5^2= (-5)^2
true or false

Answers

Answer 1

Answer: It’s True because of 5 square is equal to 25
Than (-5) square is also get the same value as 5^2

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I'm stuck with this simultaneous equation. Can anyone help me please?h + 3t = -10
2h - t = -8

Answers

multiply (h+3t= -10) to get 2h+6t=-20.

(2h+6t=-20) - (2h+t=-8) to get 5t=-28
therefore t=-5.6

put t into any equation. i.e (2h-t=-8) = 2h+5.6=-8
therefore 2h = -13.6
h=-6.8

Would use elimination method.

h + 3t = -10 ×2
2h - t = -8

2*(h + 3t) = 2*(-10)
2h + 6t = - 20......new equation 1.

2h + 6t = -20
-
2h - t = -8 To eliminate h.
__________
0 + 7t = -20 - -8

7t = -20 + 8

7t = -12

t = -12/7

From first equation: h + 3t = -10, substitute, t = -12/7

h + 3*(-12/7) = -10
h - 36/7 = -10
h = -10 + 36/7
h = 36/7 - 10

h = (36 - 70)/7
h = -34/7

Therefore, t= -12/7 and h = -34/7

Andre bakes some pizza .He puts 24 mushrooms on the veggie pizza.the veggie has 3 times as many mushrooms as the sausage pizza. How many mushrooms are on the sausage pizza

Answers

Answer:

Step-by-step explanation:

since he has 24 mushrooms on the veggie pizza, and that is 3 times MORE than the sausage pizza, you divide by three and get 8! hope this helps!

How do you do this problem ?5y 9≤4?

Answers

The solution to inequality is,

⇒ y ≤ - 1

We have to give that,

An inequality to solve,

5y + 9 ≤ 4

Now, Simplify the inequality as,

⇒ 5y + 9 ≤ 4

Subtract 9 on both sides,

⇒ 5y + 9 - 9 ≤ 4 - 9

⇒ 5y ≤ - 5

⇒ y ≤ - 5/5

⇒ y ≤ - 1

Therefore, The solution is,

⇒ y ≤ - 1

To learn more about inequality visit:

brainly.com/question/25944814

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5y+9≤4
minus 9 both sides
5y+9-9≤4-9
5y+0≤-5
5y≤-5
divdie both sides by 5
y≤-1

Determine whether the graphs of the given equations are parallel, perpendicular, or neither. y=x+11
y=-x+2

Answers

its not perpendicular cause they dont meet, its isn't parallel cause their both on the y , i guess its neither ..

Stephen does not like yogurt very much, but he loves apples. Since both make a good snack, Stephen’s mom makes a deal with Stephen. She will keep the refrigerator stocked with 5 yogurts, 2 green apples, and 3 red apples every day. Each day, Stephen will randomly pick a snack. What is the probability Stephen will not get three yogurts on three consecutive days? Use a tree diagram or area model to show all the possible outcomes in the sample space.

Answers

$1-((5)/(10))^3\n1-((1)/(2))^3\n1-(1)/(8)\n(7)/(8)$

Write the expression as either the sine, cosine, or tangent of a single angle. sin(pi/2)cos(pi/7)+cos(pi/2)sin(pi/7)

Answers

I will use the sin (a + b) identity:
sin (a + b) = sina cosb + cosa sinb and
here a = π/2 and b = π/7

so sin (π/2 + π/7)
= sin (9π / 14)

Answer:

$\text{sin}((9\pi)/(14))$ .

Step-by-step explanation:

We have been given a trigonometric expression $\text{sin}((\pi)/(2))\text{cos}((\pi)/(7))+\text{cos}((\pi)/(2))\text{sin}((\pi)/(7))$ . We are asked to write our given expression as either the sine, cosine, or tangent of a single angle.