Mathematics High School


Without graphing, tell if the coordinate (-3,-15) is a solution
to the inequality shown below by choosing TRUE or FALSE.
2x – y < 5
True
False

Answers

Answer 1

Answer:

False

Step-by-step explanation:

That's your answer

Related Questions

Aaron is having rain gutters installed around the perimeter of his roof. How much will he spend if he is charged $3.50 per foot?

Answers

Answer:

$294.35

Step-by-step explanation:

left and right side of the house: 15 ft + 15 ft = 30 ft

top part of the house: (20 ft - 12 ft = 8 ft) 8ft + 9.6 ft + 7.5 ft = 25.1

bottom part of the house: (20 ft - 15 ft = 5 ft) 15 ft + 5 ft + 4. 5 ft + 4.5 ft = 29

30ft + 25.1ft + 29ft = 84.1

84.1 ft x $3.50 = 294.35

Solve using elimination.
-6x + 2y = 14
x + 4y = -11

Answers

Answer:

8x+6y=-11

Step-by-step explanation:

collect like terms

the answer is X=-3 Y=-2 hope that helped

What is the perimeter of a square if the length of one of the diagonals is 12 cm?
6v2 cm
2412 cm
48 cm
24 cm

Answers

Answer:

Step-by-step explanation:

Use Pythagorean theorem to find the length of the square.

Length of the square = a

a² +a² = diagonal²

2a² = 12²

2a² = 144

a² = 144 ÷ 2

a² = 72

[tex]a =\sqrt{72}\\\\ = \sqrt{2*2*2*3*3}\\\\ = 2*3\sqrt{2}\\\\a = 6\sqrt{2}\\\\\\\\Perimeter= 4a\\\\ = 4*6\sqrt{2}\\\\= 24\sqrt{2} cm[/tex]

i need help with this​

Answers

Answer:

The answer is B

Step-by-step explanation:

Hey Lets Get Some In the

Answers

Step-by-step explanation:

in the?¿????????!?????

Answer:

wott?

Step-by-step explanation:

What is perimeter of the semi circle?

Answers

Answer:

54.22 mm

Step-by-step explanation:

Find the circumference of the circle and then divide it by 2.

We start with the formula for the circumference for the circle:

C = 2πr

To find r, divide 22 by 2:

22/2=11

Now find the cicumference:

C = 2πr = 2(3.14)(11) = 108.46 mm

NOW, to find the perimeter of the semicircle, divide the circumference by 2:

108.46/2 = 54.22 mm

find p when t=3 if P=4t squared

Answers

The answer is as follows:

P = 4(9) = 36

helppp please reallly fasttt!!!

Answers

Answer:

Step-by-step explanation:

[tex]3^{2}+ 7^{2} = EF^{2}[/tex]

[tex]58=EF^{2}[/tex]

[tex]EF=\sqrt{58}[/tex]

Someone help quickly please!

Look at picture

Name the sequence of transformations that moved figure A to figure D

A. Translation, Translation, Rotation
B. Reflection, Reflection, Rotation
C. Translation, Reflection, Rotation
D. Rotation, Translation, Reflection

Answers

Answer:

translation . translation. rotation

If you guys are struggling, try looking up the whole worksheet with the tittle of the assignment

Answers

Answer:

YEAAAAAAAAAAAAAAAAAAAA

Step-by-step explanation:

Answer:

yeeeeeeeeeeeeeeeeee

Step-by-step explanation:

A small glass holds about 250 what ?

Answers

litros de agua porque nolose pero quiero los pùntos

Agree or Disagree

Rotating a regular decagon by 75° carries the decagon onto itself. ​

Answers

Answer: False
Reasoning: needs to be a multiple of 36°

Evaluate (4)^-4 pls answer!!!

Answers

Answer:

Fraction: 1/256 or

Decimal: 0.00390625 or 0.00391

Step-by-step explanation:

4^-4=1/4^4

4^4=256

=1/256

Graph the number on the number line

Answers

Answer:

The number 8 should be at the right side point 8

Step-by-step explanation:

hope this helps!

