Mathematics High School

please help me I'm confused ​

Please Help Me I'm Confused

Answers

Answer 1

Answer: The correct answer is 8^2 or 64

Step-by-step explanation: Can I please get the brainliest answer.

Answer 2

Answer:

8²

Step-by-step explanation:

When we divide numbers with exponents that have the same bases, we can just subtract the exponents. So, 8^9/8^7 equals 8^(9-7) = 8^2 (Which equals 64, but it isn't a power).

Related Questions

Please help due today

Answers

Answer:

3 & 1

6 & 2

9 & 3

12 & 4

Step-by-step explanation:

Hope that helps!

Dollars- 9
Pounds- 2, 4

A set of biology exam scores are normally distributed with a mean of 70 points and a standard deviation of six points X equal the score on a randomly selected exam from the set find P(X< 73)

Answers

Answer: .69

Step-by-step explanation:

Answer on khan

We can write the value in the range P(64 < {x} < 76) as 0.68.

What is standard deviation?

In statistics, the standard deviation is a measure of the amount of variation or dispersion of a set of values.

Given is that a set of biology exam scores are normally distributed with a mean of 70 points and a standard deviation of six points X equal the score on a randomly selected exam from the set.

It is given that -

μ = 70

σ = 6

For the range of {x}, we can write -

(μ - σ) < {x} < (μ + σ)

64 < {x} < 76

We can write the range of {z} value as -

(64 - 70)/6 < {z} < (64 + 70)/6

- 1 < {z} < + 1

Now -

P(64 < {x} < 76) = P(x < 76) - P(x < 64) = 0.84 - 0.15 = 0.68

Therefore, we can write the value in the range P(64 < {x} < 76) as 0.68.

To solve more questions on standard deviation, visit the link below -

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One of the legs of a right triangle measures 2 cm and its hypotenuse measures 18 cm.
Find the measure of the other leg. If necessary, round to the nearest tenth.

Answers

Answer:

17.9

Step-by-step explanation:

Determine the common factors and HCF for each of the following terms.

b) 2b, 3b
e) 5bc, 2c2, 3cd
f) 4a2b, 8b2c, 6bcd

Help please and explanation..

Answers

Answer:

b) b

e) c

f) 2b

Step-by-step explanation:

you look for numbers that can divide them all at once

A triangular prism has a base edges 2cm, 4cm, and 5cm long. It’s lateral area is 231cm . What is the height of the prism

Answers

Answer:

For your specific problem, h = 300 / (4 + 5 + 6) = 300 / 15 = 20

If the RADIUS of a circle is 9 meters, then the DIAMETER is? *
25 points
4.5 meters
12 meters
18 meters
27 meters

Answers

The diameter is 18 meters, d = 18m

Sam wants a television.He can either buy or rent it.The cost of buying it is $960.Sam would pay a deposit of 30% followed by 12 equal month after payments.
1)Calculate the deposit. 2)Calculate each monthly payment.​

Answers

1.) 288
2.) 56

The deposit would be 960x.30 = 288
Monthly payment would be 960-288= 672
672/12= 56

Answer:

1.  deposit = $288

2. monthly payments = $56

Step-by-step explanation:

960 x 0.3 = 288

960 - 288 = 672

672/12 = 56

The height, h, of an object that is projected straight downward from a ledge 500 feet above the ground with initial velocity 10 feet per second is given by the equation h = 500 - 10t - 16t^2 where t = time in seconds. After how many seconds will the object be 100 feet above the ground?

A. 2.21 seconds
B. 3.85 seconds
C. 4.70 seconds
D. 40 seconds ​

Answers

The answer to this question is C

Which statement(s) describe perpendicular lines? Choose ALL that apply.

A. Perpendicular lines never meet or cross.

B. Perpendicular lines form a 90 degree angle.

C. Perpendicular lines intersect.

Answers

Perpendicular line never meet so the answer is A
The answer is B & C. Parallel line are the lines that never meet or cross.

what's the answer to 9 x (-6)=

Answers

Answer:

-54

Step-by-step explanation:

a positive times a negative is a negative always

Answer:

Answer: -54

Multiply them and add a negative symbol

please help i need this rn. no spammers please.

Answers

Answer:

x = -6 & y= 42

Step-by-step explanation:

I hope this helps :)

x = 6, y = -42

Substitution:

-7x = -5x - 12

-2x = -12

x = 6

When x = 6,

y = -7(6) = -42

Solve for X when......................

Answers

Answer:

-2 2

3 0

-1 -5

Step-by-step explanation:

-2 + 0 = -2 -5 + 7 = 2

1 + 2 = 3 0 + 0 = 0

3 + (-4) = -1 - 4 + (-1) = -5

3 ve 4 ün ortak katları acil cevap lütfen​

Answers

Jama works for ABC, pays 1/5 of his social service salary, 1/10 of his rent, 3/5 of his children's education with $ 1800 left, and attends night classes at university and earns $ 500.

produce all his wages?

Choose the correct simplification of (5xy^7)^2(y^2)^3.

