All categories

3 years ago

Which algebraic expression below shows

Mathematics

1 answer:

Tcecarenko [31]3 years ago

8 0

Answer:

Step-by-step explanation:

When an expression is reflected across the x-axis, the x values stay the same but the y values are now negative.

You might be interested in

Find the y=a(b)^x form for the exponential function passing through points (1,48) and (3,12)

ale4655 [162]

Answer:

y = 96 * (1/2)ˣ or

y = (-96)*(-1/2)ˣ

Step-by-step explanation:

y=a(b)ˣ

pass (1 , 48): 48 = a * b¹ ab = 48 ...(1)

pass (3 , 12): 12 = a * b³ ab³ = 12 ...(2)

(2)/(1): ab³/ab = b² = 12/48 = 1/4

b = 1/2 or b = - 1/2

a = 96 or a = -96

4 0

3 years ago

Isla flipped a coin 30 times. The coin landed heads up 9 times and tails up 21 times.

Debora [2.8K]

Answer:

both are equal

Step-by-step explanation:

there are two side tails and heads so there a 1/2 chance it will land on heads

8 0

3 years ago

Mitchell has $17000 to put towards a car. He wants to invest this money in an account paying 3.3%/a

arsen [322]

Answer:

He can afford the monthly payment of the Ford car since his accumulated interest after 5 years is greater than the amount the Ford will cost

Step-by-step explanation:

For the Ford

There are 60 months in 5 years so the total amount he will be paying is 60 * 299 = $17,940

For the Volkswagen, amount to pay will be 60 * 389 = $23,340

Now to see the payment he can afford, let’s calculate the amount he will have in his savings

We shall use the formula for compound interest here

A = I(1 + r/n)^nt

where A is the amount after the

number of years

I is the initial amount = 17,000

r is the rate = 3.3% = 3.3/100 = 0.033

n is the

number of times interest is compounded per year = 12

t = number of years = 5

plugging these values we have

A = 17,000(1 + 0.033/12)^12(5)

A = 17,000( 1.00275)^60

A = $20,045

This shows he can afford the Ford

5 0

3 years ago

How many solutions will this system of equations have? y = 3.5x − 3.5 y = −3.5x + 3.5

icang [17]

We have that
<span>y = 3.5x − 3.5
y =−3.5x + 3.5

using a graph tool
see the attached figure

the solution is the point (1,0)
x=1
y=0

the answer is
one solution</span>

3 0

3 years ago

Solve the equation 9%-6.375. Answer in fractions.

IRINA_888 [86]

Answer: -6 $\frac{57}{200}$

Step-by-step explanation:

9% = .09

.09-6.375 = −6.285

6.285 = 6.285/1 = 62.85/10 = 628.5/100 = 6285/1000

GCF = 5, 1257/200 = 6 $\frac{57}{200}$

-6 $\frac{57}{200}$

-6.285 = -6 $\frac{57}{200}$

6 0

4 years ago