How do you solve this?

Answers

Answer 1

Answer: $x^2-3x-4=0\n\nx^2-2x\cdot(3)/(2)=4\ \ \ /+((3)/(2))^2\n\nx^2-2x\cdot(3)/(2)+((3)/(2))^2=4+((3)/(2))^2\n\n(x-(3)/(2))^2=4+(9)/(4)\n\n(x-(3)/(2))^2=(16)/(4)+(9)/(4)\n\n(x-(3)/(2))^2=(25)/(4)\n\nx-(3)/(2)=\pm\sqrt(25)/(4)$

$x-(3)/(2)=\pm(√(25))/(\sqrt4)\n\nx-(3)/(2)=\pm(5)/(2)\n\nx-(3)/(2)=-(5)/(2)\ or\ x-(3)/(2)=(5)/(2)\n\nx=-(5)/(2)+(3)/(2)\ or\ x=(5)/(2)+(3)/(2)\n\nx=-(2)/(2)\ or\ x=(8)/(2)\n\nx=-1\ or\ x=4$

Answer 2

Answer: Why not simply factor the left side ?

(x - 4) times (x + 1) = 0

This equation is true if either factor is zero.

(x - 4) = 0
x = 4

(x + 1) = 0
x = -1

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Ellie bought two pairs of shoes during a BOGO (Buy One, Get One) sale. She received a 20% discount on the second pair of shoes. The regular price of each pair of shoes was $49.99. How much did Ellie pay for the two pairs of shoes, excluding tax?
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People are arriving at an amusement park at a constant rate. If 450 people arrive in 15 minutes, how many people arrive each minute?
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Which of the following experiments could be used to simulate an event in which the probability of success, P(success), is start fraction one over three end fraction and the number of successes out of 10 events is desired?Use a spinner that is divided into four equal parts. Let one color represent successful; the other three colors represent unsuccessful. Spin the spinner 10 times, once for each event

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Answers

A.Use a spinner that is divided into four equal parts. Let one color represent successful; the other three colors represent unsuccessful. Spin the spinner 10 times, once for each event

A pentagonal prism is cut by a plane perpendicular to the base. What is the shape of the cross section that is formed?a pentagon with one pair of equal sides
a trapezoid with one pair of parallel sides
a rectangle
a triangle
a hexagon

Answers

The correct answer is:

a rectangle

Explanation:

In a right pentagonal prism, the bases are pentagons and the lateral faces are rectangles.

If we take a cross-section perpendicular to the base, this same cross-section will be parallel to the lateral faces. This means it will be the same shape as the lateral faces, which is a rectangle.

Answer:

rectangle

Step-by-step explanation:

edemuntum gang

When n is divided by 12, the remainder is 6. What is the answer when n is divided by 6?

Answers

their won't be a remainder, but n is not determinable

Hello,

if n=q*12+6 then
n/6=(q*12+6)/6=q*2+1
Remainder is 1.

Select all that apply.Which of the following could you use to find 40% of 32?

0.4 · 32
2/5 · 32
40/100 · 32
32/40

Answers

40/100= 0.4: 0.4x=32: x= 32/0.4 x=80

the answer your looking for is 80% or 80over100 or 80

A candy jar contains 120 pieces of candy, including 45 red candies. If the ratio of red candies to the total number of candies in the jar remains the same, how many red candies would there be in a jar containing 200 pieces of candy?

Answers

Answer:

75 red candies

Step-by-step explanation:

200 candies divided by 120 = 1.666666666666667

Simply times 45 by 1.666666666666667

A 2-column table has 4 rows. The first column is labeled x with entries 1, 2, 3, 4. The second column is labeled y with entries 4.5, 6.75, 10.125, 15.1875.What is the multiplicative rate of change of the exponential function represented in the table?

1.5
2.25
3.0
4.5

Answers

The rate of change for the given function is 2.25. Therefore, option B is the correct answer.

What is rate of change of a function?

The rate of change, or the slope, is calculated as Δy/Δx , or (y2−y1)/(x2−x1). The slope-intercept equation of a line is y=mx+b , where m is the slope and b is the initial value.

From the given table, we have (1, 4.5), (2, 6.75), (3, 10.125) and (4, 15.1875).

Using coordinate points (1, 4.5) and (2, 6.75), we get

Rate of change = (6.75-4.5)/(2-1)

= 2.25

Therefore, option B is the correct answer.

Learn more about the rate of change here:

brainly.com/question/8223651.

#SPJ6

Answer:

its 3.0

Step-by-step explanation:

ik bc i took the test

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