7th grade math help me plzzzzz

Answers

Answer 1

Answer:

An atom is the smallest building block of matter

A molecule consists of group of two or more atoms held together by chemical bonds from the same or different elements.

Related Questions

Which side lengths form a triangle that is similar to triangle ABC

Answers

Answer:

Step-by-step explanation:

Bc if you multiply every side by 3 you get the answer choices in answer A.

PLZ GIVE BRAINLIEST AND PUSH THANKS BUTTON IM IN A BET ABOUT WHOEVER WINS GETS $50

Side lengths form a triangle that is similar to triangle ABC are 30, 21, 45 and this can be determined by using the given data.

Given :

Triangle ABC.AB = 10AC = 15BC = 7

The following steps can be used in order to determine the side lengths form a triangle that is similar to triangle ABC:

Step 1 - First determine the ratio of the length of AB and AC.

[tex]\rm \dfrac{AB }{AC} = \dfrac{10}{15}[/tex] --- (1)

Step 2 - Now, determine the ratio of the length of AC and BC.

[tex]\rm \dfrac{AC }{BC} = \dfrac{15}{7}[/tex] --- (2)

Step 3 - Determine the ratio of the length of BC and AB.

[tex]\rm \dfrac{AB }{BC} = \dfrac{10}{7}[/tex] --- (3)

Step 4 - Now, check the ratio of the side lengths given in option A).

[tex]\dfrac{30}{21}=\dfrac{10}{7}[/tex] (Similar to expression 3)

[tex]\dfrac{45}{21}=\dfrac{15}{7}[/tex] (Similar to expression 2)

[tex]\dfrac{30}{45}=\dfrac{10}{15}[/tex] (Similar to expression 1)

Therefore, the correct option is A).

For more information, refer to the link given below:

https://brainly.com/question/10652623

Somebody please help me with this question, I couldn’t find any answers to it.

A = nr^2. find the value of A when n = 3.142 and r =5

Answers

Answer:

A = 78.55

Step-by-step explanation:

A = nr^2

substitute the n and r values

A = 3.142(5)^2

Use PEMDAS

Parenthesis Exponents Multiply Divide Add Subtract

so the first step is exponents

5^2 is 25

A = 3.142(25)

Multiply

A = 78.55

Make me brainliest plzz and thank you

Is Oregon a swing or a safe state?

Answers

Answer:

Oregon is a safe state

Step-by-step explanation:

this election it is also democratic

Simplify 12^2 . 12^3

Answers

if you're multiplying then the answer is 12^5

when multiplying you add exponents

2(5x−2)− 2x -2 =34
Solve for x

Answers

X equals five my guy

An EWMA control chart uses λ = 0.5. What is the value of L such that the control limits of this EWMA control chart in the steady state have the same width with a 3σ X_bar control chart?

Answers

Answer:

5.199

Step-by-step explanation:

From the information provided;

We know that λ = 0.5.

However, the control limits for a steady-state EMWA control chart is:

[tex]\mu_o \pm L \sigma \sqrt{\dfrac{\lambda }{(2-\lambda )n}}[/tex]

where;

[tex]UCL = \mu_o + L \sigma \sqrt{\dfrac{\lambda }{(2-\lambda )n}}[/tex]

[tex]LCL = \mu_o- L \sigma \sqrt{\dfrac{\lambda }{(2-\lambda )n}}[/tex]

Given that the data is chosen from an individual sample;

Then; we can express the width as:

[tex]L \sigma \sqrt{\dfrac{\lambda}{(2-\lambda)}}= 3 \sigma[/tex]

[tex]L \sqrt{\dfrac{\lambda}{(2-\lambda)}}= 3[/tex]

[tex]L \sqrt{\dfrac{0.5}{(2-0.5)}}= 3[/tex]

[tex]L \sqrt{\dfrac{0.5}{(1.5)}}= 3[/tex]

[tex]L \sqrt{0.333}= 3[/tex]

[tex]L\times 0.577= 3[/tex]

[tex]L=\dfrac{ 3 }{0.577}[/tex]

L = 5.199

There are 3,785 milliliters in 1 gallon, and there are 4 quarts in 1 gallon.
How many milliliters are in 3 gallons?
Label your answer in mL.

