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Rasek [7]
2 years ago
14

What is the positive solution to this equation? 3x^2+16x=112

Mathematics
2 answers:
juin [17]2 years ago
7 0
1600, only if its evaluating the discriminant
ikadub [295]2 years ago
6 0

Answer:

This equation is in standard form: ax 1+bx+c=0. Substitute 9 for a, 16 for b, and −112 for c in the quadratic formula 2a−b±b2−4ac.x= 2×9−16± 16^2−4×9(−112)Square 16.x=2×9−16±256−4×9(−112) Multiply −4 times 9.x=2×9−16± 256−36(−112) Multiply −36 times −112.x=2×9−16±256+4032 Add 256 to 4032.x=2×9−16±4288 Take the square root of 4288.x=2×9−16±8+67 Multiply 2 times 9x=18−16±8=67

Step-by-step explanation:

hope this help if not let me know

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Transforming data
Papessa [141]

Answer:

See below in bold.

Step-by-step explanation:

Mean = 150 cm = 150 * 0.033 feet

= 4.95 feet.

The standard deviation =  10 cm = 10 * 0.033

= 0.33 feet.

7 0
3 years ago
5) Ziegler is using paper for an art project
lord [1]

Answer:

9.5 * 10^-2 mm

Step-by-step explanation:

To find the total thickness, we proceed to add the two thickness that we have

Mathematically, this will be;

0.025 mm + 7 * 10^-2 mm

7 * 10^-2 mm = 0.07

So we have;

0.025 mm + 0.07 mm = 0.095

In scientific notation, this is 9.5 * 10^-2 mm

6 0
3 years ago
The amount of chlorophyll in a leaf changes based on outside temperature. What's the independent variable in the situation?
I am Lyosha [343]

Answer:


Step-by-step explanation:

Given that the amount of chlorophyll in a leaf changes based on outside temperature. Here there are two variables.

i) Amount of chlorophyll in a leaf

ii) outside temperature

Here outside temperature is an independent variable as amount of chlorophyll in a leaf cannot control it.

But on the other hand, Amount of chlorophyll in a leaf depends on the outside temperature and hence cannot be independent but dependent variable

Recall the definition of dependent and independent variable

An independent variable is the variable that is controlled in a scientific experiment to test the effects on the dependent variable.

A dependent variable is the variable being tested and measured in a scientific experiment.



6 0
2 years ago
Calculate X you must include the steps in your solution and the definitions and/or conjuncture that you use
Ira Lisetskai [31]

Answer: x = 8

because  The upper triangle is an isosceles triangle (the two sides are equal)

=> 5x + 5 = 45°

<=> x = (45 - 5) : 5

<=> x = 40:5 = 8

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Finn is walking on a treadmill at a constant pace for 30 minutes. She has programmed the treadmill for a 2-mile walk. The displa
Ymorist [56]

30*2=15miles per min. x*y=d.

4 0
3 years ago
Read 2 more answers
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