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3 years ago

Need help math test pleaseeeee

Mathematics

1 answer:

marishachu [46]3 years ago

3 0

A,C, and D! x factors should always have a number next to them to show through tape diagrams , those without them are automatically eliminated , the rest have number answers and are correct

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How are pairs of parallel lines and skew lines similar and different?

Ne4ueva [31]

Answer:

Two or more lines are parallel when they lie in the same plane and never intersect. ... Skew lines are lines that are in different planes and never intersect. The difference between parallel lines and skew lines is parallel lines lie in the same plane while skew lines lie in different planes.

Step-by-step explanation:

hope it helps ^^

4 0

2 years ago

Seis manzanas y 8 peras cuestan $26. ¿Cuanto cuesta cada pera y cada manzana sabiendo que cada manzana cuesta el triple de lo qu

Rom4ik [11]

Usando un sistema de ecuaciones, se encuentra que

Cada manzana cuesta $3.
Cada pera cuesta $1.

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Un sistema de ecuaciones soluciona esta pergunta.
El custo de una manzana es x.
El custo de una pera es y.

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Seis manzanas y 8 peras cuestan $26, o sea, $6x + 8y = 26$
Cada manzana cuesta el triple de cada pera, o sea, $x = 3y$

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Primero, encontramos el cuesto de una pera, substituyendo la segunda en la primera ecuación.

$6x + 8y = 26$

$6(3y) + 8y = 26$

$18y + 8y = 26$

$26y = 26$

$y = \frac{26}{26}$

$y = 1$

Cada pera cuesta $1.

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Cada manzana cuesta el triple de cada pera, o sea, $x = 3y = 3(1) = 3$ .

Cada manzana cuesta $3.

Se encuentra um problema similar en brainly.com/question/24646137

6 0

3 years ago

Find the distance between the pair of points. give an exact answer, and, where appropiate, and apporximation to two decimal plac

atroni [7]

Distance Formula: $\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$
Product rule of radicals: √ab = √a x √b

Using our two points, we can solve for the distance as such:

$\sqrt{(4-(-6))^2+(3-(-1))^2}\\ \sqrt{(10)^2+(4)^2}\\ \sqrt{100+16}\\ \sqrt{116}$

Now our exact answer may be √116, however using the product rule of radicals we can further simplify the radical as such:

√116 = √4 x √29 = 2√29.

Exact Answer: √116 or 2√29
Approximate Answer: 10.77

8 0

3 years ago

WEGNERKOLMP PLEASE ANSWER THIS MATH QUESTION !!! 20 POINTS AND BRAINLIEST !!

jarptica [38.1K]

Answer:

c tomato 2.5

pepper = 3.5

Step-by-step explanation:

Let t= the price of tomato plants

p =the price of pepper plants

3t+ 4p = 21.50

5t+ 2p = 19.50

Multiply the second equation by -2

-10t -4p =-39

Add this to the first equation to eliminate p

-10t -4p =-39

3t+ 4p = 21.50

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

-7t = -17.5

Divide by -7

t = 2.5

Now find p

5t+ 2p = 19.50

5( 2.5) + 2p = 19.50

12.5+2p = 19.50

Subtract 12.5 from each side

2p =7

p =3.5

We want the price of 1 tomato and 1 p

3.5+2.5

4 0

3 years ago

Read 2 more answers

If f(x)= 9x-8 and g(x)=x^3,what is (g o f)(1)?

lesya692 [45]

(f∘g)(3) = f(g(3))

Find g(3) by substituting x=3 in g(x)

g(x)=x²-1

g(3)=3²-1

g(3)=9-1

g(3)=8

f*g(3) = f(g(3)) = f(8)

find f(8) by substituting x=8 in f(x):

f(x)=2x+3

f(8)=2(8)+3

f(8)=16+3

f(8)=19

So f∘g(3) = 19

Sorry I am wrong

4 0

4 years ago