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3 years ago

3. The positive root of 154 is located between which two consecutive integer values?

Mathematics

2 answers:

telo118 [61]3 years ago

6 0

Answer:

Step-by-step explanation:

12²=144

√144=12

13²=169

√169=13

√154 lies between 12 and 13.

lesantik [10]3 years ago

4 0

Answer:

between 12 and 13

Step-by-step explanation:

answer is 12.4

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SpyIntel [72]

Answer:

A) I

Step-by-step explanation:

C is in 4th vertex and if moved 4 units it wii be in 1st vertex.

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3 years ago

What is f–1(8)?? Please select the best answer

notka56 [123]

Answer:

$f^{-1}(8)=\frac{3}{2}$

Step-by-step explanation:

Given f(x)= $2x+5$

We have to find $f^{-1}(8)$

In order to find $f^{-1}(x)$ we have to make x as the subject of the formula

Let us assume f(x)=y

⇒ $2x+5=y$

Subtracting both sides by 5

$2x+5-5=y-5$

$2x=y-5$

Dividing both sides by 2

$\frac{2x}{2}=\frac{y-5}{2}$

⇒ $x=\frac{y-5}{2}$

Now substituting y with x

we have $f^{-1}(x)=\frac{x-5}{2}$

Now $f^{-1}(8)=\frac{8-5}{2}$

= $\frac{3}{2}$

So option (ii) is correct

5 0

3 years ago

Read 2 more answers

Trent's salary used to be $143,020. After changing the amount of time he works, he has begun earning $78,661. By what percent di

svlad2 [7]

Answer:

The salary decreased by 45%

Step-by-step explanation:

Given,

The previous salary of Trent is $143,020

The current salary of Trent is $78,661

The decrease in salary is ($143,020 - $78,661) = $64,359

When he used to get $143,020, the decrease in salary is = $64,359

When he used to get $1, the decrease in salary is = $64,359/$143,020

When he used to get $100, the decrease in salary is = $(64,359/143,020)*100

= 45%

Therefore, there is a decrease in salary by 45%.

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3 years ago

8 tens + 3 ones = ____ tens + 13 ones

tia_tia [17]

Answer:

7 tens

Step-by-step explanation:

the value of the first half of the statement is 83 and the value of the second one is 13 (without the tens) so that mean it has 70 left over to make it 7 tens.

4 0

3 years ago

Forty six times y is no more than 276

Step2247 [10]

Answer:

y ≤ 6

Step-by-step explanation:

Step 1: Convert words into an expression

Forty six times y is no more than 276

46 * y ≤ 276

Step 2: Solve for y

46 * y / 46 ≤ 276 / 46

y ≤ 6

Answer: y ≤ 6

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3 years ago

Read 2 more answers