Mathematics College

Evaluate each expression
1.
3 – 4x
x = -3

Answers

Answer 1

Answer:

9

Step-by-step explanation:

Related Questions

in 2017, the price of a Forever stamp from the United States Postal Service was $0.49. How many Forever stamps could be purchased for $30.38?

Answers

62 stamps
explanation: 30.38/.49=62

1 1/3 divided by 3/4

Answers

Answer:

1 7/9

Step-by-step explanation:

Could i have branliest please and a heart

Step-by-step explanation:

11/ 36

hope it helps!

.....

write an equation of the line that passes through 4,-2 and is parallel to y=-4x+1

Answers

Answer:

y=-4x+14

Step-by-step explanation:

A parallel line must always have the same slope, so it must be -4x, and on a graph y=-4x+14 passes through the point (4,-2)

Goodd Luck!
llllllllllaa

Answers

the positive integers are: +2, +11, +8, 28, and 13
the negative integers are: -7, -9, -11, and -3
the 0 should go in the circle between the two charts

Answer:

Step-by-step explanation:

Positive integers = 2 5 8 11 13 28

Negative integers = - 3 - 7 - 9 - 11

The integer that's troubling her the most is 0 because zero is defined as neither positive nor negative

The first 5 terms of a sequence are shown below:
3, -2, -7, -12, -17
Which expression can be used to find the nth term?

Answers

Answer:

c: -7

Step-by-step explanation:

Jon's last paycheck was $342.58. If he worked
35.5 hours, how much does he get paid per hour?

I need the answer to this question how much does he get paid per hour?

Answers

$9.65 per hour jendndnej es

find x plsssssssssssssss

Answers

The angles are vertically opposite,

therefore,

9x + 22 + 130 = 180

9x + 152 = 180

9x = 180 - 152

9x = 28

[tex]x = \frac{28}{9} [/tex]

[tex]x = 3 \frac{1}{9} [/tex]

in general the value measured by the vertical axis is called the _____ variable​

Answers

Answer:

Dependent

Step-by-step explanation:

in general the value measured by the vertical axis is called the DEPENDENT variable.

I think the answer is dependent

this is for fun type as many Christmas songs as you can below my fav will get brainiest you will get 10 points as well.

Answers

Answer:

"as many Christmas songs as you can below my fav will get brainliest you will get 10 points as well."

Step-by-step explanation:

I typed it.

Answer: um all I want for Christmas and jingle bells.

Step-by-step explanation: make me brainest

please help me i’m so confused

Answers

I think it’s between Graph D and Graph C

I think it’s D. I could be wrong though

What is the slope of the graph of
4x + 3y = 15?

Answers

Answer:

-4/3

Step-by-step explanation:

y=mx+b

3y=-4x+15

y= -4/3 x +5

m is slope b is y intercept

Find the measure of angle A.​

Answers

Answer:

60 degrees sorry if its wrong

Step-by-step explanation:

BRANDI WANTS TO CALCULATE THE AVERAGE SPEED
OF A CAR THAT TRAVELED 275 MILES IN THREE
HOURS. WHICH FORMULA BELOW IS CORRECT?
A. S = 3 x 275
B. S = 3/275
C. S = 275/3
D. S = 3-275
MISTER SCIENCE

Answers

Answer:

C. S = 275/3

Step-by-step explanation:

The formula for speed is S = d/t

The d is = 275

The t is = 3

So S = 275/3

Hope this helps ya!!

Use the normal distribution to approximate the following binomial distribution. A recent survey indicated that 55% of the people in a certain community own a motorcycle. If 35 people from this community are chosen at random, what is the probability that fewer than 23 own a motorcycle?

Answers

Answer:

0.86 (Approx)

Step-by-step explanation:

Given:

n = 35

P = 55% = 0.55

Q = 1 - p = 0.45

Computation:

Standard deviation σ = √npq

Standard deviation σ = √(35)(.55)(.45)

Standard deviation σ = 2.9432

Mean μ = np = 35 x 0.55 = 19.25

p[(x-np)/ σ ]

P[z<1.04204]

= 0.86 (Approx)

What is the predicted value of fuel efficiency (in miles per gallon) for a car with a 2.5 cubic liters engine? Round your answer to two decimals, if needed.

Answers

Answer:

25.92

Step-by-step explanation:

Fuel efficiency is the measure or effort that is required to convert the chemical energy in the fuel to the kinetic energy which the cars needs to move. It is meant by how good or effectively the fuel is utilized by the vehicle. It is the ability of the engine to extract more energy from the fuel.

