Can someone help please, I put answers but I’m not sure if they’re right

Can Someone Help Please, I Put Answers But Im Not Sure If Theyre Right

Answers

Answer 1

Answer:

Step-by-step explanation:

x = y

x² + x² = 18²

2x² = 324

x² = 162

x = √162

x = y = 9√2


Related Questions

Which of the following numbers is between 5 and 10 on a number line? Select two that apply.

Answers

Answer:

it would be any number that is less that ten but greater than 5

SOMEONE HELP ITS DUE TODAY PLEASE!!!

Answers

i believe the answer would be c, because you leave the base alone and work on the exponents first. when dividing terms with exponents you subtract the exponents, so the equation would be something like -9-(-12) which is the same as -9+12 which equals 3, so the answer should be c, 3^3. hope this helps!

ABCD is a quadrilateral. Work out the length of CD. Give your answer to 3 significant figures

Answers

Check the picture below.

[tex]sin(35^o)=\cfrac{\stackrel{opposite}{12}}{\underset{hypotenuse}{BD}}\implies BD=\cfrac{12}{sin(35^o)} \\\\[-0.35em] ~\dotfill\\\\ \textit{Law of sines} \\\\ \cfrac{sin(\measuredangle A)}{a}=\cfrac{sin(\measuredangle B)}{b}=\cfrac{sin(\measuredangle C)}{c} \\\\[-0.35em] ~\dotfill[/tex]

[tex]\cfrac{sin(52^o)}{BD}=\cfrac{sin(102^o)}{CD}\implies CD=\cfrac{BD\cdot sin(102^o)}{sin(52^o)} \\\\\\ CD=\cfrac{\frac{12}{sin(35^o)}\cdot sin(102^o)}{sin(52^o)}\implies CD=\cfrac{12\cdot sin(102^o)}{sin(35^o)\cdot sin(52^o)}\implies CD\approx 26.0[/tex]

A submarine starts at surface of the
water. After 25 minutes, it is 2750 feet
below sea level. If the submarine is
traveling at a constant rate, what is the
submarine's elevation change per
minute?

Answers

Answer:

110

Step-by-step explanation:

2750ft/ 25mins = 110 ft per min. I hope this helps.

What is the lcm of 7 and 21​

Answers

Answer:

21

Step-by-step explanation:

7x3=21

21x1=21

EASY

Please help me i need to complete this by tomorrow

Answers

Answer:

Step-by-step explanation: Need to work out your scale factor which is 1.5.

8 * 1.5 = 12

CE = 12

12 * 9 = 108/2 = 59 that is the area of triangle ACE

8 * 6 = 48/2 = 24 that is the area of triangle BCD

ACE - BCD = ABDE

59 - 24 = 35cm^2

5 to the 4th power times 10 to the 4th power

Answers

Answer:

6250000

Step-by-step explanation:

Answer:6250000

Step-by-step explanation:

Plz help need this last question

Answers

Answer:

a = -√3/3

b = 2√3/3

Step-by-step explanation:

Finding the slope of the tangent at C  by finding the derivative:

x^2 + y^2 = 1

2x + 2y y' = 0

2y y' = -2x

y' = -2x / 2y = -x/y

So the slope = - 1/2 / √3/2

= -1/2 * 2/√3

= -1/√3

= -√3/3

Using the point-slope form of a straight line

y - y1 = m(x - x1)

y - √3/2 = -√3/3(x - 1/2)

y - √3/2 =  -√3/3 x +√3/6

y =  -√3/3 x + √3/6 +√3/2

y =  -√3/3 x + 4√3/6

y = -√3/3x +  2√3/3

what day is it
brainliest

Answers

Answer: Friday, October 23.

Answer:

Friday

Step-by-step explanation:

One ninth of the height of an iceberg was above the surface of the water. The iceberg
extended to a depth of 75.8 m below the surface. What was the height of the iceberg above surface? Express your answer to nearest tenth of a meter.

With solution please and thank you!

Answers

The answer is 75.8 c


Your grandfather is a coin collector. He has 50 coins of gold or silver separated into 7
bags. Gold coins are in packs of 6 and silver coins are in packs of 8. How many bags of
each coin does he have?
4 bags of gold and 3 bags of silver
2 bags of gold and 5 bags of silver
3 bags of gold and 4 bags of silver
5 bags of gold and 2 bags of silver

Answers

Answer:

c

Step-by-step explanation:

a = 48 coins   4 x 6 = 24    3 x 8 = 24     24 + 24 = 48

b = 52 coins   2 x 6 = 12     5 x 8 = 40     40 + 12 = 52

c = 50 coins   3 x 6 =18      4 x 8 = 32      32 + 18 = 50   correct

d = 46 coins   5 x 6 = 30    2 x 8 = 16       30 + 16 = 46

During the first year of operation, a company produced 8.4 x 10 9 reams of paper. During the second year, the company produced 5.6 times the number of reams of paper that it produced during the first year. Which expression represents the number of reams of paper the company produced during the second year?

