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1 year ago

Trying to find the x

Mathematics

1 answer:

Lapatulllka [165]1 year ago

7 0

Step-by-step explanation:

why .....................

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For each expression, combine like terms and write an equivalent expression with fever terms.

ASHA 777 [7]

Answer:

1. 7x

2. 8x - 1

3. 6x + 12

4. 3x + 4

5. 13x - 7

Step-by-Step Explanation:

Hope this helps!

7 0

2 years ago

Read 2 more answers

How many two-digit numbers can be made from the following cards?

liraira [26]

Answer:

25 numbers

Step-by-step explanation:

we have five different bases to choose from

(1,2,3,4,5)

$5 {}^{2} = 25$

8 0

2 years ago

We use the t distribution for the statistical inference of the population mean when the underlying population standard deviation

Digiron [165]

Answer:

Step-by-step explanation:

Since population std deviation is not known, we use t critical value for testing of hypothesis.

a) 90% conf level when n =28

df = 27, t critical = 1.706

b) 95% 28

df =27 and t critical = 2.052

c) 90% and 15

df =14 and t critical = 1.761

d) 95% and n =15

df =14: t critical = 2.145

6 0

2 years ago

100/60 is exactly 1.66666666667. When I do long division my answer comes up as 1.6 with the decimal repeating, am I doing anythi

goblinko [34]

Answer:

I don't think you are doing anything wrong. Just ignore it and write the repeating decimal. If you're asked to do it, round it up instead.

5 0

3 years ago

Read 2 more answers

Please help me with this

Cerrena [4.2K]

Answer:

Yes;Each side of triangle PQR is the same length as the corresponding side of triangle STU

Step-by-step explanation:

You can observe the sides of both triangles to see if this property holds

Lets check the length of AB

A(0,3) and B(0,-1)

$AB=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\\\\\\\AB=\sqrt{(0-0)^2+(-1-3)^2} \\\\\\\\AB=\sqrt{0^2+-4^2} \\\\\\AB=\sqrt{16} =4units$

Now check the length of the corresponding side DE

D(1,2) and E(1,-2)

$DE=\sqrt{(1-1)^2+(-2-2)^2} \\\\\\DE=\sqrt{0^2+-4^2} \\\\\\DE=\sqrt{16} =4units$

The side AB has the same length as side DE.This is also true for the remaining corresponding sides.

6 0

3 years ago