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3 years ago

14

Can someone plz help me with my geometry pleaseee

1 answer:

gizmo_the_mogwai [7]3 years ago

3 0

Answer:

B'= (0,7)

E'= (3,6)

A'= (5,3)

R'= (2,1)

S'= (-1,4)

Step-by-step explanation:

Add 6 to all x's and add 8 to all y's.

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Find the solutions to the equation. Select ALL that apply.

alisha [4.7K]

Answer:

0

Step-by-step explanation:

-3y(2y+5)=0

-6y+15y=0

9y=0

y=0÷9

y=0

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3 years ago

What number is 22% of 320

Lostsunrise [7]

70.4
The word "of" means to multiply, so 22% or .22 * 320 = 70.4

7 0

3 years ago

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This is just the answers to something I didn’t finish putting in all the answers for yet

Phoenix [80]

Answer:

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Step-by-step explanation:

I don't think I was supposed to answer anything but if so tell me

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2 years ago

An insecticible contains 85 centigrams of inert ingredient for every 1 centigram of active ingredient. if a quantity of the weig

11111nata11111 [884]

(85/86)*688 cg = 680 cg . . . inert ingredient
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3 years ago

PLEASE HELP HURRY!!!!!!!

Charra [1.4K]

As it has been given that $x=4+5i$ , $y=2-9i$ .

We need to find the value of the following:

(i) $4x-y$ , substituting the value of 'x' and 'y' in the expression, we get:

$4(4+5i)-(2-9i)=4\times 4+4\times 5i-2+9i=16+20i-2+9i$

$=14+29i$

So, $4x-y=14+29i$

(ii) $-x+3y$ , substituting the value of 'x' and 'y' in the expression, we get:

$-(4+5i)+3(2-9i)=-4-5i+3\times 2-3 \times 9i=-4-5i+6-27i$

$=2-32i$

So, $-x+3y=2-32i$

(iii) $x \times y$ , we need to substitute the value of 'x' and 'y' in the expression, for this, we can use distributive property of multiplication that says,

$a(b+c)=a \times b+ a \times c$

Using the distributive property of multiplication:

$(4+5i)\times(2-9i)=4 \times 2-4 \times 9i+5i \times 2-5i \times 9i$

$=8-36i+10i-45i^2$

Now, we know that $i \times i=i^2=-1$

We get, $8-36i+10i-45 \times (-1)=8-26i+45$

$=8+45-26i=53-26i$

Therefore, $x \times y$ = $53-26i$ .

(iv) We have, $2x \times y$ , we need to substitute the value of 'x' and 'y' in the expression, we get:

$2(4+5i)\times (2-9i)$

Again, we can use distributive property of multiplication that says,

$a(b+c)=a \times b+ a \times c$

So,

$2(4+5i) \times (2-9i)=2\times 4+2 \times 5i\times(2-9i)$

$=8+10i \times(2-9i)=8\times 2-8 \times 9i+10i \times 2-10i \times 9i$

$=16-72i+20i-90i^2$

since, $i^2=-1$

we get,

$16-72i+20i-90 \times (-1)=16-52i+90$

$=106-52i$

Therefore,

$2x \times y=106-52i$

7 0

3 years ago

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