Mathematics High School

need help ASAP mid term .
- 60 points

Need Help ASAP Mid Term . - 60 Points

Answers

Answer 1

the metal bar/random line is almost the same size as the other two sides of the triangle. if one side is 32ft, then the opposite side is 32ft also. the bottom is 100ft, so we could eliminate C. because it couldnt be that number. now the bottom triangle, one side is 40ft so the other side has to be 40ft as well. its asking about the metal bar.

its either:

A. 53.2ft     or

B. 44.4

because the line is almost the same size as 32ft. its almost a equallateral triangle. i would go with A. though because if you imagine the line at the bottom of the line (100ft.) the line would go over half of it (and 53.2 is over half of 100) so i would say

A.53.2

if this didnt help let me know. and i will delete this (if i can-)

Related Questions

Plz help me with this

Answers

Answer:

The first choice

Step-by-step explanation:

It says that its decreasing so the slope is negative.

It also starts of with 565 so that's the y intercept

A student wrote and simplified an expression for the perimeter of the rectangle. (Using the picture provided.)

perimeter.
Explain the mistake that was made in the simplified expression. Include the correct simplified expression in your explanation. Be sure to use math vocabulary words.

Answers

Answer:

Again...

Step-by-step explanation:

3x + 9 = -45 step by step please

Answers

Answer:

x=- 18

Step-by-step explanation:

3x+9= -45

3x=-45-9

3x=-54

x=-54/3

x= -18

solve 10x+7-8x=6
expressions and equations

Answers

Answer:

2+7

Step-by-step explanation:

Combine 10x and negative 8x and you get 10-8 which equals you to 2x, so now you have 7+2x=6 . Subtract 7 on both sides, you’ll get 2x=-1. Then you need to divide 2 and -1 which leads you to ur answer which is -1/2

Element X is a radioactive isotope such that every 20 years, its mass
decreases by half. Given that the initial mass of a sample of Element X is 410
grams, how long would it be until the mass of the sample reached 270 grams,
to the nearest tenth of a year?

Answers

Answer:

12.1

Step-by-step explanation:

y=a(1/2)^t/h

270=410(1/2)^t/20

Divide both sides by 410

0.6585365854 = (1/2)^t/20

Log Both sides

Log(0.6585365854) / Log(1/2)

.6026645024= t/20

20 x .6026645024 = t

12.05329005 to the nearest tenth is 12.1 = t

Write the equation of the line that passes through (-3,9) and is parallel to y = -2x + 5

Answers

Answer:

y = -2x +3

Step-by-step explanation:

Parallel lines always have the same slope

To insert the point, use the slope intercept formula: y =mx+b

insert y (9)

insert x (-3)

insert the slope -2

9 = (-2)(-3) + b

9 = 6+b

subtract 6 from both sides

3 = b

23% of what number is 36? please help

O 36 = (0.23)x
O x = (0.23)(36)
O 36 = 23x
O x = (23)(36)

Answers

the answer is “x=(0.23)(36)”

Match each table to the slope it represents

Answers

Answer:

I dont see anything how am I supposed to

The population of a colony of mosquitoes obeys the law of uninhibited growth. If there are 1000 mosquitoes initially and there are 1500 after 1 day, what is the size of
the colony after 3 days? How long is it until there are 80,000 mosquitoes?
The size of the colony after 3 days is approximately mosquitoes.

Answers

Answer:

There are 2,500 misquitos after 3 days and it takes 158 days to reach 80,000 mosquitos.

PLZZ HELPP IM FAILLING THIS CLASS

Answers

Answer:

Hope this helps!!! :)

Step-by-step explanation:

#1: if there is buy 1 get 1 free, then buy 6 get 3 free. so 2.8 times 3 = $8.4

#2: 4 for $3. break it up to 1 for $0.75. now 0.75 times 6 = $4.5

#3: the second one. $4.5 < $8.4

#4: 45 times 12 = $54

what two numbers add up to be 116.5

Answers

Answer:

58.25

Step-by-step explanation:

116.5 / 2

= 58.25

Hope this helps!!

58.25+58.25

Those are the two numbers that add up to that number (116.5)

Btw there are also MULTIPLE numbers that add up to 116.5, I'm just putting the one that makes the most sense.

(｡ŏ﹏ŏ)

Miri

1/3^3= 1/27 I will need this answer soon as possible plz

Answers

Reduce by cancelling the common factors.

(13)x−1=27 Convert the exponential equation to a logarithmic equation using the logarithm base (13) of the right side (27)  equals the exponent (x−1)log13(27)=x−1

A gym membership charges a one-time application fee of $15, plus $32 each month. Which of the following equations could represent the total cost, y, for x number of months?

A.y = 32x + 15
B.y = 15x + 32
C.y = 47x
D.15y = 32x

Answers

Answer:

The answer is A. y =32x + 15

Step-by-step explanation:

The reason behind this is the rate. The amount of money each month is the slope (m). The additional fee would be the b.

