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miskamm [114]
4 years ago
7

-4.2 (-2.8+4.5) what is the value of the expression

Mathematics
1 answer:
Artyom0805 [142]4 years ago
4 0
-7.14 should be your answer!
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What is the domain, range, and is it a function?
jarptica [38.1K]

Answer:

Domain is 8 range is 2

Step-by-step explanation:

And if it passes the vehicle line test it is a function

3 0
3 years ago
A triangle has ∠1 and ∠2 as remote interior angles with respect to exterior angle ∠3. Given that m∠1 = 50 and m∠2 = 70, Alicia r
11111nata11111 [884]

Answer:

No, 60 is the third interior angle's mesure, not the exterior ∠3.

Step-by-step explanation:

Say that ∠1=∠A=50 and ∠2=∠B=70. The remote interior angles are the angles that are not touvhing the exterior angle. So ∠3 would be the the exterior angle to ∠C. ∠C=60 as the sum of the interior angles is 180.

The exterior angle is the angle formed by extending one of the triangle's sides. A straight line has the angle 180,  so∠3=180-∠C=180-60=120.

4 0
3 years ago
An adult takes 400 mg of ibuprofen. Two hours later, there is 201.6 mg of
VikaD [51]

Answer:

It will take 3 hours 46 minutes and 8 seconds to use 375 mg of ibrufen.

Step-by-step explanation:

An adult takes 400 mg of ibuprofen. Two hours later, there is 201.6 mg of

ibuprofen left in the persons system

This means that in 2 hours time

400- 201.6= 198.4 mg was used up.

We need only 25 mg in the system

so 400- 25= 375 mg  time is needed

time          mg

2 hour      198.4

x                375

Using the cross product rule

x= 375*2/198.4

x= 3.780 hrs

Which means 3 hours and (0.78* 60)= 46.8 minutes.

It will take 3 hours 46 minutes and 8 seconds to use 375 mg of ibrufen.

8 0
3 years ago
How many quarters can fill a 1 liter bottle?
scoundrel [369]

3090 because I looked up

3 0
3 years ago
If a and b are positive integers and their product is 3 times their sum,what is the value of 1 a + 1 b ?
beks73 [17]
Hello,
3 solutions:
a=0,b=0 ==>a+b=0,a*b=0a=4,b=12 ==> a+b=16, a*b=48a=6,b=6 ==>a+b=12,a*b=36


8 0
4 years ago
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