Mathematics High School

Which of the k values are solutions to the following equation?
k2 = 0.49

Answers

Answer 1

C and D bc +-0.7 is the answer
but because there no answer which contains both i think u should mark E

Answer 2

THIS is the answer both 0.7 and -0.7

Related Questions

(8x*+ 6x -6 ) + (3x- 7 +5)

Answers

Answer: =48x^2+3x−8

Step-by-step explanation:

8x(6)x−6+3x−7+5

=48x^2+−6+3x+−7+5

Combine Like Terms:

=48x^2+−6+3x+−7+5

=(48x^2)+(3x)+(−6+−7+5)

=48x^2+3x+−8

Answer:

=48x^2+3x−8

48x^2+3x-8........ this is the answer

Please help I need to figure out the answer to this expression!!!

Answers

Answer:

Step-by-step explanation:

7*4-3*8+2^2-6

7*4-3*8+4-6

28-3*8+4-6

28-24+4-6

4+4-6

8-6

I think it’s 2, lol

For the lunch special at a high school cafeteria, students can get either salad or french fries as a side order. The following table shows the number of each side order for the lunch specials purchased on one day, classified by the grade of the student
Grade 9
Grade 10
Grade 11
Grade 12
Total
Salad
37
34
21
28
120
83
71
57
37
248
French fries
Total
120
105
78
65
368

From those who purchased the lunch special that day, one student will be selected at random. What is the probability that the student selected will be in grade 10 given that the student ordered
french fries as the side order?
A
71/368
B
105/368
C
71/245
D
245/308

Answers

Answer:

C 71/248

Step-by-step explanation:

College Board

The probability that the selected student will be be in grade 10 given that the student ordered French fries is 71/245

P(French fries n grade 10) = 71 Total who ordered French fries = 248

The conditional probability can be defines thus :

Number in grade 10 who ordered French fries = 71

Total number who ordered French fries = 245

Hence,

P(grade 10 | French fries) = 71/245

Learn more : https://brainly.com/question/18904995

one number is two more than triple a second number. Their sum is 30. what is the smaller number

Answers

Answer:

Step-by-step explanation:

We can solve this problem by making an equation.

Let x represent the second number

3x + 2 will be the first number because it is 2 more than triple x

This makes our equation:

3x + 2 + x = 30

Combine like terms

4x + 2 = 30

Subtract 2 from both sides

4x = 28

Divide both sides by 4

x = 7

The smaller number aka the second number is 7

NEED HELP ASAP PLEASE HELPPPP!!!

The area of a rectangular warehouse measures 4,288 square feet. The width of the warehouse is 64 feet long. Draw a model to represent the problem, and then solve for the length of the warehouse. Use paper to show your work.

Answers

Answer:

800

Step-by-step explanation:

800

Answer:

Length is 67

Step-by-step explanation:

For the show your work bit, your gonna wanna divide 4288 by 64 to get 67 as your length. Then draw your rectangle with the 64 square feet on one side and put a w next to it. Then on the next side write 67 square feet with an L next to it. Hope this helped!!

Someone please help me(Ik it’s not B)

Answers

Answer:

Step-by-step explanation:

point slope form is y - y1 = m (x - x1)

so substitute your values to get y + 5 = 5/7 (x - 8)

Work out the difference between 88.1 and 2.81

Answers

Answer:

85.29

Step-by-step explanation:

88.1 - 2.81

Ans:85.29

Explanation:88.1 - 2.81

What is the equation in slope-intercept form of a line that passes through the point (4, 5) and has a slope of 12?
Y=_x+_

Answers

Answer:

y= 12x -43

Step-by-step explanation:

y-5 = 12(x-4)

y-5= 12x-48

+5 +5

y= 12x- 43

determine the order of the following differential equations and whether they are linear or non linear. 2nd order nonlinear 1. (1 y2)d2ydt2 tdydt y

Answers

(a) Linear differential equation of second order

(b) Linear differential equation of second order

(d) Non-linear differential equation of first order

(e) Non-linear differential equation of second order

(f) Linear differential equation of third order

(g) (a) and (d) are initial value problems

Differential equations are sometimes described as equations containing the derivatives of one or more dependent variables with respect to one or more independent variables. An ordinary differential equation is one that contains just one independent variable.The order of a differential equation is the highest differential coefficient.Degree is the power of the highest order derivative when the differential equation is in polynomial form.An initial value problem (IVP) in multivariable calculus is an ordinary differential equation with an initial condition that determines the value of the unknown function at a specific location in the domain.

