All categories

3 years ago

How do you solve -2(4-x)-5=11 ?

Mathematics

1 answer:

zlopas [31]3 years ago

3 0

Answer:

x =12

Step-by-step explanation:

we have:

-2(4-x)-5=11

apply distributive property:

-2*4 +2*x -5=11

we have:

-8 +2x -5 =11

2x -13 =11

2x = 11+13

2x= 24

x = 24/2

finally we have the x value:

x =12

You might be interested in

4) Find the LCM of 20 and 9

allsm [11]

180 is the least common multiple.

8 0

3 years ago

Read 2 more answers

The two angles illustrated in the picture are what kinds of angles?

Tanzania [10]

Answer:

Vertical Angles

Step-by-step explanation:

each of the pairs of opposite angles made by two intersecting lines.

4 0

3 years ago

The following observations on degree of polymerization for paper specimens are used to estimate the true average degree polymeri

marshall27 [118]

Answer:

The answer is in the explanation

Step-by-step explanation:

Mean value = $\bar x$ = 438

(a) The data appeared to be centered towards 438.

There are little or no skew.

There is no outliers.

(b) yes

95% confidence interval = $+- t_{df} * s\sqrt{n}$

$438 +- 2.12 * 14.8955 /\sqrt{17}$ =

= (430.3415, 445.6585)

(d) Test statistic

t = $(438 - 450)/{14.8955\sqrt17} }$

t = -3.3216

p -value is correctly given in option b.

No, 450 is not a plausible valaue.

5 0

3 years ago

Please answer I will make brainlest:)

Georgia [21]

Answer:

(3,-4)

Step-by-step explanation:

7 0

2 years ago

In the diagram below, triangle abc ~ triangle dec . What is the value of x? A. 28 b. 24 c. 22 d. 26

Lesechka [4]

Answer:

Option A.

Step-by-step explanation:

From the figure attached,

Given : ΔABC ~ ΔDEC

By the property of similarity,

"Corresponding sides of the similar triangles are proportional"

$\frac{\text{AB}}{ED}=\frac{BC}{EC}=\frac{AC}{DC}$

Since, $\frac{\text{AB}}{ED}=\frac{AC}{DC}$

$\frac{42}{6}=\frac{x}{(32-x)}$

6x = 42(32 - x)

6x = 1344 - 42x

6x + 42x = 1344

48x = 1344

x = $\frac{1344}{48}$

x = 28 units

Therefore, Option (A). x = 28 units will be the answer.

4 0

3 years ago