Mathematics High School

HELP PLEASE!!


If –8x + 2y = -4 is a true equation, what would be the value of 40x – 10y?

Answers

Answer 1
If u need to find the values for X & Y I believe this is the right answer

X = 1 —— Y = 2
-8x + 2y = -4
-8(1)+ 2(2) = -4

40x - 10y
40(1) - 10(2)
40 - 20 = 20

Related Questions

if u can explain please :)

Answers

Answer:

it would be c because 12+8 = 20 and 24 is closer to 20

A photographer shines a camera light at a particular painting forming an angle of 40° with the camera platform. If the light is 58 feet from the wall where the painting hangs, how high above the platform is the painting?

Answers

Answer:

Let y be the height above the camera platform of the painting.

tan (40degrees) = y/58

y = 58[tan(40)] = 58(0.8391) = 48.67 feet.

y = 48.67 feet

Step-by-step explanation:

What is the volume of the figure below?

A.180 centimeters cubed

B.540 centimeters cubed

C.380 centimeters cubed

D.360 centimeters cubed

Answers

Answer:

a

Step-by-step explanation:

Hey can you help me fast!!!

Answers

Answer: -15 + 42

Step-by-step explanation:

Can someone help me with this and explain it?

Answers

Answer:

4 pizzas

Step-by-step explanation:

Equation:

12x + 7 = 55

12x = 55 - 7

12x = 48

x = 4

What is equivalent to 12:20

Answers

some equivalent could be-
6:10
24:40
36:60

Answer:

3:5 or 3/5

Step-by-step explanation:

12:20

3:5

it can be 3/5 also

Imagine two lines intersect. How can the properties of linear pairs and vertical angles help to determine the angle measures created by the intersecting lines? Explain

Answers

when 2 lines intersect ,4 angles are formed.in that vertically opposite angles will be equal. adjacent angles will be found using linear pair{sum of linear pair of angles will be 180degree}

Answer:

If you know the measure of one angle in a linear pair, you can find the measure of the other because the sum of the measure of the two angles is 180 degrees. If you know the measure of one angle in a pair of vertical angles, you can find the measure of the other because they are congruent.

An expression is shown.
(4 x 10-5+ (2x 10-5
(3 x 107)
Which expression is equivalent?
A 2x 10-17
® 2 x 10-12
© 2x 10-2
2x 1012

Answers

Answer:

4575t8768756970

Step-by-step explanation:

46879x468790x587690x587690x758690x6587x90=2314567890-

pls do 1 and 2 thanks for helping me out

Answers

Answer:

1) Add 4

2) Add 6

Step-by-step explanation:

In Q1, you add 4 to the input to get the output.

13+4=17

20+4=24

In Q2, you add 6 to the input to get the output.

14+6=20

28+6=34

Hope this helps :)

two cords.
AD=92 and BC=140
What does m

Answers

Do you have a visual I can go based off of?

Use the figure to find the measure of <6. Plz help

Answers

Answer:

<6=82°

Step-by-step explanation:

jeoskzkkkkkkiwowowowoq

Answer: The answer is 82%

Step-by-step explanation: if you really pay attention and think its the same measurements.

What is the equation for the line?

Answers

Answer:

y=mx+b

so, y=1/4x+6

Step-by-step explanation:

plug in, then simplify the slope.

HELP PLEASE 15 POINTS

Answers

All you have to do is rotate the left-hand triangle to match the right one, and you see that the angle degrees match up, so KL = 9.5

isosceles triangle ... area and y intercept comparison. WORTH 100 points !!!!

Answers

As A decreases,y approaches 2

Which of the following is most likely the next step in the series

Answers

Answer:

it should be answer "C"

Step-by-step explanation:

each picture it removes 1 point, first one has 4, next has 3, next has 2, ect.

A stack of books is 69 inches high. How high is it in feet and inches?

Answers

5 feet 7 inches. There’s 12 inches in a foot so all you have to do is 69 divided by 12

PLEASE HELP ME ASAP PLS

Answers

Answer:

5.3

Step-by-step explanation:

3x+4=28

x+4=28/3

x+4=9.3

x=9.3-4

x=5.3

Solve the triangle, round answers to the nearest tenth.

Answers

Step-by-step explanation:

to get DE nd also EF u can use the cosine rule since two angles and a side has been given

and to get the angle at D since we know ∆=180 then u add up the angles given then u subtract from 180

Help me plssss
Find m < ABC.

