Mathematics College

Find x
3x + 7 = -5

Pls help

Answers

Answer 1

Answer:

your answer should be

Step-by-step explanation:

x=2i or like i should say -2i

i hope its right tbh sometimes i make mistakes doing these

Related Questions

could someone help me please?

Answers

Answer:

62

Step-by-step explanation:

The total amount of money (in cents) in x dimes, (x+2) nickels, and 2x quarters. The total amount of money is ____ cents. (Hint: value of a dime is 10 cents, nickel is 5 cents, and a quarter is 25 cents.)

Answers

The total amount of money is 65x + 10 cents.

Sum of coins

Given the following coins value

x dimes, (x+2) nickels, and 2x quarters

If value of a dime is 10 cents, nickel is 5 cents, and a quarter is 25 cent, the the total coin is cent is expressed as 10x + 5(x + 2) + 25(2x)

Total in cents. = 10x + 5(x + 2) + 25(2x)

Total in cents = 10x + 5x + 10 + 50x

Simplify

Total in cents = 65x + 10

Hence the total amount of money is 65x + 10 cents.

Learn more on cents to dimes here: https://brainly.com/question/6810598

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Tell whether z = 64 is a solution of z: 8=8.
Yes Or no

Answers

Answer:

Yes

Step-by-step explanation:

I think so...idk

8×8=64 thats why I said yes

8 + 2 ( x - 6 ) = -2 + 2x - 2

Answers

Answer:

x = infinite amount of solutions

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define Equation

8 + 2(x - 6) = -2 + 2x - 2

Step 2: Solve for x

Distribute 2:                         8 + 2x - 12 = -2 + 2x - 2Combine like terms:            2x - 4 = 2x - 4Add 4 on both sides:           2x = 2xDivide 2 on both sides:       x = x

Here we see that x does indeed equal x.

∴ x = infinite amount of solutions.

Pls help I’m going to get in trouble if I don’t finish this test
I will mark you as brainlist

Answers

Answer:

what are some of the answers? I think the answer could be for 1 plant there is 5 Rose's. put I'm not 100 percent sure what the question is asking

Jana received $5 a week for her allowance. Every other week she earns an extra $4 for babysitting her cousins. If she saves all the money she much will she have in 8 weeks?

A $19

B $28

C $33

D $56

Answers

It’s D hope that helps?

Help! Giving brainliest please show your work

Answers

Answer:

1) 13/20

2) 100

3) 2^6

Find the probability below in the picture. (the answer isn't 14/4)

Answers

It’s
8/14 simplified is
4/7 which is also
.571

Which of the following is a universal quantifier?

A)At least one
B)few
C)some
D)all

Answers

Answer:

c

Step-by-step explanation:

the answer is c) somae

C is going to be your answer

Evaluate: 2/3 + 5/8 + 1/4

Answers

Answer: 1.54166666667 Hope that helped

How do you this .. I don’t know how to do it

Answers

I would help but your missing parts of the problem

Consider the function represented by the table.
What is f(0) ?

Answers

Your answer would be 6
I don’t see the table ?

Use a unit rate to find the unknown value to 10/?=6/3

Answers

Answer:

?=5

Step-by-step explanation:

6/3=2

10/2=5

What are the coordinates of the origin?
(1,1)
(0,0)
(-1,1)
(1,-1)

Answers

Answer:

(0,0)

Step-by-step explanation:

Answer:

0,0 because that’s were it starts at

Step-by-step explanation:

Can i get brainiest think

Find the GCF (greatest common factor) of 8 and 7.

Answers

Answer: Its 1

Step-by-step explanation:

Identify the slope as positive, negative, zero or undefined from each graph.
What’s this answer

Answers

Answer:

1-positive

2-negitive

3-zero

4-undefined

Answer:

1 ) positive 2) negative 3) undefined 4) undefined

Step-by-step explanation:

0/12
Correct
Mark is investing his money. He thinks that he should make $11 for every $100 he invests. How much does he expect to make on an investment of $3300?

Answers

Money Mark makes for $3300, he invested = $363

The unitary approach is a strategy for problem-solving that involves first determining the value of a single unit, then multiplying that value to determine the required value.

It's given that Mark is investing his money. He thinks that he should make $11 for every $100 he invests.

Now by using the basic unitary method we can solve the problem as :

Money Mark makes for every $100 he makes = $11

Money Mark makes for every $1 he invested  = $ 11 / 100 = $0.11

Money Mark makes for $3300 he invested = 0.11 x 3300 = $363

Therefore, money Mark makes for $3300, he invested = $363

To know more about Unitary Method, refer to this link :

https://brainly.com/question/23423168

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Twice the difference of p and 10 I need a answer for my hw plz

Answers

Answer:

2(p - 10)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Step-by-step explanation:

Step 1: Translate

"Twice" is multiplied by 2.

"Difference" is subtraction.

"p" is p.

"10" is 10.

Step 2: Write expression

2(p - 10)

2p - 20

Based on the mortality table below, what is the probability that a 23-year-old
will be alive in 1 year?

