What do you need to know?

What Do You Need To Know?

Answers

Answer 1

9514 1404 393

Answer:

  A.  One

Step-by-step explanation:

Descarte's rule of signs is used to answer this question. The signs of the coefficients are ...

  + + + -

There is one sign change, hence one positive real root.


Related Questions

Find the slope of the line that passes through A(0,−5) and B(3,−4)

Answers

Answer:

1/3

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-4-(-5))/(3-0)

m=(-4+5)/3

m=1/3

I need help im confused!!!

What is m∠A and what is m∠B?

Answers

Answer:

m∠A = 79°m∠B = 112°

Step-by-step explanation:

We have cyclic quadrilateral as all vertexes are on the circle.

As per property of cyclic quadrilateral, each pair of opposite angles are supplementary.

As we know supplementary angles add up to 180°.

m∠A + m∠C = 180° ⇒ m∠A = 180° - 101° = 79°m∠B + m∠D = 180° ⇒m∠B =  180° - 68° = 112°

A man runs at a speed of 8 m/s for 15 seconds. Calculate how far it travles.

Answers

Answer:120 meters

Step-by-step explanation:

8 × 15

Answer:

120 m

Step-by-step explanation:

Speed = 8 m/s

Distance traveled  in 1 sec = 8 m

Distance traveled in 15 sec = 8 * 15 = 120 m

On Tuesday, the mailman delivers three checks for $5 and two bills for $2 each. If you had a starting balance of $25, what is the ending balance? If you find out the answer please explain

Answers

Answer:

6

Step-by-step explanation:

because 3 checks for 5 bucks 3x5=15  two bill for 2 dollars each 15+4=19

25-19=6

It would be 44 because 3 checks for $5 would be 15 and 2 bills for $2 would be 4 and 19+25=44 :)

Salesclerks at a store are giving away candles. There are 12 candles on a tray. Three are white and two are red. The rest are green or blue. When choosing a candle at random from the tray, a customer is as likely as not to select a green candle. What tis the likelihood that the customer will select a blue candle? Tell whether it is impossible, unlikely, equally likely as not or certain. Explain your answer.

Answers

Answer:

one blue candle. 1/12 probability.

Step-by-step explanation:

if they are as likely as not to select a green candle, then there are 6 green ones. so now we have accounted for 11 if I am right, so only one can be blue

It is equally likely as not that the customer will select a blue candle.

What is probability?

It is the chance of an event to occur from a total number of outcomes.

The formula for probability is given as:

Probability = Number of required events / Total number of outcomes.

Example:

The probability of getting a head in tossing a coin.

P(H) = 1/2

We have,

Let the number of green candles on the tray be G, and the number of blue candles be B.

We know that there are 12 candles in total on the tray, so:

G + B = 12 (total number of green and blue candles is 12)

G/(G+B) = 1/2 (as the probability of selecting a green candle is equal to the probability of selecting a non-green candle)

We can use these two equations to solve for G and B:

G + B = 12

G = (12 - B)

Substituting into the second equation:

(12 - B) / (12 - B + B) = 1/2

(12 - B) / 12 = 1/2

12 - B = 6

B = 6

So there are 6 blue candles on the tray.

Since there are 12 candles in total, and 6 of them are blue, the probability of selecting a blue candle at random is:

P(selecting blue) = B / (G + B) = 6 / 12 = 1/2

Therefore,

It is equally likely as not that the customer will select a blue candle.

This means that the probability of selecting a blue candle is 50-50, which is neither impossible nor certain, but rather equally likely as selecting a green candle.

Learn more about probability here:

https://brainly.com/question/14099682

#SPJ3

Find f(1)

f(x)=9x+1

f(1)=

Answers

Answer:

f(1)=10

Step-by-step explanation:

f(x)=9x+1

Substitute all values of x as 1

f(1)=9(1)+1

f(1)=9+1

f(1)=10

I hope this helps!

