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Vinil7 [7]
3 years ago
12

Which values of c will cause the quadratic equation –x2 + 3x + c = 0 to have no real number solutions? Check all that apply.

Mathematics
2 answers:
nika2105 [10]3 years ago
7 0
Quadratic equation which has no solution gives zero for the value of d.
d = b² - 4ac
0 = 3² +- 4(-1)c
-9 = +_ 4c
c = -9/-4 pr 9/-4
c = 9/4 or -9/4

In short, Your Answers would be Option C & E

Hope this helps!


Lerok [7]3 years ago
7 0

Answer:

the correct answer is A and B


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Bob is reading a 445 page book. He has already read 157 pages. If he reads 24 pages a day, how long will it take him to finish t
Sever21 [200]

Answer:

12 days

Step-by-step explanation:

Set up an equation with y = mx + b, where m is the rate and b is the y-intercept (starting value)

Let x represent how many days it takes and y represent how many pages he read:

445 = 24x + 157

Solve for x:

288 = 24x

12 = x

So, it will take him 12 days to finish the book

3 0
3 years ago
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If Skylar's property has a net income of $5,480, and returns 8 percent annually on the investment, then what is her property's v
saveliy_v [14]

Answer:

the Skylar's property value will be equal to $68,500.

Step-by-step explanation:

given,  

the net income of $5,480

return of 8 percent annually on the investment

property value is the value upon which the buyer and the seller come on the same page means they agree for the price.

property value = net operating income / capital rate

                        = \dfrac{5480}{0.08}

                        = $68,500

hence, the Skylar's property value will be equal to $68,500.

8 0
3 years ago
What is x(7x+12x) if x=8
Komok [63]

Answer:

1216

Step-by-step explanation:

Plug in 8 everywhere you see x.

8[(7*8)+(12*8)]

Solve, using order of operations (PEMDAS).

8(56+96)

8(152)

1216

3 0
3 years ago
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What is the value of the coins?
nikitadnepr [17]

Answer:

220 cents, $2.20

Step-by-step explanation:

Count the amount of QUARTERS there are.

7 quarters.

The next coin in the photo is a dime.

4 dimes.

The next coin in the photo is a penny.

5 pennies.

Quarters are worth 25 cents, dimes are worth 10 cents, and pennies are worth 1 cent.

25(7) + 4(10) + 5(1) = v (the total value)

25 * 7 = 175 cents

4 * 10 = 40 cents

5 * 1 = 5 cents

175 + 40 + 5 = v

175 + 40 = 215 cents

215 + 5 = 220 cents

The value of all of those coins is 220 cents, or $2.20.

5 0
3 years ago
A 107-ft-tall building casts a shadow of 90 ft. To the nearest whole degree,
Paul [167]

Answer:

The answer is less than 50 degrees

explanation:

The solar elevation angle is the altitude of the Sun, the angle between the horizon and the centre of the Sun's disc. Since these two angles are complementary, the cosine of either one of them equals the sine of the other. They can both be calculated with the same formula, using results from spherical trigonometry.

3 0
3 years ago
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