the difference between a number and 21

Answer:

22 + 4x = 90

4x = 68

x = 17

Step-by-step explanation:

Answer:

90-22=68.   68/4 is what?

Step-by-step explanation:

Answer:

f^-1(x)= -x/5 - 4/5

Step-by-step explanation:

Answer:

L=18cm

W=10cm

Step-by-step explanation:

Given data

let the length be x

L=x

Width= x-8

W= x-8

Perimeter= 56cm

But we know that the perimeter is expressed as

P=2L+2W

substitute our data

56=2(x)+2(x-8)

56=2x+2x-16

56+16=4x

72=4x

divide both sides by 4

x= 72/4

x=18cm

Hence the Length is 18cm

L=18cm

The width= 18-8

W=10cm

Answer:

a:95

b: a=75

Step-by-step explanation:

For a:

The angles are supplementary meaning they add to 180º. So you can set up an equation: x + 85 = 180

Subtract 85 from both sides:

x = 95º

For b:

Since it's an isosceles triangle (2 congruent sides), the base angles are equal to each other. So a = 75º

Answer:

Step-by-step explanation:

Mrs smith and i went to the shop to creme eggs at 23p each & kinder eggs at 47 peach in bulk. We bought 141 eggs altogether & it came to 48.51 how many creme eggs did we buy ?

Answer:

can you send a pic of the assignment

Step-by-step explanation:

(i will edit answer)

Answer:

A. Voters age 40 and over are least likely to favor road expansion.

Answer:

Value = 44,0000(0.75)^t

Where t = number of years

Value after 4 years = 44,000 (0.75)^4

Answer:

Statements:

1. BE BISECTS AD

2. AB ll DE

3. AC =~ DC (SIDE)

4. <BAC =~ <CED (ANGLE)

5. AB =~ DE (SIDE)

6. TRIANGLE BCA =~ TRIANGLE DCE

7. BC =~ EC

Reasons:

1. Given

2. Given

3. Def. of 1st given

4. Alternate interior angles

5. Parallel lines are congruent (or def. of 2nd given)

6. SAS (side angle side)

7. CPCTC (coresponding parts of congruent triangles are congruent)

A= -2

Step-by-step explanation:

B=45

Step-by-step explanation:

the volume would be inside of the spear so i could be wrong but you would do 10 multiplied by 21 and you get 210. IF you did base and height the base would be 10ft and the height would be 21ft then you just do base times height and that gets you 210 . i could be wrong though

Answer:

$6

Step-by-step explanation:

let x and y be the number of chip and pretzel bags respectively  : 4x%2B2y%3 C=20 : if x=1 then 4%281%29%2B2y%3C=20--->{{2y<=16}}}--->y%3C=8  : if x=3 then 4%283%29%2B2y%3C=20--->{{2y<=8}}}--->y%3C=4  : so chips 1 and pretzels 8  : chips 3 and pretzels 4.

Answer: a reflection across the x-axis

Answer:

Try using photo math it helps

Step-by-step explanation:

Answer:

6-8-10

9-12-15

5-12-13

Step-by-step explanation:

We know the 3-4-5 right triangles work when you multiply the sides by anything. For example. 6-8-10 and 9-12-15 work.

If you want other right triangles that follow a similar pattern, 5-12-13 is also viable. 10-24-26 & 15-36-39 are all right triangles

The 6, 8, 10, and 9, 12, and 15 are other sides of the right-angle triangle after applying Pythagoras theorem.

It is a triangle in which one of the angles is 90 degrees and the other two are sharp angles. The sides of a right-angled triangle are known as the hypotenuse, perpendicular, and base.

We have:

Lin says she has memorized the lengths of a few right triangles, for example, 3, 4, and 5.

There are 6, 8, 10, 9, 12, and 15 other sides of the right-angle triangle.

On applying Pythagoras theorem.

6² + 8² = 10²

9² + 12² = 15²

Thus, the 6, 8, 10, and 9, 12, and 15 are other sides of the right-angle triangle after applying Pythagoras theorem.

Learn more about the right-angle triangle here:

brainly.com/question/3770177

#SPJ2

Answer:

x=-18

Step-by-step explanation:

Answer:

x = -18

Step-by-step explanation:

5 - x = 23

5 - 5 - x = 23 - 5

-x = 18

-1x / -1 = 18 / -1

x = -18

Hope this helps and stay safe, healthy, and happy, thank you :) !!

Answer:

A. 45

B. 60

C. 65

D. 121

2. 108

3.

4. 8

5. 104

6. 132

7. 24

8. 38

9. 65

Step-by-step explanation:

Area of rectangles is L*W while right triangle is lw/2

Answer:

y = x² + 10

Step-by-step explanation:

Answer:

well it's not d. i had to guess bc that other person's answer was completley unhelpful, no offense. anyways, i think it's a

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

1,500

Step-by-step explanation:

Answer:

<HIK and <JIF

Step-by-step explanation:

Those are the only angles directly across from each other : )

0 lol this is funny thanks for free points

Answer:

I think its zero but I'm not sure dude

hope this helps :)

Answer:

228

Step-by-step explanation:

ANOTHER QUESTOIn?

Answer:

Answer should be 5/2 I thinkkkkk

Answer:

2.5 or can be 5/2

Step-by-step explanation:

Answer:

The population in 2015 will be 165 million.

Step-by-step explanation:

The exponential growth formula is given by:

[tex] f(t) = a(1 + r)^{\Delta t} [/tex]

Where:

a: is the initial population

r: is the rate of increase

Δt: is the time        

With the initial information we can find the rate:

[tex] 151 = 145(1 + r)^{1998-1990} [/tex]      

Using logarithm:                                    

[tex] ln(151) = ln(145) + 8[ln(1 + r)] [/tex]  

[tex] ln(1 + r) = \frac{ln(151) - ln(145)}{8} [/tex]                        

[tex] ln(1 + r) = 5.0683 \cdot 10^{-3} [/tex]          

Using exponential:          

[tex] e^{ln(1 + r)} = e^{5.0683 \cdot 10^{-3}} [/tex]

[tex] r = 5.081 \cdot 10^{-3} [/tex]        

Now, we can find the estimated population in 2015:

[tex] f(t) = 151(1 + 5.081 \cdot 10^{-3})^{2015-1998} [/tex]              

[tex] f(t) = 165 [/tex]              

Therefore, the population in 2015 will be 165 million.

I hope it helps you!

Answer:

137

Step-by-step explanation:

A linear pair adds up to 180 so if you subtract 180 minus 43 its 137 (a)

Then since a parallel line cut by a transversal forms alternate interior angles, (b) would equal 137 also

The since vertical angles are congruent, (b) is equal to ? which is 137

Answer:

I'm pretty sure it (a)

Step-by-step explanation:

I learned it as you eat the larger number