Answers

Using proportions, it is found that the expression that represents the number of reams of paper the company produced during the second year is:

[tex]4.704 \times 10^{10}[/tex]

What is a proportion?

A proportion is a fraction of a total amount.

In the first year, the company produced [tex]8.4 \times 10^9[/tex] reams, and in the second year, 5.6 times that, that is, we multiply the amount by 5.6, hence:

[tex]5.6 \times 8.4 \times 10^9 = 47.04 \times 10^9 = 4.704 \times 10^{10}[/tex]

Which is the desired expression.

More can be learned about proportions at https://brainly.com/question/24372153

ILL GIVE BRAINLIEST!!
Select all of the expressions that are equivalent to
4x – 5 +6.

4x + (-5)+(6)
4x - 6+5
4x + 1
5x
5 + 6 - 4x

Answers

Answer:

4x + (-5) + (6)

4x + 1

hope that helps

If there are 13400 students at Rocky Valley College and 1/4
take speech, how many students take a speech at rocky valley college

Answers

Answer:

three thousand three hundred and fifty.3,350

Step-by-step explanation:

the question given was:1/4 take a speech, so how many?: one fourth, if you divide 13,400 by 4 its 3,350. that is one fourth  of 13,400. So, if you add 3,350 four times, it would be 13,400.

Hope this helped!<3

Find the surface area of the composite figure
Rectangle 4cm 4cm 12cm
Triangle 6cm

Answers

Answer: 256

Step-by-step explanation: The triangle needs to be multiplied 6x4 then 4 again for the sides of the triangle and divided by two. As for the rectangle you multiply the front which is 48 and the front is the back so 48+48 then the fours which are the bottom that then equals 16 do not use that for the top the top does not count because that is what the shapes are connected by then finally 48 for the top and bottom then add 48+48+48+48+16 to get your answer.

This figure has two intersecting lines and a ray. What is the value of x?
37°


108°


72°


19°

Answers

Answer:

The value of x is D. 37°

Step-by-step explanation:

No need for math on this one, the angle next to x is 71° and is significantly bigger, so the only answer could be 37°.

The value of x will be 37°.

What is Vertically opposite angles?

Vertically Opposite Angles are the angles opposite each other when two lines cross.

Given that;

This figure has two intersecting lines and a ray.

Now, By the definition of vertically opposite angles, we get;

x° + 71° = 108°

Then, Solve for x as;

x° + 71° = 108°

Subtract 71 both side;

x° + 71° - 71° = 108° - 71°

x° = 37°

Thus, The value of x will be 37°.

Learn more about the vertically opposite angles visit:

https://brainly.com/question/1673457

#SPJ2

Simplify the expression completely:

3(1+2(8-5))-(1+1)^2

Answers

Answer: 17

Step-by-step explanation:

PEMDAS or wutever your teacher taught u

3(1+2(8-5))-(1+1)^2

Solve from the most inner parenthesis

8 - 5 = 3

3 x 2 = 6

6 + 1 = 7

7 x 3 = 21

Next solve the other part

1+1 = 2

2^2 = 4

Now put these two together

21-4 = 17

Answer:

8

Step-by-step explanation:

Using PEMDAS to solve

Parentesis

Exponents

Multiplication

Division

Addition

Subtraction

:) hoped it helped

Question 7 Finally, select point D and move it around the circumference of circle A. Which type of polygon is formed by the line segments joining points A, B, and C?

Answers

Answer:

Regardless of where point D is located on the circle, a right triangle is formed between points A, B, and C. The right angle of the triangle is ∠ABC.

Step-by-step explanation:

PLATO

Answer:

Regardless of where point D is located on the circle, a right triangle is formed between points A, B, and C. The right angle of the triangle is ∠ABC.

Rodrigo needs a total of 3 pounds of vegetables for a stew. He already has 38 pound of onions and 13 pound of tomatoes. How many more pounds of vegetables does he need to buy?

Answers

Answer:

m needs 3 pounds of vegetables for a vegetable soup recipe. He already has 2/3 pound of carrots and 1/4 pound of celery.

