please find the value of a

Please Find The Value Of A

Answers

Answer 1

Answer:

I cant lp because

i'm on the school computer so sorry. <:(

so I cant see your Step-by-step explanation:


Related Questions

Determine the equation of the graph in its final position if the graph of y = 2X
is translated 2 units to the right and then 7 units upward.
1) y = 2x+7+ 2
2) y = 2X-2 + 7
3) y = 2X+2+7
O4) y = 2x-7, + 2

Answers

Answer:1

Step-by-step explanation:

EI Sr. López necesita una escalera para podar sus árboles de naranjas. Le dice al herrero que necesita alcanzar una altura de 3 m sin estirar los brazos. El herrero sabe que el Sr. López mide 1.70 m, y sabe que por seguridad, una persona no debe subir más arriba del penúltimo peldaño de la escalera. El herrero le vende una escalera como la que se muestra.

Answers

la escalera tiene que ser de 2.30mts

Please helppp, worth 35!!!

Answers

Answer:

9.42

Step-by-step explanation:

Hey There!

The first step of this problem is to find the formula for arc length

[tex]arc-length=2\pi r(\frac{0}{360} )[/tex]

r=raduis

0 = angle

now we just plug in the values

[tex]arc-length=2\pi 10\frac{54}{360} \\2\pi =6.283185307\\6.283185307x10=62.83185307\\62.83185307\frac{54}{360}=9.424777961[/tex]

so the arc length equals 9.424777961

the last step is to round to the nearest hundreth

so your final answer is 9.42

help me on math pls plss I'm stuck agian:(((((​

Answers

Answer:

the answer to a is 25, im unsure what B is.

Step-by-step explanation:

hope this helps!!!

Show that n(n – 1)(n + 1) + 6n ≡ n3 + 5n

Answers

Answer:

Explanation:

n(n - 1)(n + 1) + 6n = n^3 + 5n
n(n^2 - 1) + 6n = n^3 + 5n
n^3 - n + 6n = n^3 + 5n
n^3 + 5n = n^3 + 5n (proven)

(-3, 3), (1, 1), (0 -2), (1, -4), (5, -1) domain and range
is it a function plz help i aint no good at math

Answers

Answer:

not it is not aa function

Step-by-step explanation:

WILL GIVE BRAINYEST!!! PLS HELP!!!

Mr. Hudson walked 12 miles in 3 hours. At this rate,
how far will he walk in 5 hours? Write your answer in
a complete sentence AND show your work.

Answers

First you are going to want to find the rate per hour (12/3=4) so multiply 4 x 5 = 20
Mr. Hudson is going to walk 20 miles in 5 hours

Mr. Tuyen uses
7/8
of a tank of gas each week to drive to and from his job.

How many tanks of gas does Mr. Tuyen use in 7 weeks? Enter your answer as a fraction and as a mixed number.

Answers

Answer:

Mr.Tuyen uses 3 1/8 tanks of gas in 5 weeks. The improper fraction version would be 25/8 if that is what you're looking for

Can somebody solve this question for me it would be so helpful I will give brainliest first it needs to be rounded to the nearest 10th

Answers

Answer:

F. 824.8 ft³

Step-by-step explanation:

To find the volume of a cube, you want to multiply the length by width by height.

l = 8.2

w = 9.4

h = 10.7

l • w • h

8.2  • 9.4 • 10.7

= 824.756

Round to the nearest tenth.

824.8 ft³

Hope this helps!

Plz help ASAP 20 Points Determine the equation of circle A.
(x - 1)2 + (y + 2)2 = 9
(x + 1)2 + (y-2)2 = 9
(x-1)2 + (y + 2)2 = 3
(x + 1)2 + (y-2) = 3

Answers

C the answer to your question is C

Answer:

the answer is c

Step-by-step explanation:

your equation is to solve the circle so A could not be the answer B/c it can't be 9.the answer is c or d. But d can't give you 3 if you solve it. so the answer is C

Kevin correctly answered 75% of 32 test questions. How many questions did Kevin answer correctly? How many more questions would Kevin have had to answer correctly to get more than 80% correct?

Answers

Answer:

At least 26 questions to get around an 82% not 25 because that equals 78%

Step-by-step explanation:

Answer:

Kevin answered 24 questions correctly.

Kevin would have to answer 25.6 questions correctly to get more than 80%.

which expression equals the sum 1+2+3+4+5+6..

Answers

Answer:

7 * 3

7+7+7

3+3+3+3+3+3+3

2+2+2+2+2+2+2+2+2+2+1

(2*10)+1

(10*1)+11....

...and so on

Step-by-step explanation:

I don't know what type of expression you are looking for

Solve for m. Write your answer as an inequality expression using the correct symbol.

m + 7 ≥ 20
PLZ help

Answers

Answer: m ≥ 13

m + 7 ≥ 20

Step-by-step explanation:

you basically subract 7 from 20 and 7

7-7 will cancel each other out 20-7 will give you = 13

m ≥ 13 is your answer

You randomly choose one game piece. Find the theoretical probability of each event. Reduce the fraction in lowest terms and
indicate the percentage rounded to the nearest hundredth, if necessary.

