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3 years ago

5

maria bought 7 boxes. a week later half of all her boxes were destroyed in a fire. there are now only 22 boxes left. with how ma

ny did she start

2 answers:

VashaNatasha [74]3 years ago

8 0

Answer:

29

Step-by-step explanation:

x=22+7

x=29

timurjin [86]3 years ago

6 0

29 is the answer pretty sure

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Solve the system of equation by guess sidle method

lilavasa [31]

Answer: The solution is,

$x_1\approx 0.876$

$x_2\approx 0.419$

$x_3\approx 0.574$

Step-by-step explanation:

Given equations are,

$8x_1 + x_2 + x_3 = 8$

$2x_1 + 4x_2 + x_3 = 4$

$x_1 + 3x_2 + 5x_3 = 5$ ,

From the above equations,

$x_1=\frac{1}{8}(8-x_2-x_3)$

$x_2=\frac{1}{4}(4-2x_1-x_3)$

$x_3=\frac{1}{5}(5-x_1-3x_2)$

First approximation,

$x_1(1)=\frac{1}{8}(8-(0)-(0))=1$

$x_2(1)=\frac{1}{4}(4-2(1)-(0))=0.5$

$x_3(1)=\frac{1}{5}(5-1-3(0.5))=0.5$

Second approximation,

$x_1(2)=\frac{1}{8}(8-(0.5)-(0.5))=0.875$

$x_2(2)=\frac{1}{4}(4-2(0.875)-(0.5))=0.4375$

$x_3(2)=\frac{1}{5}((0.875)-3(0.4375))=0.5625$

Third approximation,

$x_1(3)=\frac{1}{8}(8-(0.4375)-(0.5625))=0.875$

$x_2(3)=\frac{1}{4}(4-2(0.875)-(0.5625))=0.421875$

$x_3(3)=\frac{1}{5}(5-(0.875)-3(0.421875))=0.571875$

Fourth approximation,

$x_1(4)=\frac{1}{8}(8-(0.421875)-(0.571875))=0.875781$

$x_2(4)=\frac{1}{4}(4-2(0.875781)-(0.571875))=0.419141$

$x_3(4)=\frac{1}{5}(5-(0.875781)-3(0.419141))=0.573359$

Fifth approximation,

$x_1(5)=\frac{1}{8}(8-(0.419141)-(0.573359))=0.875938$

$x_2(5)=\frac{1}{4}(4-2(0.875938)-(0.573359))=0.418691$

$x_3(5)=\frac{1}{5}(5-(0.875938)-3(0.418691))=0.573598$

Hence, by the Gauss Seidel method the solution of the given system is,

$x_1\approx 0.876$

$x_2\approx 0.419$

$x_3\approx 0.574$

4 0

3 years ago

Graph y=1x. Sketch the graph below.

vagabundo [1.1K]

The phrases that fit the graph of $y = \sqrt x$ are

curve positive x-values
point (1, 1) x-intercept = 0
quadrant I y-intercept = 0

<h3>How to select the phrases</h3>

The equation of the function is given as:

$y = \sqrt x$

Next, we plot the graph of the function (see attachment)

From the attached graph, we have the following highlights:

All points are in quadrant I
The function is a curve
It has an x-intercept of x = 0
It has a y-intercept of y = 0
It has only positive x values
It passes through (1,1)

The above represents the phrases that fit the graph

Read more about features of a function at:

brainly.com/question/27771165

#SPJ1

<h3>Complete question</h3>

Using a graphing application, graph y = √x. Sketch the graph below.

Select all phrases that fit the graph of y = √x

curve straight y-intercept = 1 positive x-values

quadrant IV quadrant III point (1, 1) x-intercept = 0

quadrant I y-intercept = 0 no y-intercept negative y-values

no x-intercept quadrant II x-intercept = 1 point (-1, -1)

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2 years ago

FUTURE SMART QUESTION +25 POINTS PKEASE ANSWER

Rufina [12.5K]

Answer:

18750

Step-by-step explanation:

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3 years ago

If ST≅SV and m∠SUT=68°, what is m∠TUV?

artcher [175]

Answer:

136

Step-by-step explanation:

Take 68 x 2 since the side lengths are equal.

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3 years ago

Solve the system by elimination.<br> -8X – 10y = 20<br> -8x – 6y = -4

In-s [12.5K]

Answer:

(5, - 6 )

Step-by-step explanation:

Given the 2 equations

- 8x - 10y = 20 → (1)

- 8x - 6y = - 4 → (2)

Multiply (2) by - 1

8x + 6y = 4 → (3)

Add (1) and (3) term by term to eliminate the x- term, that is

- 4y = 24 ( divide both sides by - 4 )

y = - 6

Substitute y = - 6 into either of the 2 equations and solve for x

Substituting into (1)

- 8x - 10(- 6) = 20

- 8x + 60 = 20 ( subtract 60 from both sides )

- 8x = - 40 ( divide both sides by - 8 )

x = 5

solution is (5, - 6 )

6 0

3 years ago