3 years ago

How I do this someone ples help I need help with 25 and 27.

Mathematics

1 answer:

marta [7]3 years ago

8 0

Number 15 is no solution.

Number 27 is that x has to be between -2 or 2.

This could be explained as -2≤x≤2

You might be interested in

Can y'all help me with this math questions I have school in 30 mins and I can't do it quickly please help

Anon25 [30]

I'm sorry idek ques 2 and 3

8 0

2 years ago

Read 2 more answers

? A mug can hold 13.46 oz of coffee without overflowing. The radius of the mug is 3 cm. Given that 1 cm3 equals 0.034 oz, what i

Elan Coil [88]

Answer:

14 cm

Step-by-step explanation:

Given:

A mug can hold 13.46 oz of coffee.

The radius of the mug is 3 cm.

Given that 1 $cm^{3}$ equals 0.034 oz.

Question asked:

What is the height of the mug to the nearest centimeter ?

Solution:

Given that 1 $cm^{3}$ equals 0.034 oz.

By unitary method:

0.034 oz = 1 $cm^{3}$

1 oz = $\frac{1}{0.034}$

13.46 oz = $\frac{1}{0.034}\times13.46 =395.88 \ cm^{3}$

A mug can hold 13.46 oz of coffee means volume of cylinder is given which is 395.88 $cm^{3}$ . Now we can find the height of the mug by using volume of cylinder formula:

volume of cylinder = $\pi r^{2} h$

$395.88=\frac{22}{7} \times3\times3\times \ h\\395.88=\frac{198 \ h}{7}$

By cross multiplication:

$395.88\times 7 =198\ h\\2771.16= 198\ h$

By dividing both side by 198

$h = 13.99$ $cm$

Therefore, height of the mug to the nearest centimeter is 14 cm.

6 0

3 years ago

Read 2 more answers

In rectangle PQRS, PR = 18 x - 24 and QS = x + 146, find the value of x and the length of

Anna [14]

Answer:

The answer is the first one, A

Step-by-step explanation:

8 0

3 years ago

Betty has several of the standard six-sided dice that are common in many board games. If Betty rolls one of these dice, what is

diamong [38]

Since she is rolling 1 six sided dice the chances of her rolling a 3 are 1:6 because, she is trying to land on 3 not 3 numbers.

7 0

3 years ago

Each part of a race is 1/10 mile long. Marsha finished 5 part of the race.How far did marsha race?

andre [41]

We can multiply the number of parts Marsha has finished by the miles of each part:

5 × 1/10

= 5/10

=1/2

Therefore, she raced 1/2 miles.

Hope it helps!

5 0

3 years ago