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3 years ago

Whats a+2 over 2=-1 ??

1 answer:

8 0

Not sure what exactly you meant, so i solved for both possibilities...

Answer: a=-2

assuming you mean a+2/2=-1.....

a+2/2=-1
simplify..
a+1=-1
subtract 1 from both sides
a=-2
____________________

Answer: a=-4

assuming you mean (a+2)/2=-1...

(a+2)/2=-1
simplify...
a/2+2/2=-1
simplify
a/2+1=-1
subtract 1 from both sides
a/2=-2
multiply both sides by 2
a=-4

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If (-1, y) lies on the graph of y=2^2x then y=

zubka84 [21]

Answer:

y is 1/4 when x is -1 if I did interpret your equation right. Please see that I did.

I believe the equation to be $y=2^{2x}$ . If you meant $y=2^2x$ , please let me know.

Thanks kindly.

Step-by-step explanation:

If (-1,y) lies on the graph of $y=2^{2x}$ , then by substitution we have:

$y=2^{2\cdot -1}$ .

We just need to simplify to determine y:

$y=2^{2 \cdot -1}$

Multiply the 2 and -1:

$y=2^{-2}$

Use reciprocal rule for exponents to get rid of the negative:

$y=\frac{1}{2^2}$

$2^2$ just means $2(2)$ :

$y=\frac{1}{2(2)}$

$y=\frac{1}{4}$ .

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2 years ago

The students at Midtown Middle school sold flowers as a fundraiser in September and October. In October, they charged $1.50 for

zalisa [80]

The answer is one dollar and 45 cents

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3 years ago

Which equation is written in slope-intercept form?

dlinn [17]

Answer:

y=3x+2

Step-by-step explanation:

slope intercept form

y=mx+b

y=y coordinate

m=slope

x=x coordinate

b= y-intercept

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3 years ago

Sketch. Kite qrst has a short diagonal of qs and a ling diagonal of rt. The diagonals intersect at point p. Side qr=5 m and diag

In-s [12.5K]

<u>Answer</u>
4m

<u>Explanation</u>
Δqrp is a right triangle.
If ps = 6m then, qp = 3m. So we can find line pr using pythagoras theorem.
rp = √(5²-3²) = √16 = 4m

The Δqrp≡Δqtp.

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3 years ago

A bag has 9 blue marbles, 7 red marbles, 4 green marbles

scoundrel [369]

Answer:

7/25

Step-by-step explanation:

First we need to determine how many total marbles

9blue+7red+4green+5purple = 25 marbles

P(red) = red/total

= 7/25

7 0

3 years ago

Read 2 more answers