Mathematics High School

If a = -9 and b = 4, what is the value of a + b ?
A. -5
B. 5
C. -13
D. 13

Answers

Answer 1

Answer:

A. -5

Step-by-step explanation:

-9 + 4 = -5

hope this helps

Related Questions

What is the slope of y=-x+7y?

Answers

Answer:

The slope of y=-x+7y is m = - 1.

Step-by-step explanation:

y = m x + c

The intercept is (0,7) | constant term.

The slope is m=1/6.

Which of the following shows 2/25 is written as a percent?
2%
8%
12%
25%

Answers

8% is the correct answer!

Answer:

8%

Step-by-step explanation:

2/25*100

=8%

Add, subtract, multiply, or divide. Can someone help me please.​

Answers

Number 7 is subtract

7:  8+（-4）=-2

8:  -7+2=-5

9:  -11-7=-18

10:  12÷（-6）=-2

11:   -9×（-3）=27

12:  4-（-3）=7

13:  -45÷9=-5

14:   6×（-3）=-18

Which of these graphs represents a function?

Answers

Answer:

Graph x

Step-by-step explanation:

X because of the line test

Anna is testing different weights of certain things. The bucket she is holding that is full of water weighs 5lbs. Anna weighs herself and she is 97 pounds. She then drinks all of the water out of the bucket and then weighs herself again. Now she weighs 104 pounds. If the bucket of water she held was only 5 pounds, how did Anna gain 7 pounds from drinking the water out of it?


__________________________________________________

Answers

Answer:

Anna drank the water and holding the bucket, which weights 2 pounds, so:

97 + 5 + 2 = 104 pounds

Answer:

104 lbs.

Step-by-step explanation:

Anna's self  weight     = 97

Anna drank the water = 5

bucket weights            = 2      

                        total     = 104 lbs.

a) Caesar, a leader of Rome, was born in 25 B.C.E. (before the year 0) and died in the
year 44. How old was he when he died?

Answers

Answer:

55

Step-by-step explanation:

hshshshhdhshshhshshsjjs

PLEASE ANSWER NUMBER 2 3 AND 4 THANK YOU

Answers

i can’t really see it. take another pic please

Can somebody help with Grade7math ? It’s like about dividing integers...

Answers

Answer:

I would but I suck at math.

Step-by-step explanation:

I'll help you out with the giver later. lol

X varies directly as the cube root of y .x=6when y=8.Find the value of x when y=64.

Answers

Answer:

The value of x is 12.

Step-by-step explanation:

Given that x is directly proportional to y so the expression will be x = k (³√y) where k is the constant. First, you have to find the value of k :

[tex]x = k \: (\sqrt[3]{y} )[/tex]

[tex]let \: x = 6,y = 8[/tex]

[tex]6 = k \: (\sqrt[3]{8} )[/tex]

[tex]6 = k(2)[/tex]

[tex]k = 3[/tex]

Next, you have to find the value of x, by substituting y = 64 into the expression :

[tex]x = 3 \: ( \sqrt[3]{y} )[/tex]

[tex]x = 3( \sqrt[3]{64} )[/tex]

[tex]x = 3(4)[/tex]

[tex]x = 12[/tex]

Given that ( x – 3 ) is a factor of the polynomial x3 + 2x2 – 11x - 12, complete the following:

a) Completely factor the polynomial using polynomial long division or synthetic polynomial division. You must show all your work to receive credit. (7 pts)

b) What are the zeros of the polynomial? Show any work necessary in solving.

Answers

Answer:

(x+3)⋅(x−1)⋅(x−4)

Step-by-step explanation:

hope this helps

Which statement correctly describes the location of the incenter of a triangle?
Question 15 options:

A)

The incenter is equidistant from all three vertices of the triangle.

B)

The incenter is equidistant from all three sides of the triangle.

C)

The incenter is closest to the shortest side of the triangle.

D)

The incenter is closest to the longest side of the triangle.

Answers

9514 1404 393

Answer:

  B)  The incenter is equidistant from all three sides of the triangle.

Step-by-step explanation:

The incenter is the center of the inscribed circle, which is tangent to all three sides. Hence, the distance from the incenter to each side is the radius of the circle. The incenter is equidistant from the sides of the triangle.

Find the value of x. *


Please help me.

Answers

Answer:

x=50

Step-by-step explanation

The two angles add up to 180, so 2x+4+76 = 180

2x+80=180

2x=100

x=50

The price of an item has been reduced by 15% the original price was $73

Answers

Answer:

$62.05 is the new price

the reduced price is $10.95

Step-by-step explanation:

73*.85=62.05

How much times longer is Jupiter’s orbit than earth’s orbit?

Answers

Answer:

Jupiter's orbit is 5 times longer than earths

Step-by-step explanation:

Alexa has $60 already saved and her sister Susan has $120 already saved. Alexa is saving $7 per week and her sister is saving $5 per week. How long will it be before Alexa and her sister have the same amount of money? Write an equation and solve.
Step 1: Define your variable

Step 2: Write an equation.

Step 3: Solve your equation.

Step 4: Check your solution.

Step 5: Write a summary statement explaining your solution in the context of the problem..
Plz help mee

Answers

Step 1:

The variable is the number of weeks needed to equalize Alexa and her sisters savings.

Step 2:

7x + 60 = 5x + 120

Step 3:

7x+60=5x+120

Subtract 60 from both sides.

7x+(60-60)=5x+(120-60)

7x=5x+60

Subtract 5x from both sides

7x-5x=5x+60-5x

2x=60

Divide both sides by 2.