In the context, the size of the engine is 2.5 cubic liters. Then the predicted value of the fuel efficiency will be 25.92 miles per gallon.

( Mathematical sentences can describe real-world problems. Note the following inequalities and real-world problems. Write either the inequality or real-world problem that corresponds to the given information. Do not simplify any inequalities.
(a) Real-World Problem: Toy cars cost c dollars. Stan had $3. He purchased 3 toy cars with his money. Frank had $6. He purchased 8 toy cars with his money. After their purchases, Stan had more money than Frank

Inequality:

(b) Inequality: 3x + 2 < 2x + 10

Real-World Problem: ​

Answers

Answer:

Mathematical sentences can describe real-world problems. Note the following inequalities and real-world problems. Write either the inequality or real-world problem that corresponds to the given information. Do not simplify any inequalities.

(a) Real-World Problem: Toy cars cost c dollars. Stan had $3. He purchased 3 toy cars with his money. Frank had $6. He purchased 8 toy cars with his money. After their purchases, Stan had more money than Frank

Inequality:

(b) Inequality: 3x + 2 < 2x + 10

Best Answer gets BRAINLIEST!!!

Answers

Answer:

3.5/1

Step-by-step explanation:

y/x

3.5/1

the shadow of a 100 m long vertical pole is of 20 m then what will be the angle of inclination round the answer to the nearest tenth of a degree​

Answers

Answer:54.23 m

Step-by-step explanation:I’m not sure this is even close to being right but I tried

The following rule describes the relationship between x and y.
Rule: Multiply x by 4 to get y.
Complete the table for the given rule.
X Y
0 __
1 __
2 __

Answers

Y
—
0
4
8
Hope this helps :)

How do I solve this?

Answers

Answer:

The answer is 7.5

Step-by-step explanation:

3x+18=9x−27

3x+18−9x=9x−27−9x

−6x+18=−27

−6x+18−18=−27−18

−6x=−45

−6x /−6 = −45 /−6

x =  15 /2  which is equal to 7.5 as a decimal.  

31.8 dived 0.58 answer

Answers

Answer:

54.8275862069

Step-by-step explanation:

If you want rounded than 54

20 Points!!! Lisa writes 15 pages of a research paper. If she has written 75% of her goal, what is the total number of pages that she wants to write?

Answers

Answer:

I believe that her goal is 20 pages because 75% of 20 is 15.

Step-by-step explanation:

Samira used the calculator to find 254.3 × 2.5. Which statement best describes her work? Samira is correct. Samira is incorrect. The calculator should not give an answer that includes a decimal point. Samira is incorrect. The correct answer should only be about twice as much as 254.3, and the number on the screen is much larger. Samira is incorrect. The answer on the screen is not large enough to be the correct answer.

Answers

Answer:

A samira is correct

Step-by-step explanation:

Because she did her own expression right, now she has to solve

Answer:

the answer is c

Step-by-step explanation:

I used a caculator

Which statement correctly compares -9 and 2?

Answers

Answer:

-9<2 is a correct comparison

2x + 6y - 3z + 5 - 11(4x - 8y) + 6z - 1

Answers

Answer:

-42x+94y+3z-4

Step-by-step explanation:

2x+6y-3z+5-44x+88y+6z-1

The simplified answer is -42x+94y+3z+4. Hope this helps! :)

I need help again please​

Answers

Answer:

I think it's the third one.

Answer:

C

Step-by-step explanation:

please help me with this please ​

Answers

First one is A
Second one is C
Third one is B
Trust me

Will mark the brainliest

Answers

The answer is c because it’s the opposite of the regular picture

Can you help me solve
-4x+y=6
-5x-y=21​

Answers

Answer:

x = -3, y = -6. (-3,-6)

Step-by-step explanation:

Betsy has to sell carnival tickets worth at least $60. The price of a child ticket is $5, and the price of an adult ticket is $8. Let x be the number of child tickets sold and y be the number of adult tickets sold. which of the following graphs best models this situation.

A) 5x+8y
[tex] \geqslant [/tex]
60
B) 5x+8y
[tex] \leqslant [/tex]
60
C) 5x+8y
[tex] < [/tex]
60
D) 5x+8y
[tex] > [/tex]
60​

Answers

Answer:

A) 5x + 8y [tex]\geq[/tex] 60

Step-by-step explanation:

"At least" translates to the inequality symbol [tex]\geq[/tex] or "greater than or equal to."

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