4y²=49 solve the equation​

Answers

Answer 1
y = 3.5

steps:
divided both sides by 4
y^2 = 12.25
square 12.25
= 3.5
Answer 2
Solution:

[tex]4y ^{2} = 49 \\ = > {y}^{2} = \frac{49}{4} \\ = > {y} = \sqrt{ \frac{49}{4} } \\ = > y = \frac{ \sqrt{49} }{ \sqrt{4} } \\ = > y = \frac{7}{2} \\ = > y = 3.5[/tex]

Answer:

y = 3.5


Related Questions

as a cure to the epidemic that spread in the whole country, the department of health released a new drug that is subject for experimentation, supposed that c(t)=2tt+2 (in mg/ml) represents the concentration of a drug in a patient's blood stream in t hours, how concentrated is the drug after 2 hours of administration

Answers

Answer:

Your smart maybe

Step-by-step explanation:

Which one of the following would prove that two triangles are congruenta

Answers

Answer:

Corroponding side lengths are equal

Step-by-step explanation:

Two triangles may have the same areas, but the sides might be different or in different spots than each other. The same goes for perimeter, therefore it doesn't mean that they are congruent. If two triangles had the same angle measures, it could still have any size side lengths. When corrosponding side lengths are equal, they have the same angles as well, so they are only congruent in this example.

Hope this helps :)

Tabitha sent 22 text messages every day for 7 days. How many messages did she send total?
154 messages
176 messages
164 messages
144 messages

Answers

22 x 7 = 154
She sent 154 messages

Answer:

the answer is 154

Step-by-step explanation:

22x7=154

Help



O A) 18cm?
OB) 36cm
OC) 72cm
D) 144 cm

Answers

Answer:

C) 72cm

Step-by-step explanation:

Multiply 12 x 6

please help me, what is this

Answers

Answer:

Proof:

In ΔCDB

∵ The sum of all angles of triangle = 180°

∴ m∠B + m∠C + m∠D = 180°

R3. Their sum = 180 (They form straight angle)

S4. ∠B + ∠A = 180°

R5. Triangle angle sum theorem (Sum of all angles of triangle = 180°)

In how many ways can a committee
of 5 men and 3 women be selected
from 9 men and 7 women ?

Answers

Answer:

use the same method

Step-by-step explanation:

Men=5

Women=3

Available Strength:

Men=7

Women=6

Objective:Finding no of such committees where particular 2 women are never together.

So initially ,Total possible number of commitee=7c5×6c3=420.

Now we need to find total committes where two particular women say(Sita and Gita ) are never together.

Approach—->

As the commitee requires 5 men and 3 women.

Let us first find number of committees where Sita and Gita are always together.

Hence we reserve 2 women seats for them.

Now we need one women out of remaining 4 women.

So possible number of such commitees 7c5×4c1.

=84.

Hence number of committees where Sita and Gita are never together

=420–84

=336.

The perimeter of the rectangle below is 65 inches.
a. What is the value of x?
b. What are the dimensions of the rectangle?

Answers

Answer:

A :-) Given -

perimeter = 65 inches

Side ‘a’ = 2x

Side ‘b’ = 3 1 by 4x + 1

Solution -

Perimeter = 65

= a + b = 65

= 2x + 3 1 by 4x + 1 = 65

( 3 1 by 4 = 4 x 3 + 1 = 12 + 1 by 4

= 13 by 4 )

= 2x + 13 by 4x + 1 = 65

= 2x + 13 by 4x = 65 - 1

= 2x + 13 by 4x = 64

= 15 by 4 x = 64

= x = 64 x 4 by 15

= x = 256 by 15

= x = 17.06

.:. The value of x = 17.06.

Which number is less than 8/3​

Answers

Answer:

A I belive

Step-by-step explanation:

Just divide the top number with the bottom

write an algebraic expression for: five more than a number cubed

Answers

Answer:

5+x^3

Step-by-step explanation:

46.6 is what percent of 67?

Answers

Answer:

46.6 is 69.5522% of 67

Step-by-step explanation:

brainliest plz

Pablo's family began their trip with a full tank of gas in their car. They drove 384.1 miles and
stopped to fill their tank back up with gas. It took 14.2 gallons of gas to fill up their tank.
About how many miles per gallon of gasoline did they average on their trip?

