Solve the Systems of equations. HELP PLEASE

Answer:

the other side has an 90° angle , it must be an acute triangle

Step-by-step explanation:

a triangle has a total angle of 180°

So if one side has an angle of 60° and the other has an angle of 30°, the other side must be the substraction of both angles to the 180° sum

180° - 60° - 30° = 90°

Answer: The longest side is twice as long as the shortest side.

Answer:

x = 75° and y = 105°

Step-by-step explanation:

In the given figure

∵ The angle of measure (180 - x) and the angle of measure y are

   corresponding angles

∵ Corresponding angles are equal in measures

→ Equate their measures

∴ 180 - x = y ⇒ (1)

∵ The angle of measure y and the angle of measure 75° are linear angles

∵ The sum of the measures of the linear angles is 180°

→ Add their measures and equate the sum by 180°

∴ y + 75 = 180

→ Subtract 75 from both sides to find y

∵ y + 75 - 75 = 180 - 75

∴ y = 105°

→ Substitute the value of y in (1)

∵ 180 - x = 105

→ Subtract 180 from both sides

∵ 180 - 180 - x = 105 - 180

∴ - x = - 75

∵ Divide both sides by -1 to find x

∴ x = 75°

Answer:

width: 7 length: 18

Step-by-step explanation:

they tell us the length is 2 times the width plus 4 more so the equation for one of the lengths is

2x + 4, where 'x' is the value of one width. but, because there are two sides for each the length and the width, the final equation will be:

2(2x + 4) + 2(x) = 50

then simplify and solve for 'x'

Answer:

x-int: (-250, 0) y-int: (100, 0)

Answer:

the y-intercept is ( 0,100) and the x- intercept is (-210,0)

correct me if i am wrong?

Step-by-step explanation:

Answer:

It is algebra

Step-by-step explanation:

do you want the answer?

Answer:

Idek but B and C are parallel

Step-by-step explanation:

Answer:

The correct answer is:

stratified sampling

Step-by-step explanation:

Stratified sampling is a type of sampling method where the population to be sampled is divided into subgroups or strata and then random selection is made, and these strata are formed based on some shared common characteristics. In this example, the population to be sampled is a population of professors, but the researcher went further to divide this group into professors, assistant professors, associate professors, adjunct professors, and visiting profesors.

Answer:

D. y=4x-1

Step-by-step explanation:

y=mx+b (This is the slope intercept formula) The M(X) represents the slope and the B represents the y intercept.

y=4x-1

Answer:

d. y = 4x -1

Step-by-step explanation:

y = mx + b

  m= 4

  b= -1

y = (4)x + (-1)

y = 4x - 1

can i get brainliest please?

Answer: 340$$$

Step-by-step explanation:

Basically you divide 680 by 2 cause 2 is half which is the same as 50% so its 340

Answer:

54

Step-by-step explanation:

63x 6/7

This question is incomplete, the complete question is;

Shoppers enter Hamilton place mall at an average of 120 per hour

what is the probability that at least 20 shoppers but no more than 23 shoppers enter the  mall between noon and 12:30 p.m.?

Answer:

the probability that at least 20 shoppers but no more than 23 shoppers enter the  mall between noon and 12:30 p.m

is 4.20787 × 10⁻⁸ ≈ 0.0000000420787  

Step-by-step explanation:

the probability that at least 20 shoppers but no more than 23 shoppers enter the  mall between noon and 12:30 p.m;

interval between noon and 12:30 is 30min

now the shoppers enter an average of  [(120 × 30) / 60] = 60 per 30min

so

P( 20 ≤ X ≥ 23 ) = P( X=20 ) + P( X=21 ) + P( X=22 ) + P( X=23 )

= [(e⁻⁶⁰(60)²⁰) / 20!] + [(e⁻⁶⁰(60)²¹) / 21!] + [(e⁻⁶⁰(60)²²) / 22!] + [(e⁻⁶⁰(60)²³) / 23!]

