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4 years ago

10

A brand of cereal had 1.2 mg of iron per serving. Then they changed their recipe so they had 1.8 mg of iron per serving. What wa

s the percent increase in iron?

1 answer:

Hoochie [10]4 years ago

6 0

The percent increase in the iron was 50%. 1.2/2 = .6 1.2 + .6 = 1.8

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Calculate a vector c in the same direction of the vector a and that has the same length as the vector b

Viktor [21]

For any scalar $t>0$ , $t\vec a$ is a vector pointing in the same direction as $a$ .

To force this vector to have the same length as another vector $\vec b$ , first normalize $t\vec a$ by dividing it by its norm,

$\dfrac{t\vec a}{\|t\vec a\|}=\dfrac{t\vec a}{t\|\vec a\|}=\dfrac{\vec a}{\|\vec a\|}$

then multiply this vector by the norm of $\vec b$ , so that

$\vec c=\dfrac{\|\vec b\|}{\|\vec a\|}\vec a$

To confirm that $\vec c$ has the same length as $\vec b$ :

$\|\vec c\|=\left\|\dfrac{\|\vec b\|}{\|\vec a\|}\vec a\right\|=\dfrac{\|\vec b\|}{\|\vec a\|}\|\vec a\|=\|\vec b\|$

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3 years ago

If a person's eye level is h meters above sea level and he can see d kilometers to the horizon, then d=3.57h. Suppose the person

olga2289 [7]

Answer:

54.3m

Step-by-step explanation:

h = distance above sea level

d = distance he can sea above sea level

d = 3.57h

h = 15.21m

d = ?

d = 3.57 × 15.21

d = 54.2997m approximately 54.3m

The person can see up to a distance of 54.3m

6 0

4 years ago

How do you find the area of a compound figure

poizon [28]

Answer: It's easy and simple!

Step-by-step explanation: Split it into rectangles and multiply the height and length. Than add it together and Then you have your answer.

6 0

3 years ago

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This graph represents a quadratic function. What is the value of a in this function’s equation? A. 1 B. -2 C. 2 D. -1

DanielleElmas [232]

Answer:

The answer is B

Step-by-step explanation:

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3 years ago

Hello i need help please

Usimov [2.4K]

Option B is correct

8 0

3 years ago

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