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VladimirAG [237]
3 years ago
15

PLZZZ HELP Tell why these expressions are not polynomials

Mathematics
1 answer:
Marysya12 [62]3 years ago
6 0

Answer:

Step-by-step explanation:

In polynomials, variables will not have negative sign.

So,

26) 3n^{-2} + 2n + 23 \\\\28) 5x^{4}+\frac{1}{3x^{3}}\\\\29) \frac{5}{x^{n}}are not polynomials

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Do all of the digits in 8.88 have the same value? and explain why.
tester [92]

Answer:

No

Step-by-step explanation:

Mitochondria is the powerhouse of the cell

7 0
3 years ago
You ask 125 randomly chosen students to name their favorite foods. There are 1500 students in the school. Predict the number of
murzikaleks [220]

Answer:

1500/125=12

58x12=696

not sure

Step-by-step explanation:

5 0
3 years ago
Joanie's curtain company is making curtains for a local hotel. She wants each curtain to be 48 inches long. At the fabric store,
Dima020 [189]

Answer: 224 feet

Step-by-step explanation:

Each curtain is 48 inches long, and she wants to make 56 curtains.

However, the fabric store sells by the foot.

There are two ways to do this:

1) You can convert beforehand.

48 inches= 4 feet because 1 inch=1/2 foot.

Multiply 48 by 1/12 to find how many feet are in 48 inches.

= 48/12

=4

So 48 inches= 4 feet

Now, each curtain is 4 feet. There are 56 curtains to be made.

Now multiply by 4 to find how many feet are in 56 curtains.

56x4=224 feet.

Answer= 224 ft

Or: You can convert afterwards

48x56= how many inches in 56 curtains

= 2,688 inches

Then, convert to feet!

1 inch= 1/12 foot

2688 multiplied by 1/12:

=2688/12

=224 feet

Answer= 224 feet

Either way, you both get 224 feet.

7 0
3 years ago
every morning, halle goes to school with 1 liter bottle of water. she drinks 1/4 of the bottle before school starts and 2/3 of t
lorasvet [3.4K]

<em>The question doesn't have any requirement. I'll calculate the water Halle has left for lunch after drinking the rest.</em>

Answer:

<em>Halle has 250 ml of water for lunch</em>

Step-by-step explanation:

<u>Fractions and Proportions </u>

Fractions often express ratios between partial and total measures. In this context, 1/4 means 1 part out of 4 parts.

Halle goes to school with 1 liter of water in a bottle, she drinks 1/4 of the bottle before school starts. The bottle now has 3/4 of a liter of water

Halle drinks 2/3 of it before lunch, it means that the bottle has 1/3 of 3/4 left of the water. Since 1/3*3/4 = 1/4. That is the fraction of water still present in the bottle.

Since 1 liter is 1000 ml, Halle has 1/4*1000= 250 ml of water for lunch

6 0
3 years ago
Answer please will make first answer brainliest
galina1969 [7]

Answer:

The last one: 70/100 = x/80

And 56 free throws.

Explanation:

70% is 70 out of 100. And if the player is free throwing a total of 80 times, then 80 is 100% of the free throws. Both of the values that represent 100% are the denominators in the fractions.

\frac{70}{100} = \frac{x}{80}

The equations are equal, and whatever you do to the bottom, you have to do to the top. 100 was multiplied by 4/5 to get 80. So 70 is multiplied by 4/5 to get x.

4/5 * 70 is 56

8 0
3 years ago
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