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3 years ago

9

Plz helppppppppppp:)))))

2 answers:

Naily [24]3 years ago

8 0

Answer:

option a is right.......

vfiekz [6]3 years ago

4 0

The first one:))) Hope you do well

You might be interested in

a big cruise ship dropped anchor off the Caribbean island of antigua. the heavy anchor dropped into the water at a rate of 2.5 m

AysviL [449]

Falling at the rate of 2.5 m/s for 45 seconds, the anchor fell

(2.5 m/s) x (45 s) = 112.5 meters .

If it wound up only 40 meters underwater, then it must have fallen

(112.5 m - 40 m) = 72.5 meters

from its storage position on the big cruise ship,
before it ever reached the water.

Since it was falling at the rate of 2.5 m/s, it took

(72.5 m) / (2.5 m/s) = 29 seconds

to get down to the water surface after it started dropping.

6 0

3 years ago

Algebra what a subject please write down all the rules when using algebra ill provide some below that I know

Andrews [41]

Step-by-step explanation:

Algebra is a topic that covers linear equations, system of equations, sequences, exponential functions, polynomials, quadratic, exponents, radicals, functions, and more. I'm going to give use algebraic formulas and not all the topics.

Like Terms Rule: If two terms that share the same variable are separated by a binary operation, we can combine them.

For example, look at

$6 + 7x + 9x$

We can combine 7x and 9x.

$7x + ( + 9x) = 16x$

Add the coeffceint and keep the variable.

16x+6

Solving Algebraic Equations:

Alot questions in Algebra asks you to isolate a variable. For example,

$\frac{x}{2} + 6 = 9$

First step, is to get the x variable by itself. To do this subtract 6 by both sides. Why? Because Subtraction is a inverse operation off addition. Remeber the Golden Rule of Algebra,

<em>WHAT</em><em> </em><em>WE</em><em> </em><em>DO</em><em> </em><em>TO</em><em> </em><em>ONE</em><em> </em><em>SIDE</em><em>. </em><em>WE</em><em> </em><em>DO</em><em> </em><em>TO</em><em> </em><em>THE</em><em> </em><em>OTHER</em><em>.</em>

<em> $\frac{x}{2 } = 3$ </em>

<em>Now</em><em>,</em><em> </em>we multiply both sides by 2 because multiplying is the inverse operation of division and vice versa.

$x = 6$

If we plug this in, it is indeed true.

$\frac{6}{2} + 6 =$

$3 + 6 = 9$

Some other rules are

If we multiply a term by a one term, we only affect the term that is being multiplied, for example

$2x \times 3$

2 and 3 are both real numbers so we just multiply 2 and 3. and put x behind the answer.

$2 \times 3 = 6(x)$

$2x \times 3 = 6x$

When we multiply 2 variables, we put the variable near each other. For example,

$x \times y = xy$

When we add term, we add the coeffcient parts

$y + y = 1y + 1y = 2y$

Know that

$y = 1y$

When we multiply same term variables, we get

$x \times x = {x}^{2}$

There is more formulas for Algebra. But these are the basicis.

8 0

3 years ago

What is 28% of 58?<br><br> Hhhhhhh

Olenka [21]

Answer:

16.24

Step-by-step explanation:

of means multiply

28% * 58

Change to decimal form

.28 * 58

16.24

7 0

4 years ago

Read 2 more answers

How do you solve 33 + 27.2 – (6.8 + 24) – 3.1 i need it for an paper im doing and need to show my work

Neporo4naja [7]

Answer:

26.3

Step-by-step explanation:

33+27.2–(6.8+24)–3.1

Add 33 and 27.2 to get 60.2.

60.2−(6.8+24)−3.1

Add 6.8 and 24 to get 30.8.

60.2−30.8−3.1

Subtract 30.8 from 60.2 to get 29.4.

29.4−3.1

Subtract 3.1 from 29.4 to get 26.3.

26.3

I hope it helps.

3 0

3 years ago

Read 2 more answers

The area of a triangle is 1,440 cm2. The base of the triangle is 5 times the height. What is the height of the triangle? 12 cm 2

GarryVolchara [31]

The area of a triangle with base 'b' and height 'h' is given by the formula:

$A = \frac{1}{2} bh$

It is given that the area of a triangle is $1440 cm^2$ .

It is given that the base of the triangle is 5 times the height.

So, $b=5 \times h = 5h$

We have to determine the height of the triangle.

Since, $A = \frac{1}{2}bh$

$1440 = \frac{1}{2}(5h)h$

$1440 = \frac{1}{2}(5h^2)$

$1440 \times 2 = 5h^2$

$2880= 5h^2$

$\frac{2880}{5}= h^2$

$h^2=576$

So, $h=\sqrt{576}$

So, h = 24 cm

Therefore, the height of the triangle is 24 cm.

Option 2 is the correct answer.

6 0

3 years ago

Read 2 more answers