Mathematics High School

PLEASE HELP OUT
(45 is incorrect I know that already)​

PLEASE HELP OUT(45 Is Incorrect I Know That Already)

Answers

Answer 1

Answer:

∠ B = 60°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

(10x - 45)° is an exterior angle of the triangle , then

10x - 45 = 3x + 4x = 7x ( subtract 7x from both sides )

3x - 45 = 0 ( add 45 to both sides )

3x = 45 ( divide both sides by 3 )

x = 15

Then

∠ B = 4x = 4 × 15 = 60°

Answer 2

Answer:

∡B=60°

Step-by-step explanation:

x = 15

so 4x = 60

7x + 180 - (10x-45) = 180

-3x + 225 = 180

-3x = -45

x = 15

Related Questions

ABCD is a cyclic quadrilateral (inscribed quadrilateral). Find the value of x and the measures of all the angles.

Answers

Answer:

Step-by-step explanation:

The "trick" to this problem is knowing that opposite sides of the box add up to 180°

Now that you know that maybe you can solve this?

180= 7x+2 + 6x-4

180 = 13x -2

182 = 13x

14 = x

find y now to find all the angles

180 = 2y + 4 +4y - 4

180 = 6y

30 = y

now solve the x expressions and the y expressions

7x+2

7(14)+2

98 + 2

D= 100°

6x-4

6(14)-4

84-4

B = 80°

2y + 4

2(30) + 4

60 + 4

A = 64°

4y-4

4(30)-4

120-4

C = 116°

The athletic department manager purchased a total of 52 footballs and soccer balls. Each football cost $23.53, and each soccer ball cost $19.86. If the manager spent a total of $1,120.80, how many soccer balls did the manager purchase?

Answers

Answer:

The manager purchased 28 soccer balls.

Step-by-step explanation:

Since the information states that the athletic department manager purchased a total of 52 balls, you can say that the result of adding up the number of footballs and soccer balls purchased is 52, which can be expressed as:

x+y=52, where:

x is the number of footballs purchased

y is the number of soccer balls purchased

Also, as the statement indicates the price of each type of ball and the total cost, you can say that adding up the results of multiplying the price of each ball for the quantity purchased is equal to the total amount spent, which is:

23.53x+19.86y=1,120.80

Now, you have 2 equations:

x+y=52 (1)

23.53x+19.86y=1,120.80 (2)

To be able to find the value of x and y, first you can isolate x in (1):

x=52-y (3)

Then, you can replace (3) in (2) and solve for y:

23.53(52-y)+19.86y=1,120.80

1,223.56-23.53y+19.86y=1,120.80

1,223.56-1,120.80=23.53y-19.86y

102.76=3.67y

y=102.76/3.67

y=28

Finally, you can replace the value of y in (3) to find the value of x:

x=52-28

y=24

According to this, the answer is that the manager purchased 28 soccer balls.

Skylar does 3/10 of the work. Riley 2/5 does of the work. How much more does this person do?

Answers

Answer:

1/10

Step-by-step explanation:

we already know skler has done 3/10s we make Rileys into 4/10 4/10 minus 3/10 is 1/10

0.4-0.3=0.1

The person does about 1/10, 0.1, and 10% more.

Briainliest Simplify 15√90/√125
options
9√2
18√5
18√2/5
27√2/5

Answers

Answer:

9√2

Step-by-step explanation:

simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.

Exact form:9√2

Decimal form: 12.72792206

Sally is planning the school picnic and needs to decide what food vendor to
use. She asks 800 students whether they would rather have a taco truck or a
fruit smoothie cart. The results of the survey are shown in the table.
Naco truck Fruit smoothies Total
Eighth-graders 350 150
500
Ninth-graders 100
200
300
Total
450
350
800
What is the relative frequency of eighth-graders who want fruit smoothies?
A. 0.19
B. 0.30
O
C. 0.15
O D. 0.44

Answers

Your answer is 0.19.

I hope this helps you get a good grade on your test!!

The Morris family just bought 8 crates of eggs, and each crate had 12 eggs. The family already had 9 eggs in their refrigerator. How many eggs do they have now?
They now have 30 eggs
I need a bf

Answers

Answer:

105 eggs

Step-by-step explanation:

Total eggs they bought = ( 8×12) = 96 eggs

They already had 9 eggs so adding 96 and 9 gives us 105 eggs in total

like 105 eggs........

