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2 years ago

(x - 5) + (x - 1) Simplify

Mathematics

2 answers:

Gnesinka [82]2 years ago

7 0

Answer: 2x-6

Step-by-step explanation: 1 Remove parentheses.

x-5+x-1x−5+x−1

2 Collect like terms.

(x+x)+(-5-1)(x+x)+(−5−1)

3 Simplify.

2x-62x−6

nika2105 [10]2 years ago

5 0

2x+6 because you cross multiply and add both x’s to make a 2. and two negatives make a positive and you add the 5 and the 1 to get 2x+6

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Factorise 3x + 5x – 12

Daniel [21]

Answer:(x+3)(3x+4)

Step-by-step explanation:

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2 years ago

Read 2 more answers

The graph of a quadratic function has roots at -3 and -7 and a vertex at (-5, 4). What is the equation of the function in vertex

melomori [17]

Answer:

y = -(x + 5)² + 4

Step-by-step explanation:

The roots are -3 and -7, so:

y = a (x + 3) (x + 7)

Distribute and complete the square:

y = a (x² + 10x + 21)

y = a (x² + 10x + 25 − 4)

y = a (x² + 10x + 25) − 4a

y = a (x + 5)² − 4a

The vertex is (-5, 4), so a = -1.

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2 years ago

Please help with 3. 4. 5.

Eddi Din [679]

3.
$\text{The Triangle Sum Theorem:}\\m\angle A+m\angle B+m\angle C=180^o$
$x+2x-1+3x+1=180\\6x=180\ \ \ |:6\\x=30$
$x^o=30^o\\(3x+1)^o=(3\cdot30+1)^o=91^o\\(2x-1)^o=(2\cdot30-1)^o=59^o$
4.
$r-6+3r-3+5r=180\\9r-9=180\ \ \ |+9\\9r=189\ \ \ |:9\\r=21$
$(r-6)^o=(21-6)^o=15^o\\(3r-3)^o=(3\cdot21-3)^o=60^o\\(5r)^o=(5\cdot21)^o=105^o$
5.
$\text{The Exterior Angle Theorem:}\\m\angle CAB+m\angle ABC=m\angle DCB$
$2g+9g=110\\11g=110\ \ \ |:11\\g=10$
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4 0

2 years ago

What is the equation in slope-intercept form of the line that passes through the point (3,0) and is

Pie

Answer:

The answer is B y = 1.5x – 4.5

Step-by-step explanation:

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2 years ago

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Sonbull [250]

Answer:

sin(R)=6/sqrt(97)

Step-by-step explanation:

Sine is opposite/hypotenuse

If you want to know what the angle is, Angle R= about 37.5

Hope this helps

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2 years ago