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3 years ago

Im crying plz helpme nooooooooooooooooooo aaaaaaaaaaaaaaaa

Mathematics

2 answers:

insens350 [35]3 years ago

5 0

Answer:

Step-by-step explanation:

wariber [46]3 years ago

4 0

Answer:

11 or C

Step-by-step explanation:

We have to find the zeros, so we set h(t) as 0 and solve for t. Solving we get t=-3 or 11. Since the time cannot be negative, we have t=11.

Can you mark me BRAINLIEST?

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Taylor earned $48 for 6 hours of babysitting and $68 for 8.5 hours of babysitting. How long would she have to babysit to earn $3

ZanzabumX [31]

48÷6=$8 per hour
So
32÷8=4 hours

6 0

3 years ago

Tourists covered 640 km for a 4 hour ride by car and a 7 hour ride by train. What is the speed of the train, if it is 5 km/h gre

gavmur [86]

Answer:

60 km/h

Step-by-step explanation:

Let us use the x to represent the speed of the car since it is the smaller value.

Then, the distance covered by the car is 4x since was going 4 kph.

The distance covered by the train is (x+5) times 7 or 7x+35.

We know that the total distance covered is 640 km.

Using this information, we can set up the equation 4x+7x+35=640.

By subtracting both sides by 35 and combining the x's, we get a new equation of 11x=605.

After this, we divide both sides by 11 and get x=55.

Lastly, we add 5 to 55 since the train is 5 km faster than the car and that x stood for the car.

Train=60 km/h

5 0

3 years ago

Please help with this and explain how to do it, I'll give 15 points

MrRissso [65]

Answer:

Option (4).

Step-by-step explanation:

Outer diameter of the hollow metallic ball = 10 centimeters

Outer radius of this ball = $\frac{10}{2}$ = 5 cm

Volume of the outer ball $V_{1}$ = $\frac{4}{3}\pi (r)^3$

= $\frac{4}{3}\pi (5)^3$

Inner radius of the hollow metallic ball = (5 - 1) = 4 cm

Volume of the inner hollow ball $V_{2}$ = $\frac{4}{3}\pi (4)^3$

Volume of the metal used in the metallic ball = $V_{1}-V_{2}$

= $\frac{4}{3}\pi (5)^3-\frac{4}{3}\pi (4)^{3}$

= $\frac{4}{3}\pi [(5)^3-(4)^3]$

Therefore, expression given in option (4) will be used to measure the volume of the hollow metallic ball.

8 0

3 years ago

The table shows the hours Gina worked during October and November. Select ALL correct statements.

Vladimir79 [104]

124 would be the smartest choice

3 0

3 years ago

HELP ME PLEASE ON THIS

Anvisha [2.4K]

The answer is [ all real numbers ]

The domain are the input values which makes the function defined and real.

Since we don't have any constraints or any undefined points, the domain could be literally anything. Thus proves out answer.

Best of Luck!

5 0

4 years ago

Read 2 more answers