Mathematics High School

Solve the compound inequality
3t-8/5 and 4-t<-7

Answers

Answer 1

Answer: -2.8

Step-by-step explanation:

3t-(8/5) * 4-t < -7

(15t-8)/5 * 4-t < -7

((15t-8)(4-t))/5 < -7

(15t^2)-28t-32< -7

(15t^2)-28t-32-7< 0

(15t^2)-28t-39< 0

Using the quadratic/almighty formula

t= (-b +- ((b^2)-4ac)^(1/2)/2a)

a=15, b=-28, c=-39

t= (-(28) +- (((-28)^2)-4(15)(-39))^(1/2))/2(15))

t= -2.8 or t= 0.9

Since

t<0, then t= -2.8

Related Questions

What’s the approximate value?

Answers

Answer:

D-24.2

Step-by-step explanation:

I'm not sure though

Yup that’s right nice one

Help meeeeeeeeeeeeee plzzzzzzzzzz

Answers

What do you need help with ????

Answer:

Step-by-step explanation:

school is to much sometime's :c

What is 3052.08 rounded to the nerarest whole number

Answers

Hi there!

What we have to do...

Round terms:

to have no decimal points means whole number.

3052.08=3052

Nearest whole number: 3052

Write an equation for (-1,-2),(-3,-4)

Answers

Answer:

y=x+1

Step-by-step explanation:

First find the slope by subtracting the y values from both points and dividing it by the subtraction of the x values from both points:

-4--2/ -3--1= -2/-2= 1

so the slope is 1

Now find the y-intercept by plugging in the x and y from one of the points into the equation y=x+b

-3=-4+b

1=b

now plug the slope and y intercept in:

y=x+1

hope this helps :D

pls answer asap
its due tomorrow

Answers

Answer:

[tex]\frac{19}{14} x+\frac{97}{56}[/tex]

Which ordered pair is a solution to the following inequality? Select all that apply. y > 7x −3

A. (2, 12)
B. (-3, -15)
C. (0, -3)
D. (1, 5)

Answers

a 2 12

la respuesta

a (2 212

Aniyah scored 95% on her math test. If she answered 19 questions correctly, how many total questions were on the test?

Answers

Answer:

20

Step-by-step explanation:

19/0.95=20

Anyone know what the answer is? I'd appreciate it if someone could help because im stuck

Answers

Answer:

100

Step-by-step explanation:

Isosceles triangle have 2 equal angles. Therefore the second angle in the triangle will also be 25.

Since the sum of angles in a triangle is 180.

180-(25x2) will give you the last angle in one of the triangles.

The other angle is identical so the angle at the top of the other triangle will also be 130.

The sum of angles in a circle is 360.

Therefore, angle x = 360-(130x2)

X= 100

NEED HELP LOTS OF POINTS!!! Diego had $21.32 and gave $9.50 to Elena. How much did he have left?

Answers

Answer:

11.18

Step by Step Explanation:

Subtract 9.5 from 21.23

Help please please please

Answers

Answer:

surface are of cylinder= 2 pi r²+2pi r h

s.a= 2 pi r (r+h)

s.a=2×3.14×5(5+30)

s.a= 1099 in²

Which graph correctly represents the fraction 1/3y - 1/2x > 2

Answers

Answer:

b i believe

Step-by-step explanation:

Shelly is using a vase shaped like a triangular prism to display a dozen roses. The volume
of the vase is 154 cubic inches with dimensions shown.
h
7 in.
4 in.
What is the height, h, of the vase?

Answers

Answer:

11 inches

Step-by-step explanation:

Assume the base is right triangle.

The volume:

V = bh = 1/2abh

Substitute values and solve for h:

154 = 1/2(7)(4)h154 = 14hh = 154/14h = 11 inches

What is the slope (1,3) and (5,4)

Answers

Answer:

1/4

Step-by-step explanation:

y2-y1

--------

x2-x1

(x , y)

(1 , 3)

(5 , 4)

4-3=1

--------

5-1=4

Can someone plzzz help me

Answers

That’s on edge but I remember it’s b
The answer for this question is B

whoever answers right gets brainliest

Answers

Answer:

37

Step-by-step explanation:

Split the arrow into a rectangle and triangle. The area of the rectangle is 7x4=28. The area of the triangle is 6*3/2=9. 28+9=37

can someone help me with this please?

