Pls I need help ASAP

Answer:

x = 1 , y =− 2

Step-by-step explanation:

Multiply each equation by the value that makes the coefficients of  

x  opposite.

( − 4 ) ⋅ ( − 7 x − 8 y ) = ( − 4 ) ( 9 ) ( 7 ) ⋅ − 4 x + 9 y ) = ( 7 ) ( 22 )

Simplify.

y=-2

x=1

Step-by-step explanation:

[tex] \frac{8}{6} = \frac{x}{3} \\ x = \frac{3 \times 8}{6} = 4[/tex]

Answer: It’s 81

Step-by-step explanation:

I think it’s 81 because u use the distributive property (xy)^a=x^a y^a

and in the situation you change it into 3^4(x^7)^4 and u simplify 3^4 and get 81 and then just multiply 7 and 4 and your answer is 81x^28. 81 is c in the equation

We want to find an equivalent expression to  (3x^7)^4 of the form cx^n, and we want to find the value of c.

The equivalent expression is:

[tex]81*x^{28}[/tex]

So the value of c is:

c = 81.

First, we need to remember two properties of exponents.

The exponents are distributive under multiplications.

And we know that:

[tex](a^n)^m = a^{n*m}[/tex]

Using these two properties, we can rewrite:

[tex](3x^7)^4 = (3^4)*(x^{7*4}) = 81*x^{28}[/tex]

So the equivalent expression is:

[tex]81*x^{28}[/tex]

Then we have c = 81.

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Answer:

Bruuuhhhhhhhhhhhhhhhhhhh

Answer:

Step-by-step explanation:

there is no picture!

how are we supposed to help???

Answer:

1260

Step-by-step explanation:

1200 times 1.05 to get 5% interest added

Answer:

D. x = 18 cm , y = 9

Step-by-step explanation:

With reference angle 60

perpendicular (p) = 9[tex]\sqrt{3}[/tex]

base(b)= y

hypotenuse (h) = x

Then

sin 60 = p/h

[tex]\frac{\sqrt{3} }{2} = \frac{9\sqrt{3} }{x}[/tex]

x = 18

Now

cos 60 = b/h

1/2 = y/18

y = 9

Hope it will help :)

Answer:

it's answer is

D. = 18 and y = 9

Answer:

7. m and n = √8

8. a and b = √2

9 x and y = √1/8

10. x and y =5/√2

11. x and y = 3/√2

12. x and y = 9/√2

Step-by-step explanation:

Answer:

7. m and n = √8

8. a and b = √3

9 x and y = √1/8

10. x and y =2/√5

11. x and y = 3/√2

12. x and y = 8/√2

Step-by-step explanation:

i dont know i had some help from my older brother i hope this is right!

Answer:

?__________*_*__________?

Answer: 10 and a half For ivy For Hayden 8 half

Step-by-step explanation: because ivy gave Her mother 2 each and her father half and for her brother

Answer:

Given to father by Ivy: 12/2=6

Given to father by Hayden: 10/2=5

Now,

Chocolates given to mother by Ivy: 2

Chocolates given to mother by Hayden: 2

Now total chocolates given by Ivy to mother and father: 6+2 = 8

Now total chocolates given by Hayden to mother and father: 5+2=7

Now total chocolates left  with Ivy 12-8=4

Now total chocolates left with Hayden: 10-7= 3

Thus ivy and Hayden has  4&3 chocolates respectively

Answer:

25%

Step-by-step explanation:

increase = 15-12 = 3

percentage increase = 3/12 × 100 = 25%

Answer:

B

Step-by-step explanation:

just use logic it really helps you have to think things through

Answer:

4 feet

Step-by-step explanation:

?+8=12

4+8=12

12*4=48

Making the answer 4 feet

Answer:

5x-3

Step-by-step explanation:

This is linear because the numbers are changing at a constant rate (of 5)

We can also see that when x=0 y= -3 which means that in our equation

y=mx+b

-3 =b

I said prior that the rate of change is 5 which means that our slope is 5

which means that our equation looks like

5x-3

Answer:

Translation: 7 units right and 1 unit down

J(-3,1), F(-2,3), N(-2,0)

Step-by-step explanation:

trust me

Answer:

15.5 in

Step-by-step explanation:

perimeter = all way round

62 / 4 (sides) = 15.5

Step-by-step explanation:

the answer is:

180-48= 132°

Answer:

i hope this helps you :))

Step-by-step explanation:

132

Linear pairs always equal 180 degrees.

