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xxMikexx [17]
2 years ago
11

Help me I need to be done pls

Mathematics
2 answers:
sammy [17]2 years ago
4 0

Answer:

im not 100% sure but i think 1.5

Step-by-step explanation:

sry if not

jasenka [17]2 years ago
3 0

Answer:

-3

___

 2

Step-by-step explanation:

9-(4-1)^2

______

8-2^2

9-(16-1)

______

8-4

9-15

_____

4

-6

___

4

=-3

------

2

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A cab charges $1.50 for the first mile and $0.50 for each additional mile. Write and solve an inequality to determine how many m
ValentinkaMS [17]
1.50 + 0.50(x-1) <u><</u> 25 

1.50 + 0.50x - 0.50 <u><</u> 25
1 + 0.50x <u><</u> 25
<u>-1                 -1</u>
      0.50x <u><</u> 24
  <u>    ÷0.50    ÷0.50</u>
               x <u><</u> 48

1.50 + 0.50x <u><</u> 25 ; x <u><</u> 47 miles     3rd option in the choices.

To check:

1.50 + 0.50(47) <u><</u> 25
1.50 + 23.50 <u><</u> 25
25 <u><</u> 25
5 0
3 years ago
Express the following ratio in its simplest form.<br> 4:12
jeka94

Answer:

3:12

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Answer please I’m dying from math
charle [14.2K]

Answer:

\huge\boxed{\text{D)} \  15x^4 + 2x^3 - 8x^2 - 22x - 15}

Step-by-step explanation:

We can solve this multiplication of polynomials by understanding how to multiply these large terms.

To multiply two polynomials together, we must multiply each term by each term in the other polynomial. Each term should be multiplied by another one until it's multiplied by all of the terms in the other expression.

  • <em>We can do this by focusing on one term in the first polynomial and multiplying it by </em><em>all the terms</em><em> in the second polynomial. We'd then repeat this for the remaining terms in the second polynomial.</em>

Let's first start by multiplying the first term of the first polynomial, 3x^2, by all of the terms in the second polynomial. (5x^2+4x+5)

  • 3x^2 \cdot  5x^2 = 15x^4
  • 3x^2 \cdot 4x = 12x^3
  • 3x^2 \cdot 5 = 15x^2

Now, we can add up all these expressions to get the first part of our polynomial. Ordering by exponent, our expression is now

  • \displaystyle 15x^4 + 12x^3 + 15x^2

Now let's do the same with the second term (-2x) and the third term (-3).

  • -2x \cdot 5x^2 = -10x^3  
  • -2x \cdot 4x = -8x^2
  • -2x \cdot 5 = -10x
  • Adding on to our original expression: \displaystyle 15x^4 + 12x^3 - 10x^3 + 15x^2 - 8x^2 - 10x

  • -3 \cdot 5x^2 = -15x^2
  • -3 \cdot 4x = -12x
  • -3 \cdot 5 = -15
  • Adding on to our original expression: \displaystyle 15x^4 + 12x^3 - 10x^3 + 15x^2 - 8x^2 - 15x^2 - 10x - 12x - 15

Phew, that's one big polynomial! We can simplify it by combining like terms. We can combine terms that share the same exponent and combine them via their coefficients.

  • 12x^3 - 10x^3 = 2x^3
  • 15x^2 - 8x^2 - 15x^2 = -8x^2
  • -10x - 12x = -22x

This simplifies our expression down to 15x^4 + 2x^3 - 8x^2 - 22x - 15.

Hope this helped!

7 0
2 years ago
Read 2 more answers
The length of the hypotenuse of a 30°-60°-90° triangle is 16. What is the perimeter?
Tresset [83]

Answer:

-126

Step-by-step explanation:

I used a calculator:3

5 0
2 years ago
I need help asap!!!!!! pleaseeeee
sattari [20]

Find the area of the circle then, multiply that by the height of the cylinder.

Area of a circle = PI x r^2

Area = PI x 8^2 = 64PI

Volume = 64PI x 11 = 704PI in^3

3 0
3 years ago
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