Answers

Answer: 27.049 mpg approximately

Work Shown:

(384.1 miles)/(14.2 gallons) = (384.1)/(14.2) mpg = 27.049 mpg approximately

mpg = miles per gallon

Answer:

27.05 miles per gallon

Step-by-step explanation:

384.1 miles = 14.2 gallons

x = 1 gallon

14.2x = 384.1

x = 384.1/14.2

= 27.0492958

≈ 27.05 miles per gallon

Hope this helps and be sure to have a wonderful time at Brainly! :D

Manuel is thinking about ordering some graphic T-shirts online. They cost $9 each, and shipping costs $8 regardless of order size. Write an equation that shows the relationship between the number of T-shirts Manuel buys, x, and the total amount he will pay, y. Do not include dollar signs in the equation.

Answers

Answer:

y = T(x) = 8 + (9/shirt)x

Step-by-step explanation:

Represent "total amount" by T(x).  Then:

y = T(x) = 8 + (9/shirt)x

Here the shipping cost ($8) is a fixed cost and the cost of the x shirts is ($9/shirt)(x), where x is the number of shirts bought.

Note that this is a linear equation, and that 8 represents the vertical intercept and (9/shirt) the slope of the line representing the total cost.

The equation that shows the relationship between the number of T-shirts Manuel buys, x, and the total amount he will pay, y is y = 9x + 8.

The total amount Manuel will pay consists of the cost of the T-shirts and the shipping cost.

The cost of the T-shirts is $9 each, and the shipping cost is a flat $8.

The equation that shows the relationship between the number of T-shirts Manuel buys (x) and the total amount he will pay (y) can be written as y = 9x + 8.

Hence, y = 9x + 8 is the equation that shows the relationship between the number of T-shirts Manuel buys, x, and the total amount he will pay, y.

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PLEASE HELP WILL MARK BRAINLIEST NO FAKE ANSWERS
Represent algebraically

Answers

1. 3n - 5

Five less = -5

Than thrice (three times) a number = 3n

2. 7n + 3

The product of 7 and a number = 7n

Added to 3 = + 3

3. 1/2(3n - 4)

One-half = 1/2

The difference of thrice a number and 4 = 3n - 4

Hope this helps!! :)

Answer:

1. 5-x

2. (7*x)+x

3. 1/2(3x-4)

20x+17=35x+30 help
Is due tomorrow

Answers

Answer:

x=[tex]-\frac{13}{15}[/tex]

or 15x=-13

Step-by-step explanation:

20x+17=35x+30

20x-35x=30-17

-15x=13

x=[tex]-\frac{13}{15}[/tex]

-13/15 this can be graphed on a plot

Help me fast please I am really confused!!!!!!

Answers

Answer:

By the way that the line is facing.

A tree grew from a height of 6 feet to 15 feet. By what percent did its height increase?

Answers

Answer:

It increased by 150%

Step-by-step explanation:

Given: WX congruent yz
Prove: WYXZ

Answers

 Answer:

    Segment Addition

Step-by-step explanation:

1. WX ≅ YZ                            Given

2. XY = XY                             Reflexive

3. WX + XY ≅  YZ + YZ       Addition

4.  WY ≅ XZ                         Substitution/ Segment addition

A. 6
B. 7
C. 12
D. 24

Answers

Answer:

A

Step-by-step explanation:

If you count, the number is 12. Then divide that number by 2. You get 6.

[you divide by 2 because you need to find the average. i rlly don't know how to explain better]

Answer:

The answer is A.

6

-6+6y^2 FACTORIZE AND EXPLAIN THROUGHLY

Answers

Answer:

like 6 is the factor in both monomials then you can factor like this

6(y^2-1)

Answer:

-6(1-y)(1+y)

Step-by-step explanation:

-6+6y²         Factor out -6 from the expression

-6(1-y²)        Use a²-b²=(a-b)(a+b) to factor the expression

-6(1-y)(1+y)  

What is the equation of the line that passes through the point (-8,-7) and has a slope of 1?

Answers

Answer:

y = x + 1

Step-by-step explanation:

WILL GIVE BRAINLIEST. a. determine a rule for the table B. complete the table. for input for 4 and n.

Answers

Answer:

WHAT TYPE OF MATH LIKE WHAT LESSON

Step-by-step explanation:

I’m completely confused on this, but I’ll take a guess

|-The output for 4 is 10
|-the output for the three dots is 13
|-the output for N is 16

If you look at the output for the previous numbers, 1, 4, and 7- you notice that 1+3=4 and 4+3=7, assuming this may be a rule, you can add 3 to 7 which gets you 10, continuing on 10+3=13 and 13+3=16. Next for the input try to see what the input and output have in common. 1 and 1, 2 and 4 and 3 and 7. 1+0=1 2+2=4 3+3=6(+1) =7 4+4=8 (+2)=10 (continue this for the three dots) 5+5=10 (+3)=13. Because of this the input for the three dots would be 5. For N, it would be 6+6=12(+4)=16, so the input for N would be 6.