2x/2 = 60/2

x=30

Step 4:

7(30) + 60 = 5(30)+ 120

210+60=150+120

270 = 270

Step 5:

To find the unknown amount of weeks, you need to rewrite the equation isolate x on the left-hand side of the equation. I just subtracting/simplified the equation until I could solve it.

(tbh got stuck on this one)

Dan made $5.38 for a half hour of work. At Dan's current rate of pay, how much would Dan make for 8 hours of work?

WILL RECIEVE ANYTHING YOU WOULD LIKE

Answers

Answer:

107.6

Step-by-step explanation:

5.38 is how much is made in half an hour so I multiplied that by 2 to get the complete hour then multiplied that by 8

Answer: I am pretty sure it’s 87.08

Step-by-step explanation:

2 1/2 + 3 5/8

Add the fractions

Answers

Answer:

This equals 6 1/8

Step-by-step explanation:

Hope it helps!

Answer:

6 1/8

2 1/2 becomes 5/2 then you multiply the numerator and denominator by 4

after that it becomes 20/8 than you make 3 5/8 into 29/8 and add them together which makes 49/8 but when you simplify it becomes 6 1/8

Find the midpoint of the segment with the following endpoints.
(7, -2) (1, -10)

Answers

Answer:

(4, -6)

Step-by-step explanation:

The formula of a midpoint of the segment AB:

[tex]M_{AB}\left(\dfrac{x_A+x_B}{2};\ \dfrac{y_A+y_B}{2}\right)[/tex]

We have A(7, -2) and B(1, -10). Substitute:

[tex]M_{AB}\left(\dfrac{7+1}{2};\ \dfrac{-2+(-10)}{2}\right)\\\\M_{AB}\left(\dfrac{8}{2};\ \dfrac{-12}{2}\right)\\\\M_{AB}(4;\ -6)[/tex]

Midpoint = average of x and y
(7+1)/2 x value = 4
(-2+ -10)/2 y value = -6
Midpoint (4, -6)

Find the value of y.

Answers

Answer:

y = -1

Step-by-step explanation:

It´s an equilateral triangle

then:

2y + 6 = 4

2y = 4 - 6

2y = -2

y = -2/2

y = -1

Check:

2*-1  + 6 = 4

-2 + 6 = 4

Tarek will spend at most $31 on gifts. So far, he has spent $16. What are the possible additional amounts he will spend?
Use c for the additional amount (in dollars) Tarek will spend.
Write your answer as an inequality solved for c.

Answers

Answer:

c<$15

Step-by-step explanation:

$31-$16>c

$15>c

c<$15

Noah bought x apples, and Elena bought 1/4 more
apples. Write an expression for the number of apples
Elena bought.

Answers

Answer:

y = 0.75x

Step-by-step explanation:

Im not sure lmk

helppppppppppppppppppppppppppp meeeeeeeeee plzzzzzzzzzzzzzzzz

Answers

Answer:

thr answer is 6(2n-3) this is rhe answer

What is the value of the expression - 13 x (-1.6)?​

Answers

Answer:

20.8

Step-by-step explanation:

penny reads 10 pages in 1/2
hour. What is the unit rate for pages per​ hour? For hours per​ page?

Answers

Answer:

she would read 20 pages in 1 whole hour

(this is english but more people are on math i think) what are two ways to introduce textual evidence??

Answers

[tex]I\;would\;say\;one\;way\;do\;it\;is\;like\;this...\\\\"He's\;not\;very\;brave\;after\;all"\;\;(Page\;12)\\\\Another\;way\;to\;do\;it\;is\;like\;this...\\\\According\;to\;the\;authour\;the\;man\;couldn't\;face\;his\;fear\;of\;heights. \;\;(Pg\;13)[/tex]

guys i need help. who is right in this problem???

Answers

Answer:

brianna is correct

Step-by-step explanation:

Answer:

Brianna is correct for Card number 2.

Step-by-step explanation:

CAN SOMEONE GIVE ME THE STEPS I HAVE THE ANSWERS I JUST NEED THE STEPS

Answers

Problem 1:

1) 3/5x-1 x 3/4=9/10

3x/5-1 x 3/4=9/10

2) 3x/5-1 x 3/4=9/10

3x/5-3/4=9/10

3) 3x/5-3/4=9/10

+3/4 +3/4

4) 3x/5=33/20

5) 5 x 3x/5= 5 x (33/20)

6) 3x=33/4

7) 3x=33/4

/3 /3

8) x=11/4

Problem 2:

1) 6/7+2/5x=-4/5

6/7+2x/5=-4/5

2) 6/7+2x/5=-4/5

-6/7 -6/7

3) 2x/5= --58/35

4) 5 x 2x/5= 5 x (--58/35)

5) 2x= --58/7

6) 2x= --58/7

/2 /2

x= --29/7

What is the slope and y-intercept of y=2x+3 and why?

Answers

The slope is 2 and the y intercept is 3 m = 3 and b = 2x

2. Function C takes time for its input and gives a student's Monday class for its output.
a. Use function notation to represent: A student has English at 10:00.
b. Write a statement to describe the meaning of C(11:15) = chemistry.

Answers

Answer:

We know that C(T) is a function where you input the time T, and the output will be the student's Monday class.

a) A student has English at 10:00.

Here we can use T = 10:00 as the input, and the output will be the class, English.

Then this can represent this with:

C(10:00) = English.

b) Write a statement to describe the meaning of C(11:15) = chemistry.

for C(11:15) = Chemistry

The input, the time, is 11:15

The output, the class, is chemistry.

The student has a chemistry class at 11:15

QUICK I REALLY NEED HELP

When playing a game, Noahs last 5 points in the last 3 turns. show how to use integers to determine the change in his score​

Answers

Answer:

-5

Step-by-step explanation: Yeah i think its -5

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