Find the area of the given rectangle.

Answers

Answer:

3x^2+10x-48

Step-by-step explanation:

(3x-8)(x+6)

3x*x+18x-8x-48

3x^2+10x-48

Answer:

C

Step-by-step explanation:

Expand the following 2(x-6)

Answers

2x-12

You multiply everything in the bracket by 2
2x-12
:)))))))))))))))

A triangular pane of glass has a height of 42 inches and an area of 336 square inches. What is the length of
the base of the pane?
PLEASE HELP IM BEGGING

Answers

Answer:

its 16

Step-by-step explanation:

area for a triangle is 1/2 the base times the height.

IN order to find out the base you need to multiply the area by two and then divide by 42 to find the base. X will represent the base

so

336 *2 = 42x

672= 42x

672/42=x

16 = x

Answer: 16

Step-by-step explanation:

Ted puts songs A B and C on shuffle play. How many possible orders of songs can there be

Answers

Answer:

6

Step-by-step explanation:

1.A,B,C

2.C,B,A

3.A,C,B

4.B,A,C

5.B,C,A

6.C,A,B

What is the simplified form of this expression?
(3 - 13x - 7x?) - (5X2 + 12x - 10)

Answers

Answer:

-5x^2-32x+13

Step-by-step explanation:

(3-13x-7x)-(5x^2+12x-10)

3-20x-5x^2-12x+10

-5x^2-32x+13

Answer:

-12x^2-25x+13 is the actual answer on Plato

Step-by-step explanation:

can you answer this because i do not know

Answers

Answer:

3679

Step-by-step explanation:

11,472-7,793=3679 miles left

Which graph best represents y=−2x+3

Answers

Answer:

download graphing calc, it'll help u sm

Step-by-step explanation:

　　°　　　•　　.°•　　　 ✯

　　　★　*　　　　　°　　　　 　°·　　                          

.　　　•　° ★　•  ☄

▁▂▃▄▅▆▇▇▆▅▄▃▁▂

Ethan has $620 to spend at a bicycle store for some new gear and biking outfits. Assume all prices listed include tax. He buys a new bicycle for $427.57. He buys 4 bicycle reflectors for $11.38 each and a pair of bike gloves for $31.41. He plans to spend some or all of the money he has left to buy new biking outfits for $57.75 each. Write and solve an inequality which can be used to determine oo, the number of outfits Ethan can purchase while staying within his budget.

Answers

Answer: 620≥ 427.57+ 11.38(4)+ (31.41) +57.75x

Step-by-step explanation:

So our limit is the 620$ that he has to spend. We know for a fact that the bike costs about 427.57 dollars. 4  $11.38 reflectors are purchased as well as gloves for 31.41.  Now however many outfits he can purchase cannot exceed or go over his money limit of 620 so the variable (x) represents how many outfits he can buy without going over.

We are required to write an inequality for the problem and also solve it

The number of biking outfit Ethan can purchase is 2

Given:

Total amount Ethan has = $620

Amount of bicycle = $427.57

Bicycle reflector = $11.38

Cost of 4 Bicycle reflector = $11.38 × 4

= $45.52

Cost of bike glove = $31.41

Cost of biking outfit = $57.75

Write an inequality to solve for the number of biking outfit Ethan can purchase

let

x = number of biking outfit Ethan can purchase

620 ≥ 427.57 + 45.52 + 31.41 + 57.75x

620 ≥ 504.5 + 57.75x

620 - 504.5 ≥ 57.75x

115.5 ≥ 57.75x

x ≥ 115.5 / 57.75

x ≥ 2

https://brainly.com/question/21866486

In a statistics activity, students are asked to determine if there is a difference in the proportion of times that a spinning penny will land with tails up, and the proportion of times a spinning dime will land tails up. The students are instructed to spin the penny and the dime 30 times and record the number of times they land tails up. For one student, the penny lands tails side up 18 times, and the dime lands tails side up 20 times.

