷ 7 ÷ 4

5

STEP

2

:

1

Divide — by 7

5

Equation at the end of step

2

:

1

0 - —— ÷ 4

35

STEP

3

:

1

Divide —— by 4

35

Equation at the end of step

3

:

1

0 - ———

140

STEP

4

:

Final result :

-1

——— = -0.00714

140

Step-by-step explanation:

We know that

a=1 and b= -2

{3*1-4*(-2)+2} .{5*1+6}

= (13-11)

=2

Answer:

143

Step-by-step explanation:

(3a – 4b + 2) × (5a + 6)

a = 1 ; b = - 2

(3(1) – 4(-2) + 2) × (5(1) + 6)

Inputting the values of a and b

(3 - (-8) + 2) * (5 + 6)

(3 + 8 + 2) * (11)

13 * 11

= 143

Answer:

Its D i got it right

Answer:

the answer is d if u look u will see that h is the

Step-by-step explanation:

Answer:

if you have a specific math problem i can help you with it!

Step-by-step explanation:

you essentially translate the words into math. for example if the problem says something like "he has 5 more pieces of candy than her" you would set a variable, in this case "x," and set it up like this.

since "her" is the original amount, we'd do it like this:

her = x

he = x+5

then, we'd figure out what these values have to equal to. let's say there are 9 total pieces of candy. so this is how we'd do it:

(x)+(x+5)=9

now we solve:

2x+5=9

2x=9-5

2x=4

x=2

hope this somewhat helped! if you have more questions, feel free to ask me!

Given:

Frequency distribution table.

Mode = 34.5

To find:

The value of missing frequency 'f'.

Solution:

Formula for mode is

[tex]Mode=l+\dfrac{f_1-f_0}{2f_1-f_0-f_2}\times h[/tex]

where, l is lower limit of modal class, [tex]f_1[/tex] is frequency of modal class, [tex]f_0[/tex] is frequency of preceding class, [tex]f_2[/tex] is frequency of succeeding class, h is class size.

Mode is 34.5, so the modal class is 30-45. So,

[tex]l=30,f_1=f,f_0=7, f_2=3,h=45-30=15[/tex]

Putting these values in the above formula, we get

[tex]34.5=30+\dfrac{f-7}{2f-7-3}\times 15[/tex]

[tex]34.5-30=\dfrac{f-7}{2f-10}\times 15[/tex]

[tex]4.5=\dfrac{f-7}{2f-10}\times 15[/tex]

Divide both sides by 15.

[tex]\dfrac{4.5}{15}=\dfrac{f-7}{2f-10}[/tex]

[tex]0.3=\dfrac{f-7}{2f-10}[/tex]

[tex]0.3(2f-10)=f-7[/tex]

[tex]0.6f-3=f-7[/tex]

Separating variable terms, we get

[tex]0.6f-f=3-7[/tex]

[tex]-0.4f=-4[/tex]

Divide both sides by -0.4.

[tex]f=\dfrac{-4}{-0.4}[/tex]

[tex]f=10[/tex]

Therefore, the value of f is 10.

Answer:

A special relationship where each input has a single output. It is often written as "f(x)" where x is the input value. Example: f(x) = x/12 ("f of x equals x divided by 12")

Step-by-step explanation:

Answer:

This Problem has no answer

Step-by-step explanation:

if you have 1 variable you at least 2 facts that aren't the same to solve for the variable

Answer:

This problem does not have a definite answers

It can have infinite answers

Answer: D

Step-by-step explanation: Correct me if I'm wrong.....

Answer:

1

Step-by-step explanation:

Answer:

The image triangle ΔD'L'W' after the dilation by a scale factor of 1/2 will have the vertices:

`The figure of the dilated image is attached below.

Step-by-step explanation:

Given the triangle ΔDLW withe the vertices

As the scale factor 1/2 < 0, thus the image triangle will be smaller than the original triangle.