Answers

Answer:

11,355

Step-by-step explanation:

Because it's 3,785 per gallon, you just have to multiply that by three, which gets you 11,355

the largest orange in a bag has the circumference of 9 5/8 inches. The smallest orange has a circumference
of 7 13/16 inches. Write the difference of the circumferences of the smallest orange and the largest orange

Answers

Answer:

1.81 inches

Step-by-step explanation:

Given that,

The circumference of the largest orange in a bag is [tex]9\dfrac{5}{8}\ \text{inches}[/tex] and that of smallest orange is [tex]7\dfrac{13}{16}\ \text{inches}[/tex].

Difference = largest orange - smallest orange

= [tex]9\dfrac{5}{8}-7\dfrac{13}{16}\\\\=\dfrac{77}{8}-\dfrac{125}{16}\\\\=\dfrac{29}{16}\\\\=1.81\ \text{inches}[/tex]

So, difference of the circumferences of the smallest orange and the largest orange is 1.81 inches

Assume a significance level of α=0.05 and use the given information to complete parts (a) and (b) below.
Original claim: Less than 51% of adults would erase all of their personal information online if they could. The hypothesis test results in a P-value of 0.0148
a. State a conclusion about the null hypothesis. (Reject Upper H0 or fail to reject Upper H0
Choose the correct answer below.
A.Reject Upper H0 because the P-value is less than or equal to to α.
B. Reject Upper H0 because the P-value is greater than α.
C. Fail to reject Upper H0 because the P-value is greater than α.
D. Fail to reject Upper H0 because the P-value is less than or equal to α.
b. Without using technical terms, state a final conclusion that addresses the original claim. Which of the following is the correct conclusion?
A. The percentage of adults that would erase all of their personal information online if they could is less than or equal to 51%.
B.There is sufficient evidence to support the claim that the percentage of adults that would erase all of their personal information online if they could is more than 51%.
C. The percentage of adults that would erase all of their personal information online if they could is more than 51%.
D. There is not sufficient evidence to support the claim that the percentage of adults that would erase all of their personal information online if they could is more than 51%.

Answers

Answer:

A.Reject Upper H0 because the P-value is less than or equal to to α.

B.There is sufficient evidence to support the claim that the percentage of adults that would erase all of their personal information online if they could is more than 51%.

Step-by-step explanation:

Given the claim :

Less than 51% will erase their personal information :

We take this as the null ;

H0 < 0.51 ;

Alternative hypothesis which is the opposite of the Null

H1 > 0.51

P value = 0.0148

α = 0.05

At α = 0.05 ; if p value is less than α ; reject the the Null

If p value is greater than Null ; then we fail to reject the Null

Pvalue < α

The P value is less than 0.05; then we reject the Null

B.) There is significance evidence to support the Alternative hypothesis claim, that the percentage of adult that would erase all their personal information online if they could is more Than 51%

I’ll give Brainly! Write a corresponding real-world problem for each equation.

1. 0.55x + 4.50 = 0.65x + 3.50

2. 8x + 80 = 4x + 120

Answers

One day I went to the store I wanted to buy t things 1 one of them was 0.55x and the other was 4.50 all together is 0.65x plus 3.50

One day I had things for a party I had a children that was 8x and many balloons that was 80 all together they were 4x plus 120

if sin 15° =x and sin 75° =y then which one of the following correct

Tan 15°=x/y
Tan 75° =x/y
Cot 15°=x/y
75°=y/x

Answers

Answer:

tan 75 =x/you is the my answer

QUICK HELP ME DUE IN 3 MINUTES 123456789x123456789

Answers

Answer:

1.5241579e+16 is the answer

i d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d kv

Write 1 ordered pair excluding the y-intercept given the slope and y-int. of this line.

Answers

Answer:

y=2/3x+2

Step-by-step explanation:

Can anyone help me please? I’ll give brainliest

Answers

Answer:

Step-by-step explanation:

2x + 1 = 1/2 x 18 ( by mid pt theorem )

2x + 1 = 9

2x = 8

x = 8 / 2

x = 4

Hope this helps

plz mark as brainliest!!!!!!

Frank ordered a set of beads. He received 70 beads in all. 21 of the beads were green. What percentage of the beads were green?

Answers

answer: 30%
21 is 30% of 70

determine the area of a circle whose circumference is 70

Answers

389.93 I think is the area

factor completely
5x^2-9x-2

Answers

Answer:

(5x+1)(x - 2)

Step-by-step explanation:

Hi now bye HOPE U DO GOOOOOOOD

FEMALE REPRODUCTIVE SYSTEM (SE-7)

(have this done correctly for brainiest)

label the image with the words below.