Answer:

Step-by-step explanation:

Given

f(x) = 9x + 1f(1) = 9*1 + 1      = 9+1      =10hope it helps :)

Find the numerical value of the log expression. \log a=7\hspace{15px} \log b=10\hspace{15px} \log c=3 loga=7logb=10logc=3 \log \frac{a^8c^2}{b^3} log b 3 a 8 c 2 ​

Answers

Answer:

  32

Step-by-step explanation:

  [tex]\log a=7\hspace{15px} \log b=10\hspace{15px} \log c=3\\\\ \log \dfrac{a^8c^2}{b^3}=8\log{a}+2\log{c}-3\log{b}=(8)(7)+(2)(3)-(3)(10)\\\\=56+6-30=\boxed{32}[/tex]

__

The applicable rules of logarithms are ...

  log(ab/c) = log(a) +log(b) -log(c)

  log(a^b) = b·log(a)

Elena raised $84 to support the animal shelter, which is 30% of her fundraising goal. What is Elena's fundraising goal

Answers

$280 is her goal. Good luck and have a great day!

What is the slope of a line that goes through the points (10, -2) and (5,-5)? m =
Y1-Y2
11-12

Answers

Answer:

m = 3/5

Step-by-step explanation:

use the formula so m = -5 - -2 / 5 - 10 , so m = -5+2 / -5

m = -3/-5 so m = 3/5

A pollster surveys 80 people to determine whether they will vote for Seth Gleason for mayor. 42 out of 80 say yes. What is the experimental probability that the next person surveyed will say he or she plans to vote for Seth Gleason?

Answers

Answer:

42 out of 80

Step-by-step explanation:

Given function:

surveys 80 people42 votedto find the experimental probability that the next person surveyed say yes or no..

Thinks:

42 out of 80 means 42:80 in ratio formif 42:80  that they’ll vote for Seth Gleason then this means that the next person have 42:80 chance to vote for Seth Gleaso...

Forms:

0.525 42/80.. simplify form=21/40. 52.5%

Therefore, the percentage the next person would vote for Seth Gleason is a percentage of 52.5% and also have a ratio of 42:80.

a rectangle has a area of 24 square untis and a side length of 3/4 units. find the other side of the rectangle.

Answers

Area = length x width
24 = 3/4w
Divide both sides by 3/4
32 = w

The other side is 32 units

8th grade math pls help and show work i’ll give brainliest

Answers

Answer:

B) -8

Step-by-step explanation:

Slope is rise/run, or the difference in y over the difference in x, so to solve this:

Take the y value of one of the points and subtract it from the other, and divide it by the same thing with the x values

[tex]\frac{9-1}{6-7} =\frac{8}{-1} =-8[/tex]

help me please i have to pass it

Answers

Answer:

<

_

Step-by-step explanation:

Just some basic logic.

H < 46 It’s the 4th option
_

Pythagorean Theorem is annoying..​

Answers

Answer:

c = 10

Step-by-step explanation:

8² + 6² = c²

64 + 36 = c

64 + 36 = 100

[tex]\sqrt{100\\[/tex] = 10

Hope this helps :)

Plz help don’t know

Answers

The horse would be the better idea!

someone pls lend a hand pls

Answers

Answer:

136

Step-by-step explanation:

10x5=50

10-6=4

4x8x.5=16

10x7=70

50+16+70=136

Brianna's parents built a swimming pool in the backyard. Brianna says that the distance around the pool is 120 feet.
40 Ft
2011
1. Is she correct? Explain why or why not. (Your explanation needs to include the following: If she is correct, show what she
did to find the distance around the pool. If she is not correct, find the correct distance, showing all work.)
2. Explain (using words this time) how Brianna would determine the distance around the pool so that her parents would
know how many feet of stone to buy for the edging around the pool.

