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Mashcka [7]
3 years ago
8

Which is a zero of the quadratic function f(x) = 4x2 + 24x + 11?

Mathematics
1 answer:
Kitty [74]3 years ago
8 0
X=-5.5 the other zero would be x=-0.5 but that’s not an option.
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A coupon subtracts $17.95 from the price p of a pair of headphones. You pay $71.80 for the headphones after using the coupon. Wr
Nady [450]

Answer:

x - 17.95 = 71.80, $89.75

Step-by-step explanation:

Let the original price of the headphones be x

Amount of coupon = $17.95

You pay the final amount for the headphones after using the coupon = $71.80

So to find the original price of the headphones, the equation will be

x - 17.95 = 71.80

x = 17.95 + 71.80

x = $89.75

The original price of the headphones would be $89.75

3 0
2 years ago
Read 2 more answers
Write the products <br><br> 6 tens =<br> 9 tens =<br> 12 tens=<br> 10 elevens=
MrRa [10]

Answer:

see below

Step-by-step explanation:

6 tens =  6 * 10 = 60

9 tens = 9* 10 = 90

12 tens= 12 * 10 = 120

10 elevens=10 * 11 = 110

3 0
3 years ago
CLASS 6 MATHS!!!! HELP ME PLEASE!!!!!!!​
Elanso [62]

Step-by-step explanation:

\\ 20. \:  \: ( \frac{ - 3}{4} )(4\frac{1}{6} )

\\  =  \frac{ - 3}{4}  \times  \frac{25}{6}

\\  =  \frac{ - 25}{8}

\\  =  - 3.125

\\ 21. \:  \: ( - 3\frac{7}{8} )( - 5\frac{3}{4} )

\\  =  \frac{ - 31}{8}  \times  \frac{ - 23}{4}

\\  =  \frac{713}{32}

\\  = 22.28125

6 0
3 years ago
How many feet tall is the building ​
Fantom [35]

Answer:

Height of the building = 77 ft.

Step-by-step explanation:

Let the height of the building (AB) = h feet

It's given that height of a woman (ED) = 5 feet 3 inches

                                                              ≈ 5 feet + \frac{3}{12} ft

                                                              ≈ 5.25 ft

Length of the shadow (BC) of the building = 55 ft

Length of the shadow (DC) of the woman = 45 in ≈ 3.75 ft

Since, both the triangles ABC and EDC are similar, their corresponding sides will be proportional.

By the property of similar triangles,

\frac{AB}{ED}= \frac{BC}{DC}

\frac{h}{5.25}=\frac{55}{3.75}

h = \frac{55\times 5.25}{3.75}

h = 77 ft

Therefore, height of the building will be 77 ft.

6 0
3 years ago
4a + 3 - 9 = -7 + 2 + a
rjkz [21]
4a + 3 - 9 = -7 + 2 + a
4a - 6 = -5 + a
4a - a = -5 + 6
3a = 1 / : 3
a = 1/3

6 0
3 years ago
Read 2 more answers
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