Answers

Answer:

99.897%

Step-by-step explanation:

Answer: 99.87%

Step-by-step explanation:

Is 6dd same answer as 4d+2d

Answers

Answer:

[tex]6d \: is \: same \: as \: 4d + 2d[/tex]

Step-by-step explanation:

[tex]4d + 2d = 6d \\ pls \: mark \: as \: brainliest[/tex]

answer quick please I dont really get this

Answers

Answer:

f(9) = 24

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = 4(x - 3)

f(9) is x = 9

Step 2: Evaluate

Substitute in x:                    f(9) = 4(9 - 3)Subtract:                              f(9) = 4(6)Multiply:                               f(9) = 24

what is the answer to this 2²/2³​

Answers

Answer:

.5

Step-by-step explanation:

22

23

=

22

23

=

2*2

2*2*2

=

1

2

(Decimal: 0.5)

Answer: 1/2 or 0.5

Steps:

First, find the quotient.

• Remember when dividing the same bases with different exponents, you subtract the exponents and keep the base.

They both have a base of 2 so subtract the exponents.

2-3= -1

= 2^-1

Next, use properties of exponents to eliminate the negative exponent.

2^-1 = 1/2^1

= 1/2

5. A bag contains 3 yellow marbles, 4 green marbles, 6 purple marbles, and 2 orange marbles. If a marble is drawn from a bag, what is the probability that it is green? A) 1/15 B) 4/15 C) 1/4 D) 6/15​

Answers

Answer:

B) 4/15

Step-by-step explanation:

green marbles: 4

total marbles: 15

probability

4/15

The answer is C I believe

A survey asks a random sample of 1500 adults in Ohio if they support an increase in the state sales tax from 5% to 6%, with the additional revenue going to education. Let ^ p denote the proportion in the sample who say they support the increase. Suppose that 13% of all adults in Ohio support the increase. The standard deviation of the sampling distribution is

Answers

Answer:

The standard deviation of the sampling distribution is [tex]\sigma =0.0087[/tex]

Step-by-step explanation:

From the question we are told that

     The sample size is  n =  1500

     The population proportion is  [tex]p = 0.013[/tex]

Generally the standard deviation of this sampling distribution is mathematically represented as

      [tex]\sigma = \sqrt{ \frac{p (1- p)}{ n} }[/tex]

=>     [tex]\sigma = \sqrt{\frac{0.13(1-0.13)}{1500} }[/tex]

=>   [tex]\sigma =0.0087[/tex]

     

The standard deviation of the considered sampling distribution of the proportion supporting the increase is 0.0027 approx.

How to find the sample standard deviation for distribution of a sample proportion?

Suppose the sample proportion be denoted by [tex]\hat{p}[/tex], then, its distribution is normally distributed with mean [tex]p[/tex] and the standard deviation of distribution of [tex]\hat{p}[/tex] is given by

 [tex]\sigma = \sqrt{\dfrac{p(1-p)}{n}}[/tex]

where n is the sample size. It is true until [tex]np \geq 10[/tex] and [tex]n(1-p) \geq 10[/tex]

For the given case, we're given that:

Sample size=  n = 10Proportion average value = p = 13% = 0.13 Standard deviation = [tex]\sigma = \sqrt{\dfrac{0.13(1-0.13)}{1500}} = \sqrt{\dfrac{0.13 \times 0.87}{1500}} \approx 0.0027[/tex]

Thus, standard deviation of the sampling distribution is approximately 0.0027

Learn more about standard deviation of proportion distribution here:

https://brainly.com/question/16548769

You have sample data that leads you to believe that the average high temperature in Oklahoma City is 92°F.

What is the alternative hypothesis, Ha, for this situation?

Answers

Answer:

B - u>90 on edge

Answer:

B. µ > 90

Step-by-step explanation:

I can confirm that the answer to your question is B.

Factor the expression 12-8t

Answers

Answer:

factor 4 out of 12-8t

4(3-2t)

The weights of an orange in the bin at the grocery store vary normally with a mean of 10 oz. and a standard deviation of 2.5 oz. If you randomly pick two oranges out of the bin, what is the probability that the difference in their weight is at least 1 oz?
a) 0.421
b) 0.389
c) 0.778
d) 0.135
e) 0.842

Answers

Answer:

e) 0.842

Step-by-step explanation:

the temperature was 20 degrees below 0 at midnight. By morning it fell another 15 degrees. choose the correct expression

A. 20-15
B. -20+(-15)
C. -20+15​

Answers

Answer:

C

Step-by-step explanation:

-20 + 15 = -35

a negative + a positive = a negative

Hope this helps!

In a sample of 14 CEOs, they spent an average of 12.9 hours each week looking into new product opportunities with a standard deviation of 4.9 hours. Find the 95% confidence interval.a. (10.3, 15.5)b. (8.0, 17.8)c. (10.1, 15.7)d. (9.9, 15.9)

Answers

Answer:

c. (10.1, 15.7)

Step-by-step explanation:

The calculation of the 95% confidence interval is shown below:

Given that

n = sample = 14

average = [tex]\bar x[/tex] = 12.9

Standard deviation = s = 4.9

Based on the above information

[tex]\alpha = 1 -0.95 = 0.05[/tex]

n - 1 = 14 - 1 = 13

[tex]t_{\alpha}\ value = 2.16[/tex]

Now the 95% confidence interval is

[tex]= \bar x + \pm\ t \times \frac{s}{\sqrt{n} } \\\\= 12.9 \pm 2.16 \times \frac{4.9}{\sqrt{14} } \\\\= 12.9 \pm 2.8287[/tex]

= (10.1, 15.7)

hence, the correct option is c.


ILL GIVE BRAINLIST HELP ASPA

Answers

the 3 D'E=3DE i think that is the correct answer

What the other person said
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