Mathematics College

I need help with this I roll mark you if right

Answers

Answer 1

the answer is a. 45+2x=180

Answer 2

Answer:

That would be A my good Sir (or ma'am).

Step-by-step explanation:

A triangle has a total of 180 degrees in it , however we already know one side is 45, so we can add that to the solution, we also know that 2 sides are the exact same, so therefore, we will be multiplying our unknown value ( x = 67.5 btw, not so unknown) by 2, and you will always get 180 degrees, thats how you check your answer, also if you sbutract 45 from 180 and divide the product by 2 you will get the value of x ( which is 67.5).

Thats It Helps It Helps!

Related Questions

In the summer reading program, a participant earns 50 stars for reading 10 books. The library tracks the number of stars (y, vertical
axis) and books (x, horizontal axis) on a graph. Which statements are correct?
A)
Point (5, 1) represents the unit rate.
B)
Point (1,5) represents the unit rate.
9
Point (0, 50) represents the unit rate.
D)
Point (100, 20) represents reading 20 books.
E)
Point (20, 100) represents reading 20 books

Answers

Answer:b and e

Step-by-step explanation:

Answer:

B and E

Step-by-step explanation:

This is because (1,5) represents the unit rate whilst, (20,100) represents reading 20 books.

MAKE SURE TO DRINK WATER AND A BREAK!!!

THINGS WILL GET BETTER <3

A dance team decided to sell fruit snacks to raise money for an upcoming competition. The dancers charged $3.00 for each fruit snack they sold. In 4 days, they sold 24 packs of fruit snacks. How much money could the team earn for seven days at that same rate?

Answers

Answer:

126 dollars

Step-by-step explanation:

(i'm gonna be doing my work here, dont mind me LOL)

okay, so they sold 24 packs in 4 days. divide 24 by 4 and you get 6. multiply 6 by 3 and you get 18.

now, multiply 18 by seven and you get 126.

bam!! the dance team could earn 126$ in 7 days ^__^ hope you get an A!

Answer:

$126

Step-by-step explanation:

Let x = packs sold in 7 days

Set up a proportion. days/days = packs/packs

4/7 = 24/x

4x = 24(7) = 42 packs sold in 7 days

At $3/pack, the amount earned in 7 days = 3(42) = $126

x-10= 30 Which value of x makes the equation true

Answers

I’m sure x equals 40

The ratio of length to width on a rectangle is
11:3. The perimeter of the figure is 308. what is the
width of the rectangle

Answers

Answer:

[tex]Let~the~length~of~rectangle~be~'l'~and~its~width~be~'b'.\\According ~to ~question,\\l:b=11:3\\or, \frac{l}{b} =\frac{11}{3} \\or, l = \frac{11b}{3}\\Also,\\Perimeter~of~the~rectangle=308\\or, 2(l+b)=308\\or, l+b=154\\or, \frac{11 b}{3}+b =154 \\or, \frac{11b+3b}{3} =154\\or, 14b = 154(3)\\or, b=33 units\\So, ~the~width~of~rectangle~is~33units.[/tex]

Alternative method:

[tex]Let~the~length~and~width~of~the~rectangle~be~11x~and~3x.\\Given,\\Perimeter~of~the~rectangle = 308\\or, 2(11x+3x)=308\\or, 14x = 154\\or, x = 11\\Now,\\Width~of~the~rectangle,3x = 3(11)=33 units\\So,~the~width~of~the~rectangle~is~33units.[/tex]

What is the area of the trapezoid?

Answers

78. you can find the area of the two ends which are triangles by subtracting 11 from 15. Then divide that four by two since both ends are included. Multiply 2 by 6 to get half the area of one triangle. But since there are two just leave that number as is. Finally multiply 11 by 6 to get the rest of the area.

Answer:

A=78ft

Step-by-step explanation:

The area of a trapezoid is A=(a+b)/2 *h

a=long base

b=short base

h=height

For your trapezoid, it will look like this:

a=15ft

b=11ft

h=6ft

Let's add those into the equation:

A=(15+11)/2 *6

Okay, let's solve it! Using PEMDAS, we know parenthesis are first.

A=26/2 *6

Now we divide!

A=13*6

Multiply! And don't forget to add your unit.

