Mathematics High School

In a quiz game, you get 15 points for each
correct answer and you lose 10 points for
each incorrect answer. Justin answered 8
questions correctly and 12 questions
incorrectly. What was his score?


HELPP ^^

Answers

Answer 1

Answer:

0

Step-by-step explanation:

15(8)-10(12)

15*8=120

10*12=120

120-120=0

Answer 2

Answer:

120

STEP-BY-STEP-EXPLANATION

15*8

Related Questions

-10x + 35 + 5x=-5x + 20 (I need a step by step solving/ Show your work)

Answers

Answer: Answer in Photo

Calculate the length between the following

points using the distance formula.


Help please

Answers

Answer:

S^2 = ((9 - (-3))^2 + ((3 - (-2))^2 = 12^2 + 5^2 = 169

S = (169)^1/2 = 13

Ayuda con esto vale 7.5% de la nota doy 15 puntos

Answers

Answer:

dagdagan mo hoy daya

Step-by-step explanation:

1733

Please help with any question thank uuuu <33

Answers

1. A

2. A

3. D

4. A

5. D

6. A

7. B

8. C

9. D

which of the following expressions is equal to -x^2-81

Answers

Answer: it is going to be answer a

If a line has slope -4/3 and passes through the point (-3, 7), what is the y-intercept of the
line?

Answers

Answer:

y- intercept = 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = - [tex]\frac{4}{3}[/tex] , then

y = - [tex]\frac{4}{3}[/tex] x + c

To find c substitute (- 3, 7 ) into the equation

7 = - [tex]\frac{4}{3}[/tex] (- 3) + c

7 = 4 + c ⇒ c = 7 - 4 = 3 ← y- intercept

A composite shape is shown.

6 cm

4 cm

1 cm

2cm

7 cm

To the nearest hundredth, what is the area of the shape? Use 3. 14 as an approximation for 2. Enter the answer in the box.

1cm²

Answers

Hold on, our servers are swamped. Wait for your answer to fully load.        Step-by-step explanation:

Find the measure of an angle whose complement is five times its measure.
The measure of the angle is?

Answers

Answer:

The measure of the unknown angle is 15°.

Step-by-step explanation:

Represent this angle by A.  Then the complement of A is 90° - A.

"Angle whose complement is five times its measure" would be expressed as

90° - A = 5A

Solve this for A by adding A to both sides:

90° = 6A.  Then A = 90°/6, or 15°

9. The figure shows a rectangle with its length and
breadth as indicated. Given that the perimeter of
the rectangle is 120 cm, find the area of the rectangle.
(3x - y) cm
(2x – 3) cm
(2x + y) cm

Answers

Answer:

875cm^2

Step-by-step explanation:

since opposite sides are equal

3x-y=2x+y

x=2y                                                      

y=x/2                                                                      ....(i)

thus new length=2x+y

=2x+(x/2)                                                              [using (i)]

=(4x+x)/2

l=5x/2                                                                   .....(ii)

now,

perimeter=2(l+b)=120cm

l+b=60cm            

from figure and using (ii)

[5x/2]+2x-3=60

[5x+4x-6]/2=60

9x-6=120

9x=126

x=126/9

x=14                                                                 ..........(iii)

substitute (iii) in (i)

y=14/2

y=7                                                                  ...........(iv)

From figure,

length=2x+y                                                   [using (iii) and (iv)]

=2x14+7

length=35cm

breadth=2x-3

=2x14-3                                                          ....[using(iii)]

=28-3

breadth=25cm

now,

Area=lxb

=35x25

=875cm^2

PERSON WILL GET 50+ POINTS IF CORRECT

Answers

5 jars of jam and 3 packages of bread mix

I need help fast please ​

Answers

Answer:

i think 2nd one is true....f(-2)=g(-2)

Answer:

A is correct: [tex]f(0)=g(0)[/tex]

Step-by-step explanation:

To find this answer, we first must identify what [tex]f(x)[/tex] and [tex]g(x)[/tex] means.

[tex]f(x)[/tex] shows the y value of the line at the specified x value.

[tex]g(x)[/tex] shows the y value of the line at the specified x value.

So in order to solve this problem, we must look at each of the options and see which one is true.

If we take a look at the first option...

[tex]f(0)=-2[/tex] in this example and [tex]g(0)=-2[/tex] as well.

[tex]-2=-2[/tex] and therefore, option A is correct.

London $42 for working 2.5 hours at this rate how much does she earn for working six hours

Answers

100.8

6/2.5=2.4

2.4×42=100.8

3. what equation passes through the 2 points
(0, 4) and (9, 10)​

Answers

y2-y1
____ = slope

x2 - x 1




10-4
—— = 6/9 = 2/3
9-0

10 = 2/3 (9) + b
10 = 6 + b
b = 4

put it all together!

y=2/3x + 4

What system of linear inequalities is shown in the graph
Enter your answers into the boxes

Answers

Answer:

[tex]y < \frac{1}{3}x + 2\\y \leq -2x + 2[/tex]

Step-by-step explanation:

The equation of a line can be simply found via slope-intercept form-y = mx+b,

where m is the slope and b is the y-intercept.

Ratios, Rates, and Circles Solve each problem. Show your work. Sierra has a pet Burmese python. It has grown too large for its enclosure and needs a new one. The rectangular base of the current enclosure has the length and width shown. Sierra decides to buy a larger enclosure that is a scale copy of the small one. The base of the new enclosure is 48 inches long. What is the perimeter of the new base?​

Answers

Answer:

144in

Step-by-step explanation:

METHOD 1:

18 - 36

x - 48

36x = 18 * 48

36x = 864

x = 24

ALTERNATIVE METHOD:

18:36 (breadth:length)

1:2

When the length is 48in, the breadth is half the length, hence, the breadth is 24in.

