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3 years ago

Y + 2.13 = -9.74 I need help

Mathematics

1 answer:

Oduvanchick [21]3 years ago

7 0

To get y alone you would subtract 2.12 so
Y = -11.87

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Sofia has an action figure collection. She keeps 185 of the action figures on her wall, which is 37% of her entire collection. W

Stolb23 [73]

Answer:

500 figures.

Step-by-step explanation:

We know that 185 figures is 37% of her entire collection.

Let c represent the total amount of figures.

Since 185 is 37% or 0.37 of her total collection, we can write the equation:

$0.37c=185$

Remember that the keyword of tells us it's multiplication.

Therefore, to find the number of figures in her total collection, divide both sides by 0.37:

$c=\frac{185}{0.37}$

Evaluate. Use a calculator. So:

$c=500$

Sofia's total collection has 500 figures.

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4 years ago

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In the figure, three line segments cross at a common point. Angle A is 45°, and angle E is 85°. What is the measurement of angle

katen-ka-za [31]

Answer: Measure angle H = 42°

Step-by-step explanation:

"In a triangle, the measure of the exterior angle is equal to the sum of the measures of the two non-adjacent angles to the exterior angle"

In given we have,

angle E is an exterior angle to triangle DFH

The two non-adjacent angles to angle E are angles D and H

Based on the above rule,

measure angle E = measure angle D + measure angle H

We are given this:

angle E = 87°

angle D = 45°

Substitute with the givens in the above rule and solve for the measure of angle H as follows:

angle E = angle D + angle H

87° = 45° + measure angle H

measure angle H = 87° - 45°

measure angle H = 42°

Hope this helped!

5 0

3 years ago

PLEASE HELP!!!!!!! please

Nataly_w [17]

Answer:

see explanation

Step-by-step explanation:

To find the zeros let h(t) = 0, that is

t² + 4t + 3 = 0 ← in standard form

(t + 3)(t + 1) = 0 ← in factored form

Equate each factor to zero and solve for t

t + 3 = 0 ⇒ t = - 3 ← smaller t

t + 1 = 0 ⇒ t = - 1 ← larger t

(2)

given a parabola in standard form : ax² + bx + c ( a ≠ 0)

Then the x- coordinate of the vertex is

$x_{vertex}$ = - $\frac{b}{2a}$

h(t) = t² + 4t + 3 ← is in standard form

with a = 1 and b = 4, thus

$x_{vertex}$ = - $\frac{4}{2}$ = - 2

Substitute t = - 2 into h(t) for y- coordinate

h(- 2) = (- 2)² + 4(- 2) + 3 = 4 - 8 + 3 = - 1

Vertex = (- 2, - 1 )

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3 years ago

2.5h= min pls answer me quick pls

Effectus [21]

Answer:

2.5h = 150 min.

Step-by-step explanation:

An hour is 60 minutes.

A half an hour is 30 minutes.

Two hours = 1 hour + 1 hour = 60 minutes + 60 minutes = 120 minutes

2.5 hours = 2 hours + 1/2 hour = 120 minutes + 30 minutes = 150 minutes

2.5h = 150 min.

Hope this helps.

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3 years ago

On a cold days, Leah likes to make hot chocolate. She uses 8 tablespoons of cocoa and 2 tablespoons of sugar. Leah double the re

Svetach [21]

Answer:

16 tablespoons and 4 tablespoon

Step-by-step explanation:

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3 years ago

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