The rule of dilation is given by

Dilation: (x, y)  →  (1/2x, 1/2y), centered at (0, 0)

D(0, 2)  → D' (1/2x, 1/2y) → D' (1/2(0), 1/2(2)) = D' (0, 1)

L(1, 5)  → L'(1/2x, 1/2y) →  L'(1/2(1), 1/2(5)) = L' (1/2, 5/2)

W(5, 4)  → W'(1/2x, 1/2y) →  W'(1/2(5), 1/2(4)) = W' (5/2, 2)

Therefore, the image triangle ΔD'L'W' after the dilation by a scale factor of 1/2 will have the vertices:

`The figure of the dilated image is attached below.

Answer:

placebo.

Step-by-step explanation:

Answer:

(a.) B: 8,000

(b.) C: 800

(c.) A. 10 times

Step-by-step explanation:

8762 has 3 digits after the 8. 8,000 has 3 digits after the 8

851 has 2 digits after the 8. 800 has 2 digits after the 8.

8,000 ÷ 800 = 10

Another way to do it is: 8000 has 3 zeros and 800 has 2 zeros.

3 - 2 = 1. 10 has 1 zero.

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

Answer:

dude

if 3 = 15

5x = 5.5=25

Step-by-step explanation:

hope it helps

Answer:

SA= 84 cm^2

Step-by-step explanation:

So first locate all the surfaces

we got 5 sides in total

Now calculate each one

Lets start with the 2 triangles

so formula for area of triangl is 1/2(b*h)

So in this case it’s 6

Now there are 2 identical triangles

So Times the 6 by 2

You’ll get 12

Thats 2 sides

Now for the side with the rectangle of 5cm and 6cm

Area of rectangle is 5*6=30

That would onay be 1 side

Now for the bottom of the prisim which is the side with 4cm and 6cm

Same rectangle so multiply

4*6=24

Thats another side down

The last side is on the left with the back not visible. The two dimensions are 6 and 3

Now multiply 6*3

18

Now add up your total

18+24+12+30=84

So 84 cm^2 OR 84 square centimeters

Answer:

84 [tex]cm^{2}[/tex]

Step-by-step explanation:

To find the surface area of a prism, one will have to find the area of each of the sides of the prism, then add the areas up. First, find the dimensions of each of the sides

Front; 5 x 6

Front triangle; 3 x 4

Back triangle; 3 x 4

Bottom; 4 x 6

Back; 3 x 6

The front is a rectangle, hence one has to [tex]base * height[/tex] to find the area;

5 x 6

= 30

The front triangle is a triangle, hence on has to do [tex]\frac{base * height}{2}[/tex] to find the area;

[tex]\frac{3*4}{2}[/tex]

= 6

The back triangle is a triangle, hence on has to do [tex]\frac{base * height}{2}[/tex] to find the area;

[tex]\frac{3*4}{2}[/tex]

= 6

The back is a rectangle, so one has to do [tex]base * height[/tex] to find the area;

4 * 6

= 24

The bottom is a rectangle,  o one has to do [tex]base * height[/tex] to find the area;

3 * 6

= 18

Noe one has to add up all the areas to find the total surface area;

Front + Front_triangle + Back_triangle + Bottom + Back

30 + 6 + 6 + 24 + 18

= 84

Answer:

a)y^3

o)7a^2

I know only that

Answer:well we need to know how mmch tim has so like

x?+2 is amy

x?+2*5 is sarah

Step-by-step explanation:

Answer:

x = 1/6

Step-by-step explanation:

Rewrite the equation to get 5/x = 30.  Multiply x on both sides to get 5 = 30x.  Then divide 30 on both sides to get your x value which is 1/6.

Answer:

x= 1/6

Step-by-step explanation:

multiply both sides by x

divide both sides by 30

simplify 5/30 to 1/6

Answer:

-3

Step-by-step explanation:

y = mx + b

m represents the slope, and on this equation, instead of m we have -3. So -3 is the slope

Answer:

Slope m = -3

General Formulas and Concepts:

Algebra I

Slope-Intercept Form: y = mx + b

Step-by-step explanation:

Step 1: Define

y = -3x + 1

Step 2: Break Function

Identify Parts

Slope m = -3

y-intercept b = 1