All categories

2 years ago

HELPPPPPPP MEEEEE BUT PUT THE CORRECT ANSWER

Mathematics

1 answer:

Elenna [48]2 years ago

3 0

Answer:

$\sf 3\left[-x+\left(2x+1\right)\right]=x-1$

$\sf 3\left(-x+2x+1\right)=x-1$

Combine like terms:

$\sf -x+2x=x$

$\sf 3\left(x+1\right)=x-1$

Expand:

$\sf 3x+3=x-1$

Subtract 3 from both sides:

$\sf 3x+3-3=x-1-3$

$\sf 3x=x-4$

Subtract x from both sides:

$\sf 3x-x=x-4-x$

$\sf 2x=-4$

Divide both sides by 2:

$\sf \cfrac{2x}{2}=\cfrac{-4}{2}$

$\boxed{\boxed{ \sf x=-2}}$

You might be interested in

This graph shows the relationship between the number of cups of sugar and the number of cups of flour needed in a recipe. What p

stiv31 [10]

8 cups of flour and 2 cups of sugar
the answer is (8,2)

7 0

2 years ago

Read 2 more answers

The U.S. Bureau of Labor Statistics reports that 11.3% of U.S. workers belong to unions. Suppose a sample of 400 U.S. workers is

lorasvet [3.4K]

Answer:

1 is the answer

Step-by-step explanation:

Given that the U.S. Bureau of Labor Statistics reports that 11.3% of U.S. workers belong to unions.

$H_0: p=0.113\\H_a: p >0.113$

(Right tailed test for testing of a sample proportion with population proportion)

Suppose a sample of 400 U.S. workers is collected in 2014 to determine whether union efforts to organize have increased union membership at 0.025 level of significance.

Test statistic Z = 1.31

p value for this right tailed test would be 0.095

This p value is greater than 0.025

Hence at 2.5% significance level the conclusion is correct

1 is the answer.

6 0

3 years ago

Which graph represents the solution to the inequality x+3 greater than or equal to 2?

Shalnov [3]

Answer:

$x+3\ge 2=\begin{bmatrix}\mathrm{Solution:}\:&\:x\ge \:\:-1\:\\ \:\:\mathrm{Interval\:Notation:}&\:[-1,\:\infty \:\:)\end{bmatrix}$

Please check the attached graph.

Step-by-step explanation:

We know that 'greater than or equal' is represented as '≥'.

Thus, inequality ''x+3 greater than or equal to 2'' is represented as:

$x+3\ge 2$

<u><em>Solving inequality</em></u>

$x+3\ge 2$

subtract 3 from both sides

$x+3-3\ge \:2-3$

simplify

$x\ge \:-1$

Thus,

$x+3\ge 2=\begin{bmatrix}\mathrm{Solution:}\:&\:x\ge \:\:-1\:\\ \:\:\mathrm{Interval\:Notation:}&\:[-1,\:\infty \:\:)\end{bmatrix}$

Please check the attached graph.

3 0

3 years ago

The figure below shows a parallelogram ABCD. Side AB is parallel to side DC and side AD is parallel to side BC: A quadrilateral

valina [46]

Answer: ASA postulate

Step-by-step explanation:

According to the ASA (Angle-Side-Angle) postulate, if two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the triangles are congruent to each other. '

Here Given: ABCD is a parallelogram

That is, AB ║ CD and AD ║ BC

We have to prove that:The parallelogram ABCD has two pairs of opposite sides equal, that is, AB ≅ CD and AD ≅ BC.

Here BD is the diagonal of the parallelogram ABCD ( shown in the below figure)

Thus, In Δ ABD and Δ CBD

∠ABD ≅ ∠CDB ( alternative interior angles made on parallel lines by the same transversal BD)

BD ≅ BD ( Reflexive )

And, ∠ADB ≅ ∠CBD ( alternative interior angles made on parallel lines by the same transversal BD)

Here, Two angles and the included side of triangle ADB are congruent to two angles and included side of traingle BCD.

Therefore, By ASA postulate of congruence,

Δ ABD ≅ Δ CBD

Thus, By CPCTC, AB ≅ CD and AD ≅ BC.

8 0

2 years ago

Read 2 more answers

A Zoo keeps a tiger-to-lion ratio of 7:3. If the Zoo has room for 70 animals,

Y_Kistochka [10]

Answer:

Step-by-step explanation:

7x7=49

3x7=21

49+21=70

6 0

2 years ago

Read 2 more answers