Answers

Answer:

25x^2y^20

Step-by-step explanation:

Solve each system of equations using the substitution method

Give the solution in (x,y) form​

Answers

Step-by-step explanation:

y=-3+5x

substitute y into equation 2

3x-8y=24

3x-8(-3+5x)=24

3x+24-40x=24

x=0

y=-3+5(0)

y=-3

(x,y)=(0,3)

Work out (5.32 x 10^-7): (2.5 x 10^-5)
Give your answer in standard form​

Answers

Answer:

1.33×10^-6

Step-by-step explanation:

5.32 x 10^-7= 5.32×10^(-5-2)= 5.32×10^-2×10^(-5)

=0.0532×10^-5

(0.0532×10^-5) (2.5 x 10^-5)

0.0532×2.5 × 10^-5

0.133×10^-5= 1.33×10^-1 ×10^-5

1.33×10^-6

0.02128 is the standard form of 5.32 x 10⁻⁷/2.5 x 10⁻⁵

What is Number system?

A number system is defined as a system of writing to express numbers.

The given fraction is 5.32 x 10⁻⁷/2.5 x 10⁻⁵

Simplify using exponent rule with same base

[tex]a^{m} a^{n} =a^{m+n}[/tex]

Now 5.32/2.5×10⁻⁷×10⁵

5.32/2.5×10⁻⁷⁺⁵

Calculate the sum or difference

5.32/2.5×10⁻²

Convert fraction into decimal

2.128×10⁻²

Express in standard form 0.02128

Hence, 0.02128 is the standard form of 5.32 x 10⁻⁷/2.5 x 10⁻⁵

To learn more on Number system click:

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A designer lamp costs £475
It is reduced by 30% in a sale
How much does the lamp now cost?

Answers

Answer:

$332.50 is the new discounted price

Step-by-step explanation:

30% of 475

30/100 x $475. 00

= $142.50

$475.00-$142.50=$332.50

and thats the answer

Quadratic in standard form: 6x^2 -5x-4

Answers

Answer:

Factor by grouping.

(2x+1)(3x−4)

Step-by-step explanation:

Evaluate x2 when x =5

Answers

(5)2 which is 5 times 2. The answer is 10.

Answer:

10

Step-by-step explanation:

If x=5 then

Plug in the x

(5)2 then multiply

(5)2=10

A store owner buys a sweater at $12 and sells it for $15. What was the
percentage of the price increase?

Answers

Answer:

it would be a 25% increase.

Step-by-step explanation:

15-12 / 12 * 100 =

3/12 * 100 = 25

Write a story that can be represented by the equation
y=x+ 1x

Answers

Jake started a new cell phone plan. He had a starting fee of 15 dollars. For every half hour of calls he gets 2 dollars added to his final bill. He calls his friends for 2 hrs for the first month. What is his bill for the first month?

Identify the slope (m) given the equation of the line.
y- 1 = -3(x + 2)
I need help please

Answers

hope this helps you out !!

Find the value
of 6y^2 - 24y - 51 when y=-2

​

Answers

Answer:

21

Step-by-step explanation:

6(y^2) - 24y -51 = 6 4 - 24y - 51

(6 4) - (24y) - 51 = 24 - -48 - 51

(24 - -48) - 51 = 72 - 51

72 - 51 = 21

Slope is -2 and (1,4) What is the equation of the line in point slope form?

Answers

y-4=-2(x-1) is the correct answer

Sandra is buying new carpet for the floors of her house. The cost depends on the area of the floors. Which is the dependent variable, and which is the independent variable?

A. The dependent variable is the cost, and the independent variable is the area of the floors.
B. The dependent variable is the number of walls in the house, and the independent variable is the cost.
C. The dependent variable is the cost, and the independent variable is the number of walls in the house.
D. The dependent variable is the area of the floors, and the independent variable is the cost.​

Answers

Answer:

A.The dependent variable is the cost, and the independent variable is the area of the floors.

Step-by-step explanation:

Because I had a quiz with the same question and got it right, and because the paragraph says "The cost depends on the area of the floors."

Answer:

A.

Step-by-step explanation:

"The cost depends on the area of the floors"

The independent variable is the cause and the dependent variable is the effect. Took the test.

Help I will give brainliest or however it’s spelled

Answers

Answer:

uuuummmmmm go to khanacademy but i think 140

Step-by-step explanation:

I need help this is extremely hard

Answers

Answer:

what variable do you want to find?

Step-by-step explanation:

what fraction in lowest terms represents the valur of c in the equation 3(4x -6) = -3(5 -2x)

Answers

Answer:

3(4x - 6) = - 3(5 - 2x)

12x - 18 = - 15 +6x

12x - 6x = - 15 +18

6x = 3

x = 1/2

i have to find the value of x please help me will give brainliest to correct answer​

Answers

Answer:

C. x = 5

Step-by-step explanation:

48 = 7x + 13

-13           -13

35 = 7x

5 = x

what is volume of a trapezoid prism?

Answers

Answer:

If the prism length is L, trapezoid base width B, trapezoid top width A, and trapezoid height H, then the volume of the prism is given by the four-variable formula: V(L, B, A, H) = LH(A + B)/2. In other words, multiply together the length, height, and average of A and B.

Step-by-step explanation:

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