(Once again I’m not completely sure how this works, and it may be a lot more complex than this (I’m so so so so so sorry if it’s wrong )

Where is the velocity negative?
E
B
A
G

Answers

Hello! The answer is

D-F

The V is negative when the velocity graph goes down. Hope this helps!

#HaveAnAmazingDay

[tex]GraceRosalia[/tex]

One example of a mathematical model is an equation that describes the relationship between two quantities.

a. True
b. False

Answers

Answer:

True

Step-by-step explanation:

Linear equations are often used to model the relationship between the dependent variable that is affected by changes in the independent variable.  

For instance, the linear function: f(x) = 2x + 3, where f(x) is the output (dependent variable) depends on the value of the input, x (independent variable).  

Therefore, the correct answer is True.      

How do you solve this type of problem?
Thanks!

Answers

We know that the total is 180 degrees of the lines.

To find x:
(5x+20)+(4x-11) = 180
x=19

To find y, input the value of x into the equation 4x-11 since this equation is equal to 2y+19
4(19)-11 = 65
2y+19 = 65
y=23

Alex wrote the expanded form for the number 165.038 as “100 + 60 + 5 + 30 + 8.” Was he correct? If not, give the correct expanded form. P.S I really need the answer asap!

Answers

Answer:

no he is not correct.

the correct expanded form: 100+60+5+0.0+0.30+0.008

Step-by-step explanation:

Hope this helps also i learned about this r u in 5th grade

Alex's expanded form for the number 165.038 is not correct. The correct expanded form for the number 165.038 is 100 + 60 + 5 + 0.03 + 0.008.

The number 165.038 can be broken down into its individual place values:

Hundreds: 100

Tens: 60 (6 tens)

Ones: 5

Tenths: 0.03 (3 hundredths)

Hundredths: 0.008 (8 thousandths)

So, the correct expanded form for the number 165.038 is:

100 + 60 + 5 + 0.03 + 0.008

Hence, Alex's expanded form for the number 165.038 is incorrect. The correct expanded form is: 100 + 60 + 5 + 0.03 + 0.008.

To learn more on Number system click:

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NEED HELP FAST

y=−1/3x+1

Answers

[tex]\\ \sf\longmapsto y=\dfrac{-1}{3}x+1[/tex]

Here let's compare with slope intercept form

[tex]\\ \sf\longmapsto y=mx+b[/tex]

We get

Slope=m=-1/3y-intercept=b=1

y = mx + k

gradien = m

y=−1/3x+1

gradien = -1/3

btw, di indo jg ada gradien :)

4x - 3 = 5 X=? can anyone tell me please

Answers

Answer:

x = 2

Step-by-step explanation:

4x - 3 = 5

4x = 8

x = 8/4

x = 2

------------

4 (2) - 3 = 5

8 - 3 = 5

5 = 5

answer: x = 2

Can someone help me :(( thank you so so much if u do <33:)

Answers

Answer:

13

Step-by-step explanation:

8-13=-5

Answer:

13

Step-by-step explanation:

8 - 13 = -5

that is your answer

hedllloopp mee and u get brainlist!!!

Answers

Answer:

15 cm (make sure to not put value with answer (cm))

Step-by-step explanation:

9x9 = 81

12x12 = 144

81+144 = 225

[tex]\sqrt{225}[/tex] = 15

Answer:

15

Step-by-step explanation:

9^2 + 12^2 = C^2

81 + 144 = C^2

225 = C^2

15 = C

Hope this helps! Pls give brainliest!

help?? ASAPpppppppppppp

Answers

Answer:

y = x - 4

Step-by-step explanation:

The equation is just y = x shifted down 4 units, so it's y = x - 4. If you have to use all of the symbols, you can write "y = x * 1 - 4 + 0". Otherwise, use the one under "Answer" as it is shorter

Answer:

Step-by-step explanation:

you find slope (y1-y2)/(x1-x2) = (0-1)/(4-5) = -1/-1= 1

then you take a point (4,0)

y-0 = 1(x-4)

I hope this helps!

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