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3 years ago

What is the value of 3 in 803,040

Mathematics

2 answers:

mel-nik [20]3 years ago

4 0

The value of 3 is a thousand.

vesna_86 [32]3 years ago

3 0

It will be three-thousand or it could be written in 3000

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Which of the following numbers has an odd number of factors 13,15,25,26?

kvv77 [185]

Answer:

25. Its cubed.

Step-by-step explanation:

7 0

3 years ago

HELP!!! With working out... what’s the values of a b and c (2x+1)(ax+b)=(6x^2-5x+c)

Lady bird [3.3K]

Answer:

Step-by-step explanation:

(2x + 1)(ax + b) = 6x² - 5x + c

Expand the left side and put that half into standard form:

2ax² + 2bx + ax + b = 6x² - 5x + c

2ax² + (2b + a)x + b = 6x² - 5x + c

So now look at the x terms. We have "2a" x² on left and 6 x² on right, so:

2a = 6

a = 3

Then look at the x terms, those coefficients will then be equal:

2b + a = -5

2b + 3 = -5

2b = -8

b = -4

and finally, then non-x terms are equal:

b = c

-4 = c

so:

a = 3, b = -4, c = -4

4 0

3 years ago

Witch is greater 2/6 or 2/3

Zigmanuir [339]

2/3 because if you reduce 2/6 it equals 1/3

6 0

3 years ago

Read 2 more answers

Which is a better estimate for the volume of a cereal box? 1 cup 1 gallon

Dmitrij [34]

1 gallon. You’re estimating, so which one is about how much a box of cereal will hold? Well 1 cup is way to small, there are many cups in a box. A gallon is a better estimate.

8 0

2 years ago

Calculate the length of AB using Sine rule

vovikov84 [41]

Answer:

Approximately $22.2\; \rm m$ .

Step-by-step explanation:

By sine rule, the length of each side of a triangle is proportional to the sine value of the angle opposite to that side. For example, in this triangle $\triangle ABC$ , angle $\angle A$ is opposite to side $BC$ , while $\angle C$ is opposite to side $AB$ . By sine rule, $\displaystyle \frac{BC}{\sin{\angle A}} = \frac{AB}{\sin \angle C}$ .

It is already given that $BC = 22.4\; \rm m$ and $\angle A = 58^\circ$ . The catch is that the value of $\angle C$ needs to be calculated from $\angle A$ and $\angle B$ .

The sum of the three internal angles of a triangle is $180^\circ$ . In $\triangle ABC$ , that means $\angle A + \angle B + \angle C = 180^\circ$ . Hence,

$\begin{aligned}\angle C &= 180^\circ - \angle A - \angle B \\ &= 180^\circ - 58^\circ - 65^\circ \\ &= 57^\circ\end{aligned}$ .

Apply the sine rule:

$\begin{aligned} & \frac{BC}{\sin{\angle A}} = \frac{AB}{\sin \angle C} \\ \implies & AB = \frac{BC}{\sin{\angle A}} \cdot \sin \angle C \end{aligned}$ .

$\begin{aligned}AB &= \frac{BC}{\sin{\angle A}} \cdot \sin \angle C \\ &= \frac{22.4\; \rm m}{\sin 58^\circ} \times \sin 57^\circ \\ &\approx 22.2\; \rm m\end{aligned}$ .

5 0

3 years ago