Based on the 98% confidence interval, (–0.36, 0.22), is there evidence of a difference in proportions of tails side up for a penny and a dime?

There is convincing evidence because the two sample proportions are different.

There is not convincing evidence because the interval contains 0.

There is not convincing evidence because the interval contains both negative and positive values for the true difference.

Answers

Answer: B) There is not convincing evidence because the interval contains 0.

==============================================================

Explanation:

The 98% confidence interval (-0.36, 0.22) means we are 98% confident that the difference of proportions p1-p2 is somewhere between those two endpoints of -0.36 and 0.22 Values in this interval are possible values of p1-p2.

Note how 0 is in this interval. So it's possible that p1 - p2 = 0. Because of this, we fail to reject the null hypothesis. The null in this case is that p1 - p2 = 0 which can be restated as p1 = p2. The null is the assumption that the two population proportions (p1 and p2) are the same.

The alternative hypothesis is that p1-p2 is not zero. If we got a confidence interval like (0.22, 0.55), this example doesn't have 0 in the interval, then that would mean we reject the null since its unlikely that p1-p2 is equal to zero.

----------------

In short,

If the confidence interval contains 0, then you fail to reject the nullIf the confidence interval doesn't contain 0, then you reject the null.

In this case, we fail to reject the null and we don't have enough evidence to show that p1 = p2 is false. So for now, we assume it's true.

if x + 1/x = 5, find the value of x^3 + 1/x^3

Answers

Answer:

x=5/3 your answer right answer

Answer:

110

Step-by-step explanation:

The expansion (a + b)³ is

(a + b)³ = a³ + b³ + 3ab(a + b)

Then

(x + [tex]\frac{1}{x}[/tex] )³ with a = x and b = [tex]\frac{1}{x}[/tex]

= x³ + [tex]\frac{1}{x^3}[/tex] + 3x . [tex]\frac{1}{x}[/tex] (x + [tex]\frac{1}{x}[/tex] )

Thus

x³ + [tex]\frac{1}{x^3}[/tex] = (x + [tex]\frac{1}{x}[/tex] )³ - 3(x + [tex]\frac{1}{x}[/tex] )

           = 5³ - 3(5)

           = 125 - 15

           = 110

Lütfen cevaplarmısınız ödevi çok acil​

Answers

I’m going to answer them for you In English
1: 3x = 15
We divide 3 from both sides
X= 5

2: 2a + 5 = 25
Take the 5 to the other side the sign will be negative 25-5= 20
2a = 20
Divide both sides by 2a
You will get a= 10

Question 8: -7b + 5 = 4b + 13 what is b?
You will collect the like term first
-7b -4b = -5 + 13
-11b = 8
Divide both sides by 11 you get -1.37.

Question 12: x/4 = 5 what is x?

You do cross multiplication the number doesn’t have any denominator it’s always 1
1.x = 1x
4.5= 20

1x= 20
X=20

Hope this helped I didn’t do some of them sorry

Write with a single exponent
b. 1/10•1/10•1/10•1/10•1/10•1/10•1/10=

Answers

Answer:

1 x 10^-7

Step-by-step explanation:

Answer:

l;komjni

Step-by-step explanation:

help click all the questions

Answers

Answer:1,grams 2,b 3, id k srry

Step-by-step explanation:

8. A
9. B
10. B
(i think..)

The amount of p paint needed to paint the walls of a Grade 7 classroom in San Jose
National High School varies directly as the area A of the wall. If 3 gallons of paint can
paint a 63 m2 wall, how many gallons of paint are needed to paint a wall with an area of
136 m2?​

Answers

Answer:

6.4 gallons

Step-by-step explanation:

1 gallon can cover 21 m2 and 21 divided by 136 is 6.4 g

HELP ME 7th grade math
What is the total amount of cardboard needed to manufacture this polyhedron? (Find the surface area)
​Plz answer

Answers

the answer is 62.715 :)

Which equation can be used to solve for x in the following diagram?

Answers

Answer:

4x-20 = 60

Step-by-step explanation:

4x-20=60. Hope this helps
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