Answers

Answer:

reproductive

Step-by-step explanation:

Solve the following equations for x.
kx - b=3d + 7b

Answers

Answer:

x= 3d/k +8b/k i think

Step-by-step explanation:

And.... next?
THANKS AGAIN.

Answers

the answer is C : 5years

i don't know this problem

Answers

Answer:

133 is the answer

plzz mark the brainliest❤❤

Step-by-step explanation:

3x-4=5x-38

so x=17

then we say 5×17-38=47

180-47=133

so 133 is the answe for angle 4

Which graph shows a proportional relationship between the number of hours of renting a boat and the total amount spent to rent the boat?

Answers

Answer:

Its B

Step-by-step explanation:

Evaluate the expression when x = 6
3x - 1

Answers

Answer:

Step-by-step explanation:

3x - 1; x = 6

3x - 1

3(6) - 1

18 - 1 = 17

-TheUnknownScientist

compare the fraction 3/5 to 1/2

Answers

Answer:

1 / 2 is smaller than 3 / 5.

Step-by-step explanation:

Compare 1/2 and 3/5. 1 / 2 is smaller than 3 / 5. Steps for comparing fractions. Find the least common denominator or LCM of the two denominators: LCM of 2 and 5 is 10; For the 1st fraction, since 2 × 5 = 10, 1 / 2 = 1 × 5 / 2 × 5 = 5 / 10; Likewise, for the 2nd fraction, since 5 × 2 = 10, 3 / 5 = 3 × 2 / 5 × 2 = 6 / 10 Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction

Give me the answers for a free brainly

Answers

Cockkkkkkkkkkkkkkkkkkkkkkkkkkkk

If x= time in minutes, y= distance in miles, and y=1/6x. How far can you run 5 points
in 30 minutes?*

Answers

Answer:

You can run 5 miles in 30 minutes.

Step-by-step explanation:

y = [tex]\frac{1}{6}[/tex] x

y = [tex]\frac{1}{6}[/tex] (30)

y = 5 miles

You can run 5 miles in 30 minutes.

1. Choose the correct symbol to compare. 8/10
3/4
<
>
=

Answers

Answer:

I think 8/10 is greater?

Answer:

8/10 > 3/4

Step-by-step explanation:

8/10 = .80

3/4 = .75

.80 is greater :)

Which equation applies the associative property of multiplication? (−1/2⋅4/7)+(−1/2⋅2/3)=−1/2⋅(4/7+2/3) (−9/4⋅3/2)⋅(6/3⋅5/7)=−9/4⋅(3/2⋅6/3)⋅5/7 −6/5−(5/3−1/4)=(−6/5−5/3)−1/4 8/9⋅7/4⋅(−5/8)=8/9⋅(−5/8)⋅7/4

Answers

Answer:

8/9⋅(−5/8)⋅7/4

Step-by-step explanation:

Find the interest on $900 at 6% for 4 years if the interest is added to the principal at the end of each year. Show your work. PLEASE HELP

Answers

Answer:

$1116

Step-by-step explanation:

6% of 900 = $54

54*4 = $216

900 + 216 = $1116

Regression Project: Find the Profit Model

Annual Widget Production x (widgets) Annual Total Cost c($)
10 609
20 1105
30 1523
40 2150
50 2603
60 3121
70 3672
80 4103
90 4601
100 5214
Recall that profit can be computed in terms of revenue and cost. Assume that the annual widget sales match the annual widget demand and annual widget production. Construct a model for profit using the models for revenue and cost that you found in the Revenue and Cost sections. Find the model for profit P ( x ), where P ( x ) is the total annual profit in dollars for x widgets sold, and write it as P ( x ) = a x 2 + b x + c. Note: You are using the fact that P ( x ) = R ( x ) − C ( x ), not creating a table of data.

value of a. -0.956
value of b. 106.2
value of c. ???????????????????? It is not 0, 73.4, 124.2, 104.87, 157, 50.8 I've tried all of these

Answers

Answer:

value of c is -73.4

Step-by-step explanation:

When you subtract revenue from cost the Profit model becomes

P(x)= -0.956x^2 + 106.2x - 73.4

Other Questions

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