Which expression gives the solutions of -5 + 2x^2 = -6x?

Answers

Answer:

the correct answer is: D

The radius of a circle is 4 yards. What is the circle's area? r=4 yd Use 3.14 for ​.

Answers

A = 50.24

To find the area of a circle we can use the following equation

[tex]A = r^2\pi \\A = 4^2\pi \\A = 16\pi \\\\A = 16*3.14\\A = 16*3.14\\\\A = 50.24[/tex]

do this and thank you and have a good day

Answers

here since you have the area of a face you can find the length of the sides as in A you already know that the left and right sides of the face are 5cm and since area is length x width so 60/5 is 12 for the top and bottom sides.
now its easy to calculate volume as its length x width x height which will be 5x5x12 which is 300.

you can also just do 60x5 which will give the same answer i just wanted to explain the process.

same goes for B but with different numbers.

hope this helped
thank you so much i really need points to get answers

helppp please
(Will give brainliest)

Answers

Answer:

5 and 5/8 cups

Step-by-step explanation:

3x 1 7/8

3 21/8

5 5/8

Answer:

5 5/8

Step-by-step explanation:

I took a screenshot of the steps

please answer correctly, will give brainly to best answer, please do explain your answer
Evaluate:

2³ + 4(2 + x) for x = 10

24
26
54
56

Answers

Answer: 26

2³ + 4(2 + x) for x = 10

- first do 4(2 + x) which is

8+4x

- Evaluate 2 cubed

You get 2 times 2 times 2.

That would get 8

Our expression is 8 + 8+x

x = 10

Substitute the values.

It is Now eight plus 8 plus ten

So when you Calculate eight plus 8 plus 10

You will get 26

Answer:

D. 56

Step-by-step explanation:

2³ + 4(2 + x),

When x = 10, the value of the given expression is:

8 + 4(2 + 10) = 8 + 4*12 = 8 + 48 = 56

Correct choice is D

PLEASE HELP
I don’t understand
DONT USE ME FOR POINTS

Answers

Answer:

d = 364 feet

Step-by-step explanation:

Given that,

The pressure at depth d is given by :

[tex]P=13+\dfrac{8}{13}d[/tex]

Pressure under water is found to be 237 pounds per square foot

Now, put P = 237 to find d. So,

[tex]237=13+\dfrac{8}{13}d\\\\237-13=13+\dfrac{8}{13}d-13\\\\224=\dfrac{8}{13}d\\\\d=\dfrac{224\times 13}{8}\\\\d=364\ ft[/tex]

So, the depth is equal to 364 feet.

6th grade advanced / 7th grade
5 x (-2w - 4) = (__)

Answers

-10w - 20

5 ( -2w - 4 ) =
5(-2w) - 5(4) =
-10w - 20

A cookie recipe calls or 3/4?cups of chocolate chips. You only want to make 2/3 as many cookies as the recipe makes. How many cups of chocolate chips do you need ?

Answers

Less than 1 cup of chocolate chips
You need half a cup of chocolate chips, that is the answer.

What is the axis of symmetry for y=8x2+2x−6?

Answers

Answer:

y=2( x - [tex]2^{2}[/tex])-2

Step-by-step explanation:

Use the vertex form,  y=a(x - [tex]h^{2}[/tex])+k to determine the values of A,H,K

a=2

h=2

k=   -2

Since the value of a is positive the parabola opens up.

Find the vertex (h,k)

(2, -2)

Find p the distance from the vertex to the focus.

[tex]\frac{1}{8}[/tex]

Find the focus

(2,  -[tex]\frac{15}{8}[/tex])

Find the axis of symmetry by finding the line that passes through the vertex and the focus.

x=2

 

Help please !!!!!!!!

Answers

Answer:

ITS B

Step-by-step explanation:

I GOT IT ALL RIGHT

factor completely;
3x^2+4x-7

Answers

Answer:

(3x-7) (x+1)

Step-by-step explanation:

3x^2 - 4x - 7

First split the middle term

3x^2 + 3x - 7x - 7

Make into two separate expressions

(3x^2 + 3x) (-7x-7)

Take out what you can

3x (x+1) -7 (x+1)

Now you have your answers

(3x-7) (x+1)

pls help!________________

Answers

Answer:

I think your right but I'm not sure yet

Answer:

SCI or ICS

Step-by-step explanation:

The largest line will have the largest angle opposite to it, so angle SCI is the correct choice.

