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3 years ago

Use the diagram to determine which expressions you

Mathematics

2 answers:

irina1246 [14]3 years ago

8 0

60/100=0.6

So the answer is 0.60x90

grigory [225]3 years ago

4 0

Answer:

You can use 0.60 × 90, 3 × 18 works as well.

Step-by-step explanation:

Hmmm....let's see.

You can use 0.60 × 90, 3 × 18 works as well. The answer is 54.

We know this because when finding a percentage of a number you multiply that decimal by the number. 2nd option as well as last option could work. Hope this helps, please mark brainliest!

You might be interested in

As the carbon content in steel increases, its ductility tends to decrease. A researcher at a steel company measures carbon conte

mixer [17]

Answer:

d. -5.666 to -0.926

Step-by-step explanation:

Here a pivotal quantity is $T = \frac{\hat{\beta_{1}}-\beta_{1}}{se(\hat{\beta_{1}})}$ where $\beta_{1}$ is the true slope of the regression equation (unknown), $\hat{\beta_{1}}$ is its least square estimate and $se(\hat{\beta_{1}})=1.097$ is its estimated standard error. And T has t-distribution with n-2=15-2=13 degrees of freedom (n is the sample size). We have that $\hat{\beta_{1}} = -3.30$ , and because we want the 95% confidence interval, we should use the 2.5th quantile of the t distribution with 13 df, this value is -2.16 and the 95% confidence intervale is given by $\hat{\beta_{1}}\pm t_{0.025}se(\hat{\beta_{1}})$ , i.e., $-3.30\pm (2.16)(1.097)$ . Therefore, the 95% confidence interval explicitly is (-5.666, -0.926)

6 0

4 years ago

Whats the the first three sequence of n-4

Elan Coil [88]

Answer:

Therefore, the first three term of the sequence is:

$a_1\:=\:-3$

$a_2\:=\:-2$

$a_3\:=\:-1$

Hence, the sequence is:

$-3, -2, -1, ...$

Step-by-step explanation:

Given the nth term

$a_{n} = n-4$

The first three terms can be obtained by putting $n=1, n=2$ and $n=3$ respectively in the given nth term

Putting $n=1$ to get the first term

$a_1\:=\:1-4$

$a_1\:=\:-3$

Putting $n=2$ to get the second term

$a_2\:=\:2-4\:\:$

$a_2\:=\:-2$

Putting $n=3$ to get the three term

$a_3\:=\:3-4\:$

$a_3\:=\:-1$

Therefore, the first three term of the sequence is:

$a_1\:=\:-3$

$a_2\:=\:-2$

$a_3\:=\:-1$

Hence, the sequence is:

$-3, -2, -1, ...$

3 0

3 years ago

Read 2 more answers

Determine if the sequence is arithmetic or geometric. Then find the next term in the sequence. Select all that apply. 1, -4, 16,

Tcecarenko [31]

Hello,

$u_{1} =1\\\\
 u_{2} =-4=1*(-4)= u_{1} *(-4)\\\\
 u_{3} =16=(-4)*(-4)= u_{2} *(-4)\\\\
 u_{4} =-64=16*(-4)= u_{3} *(-4)\\\\
 u_{5} =(-64)*(-4)= 256=u_{4} *(-4)\\\\

$
The sequence is geometric of ratio -4.

Answer 2 and 4 are good. others false

7 0

3 years ago

9 friends are lining up. Joe, Susan, John, and Meredith must be beside each other. How many ways can they line up?

ZanzabumX [31]

<h3>Answer: 17,280</h3>

This is one single number slightly over 17 thousand.

You may need to erase the comma when typing the answer in.

=========================================================

Explanation:

Let's say that another person steps in for Joe, Susan, John, and Meredith. I'll refer to this person as the teacher (perhaps these 9 friends are students on a field trip).

The 9 friends drops to 9-4 = 5 people when those four named people leave the group temporarily. Then it bumps up to 5+1 = 6 people when the teacher steps in. Wherever the teacher is located, the four friends that left will replace the teacher. This guarantees that those four friends stick together.

There are 6! = 6*5*4*3*2*1 = 720 ways to arrange those 6 people. The exclamation mark is a factorial symbol.

Within any of those 720 permutations, we have 4! = 4*3*2*1 = 24 ways to arrange those group of named people when they come back to replace the teacher.

So overall the answer is 4!*6! = 24*720 = 17,280

You may need to erase the comma when typing the answer in.

-------------

Side note: There are 9! = 362,880 ways to arrange all nine friends regardless if those four mentioned people stick together or not. We see that they stick together roughly (17,280)/(362,880) = 0.0476 = 4.76% of the time.

6 0

3 years ago

What is the domain of y=log_5x

Marrrta [24]

<h2>Answer:</h2>

$(0. \infty)$

<h2>Step-by-step explanation:</h2>

Since this is a logarithmic function, the domain is $(0. \infty)$ . But what is the domain of a function? The domain of a function is the set of inputs. This is so, because for any logarithmic function $y=log_{a}(x)$ , x must be greater than 0. So this function is continuous and has an x-intercept at $(1,0)$ , and y increases as x increases. Finally, its graph is shown below.

3 0

4 years ago