What is the value of the expression 7.5(-1/2)?

Answers

Answer 1
answer:
-3.75
half of 7.5 is 3.75. and its negative. so
-3.75
Answer 2

Answer:

-3.75

Step-by-step explanation:


Related Questions

Sam typed 420 words in 10 minutes. If he continues to type at this rate, how many words will he have typed in 3 hours? Group of answer choices

Answers

Answer:

7,560 words were typed in 3 hours.

Edward deposited ​$10,000 into a savings account 2 years ago. The simple interest rate is ​2%. How much money did Edward earn in​ interest?

Answers

Step-by-step explanation:

Simple interest = PRT/100

S I = $10000 x 2 x 2

_____________

100

SI = $400

Answer:

$ 10,400

Step-by-step explanation:

Interest = P( 1 + rt)

10000 { 1 + ( 0.02 x 2 )

= 10000 * 1.04

= 10, 400

what is Alternate interior angles give an example ​

Answers

Hey there!

Basically, the alternate interior angles is/are the inside of the given lines but it’s unlikeable sides of your transversal

Basically, ∠1 & ∠2 are alternative interior angles

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

Answer:

in the above pic you can see 12345678 marked angles

the alternate interior angles are angle3,5,4and6

they are pairs of alternat interior angles

Step-by-step explanation:

I hope it helps mate

i will always help you understanding your assingments

have a great day

#Captainpower#

Triangles LMN and FGH are shown. True or False questions
1.MN/NL=GH/HF
2.LM+MN+NL=FG+GH+HF
3.Triangle LMN is similar to triangle FGH.

Answers

Answer:

yeah they are very similar to each other

Answer:

questions

1.MN/NL=GH/HF=true

2.LM+MN+NL=FG+GH+HF=false

3.Triangle LMN is similar to triangle FGH.=true

8x − 4y = −16
3x + 15y = −6

Answers

Answer:

good job that is correct

Step-by-step explanation:

goooooooooooooooooooooooood joooooooooooooooob

yep

find the slope of the line y = -2x + 3​

Answers

Answer:

Step-by-step explanation:

Write the slope perpendicular to y=-5/4x+1

Answers

Answer:

the slope is -4/5

Step-by-step explanation:

to find a perpendicular slope, you take the opposite of the reciprocal of the slope, if I remember correctly.

BRANLIEST TO THE RIGHT ANSWER!! NEED HELP ASAP!

Answers

Answer:

1

Step-by-step explanation:

1

Which set of ordered pairs represents a function?
(0, 0), (1, 2), (2, 4), (3, 4)

(0, 1), (1, 2), (2, 3), (2, 4)

{0, 0), (0, 2), (2, 2), (2, 4)

(O0, 1), (1, 3), (1, 5), (2, 6)

Answers

Step-by-step explanation:

на я был в bbs я был в душе

Parallel lines and transversals

Answers

It would be 140° because if you see the direction of the 70° it’s the same as m<1 and m<2 so you just have to add 70°+ 70° which leads you to 140° :)

Which compound inequality could be represented by the graph?

Pls help

Answers

Answer:

I think 3 is right . uihhhujh

A car travels 2/5 mile in 1/2 minute . What is the car’s speed in miles per hour? Explain how you determined your answer

Answers

Answer:

48%28mil%2Fh%29

Step-by-step explanation:

if car travels %282%2F5%29mil%2F%281%2F2%29min =>2%282%2F5%29%28mil%2Fmin%29=%284%2F5%29%28mil%2Fmin%29

since 1h=60min multiply %284%2F5%29mil by 60 to get the number of miles per hour %284%2Fcross%285%29%29cross%2860%2912%28mil%2Fh%29=4%2A12%28mil%2Fh%29=48%28mil%2Fh%29

Answer:

48 miles

Step-by-step explanation:

1h = 60m

[tex]\frac{1}{2}[/tex]m --- [tex]\frac{2}{5}[/tex]miles

0.5m --- [tex]\frac{2}{5}[/tex]miles

60m --- [tex]\frac{60}{0.5}[/tex] × [tex]\frac{2}{5}[/tex]miles

            = 48 miles

What is an equation in point line slope form of the line that passes through the point (4,-1) and had slope 6

Answers

Answer:

y+1=6(x-4)

This is if you want it in point slope for,.

