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nikdorinn [45]
2 years ago
14

An expression is a mathematical phrase. Expressions are different from equations because they do not have values on both sides o

f an equal sign. An expression contains a combination of terms and operations. They can be as simple as 4 + 10. That expression has two terms (4 and 10) and one operation (addition). Which of these is a mathematical expression? A 1 - 15 B 1 and 15 C 1 - 15 = -14 D “Raining cats and dogs”
Mathematics
1 answer:
Marianna [84]2 years ago
8 0

Answer:

The answer is A. 1 - 15

Step-by-step explanation:

An expression is a mathematical phrase that contains terms and operations but no equal sign.

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The length of a swimming pool is 22ft. The width is 40ft.if the volume of the pool is 2,500 ft which equation below could be use
kvasek [131]
It could be twenty two times forty feet is equal to 2500 cubic feet since it is volume
4 0
3 years ago
F(x)=-5x. g(x)=8x^2-5x-9. Find: (f*g) (x)
Troyanec [42]
F(x) = -5x
g(x) = 8x² - 5x - 9

(f×g)(x) = ?
= ((-5x)(8x²-5x-9))
= -40x³ + 25x² + 45x → The answer Opsi D
5 0
3 years ago
Which equation graphs as a vertical line with an undefined slope? A) y = 3x B) x = 2 3 C) y = 2 3 D) y = − 2 3 x + 1
kenny6666 [7]

Answer:

<h2>B) x = 2/3</h2>

Step-by-step explanation:

y = a - horizontal line   (a - any real number) - slope = 0

x = a - vertical line   (a - any real number) - undefined slope

y = mx + b - diagonal line (m - any real number except 0, b - any real number) - m - slope

3 0
3 years ago
A candle burned at a steady rate. After 33 minutes, the candle was 11.2 inches tall. Eighteen minutes later, it was 10.75 inches
Amiraneli [1.4K]

Answer:

9.025 inches

Step-by-step explanation:

Let the length be represented by:

L = mt+L_0

Where L is the length of candle at time t

m is the rate at which the candle is burning.

And L_0 is the initial length of the candle.

As per the question statement, let us put the given values in the equation.

11.2 = m\times 33 + L_0 .... (1)\\10.75 = m\times 51+L_0 ..... (2)

Subtracting (1) from (2):

0.45 = -18m\\\Rightarrow m = -0.025

Putting the value of m in the equation (1):

11.2 = -0.025 \times 33+L_0\\\Rightarrow L_0 = 12.025

Therefore, the equation becomes:

L = -0.025t + 12.025

Now, we have to find the height of candle after 2 hours.

2 hours mean 120 minutes.

L = -0.025 \times 120 + 12.025\\\Rightarrow L = 9.025\ inches

Therefore, the height of candle is <em>9.025 inches</em>.

3 0
2 years ago
I'm BEGGING FOR HELP WITH THIS
Dmitrij [34]

Answer:

add 15 to both sides

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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