To learn more about calculus, visit :

https://brainly.com/question/22810844

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A line has an undefined slope and passes through the poimt (7,11) write the equation of the line

Answers

Answer:

x = 7

Step-by-step explanation:

An undefined slope indicates the line is vertical and parallel to the y- axis with equation

x = c ( c is the value of the x- coordinates the line passes through )

the line passes through (7, 11 ) with x- coordinate 7 , then

x = 7 ← equation of line

Last year, Mr. Smith's biology class averaged 73 on their first test. This year, his new class averaged 87 on the
same test. Based on these results, is it reasonable to conclude that this year's class is more intelligent?
O Yes, a grade of 87 is higher than a grade of 73.
O Yes, the study was done in an academic setting.
O No, the experiment was not double-blind.
No, there was no use of a placebo in the experiment.
O No, there may be other differences between the two years besides the grades.

Answers

Answer:

Yes

Step-by-step explanation:

87 is higher than 73

E. No, there may be other differences between the two years besides the grades.

For your question: "Last year, Mr. Smith's biology class averaged 73 on their first test. This year, his new class averaged 87 on the

same test. Based on these results, is it reasonable to conclude that this year's class is more intelligent?"

The answer would be E

jim drives 350 miles in 5 hours hopw long does he drive in 1 hour

Answers

70 miles cuz 350 divided by 5 equals 70

Proportional means
Check ALL that apply.
*
same
equal
different
other

Answers

Answer:

promotional means same

hope it may help if it so please mark as brienlist

Which function is equivalent to g(x) = x2+ 15x - 54?

Answers

Answer:

g(x) = (x+18) (x-3)

Step-by-step explanation:

x²-3x+18x-54

x(x-3)+18(x-3)

(x-3)(x-18)

The function equivalent to [tex]g(x) = x^{2} +15x-54[/tex] is [tex](x - 3) (x- 18)[/tex].

Here, the function is given as;

[tex]g(x) = x^{2} +15x-54[/tex]

What is Function?

A function is defined as a relation between a set of inputs having one output each.

Now, function is given as;

[tex]g(x) = x^{2} +15x-54\\g(x) = x^{2} +18x-3x-54\\g(x) = x(x+18)-3(x+18)\\g(x) = (x+18)(x-3)[/tex]

Hence, The function equivalent to [tex]g(x) = x^{2} +15x-54[/tex] is [tex](x - 3) (x- 18)[/tex].

Learn more about the Function visit:

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On Monday, I bought 23 strawberries. On Tuesday, I ate 8 of the strawberries. Now, I want to divide the remaining strawberries into bags of 5 strawberries each.

Answers

Answer:

you will have 3 bags

Step-by-step explanation:

Answer:

1 bag = 3 strawberries

Step-by-step explanation:

monday = 23

tuesday = 23 - 8 = 15

now = 15 into 5 bags

1 bag = 15/5

1 bag = 3 strawberries

When a number is decreased by 4%, the result is 66. What is the original number to the nearest tenth?

Answers

Answer:

68.8

Step-by-step explanation:

100% = x number

96% = 66

so 100%

= 68.75

to the nearest tenth is 68.8

If tax was 8.25% on the $220 total for the items purchased at Target, what was the total cost of the items including tax?

Answers

Answer:

$238.15

Step-by-step explanation:

8.25% = 8.25/100 or 0.0825

Multiply 0.0825 and 220 to get $18.15. That's how much the tax is.

Add 220 and 18.15 to get $238.15

Answer:

$238.15

Step-by-step explanation:

To find the total cost of the items including tax you will need to multiply the cost of the items by the decimal form of 8.25%.

The decimal form of 8.25% is .0825. When turning percents to the decimal form we move the decimal two places to the left.

Now we multiply!

(220)(.0825) = 18.15

Now add 18.15 onto the 220 to find the total cost including tax:

220 + 18.15 = 238.15

Therefore, the total cost of the items including tax is $238.15.

I hope this helps!!

- Kay :)

How do you calculate rate of change?

Answers

ANSWER:
Change in the Independent Variable / Change in the Dependent Variable

hope this helps!!

Answer:

The calculation for ROC is simple in that it takes the current value of a stock or index and divides it by the value from an earlier period. Subtract one and multiply the resulting number by 100 to give it a percentage representation.

Step-by-step explanation:

Help me please I need an answer asap
Which of the following statements would best represent the value of a? PLEASE HELP

Answers

Answer:

c option

Step-by-step explanation:

please mark me brainliest and 5 star

Mary says that -5 x 2 = -3. Explain the mistake Mary made and write the correct number sentence including the correct answer.

Answers

Answer:

it should be -10

Step-by-step explanation:

5 x 2 is 10 but you add the negative. Mary added instead of multiplied.

