Mathematics College

What is the value of x in the equation 4(-5 + x) = -4?

Answers

Answer 1

Answer:

x=4

Step-by-step explanation:

First, simplify:

-20 +4x =-4

Then, solve

4x=16

x=4

Answer 2

Answer:

The value of x would be 4.

Related Questions

what is 6/11 - 9/2

Answers

Answer:

3 and 21/22

Step-by-step explanation:

You convert the fractions so they have the same number as the denominator and then subtract them.

What is the right answer

Answers

Answer:

The complement of 44° is the angle that when added to 44° forms a right angle ( 90° ). Subtract 44 from 90.

Step-by-step explanation:

the person above me got it right

One method for straightening wire before coiling it to make a spring is called "roller straightening." The article "The Effect of Roller and Spinner Wire Straightening on Coiling Performance and Wire Properties" (Springs, 1987: 27–28) reports on the tensile properties of wire. Suppose a sample of 16 wires is selected and each is tested to determine tensile strength (N/mm2 ). The resulting sample mean and standard deviation are 2160 and 30, respectively. a. The mean tensile strength for springs made using spinner straightening is 2150 N/mm2 . What hypotheses should be tested to determine whether the mean tensile strength for the roller method exceeds 2150? b. Assuming that the tensile strength distribution is approximately normal, what test statistic would you use to test the hypotheses in part (a)? c. What is the value of the test statistic for this data? d. What is the P-value for the value of the test statistic computed in part (c)? e. For a level .05 test, what conclusion would you reach?

Answers

Answer:

We accept H₀, we don´t have enough evidence to claim that the procedure improves the tensile strength above the peviuos average

Step-by-step explanation:

Information:

μ = 2150

Sample size n = 16

Sample mean x = 2160

Sample standard deviation s = 30

a) Test Hypothesis

Null Hypothesis H₀ x = μ

Alternative Hypothesis Hₐ x > μ

b) If Tensile strength is approximately normal distribution we should use t-student statistic for testing the above hypothesis.

t(s) = ?? with df = n - 1 df = 15

c) t(s) = ( x - μ ) / s/√n

t(s) = ( 2160 - 2150 ) / 30/√16

t(s) = 10*4 / 30

t(s) = 1,33

d) In t-student we look for p-vale for 1,33 and df = 15

p-value = 0,1

e) If the level of significance is 0,05, then α/2 = 0,025

we compare p-value and level of significance

p-value 0,1 > 0,025

Then p-value is bigger than the significance level, we should accept H₀

plz help!!!!!!!!!!!!!

Answers

Answer: The Answer is 15

Step-by-step explanation:

It’s 15 I think but just tell me if it’s wrong and I’ll correct myself

Quadrilaterals:
Find the value of x in the figure below:

Answers

Answer:

118°

Step-by-step explanation:

The sum of the interior angles of a pentagon is 540

122+98+99+103= 422

540-422= 118

1. It takes one week for a crew of workers to pave 35 kilometer of a road. At that rate, how long will it take to pave 1 kilometer?

Write a multiplication equation and a division equation that represent the question and then answer the question.

Answers

Answer:

5/3

Step-by-step explanation:

Solving the following simultaneous equations, 4x - 5y = 17 and x - 5y = 8,

Answers

{4x - 5y = 17

{x - 5y = 8

{x = 5y + 8

{4(5y + 8) - 5y = 17

{x = 5y + 8

{20y + 32 - 5y = 17 | - 32

{x = 5y + 8

{15y = -15 | : 15

{y = -1

{x = 5 * (-1) + 8

{x = 3

{y = -1

find the value of X round to the nearest 10th

Answers

Answer:

x ≈ 80.4

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan15° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{x}{300}[/tex] ( multiply both sides by 300 )

300 × tan15° = x , then

x ≈ 80.4 ( to the nearest tenth )

Please help.
You will get brainliest.

Answers

Answer:

number 3 if not 3 than ldk

What do you know about expressions and equations? What are some examples of expressions and equations? Have you ever thought about what you should do if you don’t know a certain value? Give an example of how you think you should handle that type of situation.

Answers

Answer:

Answer: An equations is a number, a variable, or a combination of numbers and variables and operational symbols. An equation is made up of two expressions connected by an equal sign.

Example Expression: 8x+5y-3x-5

Example Equation: 5x-4=x

Step-by-step explanation:

Find the area 5 3/4 x 9 3/4

Answers

Answer:

56.0625

Step-by-step explanation:

5 3/4x 9 3/4=56.0625

Answer:

Area = 7 km x 5 km = 35 km2 ... by either an addition, subtraction, or some other combination of operations to find the required area. ... ½ x base x height ½ x 9 x 4 = 18. Area of rectangle part: width x height 9 x 6 = 54.

Step-by-step explanation:

At Ralphs Italian Ices, 145 sundaes were sold in June. Sales were up 23% in July, How many sundaes were sold in July?

Answers

178 sundaes were sold in July.

To calculate a percentage, we convert to a decimal by dividing by 100. So 23% = 0.23

145 x 0.23 = 33.35 This is how many more sundaes were sold in July than June. We need to add the 145 sold in June to the increased number to find July’s total.
145 + 33.35 = 178.35

You can’t sell .035/ roughly a third of a sundae, so we round to the whole number.

What are three basic states of matter

Answers

Answer:

Step-by-step explanation:

Here:

SolidLiquidgas

Christopher is taking a multiple choice test with a total of 100 points available. Each question is worth exactly 2 points. What would be Christopher's test score (out of 100) if he got 10 questions wrong? What would be his score if he got xx questions wrong?