Answers

No, Brianna is not correct.
The distance around the pool is 131.4 ft

Step by step explanation:

1) Semi circle with a diameter equal to the side opposite it, 20 ft.
Find the length of half the circle:
Circumference of semi-circle = (1/2)(πd)
Where:
π = 3.14
d = 20 ft.
Circumference of semi-circle = (1/2)(3.14)(20 ft) = 31.4 ft.
2) Vertical lengths from the endpoint of semi-circle to the endpoints of horizontal lengths, 40 ft each ⇒ 2 × 40 ft. = 80 ft.
3.) Horizontal length at 20 ft.
Add the semi-circle, vertical, and horizontal lengths:
Distance around the pool = 31.4 ft + 80 ft. + 20 ft.
Distance around the pool = 131.4 ft.

No, Brianna is not correct.

The distance around the pool is 131.4 ft

What is perimeter of semicircle?

The perimeter of a semicircle is the sum of half of the circumference of the circle and its diameter. As the perimeter of a circle is 2πr or πd. So, the perimeter of a semicircle is 1/2 (πd) + d or πr + 2r, where r is the radius, and, 2r=d is diameter.

P=(πr + 2r)

here, we have,

1) Semi circle with a diameter equal to the side opposite it, 20 ft.

Find the length of half the circle:

Circumference of semi-circle = (1/2)(πd)

Where:

π = 3.14

d = 20 ft.

Circumference of semi-circle = (1/2)(3.14)(20 ft) = 31.4 ft.

2) Vertical lengths from the endpoint of semi-circle to the endpoints of horizontal lengths, 40 ft each ⇒ 2 × 40 ft. = 80 ft.

3.) Horizontal length at 20 ft.

Add the semi-circle, vertical, and horizontal lengths:

Distance around the pool = 31.4 ft + 80 ft. + 20 ft.

Distance around the pool = 131.4 ft.

To learn more on perimeter of semi-circle click:

brainly.com/question/29140521

#SPJ2

Can anyone help me with this question?

Answers

Answer:

y=-3x-1

Step-by-step explanation:

y-y1=m(x-x1)

y-2=-3(x+1)

y-2=-3x-3

+2    +2

y=-3x-1

what is the length of the diagonal of a 10cm by 15cm rectangle to the nearest whole number​

Answers

Answer:

18cm (nearest whole number)

Step-by-step explanation:

Let the length of the diagonal be x cm.

Please see the attached picture for the full solution.

If the dimensions of a cylinder are doubled he suface area will​

Answers

they will quadruple !!

It will be doubled, Because the surface area is getting bigger as the dimensions get bigger.

Write the equation of the line passing through the points (6, -9) and (1,6).

Answers

Answer:

-4.8

Step-by-step explanation:

Dont want to explain

my question is in the image

Answers

Answer:

13.2 miles

Step-by-step explanation:

To solve this, we will need to first solve for the base of the triangle and then use the information we find to solve for the shortest route.

(5.5 + 3.5)² + b² = 15²

9² + b² = 15²

81 + b² = 225

b² = 144

b = 12

Now that we know that the base is 12 miles, we can use that and the 5.5 miles in between Adamsburg and Chenoa to find the shortest route (hypotenuse).

5.5² + 12² = c²

30.25 + 144 = c²

174.25 = c²

13.2 ≈ c

Therefore, the shortest route from Chenoa to Robertsville is about 13.2 miles.

Hurry ASAP need help nowww

Answers

Answer:

cant help sry

Step-by-step explanation:

Answer:

35

Step-by-step explanation:

80-45=35

What is the slope of the line in the graph?
-4/3
-3/4
3/4
4/3

Answers

Answer:

-3/4

Step-by-step explanation:

If you take two points, the rise is 3. Also, the change in y is 4. Since the line is going downwards from left to right, it has to be negative.  

Three-twelfths of the girls on Jamilia’s softball team missed practice. Which of the following is equal is equal to 3/12?

Answers

3/12=1/4 or 25%. You can simply 3/12 by 3. 3/3=1 and 12/3=4, and therefore: 3/12=1/4.

