Mathematics College

Please help me I will give brainliest. You need to use a^2+ b^2=c^2 format

Answers

Answer 1

Answer:

x = 9

Step-by-step explanation:

1) a²+12²=15²

2) a²+144=225

3) a²=81

4)[tex]\sqrt{81\\}[/tex]=9

Related Questions

Mrs. Liang said that 36%of the students in her math class earned a grade of B or higher. Which ratio represents the portion of students receiving a grade of B or higher to the total number of students in the class?

Answers

Answer:

36:45

Step-by-step explanation:

Evaluate 2^9 (2 to the 9th power)

Answers

Answer:

512

Step-by-step explanation:

2^9 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 = 512

PLZZZ ANSWER!! Answers for points will be reported.

Triangle KLM has KL = 28, KM = 28, and LM = 21. What is the area of the triangle?
The area of AKLM is about
(Simplify your answer. Round to one decimal place as needed.)

Answers

Answer:

272.6

Step-by-step explanation:

This is an isosceles triangle with base of 21 and sides of 28.

Area formula

A = 1/2bh

Find height:

h = [tex]\sqrt{28^2 - (21/2)^2} = \sqrt{673.75} = 25.96[/tex]

Area:

A = 1/2(25.96)(21) = 272.6 (rounded)

Uniform Distribution Notation Format Which of the following is the correct notation used for a uniform probability distribution where the smallest value of the random variable X is 9, and the largest value of the random variable X is 28. X - B{9, 28) X - U(28.9) You Answered U - X(9, 28) Correct Answer X - U(9,28)

Answers

The answer if in that link that I can’t open

Candice buys 2/8 of a container of roasted peanuts. Alan buys 2/3 of a container. Both containers are the same size. Candice says 2/8 is between 1/2 and 1, so she buys more peanuts than Alan. Is Candice correct? Explain.

Answers

Since my name is in this question, I'll answer it :)

Answer:

Yes, she's right.

Step-by-step explanation:

2/8 is simplified to 1/4. Between 1 and 1/2, it is 1/4. So yes, I (Candice) was right. :)

pls help will mark brainliest

Answers

Answer:

80in²

Step-by-step explanation:

Hey There!

So the first step of this problem is to find the width of the scale drawing

To do so we need to find the scale factor

To find the scale factor we divide the length of the room by the length of the scale factor

32/8=4

so the scale factor is 4

now to find the width

40/4=10

so the width of the scale drawing is 10 in

now we can find the area given the length and the width

10x8=80in²

so we can conclude that the area of the scale drawing is 80in²

Can someone find the surface area of the composite shape and show work! I’ll give 30pts! Thanks!

Answers

Answer:

382 cm²

Step-by-step explanation:

The shape can be decomposed into two rectangular prism or cuboids

✔️Dimension of prism 1 (smaller prism):

L = 10 cm

W = 3 cm

H = 7 - 4 = 3 cm

Surface area of prism 1 = 2(LW + LH + WH)

= 2(10*3 + 10*3 + 3*3)

= 2(69)

Surface area of prism 1 = 138 cm²

✔️Dimension of prism 2 (larger prism):

L = 10 cm

W = 8 cm

H = 4 cm

Surface area of prism = 2(LW + LH + WH)

= 2(10*8 + 10*4 + 8*4)

= 2(152)

Surface area of prism 2 = 304 cm²

✅Surface Area of the composite shape = (Surface area of prism 1 + surface area of prism 2) - (2 × area of the base of prism 1)

= (138 + 304) - (2 × L × W)

= 442 - (2 × 10 × 3)

= 442 - 60

= 382 cm²

A manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 419 gram setting. It is believed that the machine is underfilling the bags. A 15 bag sample had a mean of 409 grams with a standard deviation of 22. A level of significance of 0.05 will be used. Assume the population distribution is approximately normal. Determine the decision rule for rejecting the null hypothesis. Round your answer to three decimal places.

Answers

Answer:

We reject the null hypothesis, and accept the alternative hypothesis.