17q=476 Solve for q​

Answers

Answer: The answer is q = 28.

I give Brainlliest! 15 pionts!
Write the decimal as a percent.

0.768 =

Answers

Answer:

76.8%

Step-by-step explanation:

All you have to do is multiply the decimal by 100.

Answer:

76.8%

Step-by-step explanation:

I just did a thing and got the answer -v-


[tex] \sqrt[3]{( \frac{1}{8} - x)} = - \frac{1}{2} [/tex]
what is the answer? ​

Answers

∛(1/8 - x) = -1/2

Take the 3rd power of both sides and solve:

(∛(1/8 - x))³ = (-1/2)³

1/8 - x = -1/8

2/8 = x

x = 1/4

What is the range of the graph above?

Answers

There is no graph for us to see

A publishing company conducted a survey asking readers whether they use e-readers. Of the 3,000 readers surveyed, 1,954 said they read books on an e-reader. Use this information to complete the statement. Round your answers to the nearest hundredth.

Answers

Answer: See explanation

Step-by-step explanation:

You didn't say what you would like to calculate but based on tbe information given in the question, I guess that you want to calculate the percentage of readers who use an e-reader. This will be:

Number of readers surveyed = 3,000

Number of readers reading on e-reader = 1,954

Percentage of e-readers would then be:

= (1954 / 3000) × 100

= 65.13%

helpppppppppppppppppppppppp meeeeeeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer: The answer is C

Step-by-step explanation:

2. Solve:
у = 3х
x = -2y + 70

Answers

the answer should be (10,30)

Answer:  (10,30)

Step-by-step explanation:

y = 3x  

x = -2y + 70  

Solve by using the substitution method. Substitute the value for x into the first equation and solve for y.

y = 3(-2y + 70)      Multiply it out

  y = -6y + 210            Add 6y to both sides

+6y    +6y

7y = 210

 y =  30  

Since y is equal to 30, input the value for y into the equation and solve for x.

30 = 3x    Divide both sides by 3

x = 10

The inverse function of f(x)= 1/2x +10 shown.
h(x) =2x- ____
What’s the missing value

Answers

Answer:20

Step-by-step explanation:

y=1/2x+10

1/2x=y-10

x=2y-20

y=2x-20

In the given figure, ABCD is a trapezium in which AD || BC,
ABC = 90°, AD = 16 cm, AC = 41 cm and BC = 40 cm. Find the
area of the trapezium,
​

Answers

Answer:

252 cm²

Step-by-step explanation:

Find AB:

AB² = 41² - 40²

AB² = 81

AB = √81

AB = 9 cm

Area of the trapezium = ½(a + b) × h

Where,

a = 16 cm

b = 40 cm

h = 9 cm

Area = ½(16 + 40) × 9

Area = ½(56)×9

Area = 252 cm²

Please answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!

Answers

Answer:

For every 2 boys in class, there is 1 girl in class

Step-by-step explanation:

(0,0)
M is the midpoint of CD. If the midpoint M
is (-3, 5) and C is (2,3), then what are the
coordinates of D?
O
(-1/2,4)
(-8,7)
o
(-4,1)

Answers

Answer:

The answer is (3-,5) watch is C cause if you do that but in math form it's the same

By which rule are these triangles congruent?

A) AAS
B) ASA
C) SAS
D) SSS

Answers

Answer:

A) AAS

Step-by-step explanation:

3/4 square feet in 1/4 hour

Answers

Answer:

ill assume you're asking the answer for 1 hour

Step-by-step explanation:

multiply each side by 4. then, 12/4(3)=1

so 3 square feet and hour

Li bought his dog Spot a huge bone that is 15 inches long. Spot chews 4 inches off the bone every day. What is the new length of the bone after 3 days?

Answers

Answer:

3 inches

Step-by-step explanation:

If the dog chews off 4 inches every day, you first have to multiply the inches by the number of days, which in this case is 3 x 4, which equals 12. In 3 days, he chewed off 12 of the original 15 inches, leaving only 3 inches left.

20 point question pls help math

Answers

its B 15 divide by 3 is 5 because 2 - 5 is -3 - 15 is 5

I don't know how doing this​

Answers

Slope intercept form - y = m(x) + b. m represents slope, b represents the y-intercept. You should be able to plug in any value for y and x into the equation, and it should result in a true statement.

The y-intercept is easy to find. It is the point where X is equal to zero and the graph line crosses through the y axis. In this case, y intersects at -2. Since we insert the y intercept at b, we can go ahead and plug it in there.

y = m(x) + b > y = m(x) - 2  

Since there is only one option with the y intercept equalling -2, you can go ahead and pick D) y = -x - 2 as your answer, since no other options have the correct y-intercept.

9.476, 9.427, 9.43, 9.347, 9.4, 9.38

HELP ASAP


LESSER GREATER

Answers

Answer:

B. 9.427, D. 9.347, F. 9.38, E. 9.4, C. 9.43, A. 9.476,

Step-by-step explanation:

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