Answers

Answer:

m<ABC=51°

Step-by-step explanation:

The inscribed angle is half the measure of the intercepted arc. This means that angle ABC=1/2 arc AC

Using this, let's make an equation

5x+11=(1/2)(16x-26)

5x+11=8x-13

11=3x-13

24=3x

x=8

Now go back to angle ABC and substitute for x

5(8)+11=51

m<ABC=51°

Answer:

m<ABC = 51

Step-by-step explanation:

m<ABC = 1/2 arc AC

(5x + 11) = 1/2(16x-26)

x=8

Plug it in

5(8) + 11 = 51

Each interior angle of a regular polygon is 100 degrees larger than the exterior angle determine the number of sides of the polygon

Answers

Answer:

9 sides

Step-by-step explanation:

Each interior angle of a regular polygon is 100 degrees larger than the exterior angle determine the number of sides of the polygon

Interior angle + exterior angle =

180°

Let x be the exterior angle.

Exterior angle = 180-x = 100 + x

= 180 - 100 = x + x

80 = 2x

x = 80/2

x = 40

Number of sides of the polygon =

= 360°/Exterior angle

Exterior angle = 40°

= 360/40 = 9 sides

Find the missing angle

Answers

Answer:

If this is a parallelogram:

∠y = 112°

corners opposite the 112° corners = 68°      [(360° - 112° - 112°)/2 = 68°]

∠z = 68° - 40° = 28°

∠x = ∠z = 28°

Answer:

x = 28°, y = 112°, z = 28°

Step-by-step explanation:

suppose it's a parallelogram,

in a parallelogram, opposite angles are congruent: y = 112°

40 + 112 + x = 180

=> x = 28°

If 2 lines are cut by a transversal, then the alternate interior angles are congruent: x = z => 28° = z

hello, and good morning ppl!!
what´s [tex]\sqrt{70* 70}[/tex]

Answers

Answer:

[tex]\sqrt{70\times70}[/tex]

[tex]70\times70=4900[/tex]

[tex]=\sqrt{4900}[/tex]

[tex]=70^2[/tex]

[tex]=\sqrt{70^{2} }[/tex]

[tex]=70[/tex]

OAmalOHopeO

Harrison ,Tad and dale ride their bikes to school Harrison rides 3/4 mile,Tad rides 3/8 and dale rides 3/6 mile. Compare and order and distances the boys ride from least the greatest

Answers

Answer:

3/8 , 3/6. 3/4

Tad drove the least miles because the miles ridden is less than both 3/6 and 3/4 miles

Dale rode the second greatest mile because the miles ridden is greater than 3/8 but less than 3/4

Harrison rode the greatest mile because the miles ridden is greater than both 3/6 and 3/8

Step-by-step explanation:

to order the miles ridden , convert the fraction to decimals. to do this, divide the numerator by the denominator

3/4 = 0.75

3/6 = 0.5 miles

3/8 = 0.374

What is the perimeter?
I’ll give you brainiest however you spell it

Answers

Answer:

solution given :

side1[S1]=17cm

side2[S2]=21cm

side3[S3]=10cm

height[H]=8cm

we have .

perimeter of triangle[P]= sum of all sides

=S1+S2+S3=17+21+10=48cm is your answer

PLSSSSS HELPPPPPPPPP PLSSS

Which of the following is TRUE regarding Darwin's theory of evolution?


A. Species change over long periods of time, giving rise to new species.

B. Darwin’s views are no longer accepted by the scientific community.

C. Characteristics acquired during an individual’s life are always passed on to future generations.

D. Pure chance determines which species evolve.

Answers

Answer:

Pretty sure it is A

Step-by-step explanation:

A rectangular prism has a length of 1 yards, a width of 2) yards, and a height of 4 yards.
Enter the volume of the prism as a mixed number in simplest form in the box.

Answers

Answer:

8

Step-by-step explanation:

2*1*4=8

PLZ HELP QUICK WILL MARK BRAINLIEST

Answers

Answer:

21

Step-by-step explanation:

a rectangular garden has a perimeter of 100 meters. the length is four times it’s width. find the dimensions of the garden.

Answers

Answer:

Step-by-step explanation:

p = 100

l = 4w

l = 80

w = 20

80 = 20*4

which is the solution to 4/5(n-3)=n-2

Answers

Answer:

-2 = n

Step-by-step explanation:

Multiplying both sides by (5/4) quickly isolates (n - 3):

(5/4)(4/5)(n - 3) = (5/4)(n - 2), or

n - 3 = (5/4)(n - 2)

Let's eliminate fractions by multiplying both sides by 4:

4n - 12 = 5n - 10

Combining like terms, we get -2 = n

A glass marble has a radius of 1cm. How much glass is in the marble?

Answers

Answer:

4.19cm^3

Step-by-step explanation:

π^2

V=[tex]\frac{4}{3}[/tex]πr^3

= 4/3·π·13≈4.18879

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