please help me due soon

The statement three times the sum of the opposite of a number and -7

is 3( - n - 7).

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, Three times the sum of the opposite of a number and -7.

Let the number be 'n' and its opposite number be '-n'.

This statement can be numerically represented as,

3( - n + (- 7)).

= 3( - n - 7).

= - 3n - 21.

learn more about numerical expressions here :

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Answer:

x = -7

Step-by-step explanation:

Hello!

Answer:

4

Step-by-step explanation:

2+2=4

Hope this helps!

Answer:

[tex]40 yds \: + 8hrs\times \frac{15yds}{hr } = \\ 40yds+ 120yds \: = 160yds[/tex]

Answer:

See below

Step-by-step explanation:

The Triangle Angle Sum Theorem states that the interior angles of a triangle always add up to 180°. The Exterior Angle Theorem states that an exterior angle of a triangle is equal to the sum of the two remote interior angles (see diagram).

Answer: 2 soulutions

Step-by-step explanation: Just factor them and solve the answer would be x = 4 √3 + 8 in its exact form and x = 14.92820323... in its decimal form

#10

[tex]\\ \sf\longmapsto 8^1=8[/tex]

#11

[tex]\\ \sf\longmapsto 1^8=1[/tex]

#12

[tex]\\ \sf\longmapsto (-5)^3=-125[/tex]

#13

[tex]\\ \sf\longmapsto (-5)^4=625[/tex]

Answer:

Tn=a+(n−1)d, where a= First term, d= Difference between terms ... (2)

Equating (1) and (2)

6n+5=a+(n−1)d

6n+5=a+nd−d ..... (3)

Equating n terms:6n=nd

d=6 ...... (4)

Substituting (4) in (3)

6n+5=a+6n−6

5=a−6

a=11 ..... (5)

Now

Sn=2n(2a+(n−1)d)

Sn=2n(a+Tn) ....... (6)

Substituting (1) and (5) in (6)

Sn=2n(11+6n+5) 

Sn=2n(16+6n) 

Sn=n(8+3n) 

Answer:

Desde los 30 metros: 5 piezas de 6 metros

Desde los 48 metros: 8 piezas de 6 metros

Desde los 72 metros: 12 piezas de 6 metros

Step-by-step explanation:

Cada rollo es divisible por 6

Answer:

0.25

Step-by-step explanation:

Half of a tenth in 5 hundredths.

To find the midpoint of 0.2 and 0.3, think of it as 20 and 30.

What would be the midpoint of 20 and 30? 25.

Therefore, 0.25 would be the midpoint of 0.2 and 0.3

-kiniwih426

Answer:

The second one is 33

The first one is 17

Step-by-step explanation:

For the first one your just adding three the second one your just adding 8

Answer:

0

Step-by-step explanation:

5 - 0 = 5

2 - 2 = 0

5/0 = 0

Answer:

Step-by-step explanation:

Answer:

98 or 105

Step-by-step explanation:

Answer:

∠3 = 95°

∠4 = 85°

Step-by-step explanation:

Angle 3 and the angle that is already given are Corresponding angles meaning they will be equal.

Angle 3 and Angle 4 are Supplementary angles so their degrees add up to 180°.

Hope this helps!

Answer: 204

Step-by-step explanation:

Answer:

29.03

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks

Answer:

25

Step-by-step explanation:

75 ÷ 3 = 25

25 = 25

Answer:

a. Find the largest and smallest numbers and then subtract the smallest from the largest number.

b. 52

Step-by-step explanation:

Range Definition: Difference between largest and smallest numbers.

1. Find the largest and smallest numbers;

Biggest: 17|5 (175)

Smallest: 12|3 (123)

2. Subtract the smallest number from the largest number;

175 - 123 = ?

? = 52

The answer is C

The best answer is C

Answer:

x_>_ -21

Step-by-step explanation:

that's the answer trust ........... n nnmmmm

Answer:

84°+z°=180°[co exterior angles]

z°=180°-84°

z°=96°

84°=(3x+6)° [alternate exterior angles]

84 - 6=3x

78/3=x

26=x

Answer:

7.987

Step-by-step explanation:

  1 4

×     5 7 0 5

+         7 0

+ 0 0 0 0 0  

+     9 8    

+   7 0      

=  7 9 8 7 0

Rewrite the product with 4 total decimal places.

Answer = 7.9870

Therefore:

0.14 × 57.05 = 7.9870

Answer:

71 degrees

Step-by-step explanation:

It is quite hard to see the question but I believe we are looking for the unknown angle E (correct me if I am wrong and I will revise my answer!)

Step-by-step explanation:

Since x=−23 x = - 2 3 is a vertical line, the slope is undefined

Answer:

Since x=−23 x = - 2 3 is a vertical line, the slope is undefined.

Step-by-step explanation:

Answer:

(2,-1)

Step-by-step explanation:

If you start at (2,-1) and go 3 units right, you land at (5,-1). Then, when you go up 4 units you land at (5,3)

Answer:

D

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ ADE is an exterior angle of the triangle , then

80° + ? = 100° ( subtract 80° from both sides )

? = 20° → D

Answer:

See explanation

Step-by-step explanation:

For any line, with slope [tex]m[/tex] and y-intercept [tex](0, b)[/tex] the line is [tex]y=mx+b[/tex].

1)

[tex]m=6, b=-2[/tex], Line: [tex]y=6x-2[/tex]

2)

[tex]m=2/3, b=5[/tex], Line: [tex]y=2/3*x+5[/tex]

3)

[tex]m=-5, b=0[/tex], Line: [tex]y=-5x[/tex]

4)

[tex]m=0, b=-1[/tex], Line: [tex]y=-1[/tex]

5)

[tex]m=-1, b=4[/tex], Line: [tex]y=-x+4[/tex]

Answer:

x<0.5

Step-by-step explanation:

Hello lzukuXKachan!

[tex] \huge \boxed{\mathbb{QUESTION} \downarrow}[/tex]

Solve 2(1 – x) > 2x.

x < 2

x < 0.5

x > 0.5

x > 2

[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]

[tex]2 ( 1 - x ) \gt 2 x[/tex]

Firstly, cancel out 2 from both sides of the equation. Now, the equation will be....

[tex]1 - x > x[/tex]

Now, subtract x from both sides.

[tex]1 - x - x > 0[/tex]

Combine -x & -x. It'll be one -2x.

[tex]1-2x>0 [/tex]

Again subtract 1 from both the sides. Remember :- any number subtracted from 0 will result in its negation

So, it'll be -1.

[tex]-2x>-1 [/tex]

Divide both sides by -2.

[tex]x<\frac{-1}{-2} \\ [/tex]

Remove the negative signs. (negative ÷ negative = positive)

[tex]x<\frac{1}{2} \\ = \large\boxed{ \boxed{ \bf \: x < 0.5}}[/tex]

__________________

Hope it'll help you!

ℓucαzz ッ

Answer:

2

Step-by-step explanation:

Let the number be x

3x + 7=15-x

4x = 8

x=2