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3 years ago

Clair thinks of a number n. she multiplies the number by itself. She then halves that answer and subtracts 10.

Mathematics

1 answer:

kkurt [141]3 years ago

7 0

(Just so you know, n^2 means n to the second power.)
n^2 / 2 - 10

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TRUE or FALSE.

Nesterboy [21]

Answer:

Yes that's true

Step-by-step explanation:

You add all of the points together and then divide by the number of assignments.

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3 years ago

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This is a picture of a cube and the net for the cube. What is the surface area of the cube?

mina [271]

Answer:

$486\ in^2$

Step-by-step explanation:

we know that

The surface area of the cube is equal to the area of its six square faces

$SA=6b^2$

where

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$b=9\ in$

substitute

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3 years ago

If the following fractions were converted to decimals, which one would result in a repeating decimal? A. 1/9 B. 3/4 C. 5/11 D. 3

Liono4ka [1.6K]

All of these fractions except $\frac{3}{4}$ become repeating decimals.

$\frac{1}{9}$ - 0.11111111....
$\frac{3}{4}$ - 0.75
$\frac{5}{11}$ - 0.454545454....
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4 years ago

Before a researcher specified the relationship among variables he must have a (an): A: Inventory of variables B: Inventory of pr

Lesechka [4]

Answer:

Option B

Step-by-step explanation:

Before a researcher specifies the relationship among variables he must have an inventory of propositions/constructs which are mostly stated in a declarative form. These are then tested by examining the relationships between measurable variables of this constructs/propositions.

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3 years ago

A group of hikers walks 3 miles east and then 1 mile north. After taking a break, they then hike 4 miles east to their final des

geniusboy [140]

Answer:

The vector that describes their hike from their starting position to their final destination is $\vec r = 7\,\hat{i}+1\,\hat{j}\,\,\,[mi]$ .

Step-by-step explanation:

In this problem we assume that orthogonal axes coincide with the north and east. We proceed to translate each sentence from statement into vectorial equations:

(i) A group of hikers walks 3 miles east and then 1 mile north:

$\vec r_{A} = 3\,\hat{i}+1\,\hat{j}\,\,\,[mi]$