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3 years ago

WHERE DID CAROLYN MESS UP?

Mathematics

1 answer:

Anuta_ua [19.1K]3 years ago

6 0

Answer:

line 2 of her working

Step-by-step explanation:

when multiplying the brackets out it is a negative times posative so she should have wrote -4 not +4

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Complete the table of values for y=6-2x Also please work out 6-2x=3

Whitepunk [10]

Answer:

Step-by-step explanation:

x=0 y=6-2*0=6

x=1 y=6-2*1=4

x=2 y=6-2*2=2

x=3 y=6-2*3=0

6-2x=3

-6 -6

-2x=-3

2x=3

:2 :2

x=3/2

x=1.5

3 0

3 years ago

Find the equivalent exponential expression. (7^4)^5

Nikolay [14]

Hi!

To solve exponental equations, multiply the exponents.
4·5=20

The answer is $7^{20}$

Hope this helps! :)
-Peredhel

6 0

2 years ago

Read 2 more answers

What is the math term for you taking parentheses away?

TEA [102]

You might be thinking of "distribution" or "distributive property"

Example:

2(3x+5) = 2*3x+2*5 = 6x+10

I multiplied the outer 2 by each term inside (3x and 5)

4 0

3 years ago

Read 2 more answers

What is the value of a in the polynomial

Alexandra [31]

Answer: a= 16

Step-by-step explanation:

We have the following expression:

$(y-4)(y^2 +4y +16)$

To find the value of the coefficient "a" you must use the distributive property to multiply the expression:

$(y-4)(y^2 +4y +16)$

until you transform it to the form:

$y^3 +4y^2 +ay -4y^2 -ay-64$

Then we have

$(y-4)(y^2 +4y +16)\\\\(y^3 +4y^2 +16y -4y^2 -16y-64)\\\\$

Therefore the value of a in the polynomial is 16

5 0

2 years ago

Identify the angle of depression. 3 6 4 5

dsp73

Answer: Angle 4

Step-by-step explanation:

The angle of depression is formed by the line of sight and the horizontal line tangent to the top of the observer.

5 0

1 year ago