Answers

Answer:

y=70°

z= 60°

w= 70°

Step-by-step explanation:

Since the two triangles are similar, we know that all of the corresponding angles must be the same.  On the triangle on the left, we can see that the angle formed between sides AB and AC is 60°.  This means that the same angle is formed at Z, which is in the same location on the triangle to the right.  From there, we can find the missing angle, W, from the difference of 180°.

180°-50°-60°=70°.

The same way we found Z, we can also find Y, since it has to be the same as W.

How do you find the mean, median, and mode of a set of numbers?

Answers

Mean = Add all numbers and divide by how many numbers are in the set
Median = Middle Number, if theres even amount, subtract between two middle numbers
Mode = Number most frequent, if no number repeats, theres no mode

Answer:

Mean is add all the numbers then divide by the amount of numbers

Median is order the set of numbers, the median is the middle number

Mode is the most moon number

Also there is Range which is the difference between the highest number and the lowest number

Hope this helps:)

Step-by-step explanation:

HELP PLEASE ON THIS PROBLEM! LOT OF POINTS!!!!

Select all the proportional relationships.



Multiple select question.

A)
(Picture Below)

B) A train is traveling at a constant speed of 60 miles per hour. The number of hours the train has been traveling is t. The number of miles the train has traveled is d.


C)
The relationship is represented by this table:
(Picture Below)




D) y=3x , where x and y are both positive numbers.


E) y=1x

Answers

Answer:

A, C, D, and E

Step-by-step explanation:

They all have a constant rate.

fellow brainly users, please don't keep scrolling past this question. i desperately need help. help a sister out. ur reward will be glorious. please, please brainly wan kenobi.. u are my only hope

Answers

Answer:

i think it is 5x or x units

Not sure what kind of reward is glorious, but your answer is

Option 3

If I am wrong, let me know and I will redo the math

Estimate a 15 tip on a dinner bill of 71.68, By first rounding the bill amount to the nearest ten dollars

Answers

Answer:

round the bill up. 15% of that is 10.80

Step-by-step explanation:

(- 4, 2) (3, - 5) (7, - 9) (8, - 10) What is the domain of the set of ordered pairs above?

Answers

Answer: 3 [tex]\leq[/tex] x [tex]\leq[/tex] 8

3 is the smallest x value, and 8 is the largest.

plz help I need answers as fast as possible ​

Answers

Answer:

Step-by-step explanation:

a). Set of vowels in English alphabets:

    {a, e, i, o, u}

b). S = {x: x is a positive odd number less than 10}

    S = {1, 3, 5, 7, 9}

c). T = {letters in the word "WOOD"}

    T = {W, O, O, D}

PLZ HELP LIKE NOWWWW

Answers

What is help needed on?

Please find the surface area of a sphere with a volume of 36

Answers

Answer:

12 is the answer

Step-by-step explanation:

I just know the answer

Answer:

Step-by-step explanation:

volume of sphere = 4πr³/3 = 36π

r³ = 27

r = 3 ft³

surface area of sphere = 4πr² = 36π ft²

What is the slope of (-4,3) and (-3,1)

Answers

-.5 or negative 1/-2
same thing just in a dec and frac
M=-2 is the answer....

Matthew is training to participate in a half marathon. Each week, Matthew increases the number of miles he runs in the previous week by the same percent. The table below shows the number of miles he runs in weeks 1 and 2.

Week Number of Miles Run
1 12.5
2 15.5Complete the sentence. Do not round your answer.
Matthew runs
miles in week 3.

Answers

Answer:

Step-by-step explanation:

3/12.5 = x/15.5 so x is 3.72

Then 3.72 + 15.5 = 19.22

Answer:

answering so they can get brainliest ^^

Step-by-step explanation:

|16|-|-5| what is the answer

Answers

Answer:

11

Step-by-step explanation:

the little bars mean absolute value and the absolute value of -5 is 5

16-5=11

Solve this system of linear equations. Separate the x- and y- values with a comma.
17x = 43 - 15y
8x = -68 + 15y

Answers

Answer:

(-1,4)

Step-by-step explanation:

Using elimination, add the two equations to get rid of the y variable.

17x = 43 - 15y

+8x = -68 + 15y

=25x = -25

x = -1

Now plug in -1 for x in any of the equations.

17(-1) = 43 - 15y

-17 = 43 - 15y

-60 = -15y

y = 4

more free brain pointssssss if u can answer the question 3+90000000

Answers

Answer:

253892639292639264638 yw

The answer is 9000003

Solve 45x - 56 > 9x + 25 where x is a real number

Answers

Answer:

x = >9/7

Step-by-step explanation:

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