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Degger [83]
3 years ago
14

Solve n=2d2-5 when d=-2

Mathematics
1 answer:
Viefleur [7K]3 years ago
7 0
-1 because math is fun
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Where is the blue dot on the number line?
Keith_Richards [23]

Answer:

-11.3

Step-by-step explanation:

You start off at -11 and count down and it ends up at -11.3

5 0
3 years ago
Maggie says that if the expression was 12÷3to the second power, you would divide before simplifying 3 to the second power. Is sh
mezya [45]

Answer:

Maggie is incorrect.

Step-by-step explanation:

PEMDAS tells us the order of operations and the steps of solving a mathematical statement. It states that exponents must be performed before multiplication or division.

P - Parentheses

E - Exponents

M - Multiplication

D - Division

A - Addition

S - Subtraction

Therefore, to solve 12÷3² correctly, 3² needs to be simplified to 9 <em>before</em> dividing.

I hope this helps!

4 0
3 years ago
4. Both the Galapagos Islands and the island of Naura are on the Equator, but the Galapagos Islands are at 90.30◦W whereas the i
nordsb [41]

Answer:

Distance between Nauru and Galapagos islands = 11525 Km to the nearest Km

Step-by-step explanation:

The angle between the two Islands is given as X

X = (180 - 166.56) + (180 - 90.30)

X = 13.44° + 89.70°

X = 103.14

Distance between the islands = length of the arc with angle X subtended at the center of the earth of radius R.

Length of arc = (X/360) × 2πR

Where, R, radius of the earth = 6400 Km

Length of arc = (103.14/360) × 2π × 6400 Km

Length of arc = 11525.48 Km

Therefore, distance between Nauru and Galapagos islands = 11525 Km to the nearest Km

3 0
3 years ago
According to a​ magazine, ​% of the​ world's solar energy cells are manufactured in one country. Consider a random sample of fiv
inna [77]

Answer:

The event x is a discrete random variable because the values of the random variable are countable and each possible outcome is equally likely

Step-by-step explanation:

A) Explaining why x is a discrete random variable

 The event x is a discrete random variable because the values of the random variable are countable and each possible outcome is equally likely. A discrete random variable is variable that contains a countable number of values contained in it and each value stands an equal chance i.e The probability of each value/outcome is between 0 and 1

8 0
4 years ago
Can somebody please help me on this?
vivado [14]
The fourth option, C=3L+50
7 0
3 years ago
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