Final Solution:

So, when the base is 48in, the width is 24in.

Since we have the two values

P = 2(l+b)

= 2(48+24)

= 2 * 72

= 144in

Feel free to mark this as brainliest! :D

I need help please and thank you​

Answers

Answer:

sjsjsjsddxsssssd

Step-by-step explanation:

ejdjenxxdxgrsxswe

-2y=2 what is the solution of this equation

Answers

Answer:

wouldnt it be y=4?

Step-by-step explanation:

I NEED HELP ASAP NO LINKS !!!
Which expression represents this word phrase?
five more than the product of x and 6
6x + 5
5(x + 6)
(x + 6) + 5
5x + 6

Answers

Answer 6x+5

You would add 5 to 6x

Help pls, I will give BRAINLIEST

Answers

6.688 because to average you have to add all and then divide. so 25=167.2lb meaning 167.2/25= amount of weight of one
brainiest?

6.688 because to average, you must add everything and then divide by the number of items. So 25=167.2lb, which means 167.2/25= the weight of one

Which line segments have a positive slope?

Answers

Answer:

CD and EF .....................

The circumference C of a circle is found with the formula C=2(3.415)r​

Answers

Answer:

You are correct! :)

Extra tip:

It can also be written like 'C = 2πr' and that works just as well!

Answer:

circumference=2πr formula 2×22/7×r

What was one benefit of New Orleans's location?
O It was viewed as the perfect spot for trade.
O It was free from weather issues such as flooding.
O It was close to other colonies' political centers.
O It was easy to defend due to its high elevation.


Pls HURRY IM TIMED I REALLY NEED THE ANSWER!!

Answers

Answer:

it was viewed as the perfecto spot for trade

Answer:

a

Step-by-step explanation:

a. If the average ticket price is $15
for a Chesapeake Bayhawks
game, what function T(x) shows
how the income from ticket sales
depends on the attendance at
each game?

Answers

Answer:

He had been in a hospital with friends since his birth

1/4 divided by 8
PLEASE HELP
This is also in fractions my other ones got ban because I wasn’t obvious so here
PLEASE HELP IS NEEDED

Answers

Answer:

1/2

Step-by-step explanation:

Answer:

0.03125

Step-by-step explanation:

just put in the calculator (1/4)/8 and your answer should be 0.03125!! hope I helped you!!!! :)

I'm also stuck on this one! Help!

Answers

Answer:

a = 58

Step-by-step explanation:

90-32=58

HOPE THIS HELPS :)

Help please I need to find x and y

Answers

Answer:

[tex]x=6\\y=12[/tex]

Step-by-step explanation:

To find the value of x you can use sin rule

[tex]sin(60)=\frac{oppoaite}{hypotenuse}\\\frac{\sqrt{3} }{2} =\frac{x}{4\sqrt{3} } \\[/tex]

Use cross multiplication

[tex]4*\sqrt{3} *\sqrt{3} =2x\\4*3=2x\\12=2x\\\frac{12}{2} =\frac{2x}{2} \\6 =x[/tex]

To find the value of y you have to use sin rule again

[tex]sin(30)=\frac{opposite}{hypotenuse}\\\frac{1}{2} =\frac{x}{y} \\\frac{1}{2} =\frac{6}{y} \\[/tex]

Use cross multiplication

[tex]y=6*2\\y=12[/tex]

Hope this helps you.

Let me know if you have any other questions :-)

Hey, so I got
x = 5.9 units (just round it to 6)
y= 11.8 units (round it to 12)

Steps:

1) Use Soh Cah Toa to identify the unknown sides.

The side across the angle is the opposite. Therefore, the x side is opposite.
4√5 = 6.9 ( this side is the hypotenuse).
So we have the opposite side and the hypotenuse side. Therefore, we will use sine

2) Sin theta = opp/hyp
Sin 60 = opp/6.9

Multiply both sides by 6.9

6.9(sin60) = opp
5.9 = opp

3) now that you have side x, we will use x to figure out side y.

Identify the sides first. Side x is opposite and side y is the hypotenuse. Use sine to solve for side y

Sin theta = opp/hyp
Sin 30 = 5.9/hyp
0.5 = 5.9/hyp

Divide 0.5 and bring it over to the other side.

= 5.9/ hyp ÷ 0.5/1
= 5.9/hyp x 1/0.5
= 5.9/0.5
= 11.8 units (side Y)

What's the slope of this line?

Answers

my bad i read it wrong hold up

The slope should be -4/3

Simplify by dividing

Answers

Answer:

the first one ⇒ -27/20

Step-by-step explanation:

hope this helps :)

Answer:

-27/20

Step-by-step explanation:

Step 1: Flip the division symbol into a multiplication symbol, and flip the fraction -4/9.

[tex]\frac{3}{5}/(-\frac{4}{9}[/tex] [tex]\frac{3}{5} * (-\frac{9}{4})[/tex]

Step 2: Multiply.

[tex]\frac{3}{5} * -\frac{9}{4}[/tex] [tex]\frac{3*(-9)}{5*4}[/tex] [tex]\frac{-27}{20}[/tex] [tex]-\frac{27}{20}[/tex]  

Therefore, the answer is -27/20.

Last oneeeee HELPPP

Answers

76y = 19

Divide both sides by 76

y = 19/76

Simplify 19/76 by dividing by the GCF of 19 and 76, which is 19. 76 divided by 19 is 4.

y = 1/4

Hope this helps!! :)

If AABC = APQR, then
AC = [?]
Enter

Answers

AC will be equal to PR
AC=APQR
———
AB
In other words APQR over AB (divided)
Bc you need to get the a and b to the other side so it leaves a and c so you must divide by a and b from both sides
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