So, it means that the machine is under filling the bags

Step-by-step explanation:

Given

Null Hypothesis

[tex]H_0:\mu = 419[/tex] --- works correctly at 419g

Alternate Hypothesis

[tex]H_0:\mu < 419[/tex] --- under fills the bag

[tex]n =15[/tex] --- the sample

[tex]\bar x = 409[/tex] --- the mean

[tex]\sigma = 22[/tex] --- the standard deviation

[tex]\alpha = 0.05[/tex] --- the significance level

Required

What is the decision rule

Since n is less than 30, we make use of t test

[tex]t = \frac{\bar x - \mu}{\sigma/\sqrt n}[/tex]

[tex]t = \frac{409 - 419}{22/\sqrt{15}}[/tex]

[tex]t = \frac{-10}{22/ 3.87}[/tex]

[tex]t = \frac{-10}{5.58}[/tex]

[tex]t = -1.792[/tex]

Calculate df

[tex]df = n-1[/tex]

[tex]df = 15-1[/tex]

[tex]df = 14[/tex]

Calculate the p value from the Student's t-distribution at df = 14 and [tex]t = -1.792[/tex]

[tex]p =0.047[/tex]

Given that: [tex]\alpha = 0.05[/tex]

Since [tex]p < \alpha[/tex]

So, it means that the machine is under filling the bags

i need help asap!!!!

Answers

Answer:

760 inches squared

Step-by-step explanation:

surface area -

4(14 x 10) + 2( 10 x 10) = 560+200=760

i need help! i’m not sure what’s going on

Answers

Answer:one of them is m=3/1 y=3x+10

Step-by-step explanation:i

A cube has a edge of 8 cm it is cur into two equal parts calculate the ratio of total surface area

Answers

Answer:

[tex]Ratio = 3: 2[/tex]

Step-by-step explanation:

Given

Shape: Cube

[tex]L = 8cm[/tex]

The surface area is calculated as:

[tex]Area = 6*L^2[/tex]

[tex]A_1 = 6*8^2[/tex]

[tex]A_1 = 384[/tex]

When it is cut by half; the length is affected; so, it forms a cuboid of the following dimension:

[tex]L = \frac{8}{2} = 4[/tex] --- Length

[tex]W = 8cm[/tex] --- Width

[tex]H = 8cm[/tex] --- Height

The surface area is:

[tex]Area = 2 *(L*W + H * L + W * H)[/tex]

[tex]A_2 = 2 *(4*8 + 8 *4 + 8 * 8)[/tex]

[tex]A_2 = 2 *128[/tex]

[tex]A_2 = 256[/tex]

So, the ratio of surface area is:

[tex]Ratio = A_1 : A_2[/tex]

[tex]Ratio = 384 : 256[/tex]

Divide by 128

[tex]Ratio = 384/128 : 256/128[/tex]

[tex]Ratio = 3: 2[/tex]

I need help with this !

Answers

The length of the third side is 13 because it’s a “5-12-13” triangle it’s a formula

Answer: Try using calculatorsoup dot com Significant Figures auto Don't put m in the answer there's No Unit(s)

a = 12 m

b = 5 m

c = 13 m

P = 30 m

s = 15 m

K = 30 m2

ha = 5 m

hb = 12 m

hc = 4.6153846153846 m

Step-by-step explanation:

Which value for x makes the sentence true? 1/35 + x = 1/7
A. 6/35
B. 1/28
C. 4/35
D. 1/21
WHATS THE ANSWER :(

Answers

x= 4/35 (c)

if we take 1/7 and make the denominator the same as 1/35, it would be 1/7x5/5 and it’d make it 5/35.

1/35+x=5/35

x=4/35

Round 7 3/8 to the nearest whole number?!?

Answers

Answer:

Step-by-step explanation:

Everything including 1/2 and above rounds up to the next whole number.

3/8 < 4/8

7 and 3/8 rounds to 7

multiply 2.345 x 0.023
show your work please

Answers

Answer:

2.345×0.023

2.345..........3 decimal point

0.023........3 decimal point

2345

× 23 1. first we change it whole number for multiply.

···················· 2.count the decimal point.here 6 decimal points are there.

+ 7 0 3 5 3.we got the answer 53935.here only 5 digits are there.

4 6 9 0 0 4.now we add one zero backside 053935

····························5 . final answer is 0.053935

5 3 9 3 5

···························

answer is =0.053935

Step-by-step explanation:

HURRY PLEASE I WILL GIVE BRAINLIEST

Answers

Answer:

About 40% of students own a cat

Step-by-step explanation:

Kate ran 6 miles. How far did she run in kilometers?

Answers

Answer:

9.65606

Step-by-step explanation:

Levi bought 5 pairs of jeans for $127.63. How much would he need to pay for 9 pairs of jeans?

Answers

Answer:

$229.73

Step-by-step explanation:

5 Pair of jeans = 127.63

divide by 5 to get 1 pair of jeans.