Answers

Answer:

If im not wrong, if every question is 2 points of 100 points in total means that are 50 questions, so if he gets 10 wrong then he would be losing 20 points which his final grade would be 80!

Answer:

Score with 10 questions wrong: 80

Score with x questions wrong: 100−2x

Step-by-step explanation:

each point is deducted by 2 pts and so, with 10 question, he got an 80.

100 is the availability of the points and 2x means which the points were lost

guys please help I need the answer right now

Answers

11, 13, 15 Rule: Add 2 or +2
1/6, 1/7, 1/8 Rule: Add

Adding by 2- 3,5,7,9,11,13,15 etc
Adding by 1 to denominator
1/2,1/3, 1/4 , 1/5 , 1/6, 1/7

12345 :- 987 me pueden ayudar con esta division

Answers

12.50 espero que te sirva :)

Yare Yare daza

ORAORAORAORAORAORAORAORA!!!!!

Answers

Answer:

Wonderfully put, bravo

Step-by-step explanation:

Answer:

(jotaro) "yare yare daze"

Step-by-step explanation:

(star platinum)

"ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORA

yare yare

ORA ORA ORA ORA ORA ORA ORAORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA

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State the quadrant or axis the point lies in (9, -10)

Answers

Quadrant is 4. Because y is negative means down and y is positive only to right.

What are the next 3 terms in this sequence of terms? 12, 18, 24, 30

Answers

yeah like jackson said, it's 36, 42, and 48 b/c the pattern is +6

12+6=18
18+6=24
24+6=30
30+6=36
36+6=42
42+6=48

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Answers

Answer:

C or A

But I pick A

Step-by-step explanation:

Answer:

best option is A

Step-by-step explanation:

5) Abhasra invests $7,053 in a savings
account with a fixed annual interest rate of
3% compounded quarterly. What
will the account balance be after 4 years?

Answers

Answer:

After 4 years the account balance will be $ 7,948.67.

Step-by-step explanation:

Given that Abhasra invests $ 7,053 in a savings account with a fixed annual interest rate of 3% compounded quarterly, to determine what the account balance will be after 4 years, the following calculation must be performed:

7.053 x (1 + 0.03 / 4) ^ 4x4 = X

7,053 x 1.0075 ^ 16 = X

7.053 x 1.12699211 = X

7,948.67 = X

Therefore, after 4 years the account balance will be $ 7,948.67.

A bean plant grew 1 1/2 inches per day. How much did the plant grow in 9 days?

Answers

Answer:

108 Inches

Step-by-step explanation

9 * 12 = 108

Answer:

108

Step-by-step explanation:

9*12=108 is the answer

Which expressions are difference of squares?

Select all correct answers.

y^6 + 25

x^2 − y^2

x^4 − 36

y + 16

Answers

Answer:

x² - y² and x^4 - 36

Step-by-step explanation:

(x + y)(x - y)

(x² + 6)(x² - 6)

A company makes wax candles in the shape of a cylinder. Each candle has a radius of 3 inches and a height of 2 inches. How much wax will the company need to make 270 candles?
Use 3.14 for pie and do not round your answer.

Answers

Answer:

[tex] 15,260.4 \: {in}^{3} [/tex]

Step-by-step explanation:

Radius of candle = 3 inches

Height of candle = 2 inches

Wax needed to make one candle = Volume of one cylindrical candle

[tex] =\pi r^2 h[/tex]

[tex] =3.14(3)^2 (2)[/tex]

[tex] =56.52\: in^3 [/tex]

Volume of wax needed to make 270 candles

[tex] = 270 \times wax\: needed \: to\:make \: one \: candle \\ \\ = 270 \times 56.52 \\ \\ = 15,260.4 \: {in}^{3} [/tex]

Help me i need help pls

Answers

Answer:

x-variable

5x-term

5-coefficient

12-constant

Answer:

Dababy A baby. (=

Please help i need to get these right or i fail WILL GIVE BRAINLEST!!!

Answers

Answer:

Give brainly to other guy

Step-by-step explanation:he deserves it

Adult tickets to the ice-skating show cost
$34 each plus a $2 handling fee for each
ticket. Senior Tours purchased 87 adult
tickets. How much money did the tour
company pay for the tickets and handling
fees?
A $2,960
B $4,783
C $3,132
D $2,958

Answers

Is b I already did that question like a lot of times is so easy trust me is b

HELP please with this

Answers

Answer:

CB = 9

Step-by-step explanation:

To find CB, apply trigonometric function.

Reference angle = 60°

Hypotenuse = 18

Adjacent = CB

Apply CAH:

Cos 60 = Adj/Hyp

Cos 60 = CB/18

Cos 60 × 18 = CB

CB = Cos 60 × 18

CB = 9

The number of watermelon seeds in the original watermelon is 500. The second watermelon has 5% more. How many seeds are in the second watermelon?

Answers

Answer:

Step-by-step explanation:

500seeds+25seeds=525seeds

Answer:

520 watermelon

Step-by-step explanation:

hope you have a good day good luck hope you will understand too

Mixture Temperature (°C)
Mixture 1
3
Mixture 2
-4
Mixture 3
-1
Mixture 4
2.
In science class, Emma is measuring the temperature of different chemical mixtures. The temperatures of four
mixtures are shown in the table. Which mixture's temperature is closest to zero?

Answers

Answer:

Step-by-step explanation:

sheeesh 3 easy

Other Questions

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