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sveticcg [70]
3 years ago
5

1 plus 1 is equal to 2 but jonas has 19 more

Mathematics
1 answer:
Vlada [557]3 years ago
4 0

Answer:

Jonas has 21.

Step-by-step explanation:

19+2= 21

Since he has 19 more than what the other person has, which is 2.

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if 1 gallon of paint covers 400 square feet, about how many gallons of paint are needed to paint the outside of a spherical tank
ollegr [7]
Given:
Diameter if the spherical tank = 20 ft.
Now,
We know,
radius = diameter / 2
          = 20 / 2
          = 10 ft.
Now, 
The area of the spherical tank = 4 \pi  r^{2}
        
                                            = 4 \pi  (10)^{2}

                                            = 4 * \pi *100

                                            = 1256.637061
 
                                            = 1256.64~ft^2-->rounded  

Now,
According to the question,
400 ft² needs 1 gallon of paint
1 ft² needs (1 / 400) gallon of paint
1256.64 ft² needs (1 / 400) * 1256.64 gallon of paint
                        = 3.1416 gallon of paint
                        = 3.14 gallon of paint --------------> rounded

So, we need 3.14 gallon of paint


6 0
4 years ago
A discount of $8.40 on something that usaully costs $28.00.What percent discount was received
STatiana [176]

Answer: 30%

Step-by-step explanation:

percentage = (discount/total amount)

* 100= (8.40/28)*100=30%

8 0
2 years ago
A ladder is leaning against the side of a building. The building and the ground form a right angle. How high on the building wil
Zielflug [23.3K]
<span>B) 
8 ft 
6, 8, 10 are lengths of a Pythagorean triple 
6^2 + 8^2 = 10^2</span><span>
</span>
7 0
4 years ago
Read 2 more answers
Write an inequality that represents the graph.
Dimas [21]

Answer:

y=2x+1

Step-by-step explanation:

Y intercept is 1 and slope is 2/1

5 0
3 years ago
which function has real zeros at x = −10 and x = −6? f(x) = x2 16x 60 f(x) = x2 − 16x 60 f(x) = x2 4x 60 f(x) = x2 − 4x 60
LiRa [457]

Answer:

Option A is correct

The function x^2+16x+60 has real zeroes at x =-10 and x =-6

Explanation:

Given: The real zeroes or roots are x = -10, and x = -6

To find the quadratic function of degree 2.

x^2- (\alpha+\beta)x + \alpha\beta =0 where α,β are real roots.   ....[1]

Here, α= -10  and β= -6

Sum of the roots:

α+β =  -10+(-6) = -10-6 = -16

Product of the roots:

αβ = (-10)(-6)= 60

Substitute these value in equation [1] we have;

x^2-(-16)x+60 = x^2+16x+60

Therefore, the quadratic function for the real roots at x =-10 and x =-6 ;

x^2+16x+60

8 0
3 years ago
Read 2 more answers
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