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sergey [27]
4 years ago
5

A baby blue whale weighed 3 ton at birth. Ten days later, it weighed 4 tons. Assuming the same rate of growth, which equation sh

ows the weight w when the whale is d days old?
A. w=10d+3
B. w=10d+4
C. w=0.1d+3
D. w=d+10
Mathematics
1 answer:
Andreyy894 years ago
7 0
The answer is d I believe
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When asked to rewrite the expression (x3 + 2x? – x)-(-x3 + 2x2 + 6), Denise made a mistake. She did not get the correct answer,
DanielleElmas [232]

Answer:

She rewrote the problem without parentheses: x3+ 2x2 - x + x3 – 2x2 +6

Step-by-step explanation:

It looks like she didn't fully distribute the -

(x3 + 2x2 - x)-(-x3 + 2x2 + 6) :Original

x3+ 2x2 - x + x3 – 2x2 +6 :Changed

~

(x3 + 2x2 - x)-(-x3 + 2x2 + 6)

x3 + 2x2 - x + x3 - 2x2 - 6

x3 + x3 + 2x2 - 2x2 -x - 6

2x3-x-6

I hope this helps ^-^

3 0
3 years ago
The base of an isosceles triangle is one and a half times the length of the other two sides.A smaller triangle has a perimeter t
Anna11 [10]

Answer:

Perimeter of the smaller triangle = 1.75x

Step-by-step explanation:

Let the two equal sides of an isosceles triangle = x

Therefore, length of the base = (1\frac{1}{2})x

Perimeter of this isosceles triangle = x + x + (1\frac{1}{2})x

                                                          = 2x + (1+\frac{1}{2})x

                                                          = 2x + x + \frac{x}{2}

                                                          = \frac{5x}{2}

Since, smaller triangle has a perimeter that is half the perimeter of the larger triangle,

Length of each corresponding side of smaller triangle will be half of the larger triangle.

Length of sides of the smaller triangle = \frac{x}{2},\frac{x}{2},(1\frac{1}{2})\frac{x}{2}

Perimeter of the smaller triangle = \frac{x}{2}+\frac{x}{2}+(1\frac{1}{2})\frac{x}{2}

                                                      = x + \frac{x}{2}+\frac{x}{4}

                                                      = \frac{3}{2}x+\frac{x}{4}

                                                      = \frac{6}{4}x+\frac{x}{4}

                                                      = \frac{7}{4}x

                                                      = 1.75x

Therefore, expression that represents the perimeter of the smaller triangle is (1.75x)        

4 0
3 years ago
What is the solution of log2x + 6 8 = 3? x = −2 x = 2 x = −3 x = 3
agasfer [191]

Answer:

x = −3

Step-by-step explanation:

The equation is

log(2x + 6) + 8 = 3

We combine first subtract 8 on both sides

log(2x + 6) + 8-8 = 3 -8

log(2x + 6) = -5

The log is to base 10

Thus;

10 ⁻⁵ = 2x + 6

0.00001 = 2x + 6

2x = 0.00001 -6

2x = -5.99999

Dividing both sides by 2

x = - 2.999995

<u>    ≈ - 3</u>

8 0
3 years ago
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Answer:

bxcdxdbdbdbdxxbdxdbbxd

Step-by-step explanation:

8 0
3 years ago
A resort hotel rents bicycles for 20 plus and hourly rate of $6. A nearby hotel rents bicycles for 15$ plus an hourly rate of $8
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What are you trying to slove?
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