A=78ft

F(x)=8x+10 g(x)=6x-4 what is f(4)-g(3)

Answers

Answer:

f(4) - g(3) = 28

Step-by-step explanation:

f(x) = 8x + 10

f(4) = 8(4) + 10

f(4) = 32 + 10

f(4) = 42

g(x) = 6x - 4

g(3) = 6(3) - 4

g(3) = 18 - 4

g(3) = 14

f(4) - g(3)

= 42 - 14

= 28

Find the exact value of tan e.
A. 15
3
B. 3/14
14
C. 35
5
D. 2/14

Answers

b!!!!!!! it’s the only one that could be

Answer:

33.333333% (the 3 goes on forever)

pH = -log10 (C).
What is the value of c when the acidity of the liquid solution is 5 pH units?
OA. – 510
B. 5-10
OC. – 105
D. 10-5

Answers

B, 5-10 is right I believe

HELP ME PLS I NEED ANSWERS

Answers

7: d
8:d
9:c
10:c

Quadrant 1(I): both numbers are positive
Quadrant 2(II); negative number first then positive number last
Quadrant 3(III): both numbers are negative
Quadrant 4(IV): Positive number first then negative number last

Defective Merchandise Suppose that 8% of a certain batch of calculators have a defective case, and that 11 % have defective batteries. Also, 3% have both a defective case and defective batteries. A calculator is selected from the batch at random. Find the probability that the calculator has a good case and good batteries.

Answers

Answer:

0.84 = 84% probability that the calculator has a good case and good batteries.

Step-by-step explanation:

We have these following percentages:

8% of a certain batch of calculators have a defective case.

11 % have defective batteries.

3% have both a defective case and defective batteries.

Using Venn Diagrams:

Event A: Defective Case

Event B: Defecitve Battery

So the probabilities are: [tex]P(A) = 0.08, P(B) = 0.11, P(A \cap B) = 0.03[/tex]

Probability of at least one problem:

[tex]P(A \cup B) = P(A) + P(B) - P(A \cap B) = 0.08 + 0.11 - 0.03 = 0.16[/tex]

Find the probability that the calculator has a good case and good batteries.

No problems, so

[tex]p = 1 - P(A \cup B) = 1 - 0.16 = 0.84[/tex]

0.84 = 84% probability that the calculator has a good case and good batteries.

The probability that the calculator has a good case and good batteries is 0.84 or 84%

Calculation of the probability:

Since

8% of a certain batch of calculators have a defective case.

11 % have defective batteries.

3% have both a defective case and defective batteries.

Answer:

40 dollars

Step-by-step explanation:

25% of 16 minutes is 4 mins. 16+4=20 mins.

so 20*2=40 dollars

El doble de la altura de un fresno en 3m mas alto que un pino de 5 m ¿Cuanto mide el fresno?

Answers

cuatro es la respuesta....espero eso ayude

Solve each system of equations using any method.
y = 5x +7
y = 4x - 3

Answers

x = -10 and y = -43 so the correct answer would be (-10,-43)

Answer:

x= -10

y= -43

Step-by-step explanation:

since both of your equations equals y just plug it into each other and than make the equation: 5x+7=4x-3

and than you can just start with the variables OR numbers and then simplify

5x+7=4x-3

5x+10=4x

10= -x

x= -10

so -10 for x

plug it in to one of your 2 equations to get y

5(-10)+7= y

-50+7=y

y= -43

Given m||n, find the value of x. (X+6)^ (x+10)^

Answers

Step-by-step explanation:

therefore x+6=0

x = -6 hope this helps and you understand it.

Determine whether the ratios 1:1 and 6:6 are equivalent

Answers

Answer:

its is because if you divide 6:6 by 6 it equals 1:1

Step-by-step explanation:

plz brainliest i need it to rank up

Answer:

They are equivalent

Step-by-step explanation:

1:1 is the same as 6:6 because 6:6 is technically 1:1 when you divide both sides by 6.

Measurement of angles

Answers

Answer:

Measuring an angle using a protractor in anticlockwise direction:

This is measurement in anticlockwise direction. Thus, we will use the inner scale to measure the angle.

The centre of the protractor is placed on the vertex B of the angle ABC. The base line of the protractor should coincide...

Read the markings where the arm BC overlaps the markings on the protractor.

Step-by-step explanation: Hope this helps :)

A pair of jeans is marked down at 25% off the original price. The original price of
the jeans was $68.50. What is the price of the jeans before sales tax?

Answers

Answer:

$51.38

Step-by-step explanation:

1 - .25 = .75

you're paying 75% of the price

68.50 • .75 = 51.375 ≈ $51.38

Emma ran 4 1/2 miles. For 3/4 of her run,she ran uphill. How many miles did she run uphill?

A. 3 3/8 miles

B. 3 1/2 miles

C. 3 3/4 miles

D. 4 1/4 miles

Answers

Answer:

Step-by-step explanation:

The first term of a sequence is 3 and the common ratio is 3. The sequence is:
a. 3, 6, 9, 12,...
b 3, 9, 27, 81,...
c 3, 9, 27, 36,...
d None of the choices are correct.

Answers

Answer:

Step-by-step explanation:

does how many mean to add or subtract?

Answers

what do
you mean, is there a math problem.

Carlos spends 17 hour in a two-week period practicing the piano how many hours does he practice in 5 weeks

Answers

Answer:

Step-by-step explanation:

Answer:

42.5 hours

Step-by-step explanation:

17 hours/2 weeks

x hours/5 weeks

17*5=2x

42.5=x

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