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2 years ago

Solve using the standard algorithm the area model the distributive property or the partial products method 2,809x4

Mathematics

1 answer:

Assoli18 [71]2 years ago

5 0

Answer:

11,236

Step-by-step explanation:

i think this might be the answer but if it not alseat I try helping

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An architect is constructing a model building by using a ratio os 1:300. If the height of the scale model is 3 1/2 inches what i

atroni [7]

$\bf \cfrac{model}{actual}\qquad 1:300\qquad \cfrac{1}{300}\qquad \qquad \cfrac{3\frac{1}{2}}{a}=\cfrac{1}{300}\implies \cfrac{\frac{3\cdot 2+1}{2}}{a}=\cfrac{1}{300}
\\\\\\
\cfrac{\quad \frac{7}{2}\quad }{a}=\cfrac{1}{300}\implies \cfrac{\quad \frac{7}{2}\cdot 300\quad }{1}=a\implies 1050=a$

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3 years ago

Give the domain and range of the relation (10,-3),(12,3),(-8,-7),(6,-1)

Iteru [2.4K]

Domain: {10, 12, -8, 6}

Range: {-3, 3, -7, -1}

There is one value of y for every value of x.

This relation is a function.

6 0

2 years ago

Simplify expression -6-2(3x+8)

KIM [24]

Answer:

-6x-22

Step-by-step explanation:

-6 -2 (3x + 8)

Distribute the 2.

-6 -6x -16

Rewrite the expression.

-6x -6 - 16

Subtract -6 from 16.

The answer is -6x-22

5 0

3 years ago

What is 2x + 11y when x = 4 and y = 2? A. 30 B. 38 C. 48 D. 136

Alla [95]

The correct answer is A

6 0

3 years ago

Read 2 more answers

Given two vectors A=2i+3j+4k,B=i-2j+3k find the magnitude and direction of sum (physics question)

Law Incorporation [45]

Answer:

$Magnitude =\sqrt{59} \\\\Direction \: of \: \overrightarrow{A + B} = \frac{3}{\sqrt {59}} , \:\frac{1}{\sqrt {59}} , \:\frac{7}{\sqrt {59}}$

Step-by-step explanation:

A=2i+3j+4k

B=i-2j+3k

Sum of the vectors:

A + B = 2i+3j+4k + i-2j+3k = 3i + j + 7k

$Magnitude =\sqrt{3^2 + 1^2+ 7^2} \\\\Magnitude =\sqrt{9+1+49} \\\\Magnitude =\sqrt{59}$

Direction of the sum of the vectors:

$\widehat{A + B} =\frac{\overrightarrow{A + B}}{Magnitude\: of \:\overrightarrow{A + B}} \\\\\widehat{A + B} =\frac{3i + j + 7k}{\sqrt {59}} \\\\\widehat{A + B} =\frac{3}{\sqrt {59}} i +\frac{1}{\sqrt {59}} j+\frac{7}{\sqrt {59}} k\\\\Direction \: of \: \overrightarrow{A + B} = \frac{3}{\sqrt {59}} , \:\frac{1}{\sqrt {59}} , \:\frac{7}{\sqrt {59}} \\\\$

3 0

2 years ago