Mathematics High School

(1.3x + 2.4) + (-6.1x – 3.2)

Answers

Answer 1

Step-by-step explanation:

In simplify form: 1.3x+2.4-6.1-3.2 = -4.8x-0.8

or factor the expression: =-4/5×(6x+1) Alternate form: -0.8(6x+1). I hope this helps.

Related Questions

What does S in Math means?

Answers

Step-by-step explanation:

subtract

i think this

30% of what number is 7.5??

Answers

Answer:

x = 25

Step-by-step explanation:

the question can be given as x * .3 = 7.5, or rearanged into

7.5/0.3 = x

75/3 = x if you multiple the fraction by 10/10

x = 25 in this case

Brainliest for the correct answers

Answers

Answer:

a) 3a + 8b = 93

Hope this helps!

The perimeter of triangle ABC is 36 cm. Its sides are proportional to the numbers 3, 4 and 5. Find the sides of the triangle.

Answers

Answer:

3x+4x+5x=36

12x=36

x=36/12

x=3

3x=3 into 3=9

4x=4 into 3=12

5x=5 into 3=15

The light from the Cape Florida Lighthouse in Key Biscayne is visible for a distance of 15 mi. If the beam of light sweeps in an arc of 270°, what is the area covered by the beam?

Answers

Answer:

Area covered by beam = 530 mi² (Approx.)

Step-by-step explanation:

Given:

Radius = 15 mi

Arc angle = 270°

Find:

Area covered by beam

Computation:

Area of sector = [θ/360][π][r²]

Area covered by beam = [270/360][22/7][15²]

Area covered by beam = [0.75][3.1428][225]

Area covered by beam = 530 mi² (Approx.)

Please Help! Evaluate this expression 10.82-9.99

A. 0.53

B. 0.83

C. 1.01

D. 1.23

Answers

0.53 hope that helps!!

Melissa has a total of $250 in her savigns account. She started with $110 and then earned the rest of her savings by babysitting. Melissa charges $7 per hour. Write an equation to represent the situation and determine the number of hours (h) she babysat last week.

Answers

Answer:

Number of hours= 20 hours

Step-by-step explanation:

Giving the following information:

Net savings (babysitting)= 250 - 110= $140

Rate per hour= $7

To calculate the number of hours that Melissa worked as a babysitter, we need to use the following formula:

Number of hours= net savings / rate per hour

Number of hours= 140 / 7

Number of hours= 20 hours

what problem can be solved using 3/5 divided by 5/8

Answers

Answer: 24/25

Step-by-step explanation:

= 3/5 ÷ 5/8

= 3/5 × 8/5

= 24/25

Please help me ASAAAPPPP I need help rn !

Answers

Answer:

1099 in.²

Step-by-step explanation:

2πr²+2πrh

2×3.14×5×5+2×3.14×5×30

157+942

1099 in.²

Answer:

1099 in. ²

Step-by-step explanation:

because of how its measured

Pls help me I need this done . Look at picture . What is the measure of..

Answers

The anwer is 62 degrees

Step-by-step explanation:

angle x and the angle with a measure of 62 degrees are alternate exterior angles therefore they are congruent

One leg of a right triangle is 7 and the hypotenuse is 10. What is the length of the
other leg?

Answers

Answer:

L = 7.14

Step-by-step explanation:

using the Pythagorean theorem:

L² = 10² - 7²

L² = 100 - 49= 51

L = 7.14

Answer:

7.14

Step-by-step explanation:

to answer this you need to use pythagoras theorem and that is A²+B²=c²

in this case C²-A²=B²

10²=100

7²=49

100-49=51

then you need to square root 51 which gives your answer 7.14

May someone please help me with this :)

Answers

14 + 3 = 17 yd that is your answer I used Pythagorean theorem

Answer:

14.3 yd

Step-by-step explanation:

apply the pythagorean Theorem formula:

= sqrt(14^2 +3^2)

= sqrt(205)

roughly 14.3 yd

Graph the equation y = 4x − 5 using slope and y−intercept.

on a graph

Answers

ANSWER:
The picture below is an image of what the graph should look like. Hope this helps!