Answers

Answer:

Yellow= 1/2 or 50%chance

Red= 1/5 or 20% chance

Blue= 1/5 or 20% chance

Green= 1/10 or 10% chance

Step-by-step explanation:

There are 10 game pieces

5 are yellow

2 are red

2 are blue

And 1 is green

5/10=1/2=50%

2/10=1/5=20%

2/10=1/5=20%

1/10=10%

Add these up and you get 10/10 or 100%

Hope this helps and don't forget to follow!

7. Sketch the graph of f(x) = 2(x - 1.5)2 + 3, then state the domain and range of the function (show all your
work). (4 points)
8. Determine the value of a given that (7, 6) satisfies the quadratic function f(x) = a(x – 5)2 +6. (Show all your
work). (2 points)

Answers

9514 1404 393

Answer:

  7. D: (-∞, ∞); R: [3, ∞); see attached for a graph (red)

  8. a=0; see attached for a graph

Step-by-step explanation:

7. The function is a polynomial, so its domain is all real numbers.

The parabola opens upward. It has a minimum value of 3. The range is y ≥ 3.

__

8. Putting the given point coordinates in the equation, we can solve for a.

  f(7) = 6

  6 = a(7 -5)² +6

  0 = a(2²)

  0 = a

The value of a is zero.

(The given point has the same y-value as the vertex, but is not the vertex. The function can only go through that point if it is a horizontal line (not a parabola).) The attachment shows a graph.

Tomás is gathering data about the sleeping habits of high school students. So far, he has completed 3 different surveys, each with 70 respondents.

What should Tomás expect as he continues his data-gathering process?

As the number of surveys increases, the mean of the sample means will approach ______, and the means will be ___________.
70 Points

Answers

Answer:

The population mean

Normally distributed

Please give me brainliest, I really need it.

a)As the number of surveys increases, the mean of the sample means will approach the population mean.

b)Means will be normally distributed.

What is a normal distribution?

A normal distribution is a probability distribution that is symmetric about the mean, and data near the mean are more frequent than data far from the mean.

As the number of surveys increases, we will have more data.

So, the mean of the sample means will approach the population mean.

Means will be normally distributed because each survey has the same number of respondents.

Thus, a)as the number of surveys increases, the mean of the sample means will approach the population mean.

b)Means will be normally distributed.

To get more about normal distribution visit:

https://brainly.com/question/4079902

PLS HELP
i said 45 but it was marked incorrect, im super confused

Answers

Answer:

60

Step-by-step explanation:

trangles always equal 180 degrees on the inside angles

180-75-45 = 60

WILL MARK BRANL:IEST NO FAKE ANSWERS I NEED ASAP

Answers

Answer:

(-5, 9)

Step-by-step explanation:

The formula for the volume of a cone is V = 1/3 πr^2 h. Which part of the formula represents the area of the base?

Answers

πr^2 - the base of a cone is a circle, so use the equation for area of a circle

21.8% all registered doctors are female if there were 51800 female doctors what is the total doctors that registered

Answers

Answer:

Step-by-step explanation:

21.8% of x = 51,800

0.218x =51,800

x= 51,800/0.218 = 237,615

Flying against the wind, an alrplane travels 4700 kilometers in 5 hours. Flying with the wind, the same plane travels 9520 kilometers in 7 hours. What is the rate of the plane in still air and what is the rate of the wind?​

Answers

Answer:

i think this

Step-by-step explanation:

Let Va = the velocity of the airplane

Let Vw = the velocity of the wind

When flying with the wind:

(Va+Vw)*(4 hours) = 4000

4Va + 4Vw = 4000

4Vw = 4000 - 4Va

Vw = 1000 - Va

When flying against the wind:

(Va-Vw)*(7 hours) = 4200 km

7Va - 7Vw = 4200

Substitute 1000-Va for Vw and solve for Va:

7Va - 7(1000-Va) = 4200

7Va -7000 + 7Va = 4200

14Va = 11200

Va = 800 km/hr

Rate of wind:

Vw = 1000 - Va = 1000 - 800 = 200 km/hour

In isosceles triangle WXY, XY is 13 inches in length and WY is 10 inches. What is the length of XZ? answer asap please

Answers

Answer:  12 inches

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

Explanation:

Notice the double tickmarks on segments WZ and ZY. This tells us the two segments are the same length. Let's say they are m units long, where m is a placeholder for a positive number.

That would mean m+m = 2m represents the length of segment WY, but that's equal to 10 as the diagram shows. We have 2m = 10 lead to m = 5 after dividing both sides by 2.

We've shown that WZ and ZY are 5 units long each. In short, we just cut that length of 10 in half.

-----------------------------------

Let's focus on triangle XYZ. This is a right triangle with legs XZ = unknown and ZY = 5. The hypotenuse is XY = 13.

