3 years ago

Pls help fast!!! giving 20 points!!!

Mathematics

1 answer:

tester [92]3 years ago

5 0

It’s y=2x-6 for sure

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A cubical block of metal weighs 6 pounds. How much will another cube of the same metal weigh if its sides are twice as long?

ser-zykov [4K]

I believe it would be 12, I believe this because its states that it is TWICE as long therefore is made from the same metal so 6x2=12

8 0

3 years ago

You are studying for your final exam of the semester. up to this point, you received 3 exam scores of 67%, 68%, and 78℅. to rece

scoray [572]

(67 + 68 + 78 + x) / 4 = 70
(213 + x) / 4 = 70
213 + x = 70 * 4
213 + x = 280
x = 280 - 213
x = 67

(213 + x) / 4 = 79
213 + x = 79 * 4
213 + x = 316
x = 316 - 213
x = 103

lowest u can make is 67, highest u can make is 100

4 0

3 years ago

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Verify the identity. cotangent x equals StartFraction 1 plus cosine 2 x Over sine 2 x EndFractioncot x= 1+cos2x sin2x Use the ap

lutik1710 [3]

Answer with Step-by-step explanation:

We are given that

RHS

$\frac{1+Cos2x}{Sin2x}$

We have to verify the identity.

We know that

$1+Cos2x=2Cos^2 x$

$Sin2x=2SinxCos x$

Using the formula

$\frac{2Cos^2x}{2SinxCosx}$

$\frac{Cosx}{Sinx}$

$Cot x$

By using the formula

$Cotx=\frac{Cosx}{Sinx}$

LHS=RHS

Hence, verified

6 0

3 years ago

An item that usually sells for $189 is on sale for 25% off. Find the sale price

9966 [12]

Answer:

$141.75

Step-by-step explanation:

189*.75

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3 years ago

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Can some please help me

lianna [129]

Answer: (-1, -3)

Step-by-step explanation:

x: -2= (-3 + x)/2 y: 5 = (7 + y)/2

-4= -3 + x 10= 7 + y

-1 =x -3 = y

(-1,-3)

7 0

3 years ago