Renaldo says that parallel lines intersect a circle at opposite
ends of the same diameter. If a line is tangent to a circle, then
the radius of the circle is perpendicular to the line at the point of
tangency. Does this fact support Renaldo's conjecture? Explain

Answers

Answer:

Yes

Step-by-step explanation:

Noted that the claim only stands true IF BOTH OF THE LINES ARE TANGENT TO THE CIRCLE. [If one line cut the circle at 2 distinct points, the claim is false]

This can be explained with tangent properties. Consider a circle with radius r, by tangent properties, then the radius of the circle is perpendicular to the line at the point of tangency as stated in the question. Since the two lines are parallel, we can bring back up parallel lines theory, the alternative angles of the two tangent to the circle is equal to 90.

Try to draw a line linking the two points of tangent passing through the radius, it is the diameter of the circle, thus parallel lines intersect a circle at opposite ends of the same diameter.

will give brainliest! question in pic! help asapp!

Answers

Answer: D

Step-by-step explanation:

Answer:

[tex]6x^{2}+10x-12[/tex]

Step-by-step explanation:

I’ll really appreciate it if you help me out with this one .

Answers

Answer:

Linear Function

Step-by-step explanation:

Every time x goes down by 2 y drops by 4. This represents a pattern and has a definitive slope. (It has a constant rate of change.)

A bag contains 3 white balls, 4 green balls, and 5 red balls. A ball is drawn at random. How many total number of outcomes are there?

Answers

Answer:

Step-by-step explanation:

5+4+3 = 12

Answer:

12 is the total outcome.......

Step-by-step explanation:

3+4+5=12 is the ans.....

hope this will help u.....

Help please! I know this is easy but I don’t know what to do!

Answers

Answer:

Step-by-step explanation:

what is 1257÷45 I really need help

Answers

Exact Form:

419/15

Decimal Form:

27.93...

Mixed Number Form:

27 14/15

Hope this helps(:

In Holborn School there are
460 students in Key Stage 3
320 students in Key Stage 4
165 students in Key Stage 5
Nimer is carrying out a survey.
He needs a sample of 100 students stratified by Key Stage.
Work out the number of students from Key Stage 3 there should be in the sample.
(2 marks)
students
Submit Answer
Skip for Now

Answers

Answer:

Total students = 460+320+165=945

Key stage 3 ... asafraction = 460 divide by 945

the number in a sample of 100 = 460 divide by 945 x 100= 48.67

So 48 or 49 (are both, acceptable answers).

Could 85, 13 and 84 be the side length of a right triangle?

Answers

Answer:

No because the side lengths won't equal the hypotenuse

Step-by-step explanation:

85^2 + 13^2 ≠ 84^2

a
2.1 cm
2.9 cm
Find the value of a.

Answers

Step-by-step explanation:

[tex]a = \sqrt{ {2.9}^{2} - {2.1}^{2} } = \\ = \sqrt{8.41 -4.41 } = \\ \sqrt{4 } = 2[/tex]

Micki bought 4 gallons of apple cider. How many quarts did she buy?

Answers

Answer:

Step-by-step explanation:

There are four quarts in a gallon. 4x4=16.

Answer:

4 quarts per gallon

4 quarts times 4 gallons= 16 quarts

-18x+2x-15x+23x-12x-4x
Combine like terms

Answers

Combine like terms =75x

Answer:

-24x

Step-by-step explanation:

Combining them all leads you to get -24x.

100 points! Please help! If the total perimeter of the triangle is 5x 3+ 4x 2− x – 3, what is the length of the third side of the triangle? (This will require subtraction) Please show steps

Answers

Answer:

What is the length of the third side of the triangle? The Answer Is -9

Step-by-step explanation:

Always use your calculator and type in your equation " 5 x 3 + 4x 2− x – 3" i think this helped but i have no idea good luck though

find the area of the composite figure 12 yd height 10 yd base

Answers

Answer:

120 yd^2

Step-by-step explanation:

1. 12x10= 120

2. 120 yd ^2

I WILL GIVE BRAINLIEST!!!

Answers

Answer:

Step-by-step explanation:

help with my khan academy assignment please

Answers

Full bubble at 0, then make it go right.

