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3 years ago

Looking at DEF, which statement below is true? I think the answer is B

Mathematics

2 answers:

kipiarov [429]3 years ago

7 0

I think the answer is A

LenaWriter [7]3 years ago

6 0

The answer is definitely not B. It’s most likely C.

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Please help and give a full explanation

romanna [79]

Answer:

14 - 9x + 12 + x

This is an expression (not an equation), therefore it can't be solved.

Factor the expression

Collect like terms:

⇒ 14 + 12 - 9x + x

Combine like terms:

⇒ -8x + 26

Find the highest common factor of 26 and 8

Factors of 26: 1, 2, 13, 26
Factors of 8: 1, 2, 4, 8

Therefore, the highest common factor is 2

Factor out -2 from -8x + 26:

⇒ -2(4x + 13)

Alternatively, factor out 2 from 26 - 8x:

⇒ 2(13 - 4x)

7 0

2 years ago

Read 2 more answers

Flying against the wind, a jet travels 1710 miles in 3 hours. Flying with the wind, the same jet travels 3720 miles in 4 hours.

Rufina [12.5K]

Answer:

Rate of jet in still air = 750 mph

Rate of wind = 180 mph

Step-by-step explanation:

Let the rate of jet in still air = $u$ mph

Let the rate of air = $v$ mph

So, Rate of jet against the wind = $(u-v)$ mph

Rate of jet with the wind = $(u+v)$ mph

Formula for Speed/Rate is given as:

$Speed = Distance \times Time$

Distance traveled in 3 hours against the wind = 1710 miles

Distance traveled in 4 hours against the wind = 3720 miles

$u-v=\dfrac{1710}{3}\\\Rightarrow u-v=570..... (1)$

$u+v=\dfrac{3720}{4}\\\Rightarrow u+v=930......(2)$

Adding (1) and (2):

$2u=1500\\\Rightarrow u=750\ mph$

By equation (1):

$750 - v =570\\\Rightarrow v =180\ mph$

Rate of jet in still air = 750 mph

Rate of wind = 180 mph

5 0

3 years ago

Alaina wants to decide whether her current cell phone plan is better than the package that another company offers

Rus_ich [418]

Answer:

Step-by-step explanation:

look for another phone company then

4 0

3 years ago

7. Given the points R(-5, 3), 5(-5, 4), 7(-3, 4), and

Anettt [7]

Answer:

C: ST

Step-by-step explanation:

Perpendicular Lines

The four points R(-5, 3), S(-5, 4), T(-3, 4), and U(-3, 1) are shown in the image attached below.

The vertical line TU is also shown. The only possible line perpendicular to TU is ST because it's a horizontal line.

Horizontal lines have a slope of 0. Let's verify the slope between points S(-5,4) and T(-3,4):

$\displaystyle m=\frac{4-4}{-3+5}=\frac{0}{2}=0$

Once verified, the answer is C: ST

5 0

3 years ago

I need help with this question

andreev551 [17]

Quadrilateral, Parallelogram, and a Rhombus

6 0

3 years ago