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3 years ago

15

maria can shovel snow from her driveway in 45 minutes. Jim can do the same job in 40 minutes. How long would it take Sue and Jim

to shovel the driveway if they worked together?

1 answer:

zhuklara [117]3 years ago

5 0

I am pretty sure the answer is 28.7 min.

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What is the equation of the graph below?

IgorC [24]

ANSWER

$f(x) = (x + 3)^{2} - 1$

EXPLANATION

The vertex of the graph is at

$(-3,-1)$

The equation of the graph in vertex form is given by the formula,

$f(x) = a{(x - h)}^{2} + k$

The above graph has a minimum point, hence
$a > \: 0$

When we put these values into the equation we obtain,

$f(x) = a(x - - 3)^{2} + - 1$

This implies that,

$f(x) = a(x + 3)^{2} - 1$

The point (-2,0) lies on the line.

$a( - 2 + 3)^{2} - 1 = 0$

$a = 1$

$f(x) = (x + 3)^{2} - 1$

The correct answer is D.

6 0

4 years ago

Sergio's internet provider charges its customers $9 per month plus 4¢ per minute of on-line usage. Sergio received a bill from t

Degger [83]

$81.40-$9.00=$72.40
$72.40/.4 (cents)= 181 minutes

8 0

3 years ago

Simple interest: I= PRT solve for r

garri49 [273]

I = PRT....for R....divide both sides by PT

I / PT = R <==

4 0

3 years ago

Read 2 more answers

Graph the function f(x)=3/2x−4. Use the line tool and select two points to graph.

iris [78.8K]

Answer:

Two points on the graph would be (2,-1) and (4,2).

Step-by-step explanation:

You can choose two random x variables such as how i selected 2 and 4. if you change the variable x to those values you can solve for y or in this case f(x).

EX:

3/2*2-4

6/2-4

3-4

f(x)= -1

4 0

3 years ago

Read 2 more answers

What is the correct factorization of 6x^2 -2x -20?<br> Please get correct!

Snezhnost [94]

→ 6x² - 2x - 20

→ 6x² + 10x - 12x - 20

→ x(6x + 10 ) - 2 (6x + 10)

→ (6x + 10) (x - 2) .

for

6x - 10 = 0

6x = 10

${x\:=\:\frac{5}{3}}\\$

for x - 2

x = 2

4 0

2 years ago