Answer:just report it or sumthing

Step-by-step explanation:

Thanks for the Help, i love you guys

Answers

Answer:

b i think

Step-by-step explanation:

Cereal - 13.8 ounces for $4.14 =

Answers

Answer:

30¢ per ounce

Step-by-step explanation:

I'm not exactly sure what your asking, but I'm going to assume that your asking for the unit price.

[tex]\frac{4.14}{13.8}=0.3[/tex]

The area of a square backyard is
400 square meters. What is the
length of each side of the
backyard?

Answers

Answer:

100 meters

Step-by-step explanation:

Since the backyard is a square, each side is the same length and there are 4 sides. So, 400÷4=100

Kayla's backyard is a rectangle with dimensions of 18 feet by 22 feet. If she covers the ground with a circular hot tub with a diameter of 14 feet, what is the approximate area of the ground, in square feet, that remains exposed?

Answers

Backyard area = 18 x 22 = 396ft²

Area of a circle = pi x radius² (radius = diameter/2)
Area of circular hot tub = pi x 7² = 153.938ft²

396 - 153.938 = 242.06ft²

71.9 divide by 8 using long division.

Answers

Answer:

8.9875

Step-by-step explanation:

Answer:

8.9875

calculators solve (almost) every problem

Evaluate each using the values given.

1. 6c(a+a+a); use a=1, and c=3

Answers

Answer:

Step-by-step explanation:

6c(3a)

c = 3

a = 1

6*3(3(1) )

6 * 9

Twenty percent of the shoes in a factory are black. One shoe is chosen and replaced. A second shoe is chosen and replaced. Then a third shoe is chosen. What is the probability that none of the shoes are black? The probability that none of the shoes are black is .

Answers

Answer:

I think it is 1/5 chance

bunch of questios\ns

1. Solve each inequality. Try to solve some using algebra and others using graphing on a number line.
Express each result using interval notation.
(a) x + 5
3
> 2
(b) −2x − 1 ≤ −9
(c) x
2 ≤ 9
2. If a > b > c > d, then which is larger, a + c or b + d? Can we tell from a > b > c > d which of a + d and
b + c is larger? (Problem 9.25 in the textbook, page 283)
If you are stuck, Problems 9.1 and 9.2 in the textbook may help.
3. Back in elementary school, I learned a great magic trick to compare two positive fractions. Here’s
my magic trick in action. Consider the fractions 5
19 and 6
23 . I multiply the numerator of the first and
the denominator of the second, and get 5 · 23 = 115. I multiply the numerator of the second and the
denominator of the first, and get 6 · 19 = 114. Because 115 > 114, I know that 5
19 >
6
23 .
Why does this magic trick work? In other words, if a, b, c, and d are positive, then why does ad > bc
mean that a
b
>
c
d
? (Problem 9.28 in the textbook, page 283)
If you are stuck, Problem 9.3 in the textbook may help.
4. Which number is bigger, −
1227
1229 or −
1229
1231? Do not use a calculator.

Answers

Answer:-4.86

Step-by-step explanation:.

Jessa completed a bike ride in 3 hours and 18 minutes. Write Jessa's biking time as a decimal to TWO decimal places.

Answers

Steps to Calculate Hours

3ℎ+18×1ℎ60+0×1ℎ3600
3
h
r
+
18
m
i
n
×
1
h
r
60
m
i
n
+
0
s
×
1
h
r
3600
s
=3ℎ+0.3ℎ+0ℎ
=
3
h
r
+
0.3
h
r
+
0
h
r
=3.3ℎ

Steps to Calculate Minutes

3ℎ×601ℎ+18+0×160
3
h
r
×
60
m
i
n
1
h
r
+
18
m
i
n
+
0
s
×
1
m
i
n
60
s
=180+18+0
=
180
m
i
n
+
18
m
i
n
+
0
m
i
n
=198
=
198
m
i
n

Steps to Calculate Seconds

3ℎ×36001ℎ+18×601+0
3
h
r
×
3600
s
1
h
r
+
18
m
i
n
×
60
s
1
m
i
n
+
0
s

=10800+1080+0
=
10800
s
+
1080
s
+
0
s
=11880
=
11880
s
hope this helps

A business building has several office spaces for rent. Each
office is in the shape of a right triangle. If one side of the
office is 11 feet long and the longest side is 15 feet long,
what is the length of the other side?

Answers

Answer:

104

Step-by-step explanation:

Because the square root of 104 is 10.433

Answer:

104

Step-by-step explanation:

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Which of the k values are solutions to the following equation? k2 = 0.49

Answers

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Which of the k values are solutions to the following equation?
k2 = 0.49