Use the distributive property to write an equivalent expression.
10(5v+3)

Answers

Answer:

50v + 30

Step-by-step explanation:

you just multiply what's outside the bracket so 10 with the inner numbers and variables

Answer:

50v + 30

Step-by-step explanation:

big brain

Write the fraction 24/40 in its simplest form.

Answers

Answer:

3/5

Step-by-step explanation:

The numerator, 24, and the denominator, 40, both have a GCF(greatest common factor) of 8. By dividing both the numerator, 24, and the denominator, 40, by 8 you would be simplify the fraction. In which you'd get a numerator of 3 and a denominator of 5, which is 3/5 and the simplest form of 24/40.

The simplified form of 24/40 is 3/5.

To simplify the fraction 24/40, we need to find the greatest common factor (GCF) of the numerator (24) and the denominator (40) and then divide both the numerator and denominator by that GCF.

The factors of 24 are: 1, 2, 3, 4, 6, 8, 12, and 24.

The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, and 40.

Looking at the lists of factors, we can see that the greatest common factor of 24 and 40 is 8.

To simplify the fraction, we divide both the numerator and denominator by 8:

24 ÷ 8 = 3

40 ÷ 8 = 5

Therefore, the simplified form of 24/40 is 3/5.

The simplified fraction represents the same proportion as the original fraction but is written in its simplest and most reduced form. In this case, 24/40 can be simplified to 3/5 by dividing both the numerator and denominator by their greatest common factor, which is 8.

To learn more about fractions;

https://brainly.com/question/10354322

#SPJ6

Which answer choice correctly complete the sentence? Asking the "Did you Check" questions is an important step in the Problem Solving Plan because you can A. determine if your answers are reasonable. B. organize your thoughts. C. understand the problem better. D. define your strategy easier.

Answers

Answer:

A

Step-by-step explanation:

Checking something is a way to see if your answer is reasonable.

Pls help this is due today

Answers

Answer:

Option C sounds correct to me.

Step-by-step explanation:

Have a nice day!

and can I maybe have brainliest?

the exact volume is ___ pi cm^3

Answers

Answer: 54π

Step-by-step explanation: volume = π · r^2 · h

Which equation models a proportional relationship with the unit rate of 3?

Y = 3

Y = 3x

Y = x+3

Y = 3x + 3

Answers

y=3x please mark as brainliest:)

Which monomial represents the number of square units in the area of a circle whose radius is 4x^3 units?

O 8πx^5
O 16πx^9
O 8πx^6
O 16πx^6​

Answers

Answer:

8x^6 esa es la respuesta correcta...

enter the value for x that makes the equation 4x-2+3x-7 true

​

Answers

Answer:

I think the answer is

[tex]x = \frac{9}{7} [/tex]

Step-by-step explanation:

Reason :

[tex]4x - 2 + 3x - 7 = 0 \\ collect \: like \: terms \\ 4x + 3x - 7 - 2 = 0 \\ 7x - 9 = 0 \\ 7x = 9 \\ x = \frac{9}{7} [/tex]

Therefore

[tex]x = \frac{9}{7} [/tex]

PLS HELP ME THIS IS Probability (Single event) PLS HELP ME

Answers

Answer:

Hi! The answer to your question is D. 7/6

Step-by-step explanation:

☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆

☁Brainliest is greatly appreciated!☁

Hope this helps!!

- Brooklynn Deka

Express the function graphed on the axes below as a piecewise function

Answers

Answer:y = 2/3x +6  for x< -3

Step-by-step explanation:

please helppp , im desperate !!

Answers

Answer:

-8

Step-by-step explanation:

Find the value of x and y that will make each quadrilateral a parallelogram.​

Answers

Step-by-step explanation:

2x+5=3x-12

or, 2x-3x=5-12

or, -x= -7

i.e X=7

again

y+4=3x+2

or, y+4=3*7+2

or, y+4=21+2

or, y+4=23

or, y =23-4

i.e y = 19

hence, the value of X is 7 and y is 19

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