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2 years ago

Getting ready for the FSA math test is hard

Mathematics

2 answers:

sergejj [24]2 years ago

6 0

B because 2x-6+4x+3 is simplified to 6x+3. Comment if you need clarification. Hope I helped! :)

sineoko [7]2 years ago

4 0

B is the right answer

You might be interested in

It is one more than the sum of the first three natural numbers, followed by the 24th letter of the alphabet. Please help

Luda [366]

Answer:

The set of natural numbers is the set of all positive integers, then this set is:

{1, 2, 3, ...}

and the 24th letter of the alphabet is x

Now we want to write the expression given in the sentence "It is one more than the sum of the first three natural numbers, followed by the 24th letter of the alphabet"

We can "break" this in parts, so it is easier to understand.

Then:

"...the sum of the first 3 natural numbers..."

is:

1 + 2 + 3

Then:

"...the sum of the first 3 natural numbers, followed by the 24th letter of the alphabet"

This can be written as:

(1 + 2 + 3) + x

Now we can analyze the complete sentence:

"It is one more than the sum of the first three natural numbers, followed by the 24th letter of the alphabet"

This is equal to the expression we found above plus one, then we can write this as:

[(1 + 2 + 3) + x] + 1

[6 + x] + 1

6 + x + 1

7 + x

4 0

3 years ago

Mike wrote down a number on a piece of paper and hid it from his friends. He rounded his number to different places and his frie

Naddik [55]

Answer: 145,998, 7,000, and 25,991

My guess :))

Step-by-step explanation:

145,998 7,002 4,506 26,991 12,497

First, Mike rounded his number to the nearest ten

146,000 7,000 4,510 27,000 12,500

Then, he rounded his number to the nearest hundred.

146,000 7,000 4,500 27,000 12,500

Last, he rounded his number to the nearest thousand.

146,000 7,000 5,000 27,000 12,000

3 0

2 years ago

Given that Cosecant (t) = negative StartFraction 13 Over 5 EndFraction for Pi less-than t less-than StartFraction 3 pi Over 2 En

Sergio [31]

Answer:

$\bold{cot(t) =\dfrac{12}{5}}$

Step-by-step explanation:

Given that:

$Cosec (t) = -\frac{13}5$

for $\pi < t < \frac{3 \pi}2$

That means, angle $t$ is in the 3rd quadrant.

To find:

Value of cot(t)

Solution:

First of all, let us recall what trigonometric ratios are positive and what trigonometric ratios are negative in 3rd quadrant.

In 3rd quadrant, tangent and cotangent are positive.

All other trigonometric ratios are negative.

Let us have a look at the following identity:

$cosec^2\theta -cot^2\theta =1$

here, $\theta =t$

So, $cosec^2t-cot^2t=1$

$\Rightarrow (-\dfrac{13}{5})^2-cot^2t=1\\\Rightarrow (\dfrac{169}{25})-cot^2t=1\\\Rightarrow \dfrac{169}{25}-1=cot^2t\\\Rightarrow \dfrac{169-25}{25}=cot^2t\\\Rightarrow \dfrac{144}{25}=cot^2t\\\Rightarrow cot(t)=\pm\sqrt{\dfrac{144}{25}}\\\Rightarrow cot(t)=\pm\dfrac{12}{5}$

But, angle $t$ is in 3rd quadrant, so value of

$\bold{cot(t) =\dfrac{12}{5}}$

4 0

2 years ago

. 7/8 = /48 A. 6 B. 1 C. 13 D. 42

hodyreva [135]

7/8=x/48

x=(7/8)48
x=(7)(48/8)
x=(7)(6)
x=42
D.42

4 0

3 years ago

The diameter of a circle is 34 millimeters. What is the circle's area? Use 3.14 for .

icang [17]

Answer:

907.46 mm2

Step-by-step explanation:

Area of circle = (¶d^2)/4

d = 34 mm

Therefore

Area A = (3.14 x 34^2)/4

= 907.46 mm2

6 0

3 years ago