please answer and show work.

Answer:

1.23=4f+5

=4d=23-5=18

=d=18/4=4.5

2.3w+15=45

=3w=45-15=30

=w=10

Answer:

C. y = –2x + 3

Step-by-step explanation:

Graph the line using the slope and y-intercept, or two points.

Slope:  

−

2

y-intercept:  

(

0

,

3

)

x

y

0

3

3

2

0

Answer:

Step-by-step explanation:

Both equations are in slope-intercept form, so the coefficient of x is the slope of the line.

y = 4x-3

slope = 4

y = (¼)x + 3

slope = ¼

If the slope are the same, the lines are parallel. If the product of the slopes = -1, the lines are perpendicular.

4×¼ = 1

The lines are neither parallel nor perpendicular.

Answer:

3x^3+7x^2y−4y^3

Step-by-step explanation:

(3x^2+xy+−2y^2)(x+2y)

=(3x^2)(x)+(3x^2)(2y)+(xy)(x)+(xy)(2y)+(−2y^2)(x)+(−2y^2)(2y)

=3x^3+6x^2y+x2y+2xy^−2xy^2−4y^3

=3x^3+7x^2y−4y^3

Formula of volume of a Sphere is : V = 4/3 πr³

Here, Diameter (2r) = 12, so radius (r) = 12/2 = 6 feet

Substitute it into the formula,

V = 4/3 π(6)³

V = 4/3 *216π

V = 288π Ft² [ Answer in the term of π ]

You can also solve it for numeral value by substituting the value of π = 22/7

V = 288 * 22/7 = 905.15 Ft² [ Answer in numbers ]

Answer:

288 pi ft squared

Step-by-step explanation:

Edge 2021 :) Have a good day!

Answer:

1.   2x + 8y = 10xy

2.   13ab + 15ab = 28ab

Step-by-step explanation:

  This is because for question 2 the "a" and "b" stay together since it's on 13 and 15. So that is why you would get 28ab. For question 1 it's basicly the same but instead, you combine the two to get your answer.

Hope this helps.

Answer:

O.O

Step-by-step explanation:

CHEEEEESEEEEEEEEEE

Answer:

42x

Step-by-step explanation:

Answer:

The two angles are 85 and 95 degrees

Step-by-step explanation:

Supplementary angles add to 180

Let x be one angle

The supplement is 10 less,  ( x-10)

They add to 180

x+ ( x-10) = 180

2x -10 = 180

Add 10 to each side

2x-10+10 =180-10

2x= 190

Divide by 2

2x/2 =190/2

x=95

The other angle is 95-10 = 85

The two angles are 85 and 95 degrees

Answer:

718.38

Step-by-step explanation:

Answer: 500 ft^3

Step-by-step explanation: V=a2h

3=102·15

3=500

Sorry for the late response!! That's the correct answer I took the test. I hope this helped. <3

Answer:

y = 2.5x - 8

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 2.5 and c = - 8 , then

y = 2.5x - 8 ← equation of line

Answer:

Step-by-step explanation:

What you are doing is removing the  brackets. That shows up as multiplying both terms inside the brackets by the factor outside the brackets (2).

This is a classic example of the distributive property.

Answer:

324

Step-by-step explanation:

Answer: I Believe it’s 75, hope this helps.

Answer:

Jumper costs £13

Step-by-step explanation: (s = shirt j = jumper)

We know that 2s + 1j = £29

We also know that 1s + 1j = £21

29-21 = £8

This means that the shirts cost £8  each

We now need to multiply: 8 x 2 = £16  which means that the shirts in total cost £16

So, 29 - 16 = £13  which means one jumper costs £13

The cost of one jumper is $13.

An equation is a mathematical statement that shows that two mathematical expressions are equal.

Given that, two shirts and one jumper cost £29 while one shirt and one jumper cost £21, we need to find the cost of one jumper,

Let jumper is represented by j and that of shirt by s,

Establishing the equations,

2s + j = 29

j = 29 - 2s......(i)

s + j = 21

j = 21 - s.......(ii)

Solving the equations,

21 - s = 29 - 2s

s = 8

Put s = 8 in eq (ii)

j = 21 - 8

j = 13

Hence, the cost of one jumper is $13.

Learn more about equations, click;

https://brainly.com/question/29657992

#SPJ2

Answer:

7 + 11

Step-by-step explanation:

Sum means addition, so the sum of 7 and 11 is 7 + 11. I think that is what you meant. Hope this helps!

The given phrase written in expression as 18.

An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division.

The given phrase is the sum of 7 and 11.

Expression for the given phrase is

Here, sum means addition of numbers

The sum of 7 and 11 = 7+11

= 18

Therefore, the given phrase written in expression as 18.

To learn more about an expression visit;

https://brainly.com/question/28170201

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Answer:

94.2 cm ^2

Step-by-step explanation:

Pie= 3.14

3.15 x 5 x 6= 94.2

Answer:

94.2 cm ^3

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

This is because square root of 15 is between 3 and 4, which are not greater than 5. To make a right triangle you could used two 5 for side a and b BUT the longer side of the triangle has to be Greater than a and b

Hope this helped

Answer:

48.72

Step-by-step explanation:

your old value =42

your new value = let it be x

your original percentage =100percent

your new percentage:100+16

=116percent

old. new

value. 42. x

percentage 100. 116

cross multiply :x multiply by 100=42 multiplyby 116

100x=42x116

x=42x116/100

x=48.72

So, your increased value is 48.72

Answer:

choice 3) 50 in

Step-by-step explanation:

A = 625(Pi) in^2

radius = (sq rt 625)(Pi)/Pi

radius = 25

d = 2(radius)

d = 50 in

Answer: I can help :)

Step-by-step explanation:

Answer:

radius = 24.5 units

Step-by-step explanation:

153.86153 / 3.14 = diameter

diameter = 49 units

diameter / 2 = radius

49 / 2 = 24.5 units

Answer:

2.7384. Have a great day.

Answer:

`0.652 x 4.2` =  

Step-by-step explanation:

Just multiply .652 and 4.2 together and it equals 2.7384

Answer:

Look at the picture given

Step-by-step explanation:

We know that Sonja's house is 4 blocks west and 1 block south from the center while her school is 3 blocks east and 2 blocks north,

Follow NESW rule :

N = Up

E = Right

S = Down

W = Left

To solve this, all we need to is move 4 times to the left and 1 down to determine her house. As for her school, we need to move 3 blocks to the right and move 2 times up.

Answer:

Find it in (m a t h w a y) that will give you the answers and explanation

Answer:

A. Linear

Step-by-step explanation:

Points in Y row are all in a +5 relationship

Answer:

they both hike at 2 miles per hour

Answer:

if it's not 5 then P would be 5/6 bc there is only 5 more left if you take out 1.

Answer:

34 shirts and 17 pairs of pants

Step-by-step explanation:

Do you need an explanation?