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2 years ago

What is the answer to 2(8 + 7) - 3(5)

Mathematics

1 answer:

Olenka [21]2 years ago

3 0

Answer:15

Step-by-step explanation:

2(8+7) -3(5)

2(15)-15

30-15

=15

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1/2(x + 1)²- 3

Ierofanga [76]

Answer:

a = 1/2
h = -1
k = -3

Step-by-step explanation:

We assume you want to compare your expression to the form ...

a(x -h)² +k

1/2(x +1)² +k

The multiplier outside parentheses is ...

a = 1/2

The horizontal offset inside parentheses is ...

-h = 1

h = -1

The vertical offset outside parentheses is ...

k = -3

4 0

2 years ago

At the start of 2014 Mike's car was worth £12000.

chubhunter [2.5K]

We have to calculate the value of the car after 3 years at the start of 2017.
= 1200(1-0.30)^{3}
= 12000 × 0.343
= $4,116

5 0

2 years ago

Read 2 more answers

What are the factors of the expression below? -2x+5x-3

Ipatiy [6.2K]

Answer:

-2x-15

Step-by-step explanation:

4 0

2 years ago

How many days are in 37 000 minutes?

vivado [14]

Answer:

the answer is 24.7 days

6 0

3 years ago

Max built a rectangular Prism and a rectangular Pyramid using beach sand. The prism and the pyramid have the same base area and

vova2212 [387]

Answer:

Three times

Step-by-step explanation:

Given

Figures: Rectangular Prism and Rectangular Pyramid

Let the dimension of the prism be:

$l = length$

$w = width$

$h = height$

Amount of sand used is the volume (V1) and it is calculated using;

$V_1 = l * w * h$

$V_1 = lw h$

Since the pyramid has the same base area and height as the prism, the its dimension would be:

$l = length$

$w = width$

$h = height$

Amount of sand used is the volume (V2) and it is calculated using;

$V_2 = \frac{1}{3}*(lwh)$

So, we have:

$V_1 = lw h$

$V_2 = \frac{1}{3}*(lwh)$

Substitute lwh for V1 in the second equation

$V_2 = \frac{1}{3}V_1$

Multiply both sides by 3

$3 * V_2 = \frac{1}{3}V_1 * 3$

$3 * V_2 = V_1$

Reorder

$V_1 = 3 * V_2$

$V_1 = 3 V_2$

<em>Hence, the amount of sand used in building the prism is three times the amount of sand used in building the pyramid</em>

3 0

2 years ago