Therefore, Angle ABC + Angle CBD =180.

We already know Angle CBD is 48.

Therefore, Angle ABC + 48 =180

Subtraction Property of Equality:

Angle ABC = 180-48= 132 Degrees.

Answer:

-

Step-by-step explanation:

Answer is - 1 , but can't show work with smart phone. Don't own computer.

Use my head for most numbers. Sorry

Answer:

yo if you have problems like these try using photo.math I use it

Problem 7

Answers:

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

Explanation:

In step 1, there are 2 dots. So that number (2) fills in the blank for dots A.

Step 2 has 5 dots, which fills in the blank for dots B.

===========================================================

Problem 8

Answer: A) Quadratic

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

Explanation:

We have this sequence of dots: {1, 2, 5, 10, ...}

Note the increments of +1, +3, +5, ...

The increments aren't the same, so we don't have a linear sequence. But because the increment amounts go up by 2 each time, this strongly implies a quadratic sequence.

The rule for this sequence is n^2 + 1. Whatever the step number (n) is, we square it and add 1 onto that result. For instance, for step 3, we have n = 3 that leads to n^2 + 1 = 3^2 + 1 = 9 + 1 = 10. Also, note how the lone dot on the left of step 3 is tacked onto the 3 by 3 square of dots.

===========================================================

Problem 9

Answers:

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

Explanation:

Same idea as problem 7

===========================================================

Problem 10

Answer: B) Exponential

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

Explanation:

The sequence is {1, 3, 9, 27, ...}

In step 3 we have 3 rows and 9 columns of dots to give 3*9 = 27 dots total here.

The sequence is growing by a factor of 3 each time. In other words, we are tripling the terms or multiplying each term by 3 to get the next term.

Therefore, we have an exponential pattern.

The rule is 3^n

Eg: if we're on step n = 2, then we have 3^n = 3^2 = 9 dots.

Answer:

99 members

Step-by-step explanation:

Trust me it 99 I done it on mathswatch

The total number of members of the club will be 128 members.

A histogram exists a display of statistical information that utilizes rectangles to exhibit the frequency of data items in successive numerical intervals of equivalent size.

b) The total number of members of the club will be:

= 25 + 38 + 32 + 24 + 9

= 128

The total number of members of the club will be 128 members.

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Answer:

Exact form: x = - 1/2

Decimal form: x = - 0.5

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Answer:

x=-1/2

Step-by-step explanation:

Hope I helped!

Answer:

5√5

Step-by-step explanation:

Answer:

a fraction in which the numerator is greater than the denominator, such as 5/4.

Step-by-step explanation:

Answer:

what is the question? u do not say

Answer:

Whats the question?

Step-by-step explanation:

Answer:

-

Step-by-step explanation:

Answer:

-1/8

Step-by-step explanation:

In the negative number line whatever is closest to 0 is greater

-1/8 is -0.125

-1/4 is -0.25

-1/6 is -0.166666667

Answer:

its P

Step-by-step explanation:

Answer:

The boat will travel 292.8 miles on 24.4 gallons.

Step-by-step explanation:

How I figured this out was I divided 378 by 31.5 which got me 12. I then took 12 and multiplied it by 24.4

The minimum average score Ethan can earn on his fifth and final test is option (D) 60% is the correct answer.

An average of a list of data is the expression of the central value(mean) of a set of data. Average is calculated by adding quantities together and dividing the total by the number of quantities.

For the given situation,

The scores for 4 exams are 68%,72%, 85%, and 90%.

Let the score for the fifth test be x.

Formula for the average,

[tex]A = \frac{Sum of individual scores}{Total number of tests}[/tex]

⇒ [tex]75=\frac{68+72+85+90+x}{5}[/tex]

⇒ [tex]375=315+x[/tex]

⇒ [tex]x=60[/tex]

Hence we can conclude that the minimum average score Ethan can earn on his fifth and final test is option (D) 60% is the correct answer.

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