= [1.3159 × 10⁻⁹] + [3.7598 × 10⁻⁹] + [1.0254 × 10⁻⁸] + [2.6749 × 10⁻⁸]

= 4.20787 × 10⁻⁸ ≈ 0.0000000420787  

therefore the probability that at least 20 shoppers but no more than 23 shoppers enter the  mall between noon and 12:30 p.m is 4.20787 × 10⁻⁸ ≈ 0.0000000420787  

Answer:

b^2=c^2-a^2

Step-by-step explanation:

Answer:

See Below.

Step-by-step explanation:

We know that r and s are parallel. This means that p and q are transversals.

We also know that ∠1 and ∠4 are supplementary.

And we want to prove that p is parallel to q.

  Statements:                                 Reasons:

1) [tex]\bf{r\parallel s[/tex]                                              Given

2) [tex]\angle 1 \text{ and }\angle 4\text{ are supplementary}[/tex]     Given

3) [tex]\angle 1\text{ and } \angle 5 \text{ are supplementary}[/tex]     Consecutive (Interior) Angles Theorem

4) [tex]\bf{\angle 5\cong \angle 4}[/tex]                                      Congruent Supplements Theorem

5) [tex]p\parallel q[/tex]                                           Corresponding Angles Theorem Converse

And we are done!

Answer:

y=-1x-6

Step-by-step explanation:

the slope is -1

use y=mx+b

Plug  the point into y=mx+b, -7=-1(1)+b

-7=-1+b

add 1 both sides the y- intercept is b=-6

Answer:

7 7/24

Step-by-step explanation:

make it a mixed number and multiply then simplify

7/4 x 25/6

25 x 7=175

6 x 4=24

175/24

7 7/24

Answer:

9x^3 - 8x^2

Step-by-step explanation:

hope this helps :)

Answer:

i thank is  D

Step-by-step explanation:

You would multiply top and bottom by [tex]\sqrt{3}[/tex] to go from [tex]\frac{1}{\sqrt{3}}[/tex] to [tex]\frac{\sqrt{3}}{3}[/tex]

Multiplying a square root by itself is the same as squaring the value.

So, [tex]\sqrt{x}*\sqrt{x} = (\sqrt{x})^2 = x, \ \ \text{ when } x \ge 0[/tex]

Which is why we're able to get rid of the square root in the denominator. The square root and squaring operation effectively cancel each other out.

346 I think

Step-by-step explanation:

750-348=402

402-201=201

201+145=346

Answer:

C.6

Step-by-step explanation:

12-10=2, 12/2=6

,,,,,,,

Answer:

f(2) = 7

Step-by-step explanation:

Solve for f(-2) in f(x) = 3x + 1

x = -2

Plug in -2 for x in the equation:

f(2) = 3(2) + 1

Remember to follow PEMDAS. First, solve the multiplication, then add:

3 * 2 = 6

6 + 1 = 7

f(2) = 7 is your answer.

~

Step-by-step explanation:

[tex]{:}\longrightarrow[/tex][tex]\sf f (x)=3x+1 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf f (-2)=3 (-2)+1 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf f (-2)=-6+1 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf f (-2)=-5[/tex]

Answer:

4

Step-by-step explanation:

take 1 9/10 change it to 19/10 + 3/4. You will need to have a common denominator for any addition or subtraction with fractions. We multiply 19/10 by 4 to get 76/40. Multiply 3/4 by 10 to get 30/40. Now we have a common denominator.

Add across 76 + 30 = 106/40. Now simplify. How many times does 40 go into 106?

4 times. No remainder.

Answer:

X = 2

Y = -3

Step-by-step explanation:

     Now you have 2, -3

Answer:

0.15

Step-by-step explanation:

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Answer:

Angle4 and Angle12

Step-by-step explanation:

hope this helps if you need me to explain i will

Answer:

B, D, C

Step-by-step explanation:

Answer:8

Step-by-step explanation:

Answer:

2800-0

Step-by-step explanation:

yes like seriously tho if u didn't put that then u got urself an answer

Answer:

Step-by-step explanation:

There are lots of ways

to make 2,800. In this case,

I made each example a different sign,

making an example for each sign will be better than just addition or just any other sign.

Hope this helps! <3