3 years ago

Evaluate 3n + 7, when n = 4 *

Mathematics

2 answers:

andrew11 [14]3 years ago

8 0

Answer:

Step-by-step explanation:

N=4

3N=12

12+7= 19

Lilit [14]3 years ago

7 0

3x4+7
12+7
19
The answer is 19

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What is the area of this figure?

Evgesh-ka [11]

Step-by-step explanation:

Area1=4×3=12cm²

Area2=6×3=18cm²

Area3=(6+3)×(12+4)=9×16=144cm²

Total area = area1 + area2 + area3

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3 years ago

There are two numbers such that sum of the numbers is 22 and the difference of their squares is 44. Find their difference.

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Answer:

10 and 12

Step-by-step explanation:

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4 years ago

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Ivanshal [37]

Answer:

A. Y=2x+3

Step-by-step explanation:

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3 years ago

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Viktor [21]

Answer:

720 ways

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Step-by-step explanation:

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3 years ago

An architect is sketching a blueprint of a patio for a new fence. On the blueprint, C is the midpoint of segment AD. Point B is

Gre4nikov [31]

Answer:

The length of AD is 32 feet

Step-by-step explanation:

Proportional distances

When distances are proportions of others, we can express all of them as relative fractions until we reach some known distance and solve for the desired length

Let's call x the length of AD. Given C is the midpoint of AD, then

$\displaystyle AC=CD=\frac{x}{2}$

Given B is the midpoint of AC, then

$\displaystyle AB=BC=\frac{AC}{2}=\frac{x}{4}$

If we know BC=8 feet

$\displaystyle \frac{x}{4}=8\ feet$

$\displaystyle x=32\ feet$

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3 years ago