1 pair of jeans = 25. 526 rounded 25.53

times 9 to get to 9 pair of jeans.

9 pair of jeans = 229. 734 rounded 229.73

Given a linear equation in the form y = ax, if a > 0 then the greater the coefficient a
a) the greater the slope of the equation
b) the smaller the slope of the equation
WILL MARK BRAINLIEST
c) the longer the line is
d) the shorter the line is

Answers

It’s b................................. .....

Mindy wants to cover a rectangular section of her back yard with gravel. The length of the section is 7 meters and the width of the section is 6.5 meters. A garden in the rectangular section of her back yard with an area of 25 square meters will not be covered with gravel. How much area will Mindy need to consider when purchasing the gravel?

Answers

Answer:

20.5 m^2

Step-by-step explanation:

entire back yard area = 7 x 6.5 = 45.5 m^2

45.5 - 25 = 20.5 m^2

CORRECT ANSWER GETS BRAINLY PLEASE!!! For g(x)=x^2-x, find g(x) when x=-5
Must Show Work
g(-5)=?

Answers

We will plug in -5 for x in the original equation
g(-5) = (-5)^2 - (-5)
we will first square -5
g(-5) = 25 + 5
g(-5) = 30

Milly has a equal number of 20p coins and 50p coins . The value of her 20p coins is £2.80 . Work out the total value of her 20p and 50p coins

Answers

Answer:

£9.80

Step-by-step explanation:

The computation of the total value is shown below:

Given that

The value of 20p coins is £2.80

So the value of 50p would be

= £2.80 × 50 ÷ 20

= £7

Now the total value is

= £2.80 + £7

= £9.80

29. Write an equation of the line that passes through (1, -3) and has slope 2.

Welp plz

Answers

Answer:

y = 2x - 5

Step-by-step explanation:

use the formula y - y1 = m (x - x1)

The gardening club set a goal of raising at least $500
in flower sales. So far it has raised $415. How many
more dollars does the gardening club need to raise
to reach its goal?

Answers

Answer:

Nxnjsjdndkknnndnnnenndnnd

Answer:

Step-by-step explanation:

If you subtract 415 from 500 you get 85.

Therefore the gardening club needs 85$

If you could mark brailiest that would be great, I'm trying to rank up.

Hope I helped:)

HAve a great day:)

3. Which of the following is a polynomial with roots 4,6, and - 7

Answers

Answer: P(x)= x³ - 3 x² - 46 x +168

Step-by-step explanation:

(4,6, -7)

hence the polynomial will be equal to

P(x) = (x-4) (x-6) (x+7)

P(x) = (x-4) (x²+7 x -6 x -42)

P(x) = (x-4) (x²+x -42)

P(x) = x³ + x²-42 x -4 x² -4 x +168

P(x) = x³ - 3 x² - 46 x +168

hence, the required polynomial is P(x) = x³ - 3 x² - 46 x +168

Have a awesome day✨

The graphs below have the same shape. What is the equation of the red
graph?

Answers

Where are the graphs??? How’re we supposed to send you the answers?

A car manufacturer provided information about two different car models
Car A
Car B
у
Gas
(gallons)
Distance
(miles)
0
0
Distance (miles)
350
300
250
200
150
100
50
60
vlund
100
140
X
0
1 2 3 4 5 6 7 8 9 10 11
Gas (gallons)
10
200
The graph and table each show a proportional relationship between the number of miles traveled and the advertised number of gallons of gas used for
the two car models, A and B, respectively
What is the unit rate of Car A?
miles per gallon
What is the unit rate of Car B?
miles per gallon

Answers

Answer:

Step-by-step explanation:use Slader if u have a textbook

[tex]\int\limits^1_0 {e^t^x} \, dx[/tex]

Answers

Answer:

all it says is the link

Step-by-step explanation:

A rectangular painting has an area of 9.52 feet. What are three different ways in which this can happen. Give three unique length and width not using one.

Answers

Answer:

2 x 2 x 2.38

2 x 2.1 x 2.26

6 x .31 x 5.118

Help me please y’all please help!

Answers

9514 1404 393

Answer:

Step-by-step explanation:

Maybe you want the area of the trapezoid. That is given by the formula ...

A = (1/2)(b1 +b2)h

where b1 and b2 are the base lengths, and h is the height.

Here, the top base is marked 16 cm, and the bottom base is shown as 4 cm longer, so is 20 cm.

A = (1/2)(16 cm +20 cm)(10 cm) = 180 cm²

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