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3 years ago

Which expression is equivalent to 2(c+7)-18x+4/5

Mathematics

1 answer:

mestny [16]3 years ago

3 0

Answer:

2c - 18x + 74/5

Step-by-step explanation:

Step 1: Distribute

2(c + 7) - 18x + 4/5

(2 * c) + (2 * 7) - 18x + 4/5

2c + 14 - 18x + 4/5

Step 2: Combine like terms

2c + 14 - 18x + 4/5

2c - 18x + 74/5

Answer: 2c - 18x + 74/5

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(GEOMETRY 100 POINTS)

Karo-lina-s [1.5K]

Answer:

1) They are similar

2) 45 ft

Step-by-step explanation:

1) similar because both triangles have congruent interior angles

2) 75/35 = AB/21

AB = 45 ft

5 0

2 years ago

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What is the area of this trapezoid?

Misha Larkins [42]

Answer:

132 in

Step-by-step explanation:

rectangle- 12(8)=96

triangle 1- 3(12)= 36 divide by 2 = 18

triangle 2- same as tri. 1

rapeziod- 96+18+18=132

4 0

3 years ago

8. The angle measures of a triangle are shown in the diagram. What is the value of x? A. 20 B. 15. C. 32 D. 40 I WILL GIVE BRAIN

AfilCa [17]

Answer:

D) 40

Step-by-step explanation:

triangles equal to 180 degrees

2x+10+x+50=180

3x+60=180

3x=120

x=40

7 0

10 months ago

Find the product.

4vir4ik [10]

Answer :

$6{y}^{4} {z}^{2} + 12 {y}^{3} {z}^{2}-3 {y}^{3} {z}+3 {y}^{2} {z}^{2}$

Step-by-step explanation :

To find the product of

$3 {y}^{2} z(2 {y}^{2} z + 4yz - y + z)$

First we expand the bracket ,

it implies that, we use the expression outside the bracket to multiply individual expressions inside the bracket.

Hence

$3 {y}^{2} z(2 {y}^{2} z + 4yz - y + z)$

$= 3 {y}^{2} z(2 {y}^{2} z) + 3 {y}^{2} z(4yz) - 3 {y}^{2} z(y )+3 {y}^{2} z( z)$

we now apply the law of indices

${a}^{m} \times {a}^{n} = {a}^{m+n}$

meaning, when you are multiplying two expressions with the same bases , repeat one of the bases and add the exponents.

Then, simplify to obtain

$= 6{y}^{4} {z}^{2} + 12 {y}^{3} {z}^{2}-3{y}^{3} {z}+3 {y}^{2} {z}^{2}$

3 0

2 years ago

I need help with number 3

yan [13]

First check whether the point (-6,8) is the solution to any of the equations. To check, just plug in the x and y values of the points into the equation and see if they give you a true statement.
5(-6)+3(8)=-6
-30+24=-6
-6=-6
That's a true statement so the point is the solution to the first equation.
2(-6)+(8)=-4
-12+8=-4
-4=-4
It is a true statement so the point is a solution for both equations
There are no other solution because lines can only intersect in one or infinite points, but that is only if they are the same lines, which is not true in this circumstance.
A. It is the only solution to the set.
Hope this helps.

7 0

3 years ago

Read 2 more answers