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Rufina [12.5K]
3 years ago
7

Add the linear expressions

Mathematics
2 answers:
Ganezh [65]3 years ago
7 0

Answer:

-3x -4

Step-by-step explanation:

did the test

mr_godi [17]3 years ago
3 0

Answer:

2x² + 4x - 8 - 4x² + x - 1

I rearranged it so that like terms are placed next to each other:

2x² - 4x² + 4x + x - 8 - 1

- 2x² + 5x - 9

Step-by-step explanation:

hope this helps

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{[20/(8+2)]^6+6}/(4^2/2)
Naddika [18.5K]
So for this problem we need to do order of operations so the very first step that we need to do here is (8+2) because that is the smallest enclosed symbols (8+2)=10 next divide by 20 because that is the next step in the equation which 20/10=2, so now we have {[2]^6+6} and due to order of operations the next step here is to take 2 to the power of 6 which is 64 so now we have {64+6} which is 70 so now we have 70/(4^2/2) and due to order of operations we do the parentheses first and that would mean that we do 4^2 because exponents come after parantheses like so,
70/(16/2) now we do 16/2 because its still inside the paranthesess so 16/2=8 so now we have 70/8 and that equals are end answer of 8.75 Enjoy!=)
7 0
3 years ago
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If 60 is 75% of a value,what is that value
NISA [10]
80

<span>Using the rule of 3, 60x100% =6000(obviously) and 6000/75 = 80</span>
4 0
3 years ago
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If Triangle ABC= triangle DEF, which statement must be true?
arlik [135]

The statement must be true is AC = DF ⇒ A

Step-by-step explanation:

When two triangles are congruent, then

  • Their corresponding sides are equal in lengths
  • Their corresponding angles are equal in measures
  • Their perimeters and areas are equal

∵ ΔABC ≅ DEF

- Their corresponding sides and angles are equal

∴ AB = DE ⇒ AB is the corresponding side of DE

∴ BC = EF ⇒ BC is the corresponding side of EF

∴ AC = DF ⇒ AC is the corresponding side of DF

∴ ∠A ≅ ∠D ⇒ ∠A is the corresponding angle of ∠D

∴ ∠ABC ≅ ∠DEF ⇒ ∠ABC is the corresponding angle of ∠DEF

∴ ∠C ≅ ∠F ⇒ ∠C is the corresponding angle of ∠F

- Look to the answer to find the correct statement

∴ AC = DF

The statement must be true is AC = DF

Learn more:

You can learn more about the congruent of triangles in brainly.com/question/6108628

#LearnwithBrainly

7 0
3 years ago
Half Term 3 Open Book Assessment YEAR 8
olchik [2.2K]

Answer:

a. 4 out of the 5 are boys.

b. only 1 of the 5 is a girl.

7 0
3 years ago
The values of x and y are directly and one pair of values are given.
Anestetic [448]

Answer:

The relation is y = -1.5x

Step-by-step explanation:

x and y are directly proportional:

This means that the equation is given by:

y = ax

In which a is the multiplier that relates these two variables.

x= -4, y =6

We use this to find a. So

y = ax

6 = -4a

a = -frac{6}{4}

a = -1.5

So

The relation is y = -1.5x

7 0
3 years ago
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