Q
is the midpoint of PR¯¯¯¯¯¯¯¯
. If PQ=4x+5,
andQR=2x+25
, what is the value of x

Answers

Answer:

x = 10

Step-by-step explanation:

Q  is the midpoint of PR: PQ = QR

4x + 5 = 2x + 25

2x = 20

x = 10

What's 2+2 equal to?

Answers

Answer:

4

Step-by-step explanation:

Answer:

Answer is 4.

Step-by-step explanation:

I hope it's helpful!

can i please have help on this q thank you

Answers

Answer:

20

Step-by-step explanation:

Answer:

x = 20

Step-by-step explanation:

[tex]\frac{x}{4}-1=4[/tex]          {Add 1 to both sides}

 + 1   = +1

[tex]\frac{x}{4}[/tex]       = 5     {Multiply both sides by 4}

[tex]\frac{x}{4}*4=5*4\\\\[/tex]

x = 20

I need help with this question it's for a important grade and if anyone can help that will be great.​

Answers

Basically you use the tan/sin/cos rules.

You have your opposite=13 and hypotenuse=33, so use sin to solve it.

sin^-1(opp/hyp)
=sin^-1(13/33)
=23 degree

Step-by-step explanation:

33+13+90=136+?=180

136-180=44

X=44

Find the volume of the sphere .

Answers

Answer:

1436.8cm³

Step-by-step explanation:

Formula :

[tex] \frac{4}{3} \times \pi \times r ^{3} [/tex]

[tex] \frac{4}{3} \times \pi \times 7^{3} [/tex]

=1436.75504cm³

to 1dp

=1436.8cm³

Other Questions
Choose the definition that matches the word used in the sentence below:The elderly lady did not want to burden her children, so she kept her illness a secret.n. Something that is carried, especially a heavy loadn. Something that is carried, especially a heavy loadv. To add to what one has to bearv. To add to what one has to bearn. Anything that is hard to bear, emotionally please explain how you got your answer too! what is pupil reflex? How was your experience from changing a babys diaper? A question from my health class assignment. Please help me out quick.. Read this excerpt from The Myth of Hercules.Hercules was the son of the great god Zeus and a human woman named Alcmene. The goddess Hera did not like Alcmene and vowed to destroy Hercules when he was born. Hera sent two snakes to kill the baby as he lay in his crib, but Hercules was strong and strangled the snakes with his tiny hands before they could bite him with their sharp fangs.The excerpt gives clues that later in the story, Hercules will most likelyprove that he does not have heroic traits. seek revenge against the goddess Hera. make peace with the goddess Hera. show strength when facing obstacles. Mark this and return HELP DUE IN 10 MINS! Kayla decided to try parasailing. She was strapped into a parachute towed by a boat. An 800 foot line connected her parachute to the boat, which was at a 32 degree angle of depression below her. How high above the water was Kayla? Round to the nearest foot.feet=?? If a central angle measures 87, then its arc will measure _____.twice as muchthe samehalf as much A sodium vapor lamp omit waves with the frequency of 5.26x10^14 Hz. What is the wavelength of light? the first term of A.P is 5 and the last term is 45 and the sum of all term is 400. find the number of terms and the Common difference.help me plz If a vector gets multiplied by a negative number then its directionA. remain sameB. gets reversedC. gets halfD. gets double 25 points pls helpwhich of the following rational functions is graphed below? please i need to finish this today Where did the Aborigines come from? Are the Aborigines one group of people or a scattered mixture of tribes? 7. Find the inverse of f(x) = -2x + 10. Please show work. Can you help with Acrostic poem here are lettersCAESAR The ability of each branch of government to limit the power of the other branches is calledOA. executive privilegeOB. checks and balancesC. constitutional rightsD. separation of powers Which pair of moving pulses in a rope will producedestructive interference? please help !! I need the new equation, the vertex, the zeros, the y-intercept, and the maximum or minimum value what is the slope of (1,3) and (1,0)