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Tpy6a [65]
3 years ago
5

Solve for the roots in simplest form using the quadratic formula: 4x^2+5=−12x

Mathematics
1 answer:
MA_775_DIABLO [31]3 years ago
6 0
1/5 or 5/2 either one works!!
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A 12 ft ladder leans against the side of a house. The top of the ladder is 10ft off the ground. Find x, the angle of elevation o
attashe74 [19]

The image is missing, so i have attached it.

Answer:

x = 56.44°

Step-by-step explanation:

From the attached image, we can see that this is a right angle triangle which has opposite, adjacent and hypotenuse as sides. Since we want to find the angle x, thus, we can make use of trigonometric ratios.

From the attached image, the side opposite to angle x is 10ft and the hypotenuse is 12 ft.

From trigonometric ratios, we know that, sin x = opposite/hypotenuse

So, sin x = 10/12

x = sin^(-1) (10/12)

x = sin^(-1) 0.8333

x = 56.44°

6 0
3 years ago
________ are ratios that name the same comparison
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<span>Equivalent ratios are ratios that name the same comparison. Meanwhile, equivalent fractions </span><span>are fractions that name the same amount or part. Equivalent ratios and equivalent fractions are similar in that the two quantities refer to ratios and fractions that ultimately have the same value but are expressed in a different way. For example, 48/64 is equivalent to 72/96, both have the value of 3/4. </span>
4 0
4 years ago
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What is the inverse of the function select the correct answer
GalinKa [24]
It’s A, as you can tell from my picture

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3 years ago
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Starting from 50 feet away your friend skates towards you and then passes you. She skates at a constant speed of 10 feet per sec
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12 sec..............
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4 years ago
Two trains, Train A and Train B weigh a total of 349 tons. Train A is heavier than Train B. The difference in their weights is 2
Ainat [17]

Answer:

Train A = 299 tons Train B = 50 tons

Step-by-step explanation:
Train A = x

Train B = y

x+y = 349

x= y +249

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y+249+y= 349

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2y+249=349

Subtract 249 from both sides

2y=100

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-50 from both sides

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3 years ago
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