I’ve attached how you would draw this...
hope it helps!

1
Identify the shape and find the area. (Round your answer to the tenths place if needed)
10
Shape
Perimeter = 17
Apothem = 4.2
Area =
NEXT

Answers

Answer:

Pentagon and I think the area is 19.89 so if you round it, that will be 19.9

Please help fast! will mark brainliest and give a lot of points

put the following expressions into words-no solving.

3/4x(6+4)

1/2x(5-3 1/2)

Put the following into expressions-no solving

One-third the sum of 6 and 3

Four times the quotient of 3 and 4

One fourth the difference between 3 1/2 and 1/2

Answers

Answer:

Please help fast! will mark brainliest and give a lot of points

Other Questions

A right rectangular prism is shown. The base rectangle has side lengths of 10 centimeters and 3 centimeters. The height of the prism is 8 centimeters. What is the volume of the right rectangular prism? 21 cm3 42 cm3 120 cm3 240 cm3 5(2 + (9)) + (25) :( Solve for x.x^2 + 6x + 9 = 12x= -3+2V3x = -3+4V3x= -9 + 4V3x=-9 + 2V3 Can someone please answer this question? It is from RSM. The first to answer will be marked brainliest Answer the questions below! A private reptile breeding facility near the Everglades was destroyed by Hurricane Andrew in 1992. This event contributed to the original influx quantities of pythons in the wild. Pet owners also contributed to the introduction of these reptiles to the Everglades by releasing pets that had grown too large to care for. These reptiles are considered species to this ecosystem.can someone please write an explanation that describes the impact of the Burmese python on the Everglades?Claim: Evidence:Reasoning: whats difference between DCE AND DTE serial interface Abbot Corporation reported pretax book income of $500,000. During the current year, the reserve for bad debts increased by $5,000. In addition, tax depreciation exceeded book depreciation by $40,000. Finally, Abbot received $3,000 of tax-exempt life insurance proceeds from the death of one of its officers. Abbot's current income tax expense or benefit would be: What is the mean?12 18 10 5 11 10 8 6 Is this equation balanced: AgNO3 + 2 KCl -->AgCl + KNO3 Yes No Let event A = The animal is a birdLet event B = The animal can fly.Which outcomes are in A and B?A. {penguin, robin, sparrow, pelican, bat)OB. {robin, sparrow, pelican}O C. (penguin, robin, sparrow, pelican}O D. (robin, sparrow, pelican, bat) Please help if you can. The diagram below shows a circular pizza with a diameter of 16 inches. The pizza is in a square box with side lengths of 18 inches. In square inches, how much of the box is empty?Use = 3.14 and round your answer to the nearest hundredth. What percent of 125 is 90? Write your answers in the blanks. The standard deviation of the market-index portfolio is 35%. Stock A has a beta of 1.40 and a residual standard deviation of 45%.a-1. Calculate the total variance of stock A if its beta is increased by 0.20?a-2. Calculate the total variance of stock A if its residual standard deviation is increased by 7.54%?b. An investor who currently holds the market-index portfolio decides to reduce the portfolio allocation to the market index to 90% and to invest 10% in stock A. Which of the following changes (an increase of 0.20 in beta or increase of 7.54% in residual standard deviation) will have a greater impact on the portfolio's standard deviation?i. Both will have the same impact.ii. Increase of .20 in beta will have a greater impact.iii. Increase of 7.54% in the residual standard deviation will have a greater impact. The English colonies went to war with native Americans in 1675, they called the leader of the Wampanoag king Phillip, what was his native name Quadrilateral BCDE is similar to quadrilateral FGHI. Find the measure of side FG. Round your answer to the nearest tenth. What is the most ethical action for the network to take?have the journalist give the accurate account of the incident and apologize for lying to viewershave the journalist report on air that he was confused and misreported the incidentoffer a settlement to the Marine captain for withdrawing his accusationask the journalist to discredit the Marine captain by discussing the captains poor leadership in a new story Generally, a loan obtained from a bank will be a _____ loan.A. TaxedB. TermC. VariableD. Collateral-free CAN SOMEONE PLZZZ HELP ME I REALLY NEED HELP