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GenaCL600 [577]
4 years ago
8

Question 10 help me pleas

Mathematics
2 answers:
Fudgin [204]4 years ago
4 0
11/16 i believe ! :)
charle [14.2K]4 years ago
3 0
The answer is 11/16 i think
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It cost Cai $1,80 to send 12 text messages, How much would it cost to send 90 text<br> messages?
Kipish [7]

Answer:

$13.5

Step-by-step explanation:

cost of 1 text message= $1.80÷12 =$0.15

cost of 90 messages = $0.15×90 = $13.5

3 0
2 years ago
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Given the trinomial, what is the value of the coefficient B in the factored form? 2x2 + 4xy − 48y2 = 2(x + By)(x − 4y) −12 12 −6
Sonja [21]

Answer:

B is 6.

Step-by-step explanation:

We are trying to find a value for B such that:

2x^2+4xy-48y^2=2(x+By)(x-4y) is true for every x,y.

So let's choose x=0,y=1:

2(0)^2+4(0)(1)-48(1)^2=2(0+B(1))(0-4(1))

2(0)+0-48=2(B)(-4)

0-48=-8B

-48=-8B

Divide both sides by -8:

\frac{-48}{-8}=B

6=B

B=6

Note: I didn't want to choose y to be 0 because the value of B would disappear from the equation. So you should be able to have chosen any x and y except for y=0 to solve the equation for B.

Check:

So let's check and use foil to multiply out the right hand side.

(x+6y)(x-4y)

x(x)+x(-4y)+6y(x)+6y(-4y)

x^2-4xy+6xy-24y^2

x^2+2xy-24y^2

There was a 2 in front of that multplicapltiation:

2(x+6y)(x-4y)

2(x^2+2xy-24y^2)

2x^2+4xy-48y^2

This is exactly what we have on the left hand side of your given equation.

3 0
4 years ago
(PLEASE DO ASAP, I"LL GIVE BRAINLIEST)
Svetlanka [38]

Answer:

B and D

Step-by-step explanation:

first of all, b has nothing so that's automatically out. And it's given that 'ratio of a to b' so it has to be A to B not B to A because that's like saying ; 'which one is 1:2? 1:2 or 2:1?' (obviously 1:2). Hope that makes sense!

6 0
3 years ago
Help I’ll give brainliest
Helga [31]

Answer:

30 minutes

Step-by-step explanation:

The hare and tortoise meet in 30 minutes at 240 feet.

3 0
3 years ago
Read 2 more answers
For each diagram below, determine the value of, x if possible. If the triangles are congruent, a state which triangle congruence
Leto [7]

Answer:

The Triangles are congruent by Angle-Side-Angle.

x would equal 4 because the triangles are congruent.

Step-by-step explanation:

7 0
3 years ago
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