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2 years ago

Witch method can be used to find the range of a set of data

Mathematics

1 answer:

Delicious77 [7]2 years ago

5 0

Answer:

you subtract the lowest # in the set of data from the highest #

Step-by-step explanation:

i just took a test on Engenuity

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Factor 16x^2 + 49. Check your work.

Shtirlitz [24]

Answer:

$16x^2+49=(x-\frac{7i}{4})(x+\frac{7i}{4})$

Step-by-step explanation:

Given : Expression $16x^2+49$

To find : Factor the expression ?

Solution :

The given expression is a quadratic function $y=ax^2+bx+c$ the solution is $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

On comparing with general form,

a=16, b=0, c=49

Substitute in the formula,

$x=\frac{-0\pm\sqrt{0^2-4(16)(49)}}{2(16)}$

$x=\frac{\pm\sqrt{-3136}}{32}$

$x=\frac{\pm56i}{32}$

$x=\frac{56i}{32},\frac{-56i}{32}$

$x=\frac{7i}{4},\frac{-7i}{4}$

Factors are $(x-\frac{7i}{4}),(x+\frac{7i}{4})$

Therefore, $16x^2+49=(x-\frac{7i}{4})(x+\frac{7i}{4})$

4 0

3 years ago

Explain in words what mistake you made and how will correct it. in a group of 20 children,there were 8 girls. which is the ratio

Nataly_w [17]

Well first do 20 children minus 8 girls to find how many boys there are:
20-8=16
So there are 16 boys. Therefore we can write the ratio of girls to boys as:
8/16
Then we can simplify this ratio by dividing it by 8 to get:
1/2
So the answer is the ratio of girls to boys in the group in simplest form is 1/2.

7 0

2 years ago

What is the answer to this question

Gre4nikov [31]

It’s 4.08x10 to the 6 power. Which is answer A

6 0

2 years ago

Identify the quadratic term in the function, f(x)=2x^2-3x+5

Nadusha1986 [10]

Answer: 2x^2

The three terms are
2x^2
-3x
5
as they are separated by a plus sign. You can think of it as 2x^2 + (-3x) + 5 if you want. The quadratic term is the term with the exponent of 2

7 0

3 years ago

PLEASE I NEED HELP QUICK:

nignag [31]

1/3 is 0.3333333 and you round it by the 3rd three, so it looks like 0.334

3 0

3 years ago