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3 years ago

Write the rational number -4.5 in the form a/b where a and b are integers.

Mathematics

2 answers:

Daniel [21]3 years ago

7 0

Answer:

4.5 is equal to 4 and 5/10 or 45/10

Step-by-step explanation:

Four and five tenths so you write that as a fraction and when you get that you can change it into a improper fraction and multiply 4&10 then add 5 to get 45/10 (you keep the denominator the same)

Ulleksa [173]3 years ago

6 0

Answer:

-9/2

Step-by-step explanation:

as there is a half put it over 2

then 4 is 8 halves, then the 0.5 makes it 9

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If BAC = 320°, what is the measure of BC?

melisa1 [442]

Answer:

BC = 40º

BMC = 40º

Step-by-step explanation: Since the measure the major and minor arcs add up to 360º, just subtract 320 from 360 to find BC which is 40º. <BMC is also 40º because the measure of the arc is equal to its corresponding angle.

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3 years ago

What's the proportional relationship? I've totally forgot how to do this aaa

lubasha [3.4K]

Answer: yes it has a proportional relationship

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3 years ago

Thirty percent of what number is 275

blagie [28]

Answer:

275 is 30% of 916.67

Step-by-step explanation:

We have, 30% × x = 275

or $\frac{30}{100} x x = 275$

Multiplying both sides by 100 and dividing both sides by 30,

we have x = 275 × $\frac{100}{30}$

x = 916.67

If you are using a calculator, simply enter 275×100÷30, which will give you the answer.

5 0

2 years ago

Read 2 more answers

Which gives the area of a rhombus with sides of length 10 in, and longer

Kaylis [27]

Answer:

Area of rhombus = 96 inch²

Step-by-step explanation:

Given:

Side length of rhombus = 10 inch

Length of longer diagonal = 16 inch

Find:

Area of rhombus

Computation:

We know that, diagonals of rhombus perpendicular bisect each other

So,

Half of small diagonal = √Side length of rhombus² - Half length of longer diagonal²

Half of small diagonal = √10² - 8²

Half of small diagonal = √100 - 64

Half of small diagonal = √36

Half of small diagonal = 6 inch

Length of smaller diagonal = 2 x 6

Length of smaller diagonal = 12 inch

Area of rhombus = (Product of diagonals)/2

Area of rhombus = (16 x 12)/2

Area of rhombus = 96 inch²

8 0

3 years ago

Can I please get some help

Aleksandr [31]

Answer:

a. $1.76$

b. $2.5$

Step-by-step explanation:

You have the following formula given in the exercise:

$t=\frac{\sqrt{100-h}}{4}$

a. If the object is 50 feet above the ground, you can identify that the value of the variable "h" would be the following:

$h=50$

Then, knowing that value, you can substitute it into the given formula and then evaluate in order to calculate the time in seconds for the object to be 50 feet above the ground.

This is:

$t=\frac{\sqrt{100-50}}{4}\\\\t=1.76$

b. When the object reaches the ground, the value of "h" is:

$h=0$

Therefore, substituting this value into the formula and evaluating, you get that time (in seconds) it takes to the object reaches the ground is:

$t=\frac{\sqrt{100-0}}{4}\\\\t=2.5$

7 0

3 years ago