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3 years ago

Please help me with this question

Mathematics

2 answers:

Iteru [2.4K]3 years ago

5 0

Answer: E) w = (t+8)/3

Step-by-step explanation:

Solve for w in terms of t means you have to isolate w. Thus, simply do the following:

$3w-8=t\\3w=t+8\\w=\frac{t+8}{3}$

Hope it helps <3

romanna [79]3 years ago

3 0

Answer:

Step-by-step explanation:

so first you would add 8 to both sides to get

3w = t + 8

then divide both sides by 3

w = (t + 8) / 3

So the answer is E.

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Since BC is parallel to DE, triangles ABC and ADE are similar. What are the lengths of the unknown sides?

Yuri [45]

Answer:

Option D. AC= 10 cm and CE= 5 cm

Step-by-step explanation:

From the given figure two triangles ΔABC and ΔADE are similar and two lines BC║DE.

From these similar triangles we know

$\frac{AB}{AD}=\frac{BC}{DE}=\frac{AC}{AE}$

$\frac{8}{12}=\frac{BC}{9}=\frac{AC}{AE}$

Therefore $\frac{AC}{AE}=\frac{8}{12}=\frac{2}{3}$

Or AC= $\frac{2}{3}AE$

Now from pythagoras theorem

AE = √(AD²+ED²) = √(12²+9²) = √(144+81) =√225 = 15 cm

Since we know side AC = $\frac{2}{3}AE$

= $\frac{2}{3}\times 15$

= 10 cm

Therefore AC = 10 cm and AE = 15cm and CE = (15-10) = 5 cm

8 0

3 years ago

Why does.the equation y=3x+5 NOT represent a proportional relationship

sergiy2304 [10]

Answer:

The equation not represent a proportional relationship because the line don't passes through the origin

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $k=\frac{y}{x}$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

In this problem we have

$y=3x+5$

This is the equation of the line in slope intercept form

where

the slope is m=5

the y-intercept is b=5

Remember that in a proportional relationship the value of b must be equal to zero (because the line passes through the origin)

therefore

The equation not represent a proportional relationship because the line don't passes through the origin

5 0

3 years ago

CAN U PLZ HELP THANK YOU

Ulleksa [173]

Answer

second one

Step-by-step explanation:

3 0

3 years ago

16 points PLZ HELP which equation represents the function graphed on the coordinate plane

maksim [4K]

It’s the second one. The one that is g(x) = |x + 3| — 1

5 0

3 years ago

Read 2 more answers

Solve the equation below for x. −12(3x−4)=11 A. −1323 B. −813 C. −6 D. 6

geniusboy [140]

-1/2( 3x -4) = 11

Use distributive properties:

-3/2 + 2,= 11

Subtract 2 from both sides:

-3/2x = 9

Divide both sides by -3/2

X = 9/ -3/2

X = -6

The answer is c. -6

3 0

3 years ago