1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rina8888 [55]
2 years ago
13

The number 68 is increased to 73. What is the percentage by which the number was

Mathematics
1 answer:
Murljashka [212]2 years ago
3 0

Answer: 1.1%

Step-by-step explanation:

To get a percentage you want to divide the ending number by the base number

73 / 68 = 1.07

It says to round to the neartest tenth, when rounding if the number is 5 or above you round up, if under 5 your number stays the same

7 is higher than 5 so we round up

1.1%

You might be interested in
0.4(0.3x-1)=2+0.75x<br><br>what does x equal?
NARA [144]
I got that x equals -3.809523 (repeating)
8 0
3 years ago
NO LINKS OR ANSWERING QUESTIONS YOU DON'T KNOW!!! THIS IS NOT A TEST OR AN ASSESSMENT!! Please help me with these math questions
Art [367]

Answer:

See below

Step-by-step explanation:

3. What are two ways that a vector can be represented?

Considering a vector \vec{v} in some vector space \mathbb R^n we have

\vec{v} = \langle a,b\rangle

This is the component form. I don't like that way. It is probably used in high school, but

\vec{v} =  \begin{pmatrix} a\\ b\\ \end{pmatrix}

is preferable because the inner product on \mathbb R^n is defined to be

$\langle a,b\rangle := \sum_{i = 1}^n a_i b_i$

You can also write it using linear form such as \vec{v} = 2i+2j

4.

For this question, I think you meant

vectors

\vec{u_1} = (-8, 12)

\vec{u_2}  = (13, 15)

Once

\cos(\theta)=\dfrac{\vec{u_1} \cdot\vec{u_2}}{||\vec{u_1}||||\vec{u_2}||}

Considering that the dot product is

\vec{u_1}\cdot \vec{u_2} = (-8)\cdot 13 + 12\cdot 15 = -104+180= 76

and the norm of \vec{u_1} is ||\vec{u_1}|| = \sqrt{(-8)^2 + 12^2} = \sqrt{64 + 144}= \sqrt{208}

and the norm of \vec{u_2} is ||\vec{u_2}|| = \sqrt{13^2 + 15^2} = \sqrt{169 + 225}= \sqrt{394}

Thus,

\cos(\theta)=\dfrac{76}{\sqrt{208} \sqrt{394}} = \dfrac{19}{\sqrt{13}\sqrt{394}}=\dfrac{19}{\sqrt{5122}}

\therefore \theta = \arccos \left(\dfrac{19}{\sqrt{5122}} \right)

3 0
2 years ago
What is 2.5 (x - 1) + 4.5 (-x - 2)
yaroslaw [1]

Answer:

2.5(x-1)+4.5(-x-2)

2.5x-2.5-4.5x-9

-2x-11.5

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
When a softball player gets a hit, it can be a single, double, triple, or home run. When Josephine is at bat, the protectity
Fofino [41]

Answer:

The probability of hitting a single or a double is 1/5 or 20% or 20/100 or 0.2

Step-by-step explanation:

In probability, whenever we are to answer an ‘or’ question, we add up the probabilities involved.

The probability of hitting a single is 15%, that is same as 15/100 or just simply 0.15

The probability of hitting a double is 5%, that is simply 5/100 or just simply 0.05

The probability of hitting a single or a double = Probability of hitting a single + Probability of hitting a double = 0.15 + 0.05 = 0.20 or 20/100 or 1/5

6 0
3 years ago
Hey guys maths today
allochka39001 [22]
Angle B is 36. Hope this helps. :)
7 0
2 years ago
Read 2 more answers
Other questions:
  • You've decided to take 3 steps and randomly choose left or right as the direction each time.
    7·2 answers
  • still bought a t-shirt for $21 and a pair of shorts for $16 he paid with 20 bills how much money did Dale get back
    7·1 answer
  • A packing company is packing 567 boxes of cereal into large crates for shipping. Each crate can hold 36 cereal boxes. 15 larger
    8·1 answer
  • Who can help me with 5 math questions ? yes or no, and i will give them to you.
    12·1 answer
  • Theresa bought 2 pineapples for $6 what’s the constant of proportionality
    8·2 answers
  • Directio: Draw and label a figure for the condition.
    11·1 answer
  • What is the constant of proportionality?
    12·1 answer
  • Sharon’s organization hopes to raise more
    11·1 answer
  • -4x + 3y = -2<br><br> Y = x - 1
    7·1 answer
  • The water level in the pond decreased from 46 feet to 20 feet. What is the percent decrease in the water level rounded to the ne
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!