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Eddi Din [679]
4 years ago
13

What is the value of (Negative one-half)–4?

Mathematics
2 answers:
melamori03 [73]4 years ago
3 0

Answer:it is 16

Step-by-step explanation:

kvasek [131]4 years ago
3 0

Answer:

It would be 16!!!

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Name:
ad-work [718]

Answer:a) 84π b) 109.2π

Step-by-step explanation:

The formula to find this is v=πr^2h/3

r=d/2. so the radius (r) is 6 because you have to divide the diameter (12) by 2. and the height is 7. so, 6^2=36 and 36x7=252.

252/3=84

and because the question is asking for the EXACT value, you need to just put the pi symbol next to it. Final answer for a is 84π

B) you need to find 30% of 84, which is 25.2 and add it to 84, and you will get 109.2! Final answer is 109.2π.

7 0
3 years ago
According to the Rational Root Theorem, which number is a potential root of f(x) = 9x8 + 9x6 – 12x + 7?
MrRa [10]
7/3 is the answer to your question
5 0
4 years ago
Read 2 more answers
In training for a swim meet, Logan swam 750 meters in⅓ of an hour. His swimming partner, Mila, swam 2/3 of Logan's distance in 1
viva [34]

Answer:

Logan's average is 2,250 meters per hour

Step-by-step explanation:

                60 ÷ 1/3 = 20                                                          

        1/3 of an hour is 20 min                                  

Logan swam 750 meters in 20 minutes              

         20min × 3 = 60min = 1 hour

          750 meters × 3 = 2250

Logan's average is 2,250 meters per hour                                                                

4 0
3 years ago
I need help with exercises 3,4, and 6 please show all work and don’t answer number 5 just tell me if it is correct
joja [24]
*If you need me to do #5, DM me!

3. 
The area of a triangle can be given by (just plug and chug as always):
A_t = \frac{1}{2} bh = \frac{1}{2}(3)(4) = 6ft^2
The area of the triangle is 6ft².

4. I will divide into a triangle and a rectangle (because the actual equation for the area of a pentagon requires it to be a perfect pentagon). Let's do the triangle first (height is 3 because you subtract 12 from 15):
A_t = \frac{1}{2} bh = \frac{1}{2}(8)(3) = 12m^2
A_r = bh = 12(8) = 96m^2
Now we just add them:
96+12 = 108m^2

So, the area of that pentagon is 108m².

5. You are actually wrong on this one because the area of a triangle is:
A_t = \frac{1}{2}bh
So, just halve your answer and it will be correct.

6. We can just split it into 4 triangles of equal area and then multiply the area of 1 triangle by 4 to get the total area. Let's do just that:
A_t = \frac{1}{2}bh = \frac{1}{2}(2.5)(5) = 6.25cm^2
Multiply by 4 to get total area:
6.25*4 = 25cm^2

So, the area of the given rhombus is 25cm².
8 0
4 years ago
Write 0.79 repeating as a fraction.
Paha777 [63]

Answer:

79/99

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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