Step-by-step explanation:

How did you decide whether to group this as a function, or not a function?
plz plz help

Answers

Answer:

This is a function because it passes the vertical line test

Step-by-step explanation:

What is the slope of a line that is parallel to y = 1x and goes through the point (1, 9).​

Answers

Both lines have the same slope of 1

The unknown line is y=x+8

Look at the photo for the graph

A sum of 300 pounds into the ratio of 1:2:2. How much is the smallest share?

Answers

Answer:

60

Step-by-step explanation:

Summing the ratios gives 1+2+2=5

300/5 = 60

(1 x 60) + (2 x 60) + (2 x 60)

(60) + (120) + (120) = 300

Hence the least share is 60

The other two shares are equal which is 120

Oil flows back and forth between a small and large tank. When oil is moving into the large tank, the flow rate is positive. When oil is moving into the small tank, the flow rate is negative. The large tank begins with 600 gallons of oil. The flow rate is recorded as –4 gallons per minute. After a period of 32 minutes, how much oil has been moved and to which tank?

Answers

Flow is given as, F = - 4 gallon per minute into small tank.

( Since, flow is negative )

Volume of oil in large tank, V = 600 gallons.

Now,

Volume of oil has been moved :

[tex]v = F \times t\\\\v = -4 \ gallons/min \times\ 32\ min\\\\ v = -128\ gallons[/tex]

Therefore, 128 gallons of oil has been moved to small tank.

Hence, this is the required solution.

Answer:

128 gallons, into the small tank.  I think its the second option for the last box, not 100 percent sure but i did the question so yea :D

Step-by-step explanation:

PLS HELP PLS PLS PLS

Answers

Answer:

Step-by-step explanation:

( x + 25 )° + ( 5x + 10 )° = ( 15x - 10 )°

6x + 35 = 15x - 10

9x = 45

x = 5

is (ab)c = a(cb). True or False

Answers

Answer:

true

Step-by-step explanation: You are multiplying all numbers (ab)*c is basically a*b*c and a(cb) is basically a*b*c. [gimme 5-star :)]

What is the volume of this cylinder?


Use ​ ≈ 3.14 and round your answer to the nearest hundredth.


32 yd

14 yd


cubic yards

Answers

Answer:

11253.76

Step-by-step explanation:

GIven Information;

Height = 14 yd

Diameter = 32 yd

Note;

Radius = d/2

Since Radius = d[Diameter] /2 then 32/2 = 16 yd

Solve;

Volume of cylinder formula;

= [tex]\pi r^2h[/tex]

Using = 3.14

[tex](3.14) (16^2)(14)[/tex]

[tex]\mathrm{Multiply\:the\:numbers:}\:3.14\cdot \:14=43.96[/tex]

[tex]=16^2\cdot \:43.96[/tex]

[tex]=256\cdot \:43.96[/tex]

[tex]\mathrm{Multiply\:the\:numbers:}\:43.96\cdot \:256=11253.76[/tex]

[tex]=11253.76[/tex]

[RevyBreeze]

Answer:

[tex]\huge\boxed{\sf 11253.76\ yd^3}[/tex]

Step-by-step explanation:

Height = h = 14 yd

Diameter = d = 32 yd

Radius = d/2 = 32/2 = 16 yd

Volume of cylinder:

[tex]= \pi r^2 h\\\\= (3.14)(16)^2(14)\\\\= (3.14)(256)(14)\\\\= 11253.76\ yd^3\\\\\rule[225]{225}{2}[/tex]

Mr. Baker worked 42 hours and earned $504.00. How much did he make per hour

Answers

Answer:

The answer is 12 remainder 6 but if it is a decimal form question it is 12.6

Answer:

the answer s 12$

Step-by-step explanation:

because if you do 504 divided by 42 you get 12 and if you do it backwards

42x12 you will get 504

Solve system of equations

3x+6y=3
X+2y=1

Answers

Answer:

has infinite solution

Step-by-step explanation:

(x,y)=(1-2a,a) where a is an element of any real number

The restaurant check is $54.50. Mary wants to leave a 20% tip for the server. What is the tip amount?


20 points, I'll give brainliest, SHOW YOUR WORK PLEASE :)

Answers

Answer:

$10.90

Step-by-step explanation:

Turn your 20% tip into a decimal (0.20) and multiply that by the overall check. $54.50 x 0.20 = $10.90

Punctele o, a, b, c sunt coliniare in aceasta ordine , iar segmentele oa, ab si bc au lungimile exprimate in cm , prin numere naturale pare consecutive . Se stie ca m este mijlocul segmentului ac si om = 11 cm . Calculati : a) lungimea segmentului oc b) distanta dintre n , mijlocul segmentului ob , si punctul m

Answers

Answer:

???

Step-by-step explanation:

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