We'll use the pythagorean theorem to find XZ

a^2 + b^2 = c^2

(XZ)^2 + (ZY)^2 = (XY)^2

(XZ)^2 + (5)^2 = (13)^2

(XZ)^2 + 25 = 169

(XZ)^2 = 169-25

(XZ)^2 = 144

XZ = sqrt(144)

XZ = 12

Segment XZ is 12 inches long.

a line has a slope of -3 and a y-intercept of 5. write the equation of the line in slope-intercept form and explain how you would use the slope and y-intercept to graph the equation?

Answers

Answer:

y = -3x + 5

Step-by-step explanation:

Since the y-intercept occurs at the point (0,5), you can use that and the point slope equation to find the equation.

This looks like y - 5 = -3 (x - 0);

Solving for y, you get y = -3x + 5;

To graph this equation you would put one point at (0,5), then use the slope to count down three and to the left one to find other points, or you could just plug in numbers for x to find their corresponding y values and plot it like that.

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

please help me i really need help please

Answers

Answer:

90+42+x = 180

132+x=180

x=180-132

x=48

Answer:

48 DEGREES

Step-by-step explanation:

First you need to find the other two angles : 42 + 90 = 132 ( the 90 comes from the little square like shape on the other angle).

So x = 180 - 132 = 48 ( we use 180 because it is the sum of interior angles of a triangle.

HOPE THIS HELPED

20 = 2(n – 3) solve.

Answers

If I’m not mistaken the answer will be 15.

explanation:

20 = 2(n - 3)

•first distribute
2xn= 2n
2x-3= -10

20 = 2n - 10

•add 10 to both sides (since the sign is negative do the opposite.)

30 = 2n

•divide both sides by 2.

Answer: 15

6) A packet of 1350 chocolates were distributed among 3 sections A, B, C of class VI in the ratio 6: 5:4. Find each section's share
A)510, 460, 350
B)540, 450, 360
C)520, 440, 335
D)500, 400, 450

Answers

Answer:

its a or d

Step-by-step explanation:

a or d but ptibably a

In a lab experiment, 130 bacteria are placed in a petri dish. The conditions are such
that the number of bacteria is able to double every 8 hours. How many bacteria
would there be after 21 hours, to the nearest whole number?

Answers

Answer:

y = 802

Step-by-step explanation:

can someone tell me how to do this I keep getting 3.14 over x​

Answers

Answer:

60.46%

Step-by-step explanation:

Question: On this dartboard, the circle with 1-m radius is inscribed in an equilateral triangle. Find the probability that a dart that hits the board lands in the circular region. Justify your answer.

Let's start by finding the length of one of the sides of the equilateral triangle. We can do this by creating a 30-60-90 triangle from the radius of the inscribed circle.

I attached an image of what this should look like.

Solving for the length of half of the base of the equilateral triangle gives us 1√3. To get the length of the entire base of the triangle, we will double this value:

s = 2√3

The area of an equilateral triangle is [tex]\displaystyle A=\frac{s^2 \sqrt{3} }{4}[/tex].

We can substitute the known value of s (side length) into the formula and solve for A.

[tex]\displaystyle A_t=\frac{(2\sqrt{3})^2\cdot \sqrt{3} }{4}[/tex] [tex]\displaystyle A_t=\frac{4(3) \cdot \sqrt{3} }{4}[/tex] [tex]\displaystyle A_t=3\sqrt{3}[/tex]

The area of the equilateral triangle is 3√3.

Now, let's solve for the area of the inscribed circle. The formula for the area of a circle is [tex]\displaystyle A= \pi r^2[/tex].

We know the radius of the circle is 1, so let's substitute 1 for r:

[tex]A_c= \pi (1)^2[/tex] [tex]A_c=\pi[/tex]  

The area of the inscribed circle is π.

To find the probability of the dart hitting a specific area on the dartboard, we will divide the desired area by the total area of the dartboard.

[tex]\displaystyle P=\frac{\text{Desired area}}{\text{Total area}}[/tex] [tex]\displaystyle P=\frac{\pi}{3\sqrt{3} }[/tex] [tex]\displaystyle P=\frac{\pi \sqrt{3} }{9}[/tex] [tex]P \approx 0.60459978[/tex]

The probability that a dart that hits the board lands in the circular region is about 60.46%.

Tina bought 3.2 pounds of grapes. The grapes cost $1.45 per pound. How much did she pay for the grapes? ​

Answers

Answer:

4.64

Step-by-step explanation:

If you do 20% of 1.45, you would get 0.29, add that by 1.45 plus 1.45 plus 1.45, and you get 4.64. Hope this helps!

Answer:

$4.64

Step-by-step explanation:

3 x 1.45 = 4.35

1.45 x .2 = .29

4.35 +.29 = 4.64

26.) In a midnight sale in a mall, Charice bought a
shirt with 40% discount. How much did she pay if the
original price is Php 200?
A. PhP 80.00
C. PhP 140.00
B. PhP 120.00
D. PhP 160.00
I will give Brainliest ​

Answers

Answer:

B. 120.00

Step-by-step explanation:

200-40%=120

Answer:

the answer is very easy i calculated this so if my calculations are correct it will be PHP 160.00

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