7x — 3х – 4 = -1 + 21

Answer:

x=6

Step-by-step explanation:

You can find the answers using similar triangles.

The leftmost side of the small triangle we shall call y. The leftmost side of the big triangle is twice this: 2y.

This tells us that the the side lengths in the big triangle are twice that of the small:

19x-28=2(6x+7)

19x-28=12x+14

7x=42

x=6

Answer:

12 is the GCF..........

Answer:

12

Step-by-step explanation:

listing the factors

12 : 1, 2, 3, 4, 6, 12

24 : 1, 2, 3, 4, 6, 8, 12, 24

36 : 1, 2, 3, 4, 6, 9, 12, 18, 36

The common factors are 1, 2, 3, 4, 6, 12

The GCF is 12

Answer:

AC=1.88

Step-by-step explanation:

cos 20 = AC/2

0.9397 = AC/2

AC = 1.88

Answer:

yes

Step-by-step explanation:

If the values are a Pythagorean triplet then the square of the largest value should equal the sum of the squares of the other 2

largest value = 50 ⇒ 50² = 2500

14² + 48² = 196 + 2304 = 2500

Since 50² = 14² + 48² then 14, 48, 50 are a Pythagorean triplet

Answer:

11k^2 (k - 7)(k - 1)

Step-by-step explanation:

The highest common factor is

11k^2

Using the distributive property we get at least 2 factors.

11k^2 ( k^2 - 8k + 7)

The second factor reduces yet again.

11k^2 (k - 7)(k - 1)

Answer:

11k^2(k−7)(k−1)

Step-by-step explanation:

11k^4 − 88k^3 + 77k^2

Factor out 11.

11(k^4-8k^3+7k^2)

Consider k^4-8k^3+7k^2. Factor out k^2.

k^2(k^2−8k+7)

Consider k^2 −8k+7. Factor the expression by grouping. First, the expression needs to be rewritten as k^2+ak+bk+7. To find a and b, set up a system to be solved.

a+b=−8

ab=1×7=7

Since ab is positive, a and b have the same sign. Since a+b is negative, a and b are both negative. The only such pair is the system solution.

a=−7

b=−1

Rewrite k^2−8k+7 as (k^2−7k)+(−k+7).

(k^2−7k)+(−k+7)

Factor out k in the first and −1 in the second group.

k(k−7)−(k−7)

Factor out common term k−7 by using distributive property.

(k−7)(k−1)

Rewrite the complete factored expression.

11k^2(k−7)(k−1)

Answer:

hmmmm bilmim weantremlo ?

Step-by-step explanation:

= 6m +5n + 4

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you and plzzz.

Answer:

56%8=7     so then u do this  (3 is the ratio of men) 3X7=21 and thats how u do it :D

Step-by-step explanation:

uhh i don't have one lol

Answer:

Answer is a

Step-by-step explanation:

You count carbon is c so count the black circles there are 5 and do the same with the rest

Answer:

Step-by-step explanation:

a

Answer:

I can not see it

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Multiply all the points by 2.

Step-by-step explanation:

The diameter is 6, so the square is also 6 feet by 6 feet. This means the square has an area of 36 feet.

Find the area of the circle:

3.14 * 3^2

3 ^ 2 = 9

3.14 * 9 = 28.26

Now find the area of the edges of the square.

36 - 28.26 = ~7.74 ft

Answer:

− 7 − 3

Step-by-step explanation:

( − 3 − 7 )

( − 7 − 3 )

GIven:522 miles in 9 hours.

So if we divide 522 by 9 we get that Kira drives 58 miles per hour.

Now in 7 hours Kira just drives 7 times that which means Kira drives.

58*7=406 miles

Hope this helped!

Step-by-step explanation:

Distance travelled in 9 hours = 522 miles

Distance travelled in 1 hour = 522/9 = 58 miles

Distance travelled in 7 hours = 7 * 58 = 406 miles

Hope it will help :)

Answer:

P = 2L + 2W

35 cm = 2(5 cm) + 2(W cm)

W = 12.5 cm

Step-by-step explanation:

P = 2L + 2W

35 cm = 2(5 cm) + 2(W cm)

35 cm - 10 cm = 2W cm

2W cm = 25 cm

w cm = 12.5 cm

Step-by-step explanation:

step 1. a rectangle has 2 sets of congruent sides; we will call them l and w.

step 2. P (perimeter) = l + l + w + w = 35

step 3. 35 = 5 + 5 + 2w

step 4. 25 = 2w

step 5. w(width) = 12.5 cm.

Answer:

The answer is HL which is option D.

Step-by-step explanation:

Congruent shapes have equal corresponding sides and angles.

The congruence theorem that can be used to prove  is HL

[tex]\triangle BAE \cong \triangle CAD[/tex] means that, the triangles are congruent.

From the figure, we have the following congruent sides

The above highlights mean that the theorem can be used to prove that the triangles are congruent is HL.

This is so, because the hypotenuse of both triangles are equal.

Read more about congruent triangles at:

https://brainly.com/question/11329400

Answer:

if they start to brown

Step-by-step explanation: They are white if they are new brown if old

Answer:

By studying fossils, we can tell how long life has existed on Earth, and how different plants and animals are related to each other. We can work out how and where they lived, and use this information to find out about ancient environments.

Step-by-step explanation:

Answer:

7 is 8,and 8 is 23p+9

Answer:

7= 8

8=

Step-by-step explanation:

Answer:

6/5

Step-by-step explanation:

Parallel lines have same slopes.

Answer:

370

Step-by-step explanation:

Multiply the number of liters (L) by 1,000 to find the number of milliliters (mL). There are 1,000 times as many milliliters as there are liters. For instance, say you have 3 liters. Simply multiply 3 liters by 1,000 to get 3,000 milliliters.

Answer:

[tex]4 \frac{5}{12}[/tex]

Step-by-step explanation:

The computation of the number of hours practiced on the third week is given below:

= Total hours over the past 3 weeks - first week - second week

[tex]= 15 \frac{1}{3} - 5 \frac{1}{4} -5 \frac{2}{3}\\\\= \frac{46}{3} - \frac{21}{4} - \frac{17}{3}\\\\= \frac{184 - 63 - 68}{12} \\\\= \frac{53}{12}\\\\= 4 \frac{5}{12}[/tex]

Answer: is is correct

Step-by-step explanation:

Answer:

Step-by-step explanation:

Did not see any questions I think you make a mistake you did not put the question.

IsMepawsxD1234567890abcdef​

Answer:

They added +3x instead of subtracting it in the first step.

Step-by-step explanation:

Instead:

5x + 2 = 3x - 8

-3x         -3x

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

2x + 2 = -8

      -2    -2

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

2x = -10

/ 2    / 2

-----------

1x = -5

---------

x = -5

Answer:

I think Giant.

Answer:

see in the picture, we have Z(-3; -3)

so after a D(1/3), we have:

x' = -3.1/3 = -1

y' = -3.1/3 = -1

=> Z'(-1; -1)

Answer:

distribute the 2 on the left side to become 2(x+7)-->2x+14=-4x+14, add 4x to both sides to become 2x+14+4x=-4x+14+4x-->6x+14=14, subtract 14 from both sides 6x+14-14=14-14-->6x=0 and divide both sides of the equation by 6 to get x alone, 6x/6=0/6-->x=0 so x would equal 0.

Step-by-step explanation:

Answer:

its C. 8 :) please give me brainlist

Answer:

23%

Step-by-step explanation:

322 ÷ 1400 = 0.23 = 23%

Step-by-step explanation: