Mathematics High School

ralph and edie each solved the equation (x-7)^2 - 100 = 0. ralph says the correct answer is x= -3. who is correct? how do you know?

Answers

Answer 1
Ralph is correct.
Explanation:
X = -3
(-3-7)^2-100 = 0
You do parentheses first according to PEMDAS so:
-3-7 = -10
(-10)^2-100 = 0
Next, you do exponents
-10^2 or -10 * -10 = 100
Finally, you subtract
100-100 = 0

Related Questions

I need help on this.. First person to answer this correctly gets a BRANLIST​

Answers

Answer: The relation is a function.

Step-by-step explanation: Since there is one value of y for every value of x in (-2,4), (3,7), (0,8), (5,8), and (1,6), this relation is a function.

I hope this helps you out!

Thank you all for helping so far, mind if I ask again, haha​

Answers

Answer:

10 < 18 + 7

10 < 25

True yyes

cuz it is above 10

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

For a point to satisfy an inequality, when it is pluged in, the inequality must be true. So, first, plug in 3 for x and 10 for y. After plugging in the points the inequality is 10< 6(3)+7, then simplify the inequality. This equals 10<25, which is a true statement. Therefore the answer is yes.

Mia and Mario specialize in producing the item in which she or he has a comparative advantage. Then they trade one pasta dish for one pizza.. Before specialization and​ trade, Mia and Mario produce 6 dishes of pasta and 6 pizzas an hour each. The total gains from specialization and trade are​ ___________

Answers

Answer:

6 pizza, 6 pasta

Step-by-step explanation:

Now from the question we can see that Mia has comparative advantage in Pasta production and Mario in Pizza production.

Now before they both specialized, Mia's production was 6 pizza, 6 pasta. Mario also was making 6 pasta, 6 pizza.

So in total both were making 12 pizza and 12 pasta.

After they had specialized, Mario's pizza production is 18 pizza and Mia's pasta production is 18 pasta.

So we have that mia is producing 6 more pizza, 18-12 = 6

and Mario is also producing 6 more pasta.

So there is net gain of 6 pizza and 6 pasta.

#Please rate positively...thank you

Anita drove at a constant speed of 70 mph per hour. How many miles did she travel in 6 hours?​

Answers

Answer:

420

Step-by-step explanation:

Speed x Time = Distance

70 x 6 = 420

Therefore your answer is 420.

Given: g(x)=3(x-5), find g(-1)

Answers

Answer:

45

Step-by-step explanation:

Answer:

-18

Step-by-step explanation:

g(x)=3(x-5)

g(-1)=3(-1-5)

g(-1)=3(-6)=-18

what is 1 1/3 x 1 3/4

Answers

Answer:

Step-by-step explanation:

I like to convert them to improper fractions first, so that will make 1 1/3 turn into 4/3, and 1 3/4 into 7/4, then multiply and you get 28/12 or 7/3 simplified

Answer:

0.416667 or [tex]\frac{5}{12}[/tex]

Step-by-step explanation:

(Please help)There are 16 cups in a gallon. The equation g = 1/16c gives the number of gallons in terms of the number of cups. Write another equation for this situation, giving the
number of cups in terms of the number of gallons:
C=

Answers

Answer:

c = 16g

Step-by-step explanation:

g = 1/16 c

Multiply both sides by 16.

16g = c

c = 16g

Answer:

c = 16g

Step-by-step explanation:

g=1/16c

This is an algebric equation that requires you to multiply both sides by 16.

g × 16 = 1/16c × 16

16g = c

What is 13 divided by 0.22 and round to the nearest hundredth

Answers

Answer:

59,09

.........................................................

pls help it’s timed loll

Answers

Answer:

A

Step-by-step explanation:

2.2*4 = 8.8

8.8+1.7= 10.5

Answer:

The answer is A 2.2

Step-by-step explanation:

2.2×4=8.8

8.8+1.7=10.5

The ratio of boys to girls on the school swim team is 5:11. If there are 80 students on the swim team, how many of them are boys?

Answers

25 boys is the correct answer!5:115 + 11 = 1616 x 5 = 80So we now know we have to multiply by 5.5 x 5 = 25 boys5 x 11 = 55 girls25:55 is the same as 5:11Please let me know if I am wrong.

question is the screenshot, thx

Answers

Answer: Given In the Chart Below

Step-by-step explanation:

In a quadrilateral ABCD , AB = BC and CD = DA . Then , the quadrilateral is a :

a) Parallelogram

b) Rhombus

c) Kite

d) Trapezium​

Answers

Answer : Kite

AB,BC and CD,DA represent two pairs of equal adjacent sides. We know that in a kite, the four sides can be grouped into two pairs of equal length sides that are adjacent.
Hence, the given quadrilateral is a kite.

6. The ratio of two supplementary
angles is 4:1. Find the measures of
both angles.

Answers

Answer:

smaller ∡ = 36°

larger ∡ = 144°

Step-by-step explanation:

1x + 4x = 180

5x = 180

x = 36

Given the following table and graph, write an equation to represent the exponential function

Answers

Answer:

amogus??

Step-by-step explanation:

Solve. Write your answer in interval notation.
|x + 6| ≥ 3x − 2

Graph if possible. Not necessary tho.

Answers

GccfffekykydkyejfHturhFlyd

Is the negative square root of 9 rational or irrational ​

Answers

Answer:

Rational

Step-by-step explanation:

-9 is rational because 9 is a perfect square and all perfect squares are rational.

A triangle has side lengths of (3.76 + 1.7) centimeters, (1.36 + 1.1) centimeters,
and (7.1c +5.1) centimeters. Which expression represents the perimeter, in
centimeters, of the triangle?

Answers

Answer:

Step-by-step explanation:

our triangle has one length:     3.76+1.7=5.46

                           another side: 1.36+1.1=2.46

                            last side:        7.1+5.1=12.20

Perimeter is=5.46+2.46+12.20=20.12 cm

1. If A = 2x – 7x2 + 3 and B = 4x2 – 12x, what is A + B?

Answers

Answer:

(2x-14)+(8-12x)

-14+8+2x-12x

-6-10

-16

Answer:

A+B=-29

Step-by-step explanation:

A=-25

B=-4

so B+A=-29

-25+-4=-29

pls help meeeeeeeeeeeeeeeeeeeee i need to figure out the 2 words

Answers

Answer:

who

not

is your answer

Step-by-step explanation:

hope it's helpful to you

have a great day ahead

Answer:

hotnotshotnetwetnewtoe

[tex]\huge\fbox\green{I think it help you}[/tex]

[tex]\bold{Kunal^Bodke}[/tex]

What is the mid point of a and b

Answers

(a+b)/2

Step-by-step explanation:

if a and b are the two end points of a straight line

what is the distance between -29 and 100
It's on a number line

Answers

Answer:

129

Step-by-step explanation:

distance from -29 to 0 plus 100 to 0

hope this helped :))

20 POINTS! PLEASE HELP ME

Answers

Answer:

3

Step-by-step explanation:

7/8=0

Solve six and two sixths times one and one half

Answers

Answer:

9.45

Step-by-step explanation:

6 2/6 = 6.3

1 1/2 = 1.5

6.3 * 1.5 = 9.45

9.45

¿cuales son las funciones de sunass, osinergmin y osiptel?

Answers

Answer:

la verdD no c

Step-by-step explanation:

pero tu pon lo q creas nadie es perfecto

Marcel bought a new pair of inline skates. Each wheel on the skates is 41 millimeters in radius. Which shows the number of millimeters traveled in 5 full rotations of a wheel?

Answers

Length length radius of a wheel in an inline skates = 41 millimeters

Circumference of wheel = Millimeters traveled by the wheel in one rotation

(pi value = [tex] \tt\: \frac{22}{7} [/tex])

Circumference of wheel :

[tex] = \tt2\pi r[/tex]

[tex] =\tt 2 \times \frac{22}{7} \times 41 [/tex]

[tex] = \tt \frac{2 \times 22}{7} \times 41[/tex]

[tex] = \tt \frac{44 \times 41}{7} [/tex]

[tex]\color{plum} =\tt 257.71 \: mm[/tex]

Thus, the wheel will travel 257.71 mm in one rotation.

Distance traveled by the wheel in 5 rotations :

= distance traveled by the wheel in 1 rotation × 5

[tex] =\tt 257.71 \times 5[/tex]

[tex]\color{plum} = \tt\bold{1288.55 \: mm}[/tex]

[tex] =\tt \frac{1288.55}{10} \: cm[/tex]

[tex] \color{plum}=\tt 128.855 \: cm[/tex]

▪︎Therefore, the distance traveled by the wheel in 5 rotations = 1288.55 millimeters or 128.855 cm.

A group of preschoolers was asked to name their favorite fruit. What percent of the kids chose grapes?

29%
79%
21%
31%

Answers

100 - 18 - 37 - 24 = 21

answer is 21%
Whats 9+10?
.
.
.
.
21

TL;DR
The answer is 21%

Lengths
Can be side lengths
of a triangle
Cannot be side
lengths of a triangle
9.5, 14.5, 4.5
3, 18,9
5, 15,8
27, 8,7

Answers

Answer:

9.5 14.5 and 4.5

Step-by-step explanation:

That’s correct

Solve for w

-w + 181 = 128

w = ____

Answers

w = -53
when you add negative numbers its basically subtracting

Rome had to pay yearly
tribute to Carthage..
Is this true or false

Answers

Answer:

True

Step-by-step explanation:

At least that's what wiki says

3) Find the area of the composite figure.
3 m
2 m
4 m

Answers

Answer:

2×4=8

3×4=12

12÷2=6

8+6=14

Step-by-step explanation:

Answer:

17m

Step-by-step explanation: Cut the triangle in half and place it over the other triangle creating a square. We know that one side is 3m so since all the sides of a square are equal 3 times 3 equals to 9. For the rectangle 2 times 4 is 8. So finally 8 plus 9 equals to 17. The area of the composite figure is 17m.

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