Step-by-step explanation:

Then, if you simplify it.

y+1=6x-24

y=6x-25

Now, it is in slope intercept form.

Write as a mixed number.
4/3

Answers

Answer:

1 1/3

Step-by-step explanation:

hope this helps!! : D

1 1/3 sorry if this is wrong!

a reindeer leaves the north pole flying east at 20mph. Another reindeer leaves the north pole at the same time flying west at 15mph. How long will it take them to be 700miles apart?​

Answers

Answer: well if they leave at the same time and one leaves 5mph faster than the other then...

Step-by-step explanation: ... it will take 15 hours for them to be 700 miles apart

CAN ANYONE HELP ME THAT IS GOOD IN MATH

Answers

OK soto find percentages or portions of a number you need to do this equation %/100 * x/#. Meaning that for example number one it would be 23/100 * x/52. And the process is to multiply the numbers opposite of each other and divide by 100. Which would give you 11.96. For instances like number two you would have to put the numbers depending on what they are for example 12/42 * x/100
Tell me if any of this makes sense and I can give you more explanation if you need help

The golden ratio is a solution to a quadratic equation.

a. Find the precise value for Φ by solving Φ2 − Φ − 1 = 0.

b. Which method of solving a quadratic equation did you use? Explain your reasoning.

c. What type of number is Φ? Why can it only be approximated by a decimal value?

Answers

Answer:

Below.

Step-by-step explanation:

a.    Φ^2 − Φ − 1 = 0

Φ2 − Φ = 1

(Φ - 0.5)^2 - 0.25 = 1

(Φ - 0.5)^2 = 1.25

Φ - 0.5 = √(1.25)      (We only take the positive root).

Φ  = 0.5 + √(1.25)

b. I used Completing the square.

c.  Φ is irrational That is it cannot be represented as a fraction a/b and because of this it can only be approximated by a decimal.

please help me !!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

20

Step-by-step explanation:

15 is the mid so +5 is 20 thus 20 is the anser

plsss help no spam.



.....................​

Answers

Answer:

Third one.

x=6 y=12

Ok!

Answer:

fourth option

Step-by-step explanation:

Given the 2 equations

y = 2x - 3 → (1)

x + y = 18 → (2)

Substitute y = 2x - 3 into (2)

x + 2x - 3 = 18

3x - 3 = 18 ( add 3 to both sides )

3x = 21 ( divide both sides by 3 )

x = 7

Substitute x = 7 into (1) for corresponding value of y

y = 2(7) - 3 = 14 - 3 = 11

Solution is x = 7, y = 11

Find the reference angle of 155o. –25o 25o –65o 65o

Answers

Answer:

The reference angle for 155° is 25°

Step-by-step explanation:

The reference angle is the angle that the angle arm makes with the x-axis be it clock wise or anti-clock wise.

The reference angles are obtained by the following reference

0 - 90° => Angle

90° - 180° => 180 - angle

Our given angle is: 155° so we will use the second rule

The reference angle will be:

180° - 155° = 25°

Hence,

The reference angle for 155° is 25°

What is the quotient?

Answers

5 7/9 is the answer

hope u understand this

Helppppppp circle theorems

Answers

Answer:

m=14°, n=28°

Step-by-step explanation:

Angles in a Circle

The central angle is formed between two radii and its vertex at the center of the circle.

An inscribed angle is formed between two chords whose vertex lies on the circumference of a circle.

