All categories

3 years ago

Will mark brainliest

Mathematics

2 answers:

Lapatulllka [165]3 years ago

5 0

Answer:

12. 5x

13. 5/x-z

Step-by-step explanation:

12. product means multiplication so multiply 5 by x= 5x

13. quotient means division and difference means subtraction. so you divide 5 by x-z= 5/x-z

Serggg [28]3 years ago

4 0

Answers:

$\huge \boxed{{12. \ 5x}}$

$\huge \boxed{{13. \ \frac{5}{x-z} }}$

$\rule[225]{225}{2}$

Step-by-step explanation:

The product is the result after multiplying values together.

The product of 5 and x is:

$5 * x$

$5x$

The quotient is the result after dividing values together.

The difference is the result after subtracting values together.

The quotient of 5 and the difference of x and z is:

$\displaystyle \frac{5}{x-z}$

$\rule[225]{225}{2}$

You might be interested in

Hi I'm having some trouble

hoa [83]

Answer:

4-4

Step-by-step explanation:

Substitute the actual values of the points into the distance formula.

6 0

1 year ago

Calibrating a scale:

lana66690 [7]

Answer:

We conclude that the calibration point is set too high.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 1000 grams

Sample mean, $\bar{x}$ = 1001.1 grams

Sample size, n = 50

Alpha, α = 0.05

Population standard deviation, σ = 2.8 grams

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 1000\text{ grams}\\H_A: \mu > 1000\text{ grams}$

We use One-tailed(right) z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{ 1001.1 - 1000}{\frac{2.8}{\sqrt{50}} } = 2.778$

Now, $z_{critical} \text{ at 0.01 level of significance } = 2.326$

Since,

$z_{stat} > z_{critical}$

We reject the null hypothesis and accept the alternate hypothesis. We accept the alternate hypothesis. We conclude that the calibration point is set too high.

6 0

3 years ago

Write 9x+3x2-4x5+x3+2x4 in standard form.

KonstantinChe [14]

-4x^5 + 2x^4 + x^3 + 3x^2 + 9x
Hope this helps.

6 0

3 years ago

Read 2 more answers

The image shows a ray of light bending at the boundary of a glass block. According to a law of optics, = n, where n is a constan

UkoKoshka [18]

The formula for the light bend would be n1*sin i= n2 * sin r

If you use "sin (90-x)= cos x" principle, you can change the sin in the equation into
n1*sin i= n2 * sin r
n1 * cos a= n2 * cos b
n2/n1= cos a/ cos b

Assuming the n constant is the ratio of the glass compared to water then the answer would be: cos a/ cos b

3 0

3 years ago

I need some help with this one

Mrac [35]

Answer:

300+90+9

-45=0+40+5

Step-by-step explanation:

399-45=354

8 0

2 years ago

Read 2 more answers