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Lorico [155]
3 years ago
10

Simplify -15.5/5. A −3.1 B 3.1 C −3.3 D 3.3

Mathematics
1 answer:
miskamm [114]3 years ago
6 0
The answer is C because a negative divided by positive is a negative
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Which one best matches the graph?<br> A)y=x+6<br> B)y=-x+6<br> C)y=6x+6<br> D)y=-6x-6
IrinaK [193]

The answer is C because 6x and 6 are both in the line

4 0
3 years ago
What is the lateral surface area of this triangular prism in square centimeters?
Gre4nikov [31]

Answer:

lateral surface area of the triangular prism = 128 cm²

Step-by-step explanation:

The question is incomplete the picture below represents the complete question.

Lateral surface area of a triangular prism = PH

where

p = perimeter of the triangle

H = height of the prism

perimeter = 5 + 5 + 6 = 16 cm

height of the prism = 8 cm

Lateral surface area of a triangular prism = Perimeter of the triangle × height of the prism

lateral surface area of the triangular prism = 16 × 8

lateral surface area of the triangular prism = 128 cm²

8 0
3 years ago
As you can see I keep getting questions wrong.... Can you answer the last question?
aivan3 [116]

Answer:

  y = 0

Step-by-step explanation:

It is always a good idea to look at the question and make some observations about it. Here, you might observe ...

  • all of the bases are powers of 3: 243 = 3^5; 9 = 3^2
  • y is a factor of every exponent

The latter observation is important, because it means that when y=0, every exponential expression has a value of 1. Hence y = 0 is a solution.

__

To solve the equation, you can write it in terms of powers of 3.

  (3^5)^(-y) = (3^-5)^(3y)·(3^2)^(-2y)

  3^(-5y) = 3^(-15y)·3^(-4y)

  3^(-5y) = 3^(-19y)

  -5y = -19y . . . . . . . . equating exponents; equivalent to taking log base 3

  14y = 0 . . . . . . . . . . add 19y

  y = 0 . . . . . . . . . . . one solution

______

The rules of exponents we used are ...

  (a^b)(a^c) = a^(b+c)

  (a^b)^c = a^(bc)

  1/a^b = a^-b

4 0
3 years ago
Qual o valor de 2 3 -1 3 ?
ra1l [238]
El valor de 23-13 es 10
7 0
3 years ago
Jose needs 6.2 lb of organic blueberries to make smoothies. Organic blueberries are on sale for $2.85 per pound. Jose estimates
guajiro [1.7K]

Answer:

Jose incorrectly rounded $2.85 down to $2. The estimate should be $18.

Step-by-step explanation:

When we round 6.2 lb to the nearest pound we round down, because the digit after point is less than 5 (2<5), so

6.2\ lb\approx 6\ lb

When we round $2.85 to the nearest dollar we round up, because the digit after point is greater than 5 (8>5), so

\$2.85\approx \$3

Now, 6.2 lb of blueberries will approximately cost

\$3\cdot 6=\$18

Hence, Jose incorrectly rounded $2.85 down to $2. The estimate should be $18.

5 0
3 years ago
Read 2 more answers
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