The measure of the central angle a formed by the same lines that form an inscribed angle b is:

a = 2b

This means the angle of a = 98° is double of the inscribed angle of 35°+m:

98 = 2(35 + m)

Dividing by 2:

49 = 35 + m

Solving for m:

m = 49 - 35 = 14

m = 14°

Angles m and n are also formed by the same lines, and:

n = 2m

Thus:

n = 28°

Answer: m=14°, n=28°

What is the molar mass of the element gold?
help

Answers

Answer:

Molar Mass Molar mass is defined as the mass of one mole of representative particles of a substance. By looking at a periodic table, we can conclude that the molar mass of lithium is 6.94g, the molar mass of zinc is 65.38g, and the molar mass of gold is 196.97g. Each of these quantities contains 6.02 × 1023 atoms of that particular element.

Step-by-step explanation:

Hope this helps!!!

-BB

please mark me brainly

In a basketball game tamara made 16 out of 20 shots from the free throw line what percent did her shots make

Answers

Answer:80% of shots

Step-by-step explanation:

Divide 16 and 20 by 2

8 and 10

10 is total and 8 is how much she made therefore 80% of shots were made by Tamara.

Printer A prints 36 pages every 1.5 minutes. Printer B prints 114 pages every 3 minutes.

Printer C prints 115 pages every 5 minutes Which printer prints the fastest?

Answers

Answer:

printer A-  36/1.5

printer B-  114/3

printer C-  115/5

first, multiply 1.5 x 10, 3 x 5, and 5 x3

you should get 15 for each.

once you have the denominators all done, multiply the numerators by the value you multiplied the denominator by and you should have your answer.

so all in all, printer B prints the fastest

please mark brainliest

Simplify completely: 220 - 2,5
O 65
O /15
O 25
O 2/15

Answers

Answer:

Exact Form:

2√5

Answer: Okay, the answer is [tex]2\sqrt{5}[/tex], the decimal form is 4.4, please mark me as brainliest! :)

Step-by-step explanation: You'll need to pull terms out from under the radical, assuming positive real numbers. I hope you using Math-way to simplify the square root expression correctly to find this helpful for you, have a wonderful day! :D

WILL MARK BRAINLIEST !!!
find the indicated value for each of the figures shown or described

Answers

Answer:

10. 9

In the first question we can solve using the Pythagorean theorem. It states that the hypotenuse in a right triangle or the longest side of the triangle, squared is equal to the other 2 sides, squared. Its expressed as so: C^2 = A^2 + b^2 where c is the hypotenuse and a and b are the other sides oft eh triangle.

Therefore,

15^2 = 12^2+x^2

225=144+x^2

81=x^2

x=9

__________________________________________________________

11. x=12

In this figure, there are 2 right triangles on the sides of the square. If we can find the lengths of the base of both triangles then we can find x using the Pythagorean theorem. the total base is 21 and the square is 11. 11+a+b=21. We can assume that both triangles are congruent and therefore we can solve this equation:

11+a+b=21

a+b=10

5+5=10

b=5

a=5

The bases of the two triangles are 5 and the hypotenuse is 13. Now we can solve using the Pythagorean theorem:

c^2 = a^2+b^2

13^2=5^2+x^2

169=25+x^2

144=x^2

144= 12 x 12

x=12

__________________________________________________________

12.

The diagnol of a triangle is the hypotenuse and since the length is the square root of 3, we have all the information we need.

c^2 = a^2+b^2

2^2 = (square root of 3)^2+b^2

4=3+b^2

1=b^2

b=1

Step-by-step explanation:

hi, pls help me! :((​

Answers

Answer:

the y-intercept is (0,4) because it's the point that's sitting on the y-axis (the one going up and down)

Step-by-step explanation:

20 POINTS and BRAINLIEST
Solve the simultaneous equation!

Answers

Answer:

x=7 y=-2

Step-by-step explanation:

a girl was asked about her age and she said she is half her mothers age and she was asked how old was her mother and she said i dont know but my mom is 5 years younger than my dad and we asked how old is your dad and she said i dont know but the sum of our ages is equal to 100years.how old is the dad ,the mom and the girl?

Answers

Answer: girl- 19yr old  mom- 38yr old dad- 43 yr old

Step-by-step explanation:

5x+5=100

5x-5=100-5

5/5x=95/5

x=19

2(19)=38

38+5=43

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