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3 years ago

A dilation has a center (0,0). Find the image of point B (7/5,-5,4) for the scale factor 1/6

Mathematics

1 answer:

AveGali [126]3 years ago

5 0

Answer:

Multiply the coordinate by the scale factor, 1/5 to get (7/25,-5/20). You can simplify this to (7/25, -1/4)

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If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin(a+b).

frutty [35]

Answer:

$sin(a+b)=\frac{4\sqrt{21}+2\sqrt{65}}{45}$

Step-by-step explanation:

we are given

$sin(a)=\frac{4}{9}$

$sin(b)=\frac{2}{5}$

Firstly, we will draw triangle

we get

$cos(a)=\frac{\sqrt{65} }{9}$

$cos(b)=\frac{\sqrt{21} }{5}$

now, we can sue formula

$sin(a+b)=sin(a)cos(b)+cos(a)sin(b)$

now, we can plug values

$sin(a+b)=\frac{4}{9}\times \frac{\sqrt{21} }{5}+\frac{\sqrt{65} }{9}\times \frac{2}{5}$

now, we can simplify it

$sin(a+b)=\frac{4\sqrt{21}+2\sqrt{65}}{45}$

6 0

3 years ago

2v + 18 = 16 - 4(v + 7)<br> please help, thank you

tia_tia [17]

Answer:

v=−5

Step-by-step explanation:

2v + 18 = 16 - 4(v + 7)

2v+18=16−4(v+7)

2v+18=16+(−4)(v)+(−4)(7)(Distribute)

2v+18=16+−4v+−28

2v+18=(−4v)+(16+−28)(Combine Like Terms)

2v+18=−4v+−12

2v+18=−4v−12

Add 4v to both sides.

2v+18+4v=−4v−12+4v

6v+18=−12

Subtract 18 from both sides.

6v+18−18=−12−18

6v=−30

Divide both sides by 6.

6v /6 = −30 /6

v=−5

8 0

3 years ago

(2 5/8 + 5/6 + 1 1/8

VLD [36.1K]

<h2> $2\dfrac{5}{8}+\dfrac{5}{6}+1\dfrac{1}{8}$ = $3\dfrac{19}{12}$ or, $\dfrac{55}{12}$ </h2>

Step-by-step explanation:

We have,

$2\dfrac{5}{8}+\dfrac{5}{6}+1\dfrac{1}{8}$

To find, the value of $2\dfrac{5}{8}+\dfrac{5}{6}+1\dfrac{1}{8}$ = ?

∴ $2\dfrac{5}{8}+\dfrac{5}{6}+1\dfrac{1}{8}$

= $2+\dfrac{5}{8}+\dfrac{5}{6}+1+\dfrac{1}{8}$

= $(2+1)+(\dfrac{5}{8}+\dfrac{5}{6}+\dfrac{1}{8})$

= 3 + $\dfrac{15+20+3}{24}$

= 3 + $\dfrac{19}{12}$

= $3\dfrac{19}{12}$ or, $\dfrac{55}{12}$

∴ $2\dfrac{5}{8}+\dfrac{5}{6}+1\dfrac{1}{8}$ = $3\dfrac{19}{12}$ or, $\dfrac{55}{12}$

6 0

3 years ago

Yyoooo free moneys follow me if you want more free moneyyy

Mkey [24]

Answer:

I do!

Step-by-step explanation:

Thx!

4 0

3 years ago

Read 2 more answers

Use the graph method to solve the system of linear equations:<br><br> 2x + y = 3 and x + y = 3

Igoryamba

It’s (0,3).
If you graph this by hand or using a graphing calculator you can see that the lines intersect at (0,3) so that is your answer

4 0

3 years ago

A dilation has a center​ (0,0). Find the image of point B (7/5,-5,4) for the scale factor 1/6

A dilation has a center (0,0). Find the image of point B (7/5,-5,4) for the scale factor 1/6