-----HELP! HELP! HELP!-----

Answers

Answer 1

Answer: Hmm, I think in the question there is used wrong symbol. It should be $m\angle 1=55^(\circ)$
Then
$m\angle12=m\angle1=55^(\circ) \Rightarrow D$

Answer 2

Answer: The Answer is D because number 12 angle is acute not obtuse and 12 angle and 1 angle are vertical angles and vertical angles are always the same number of degrees

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Artificial turf in on athletic fields was first introduced in the 1960s. Its safety has been controversial since then. One issue that has been investigated is whether injuries of football players tend to be more serious on artificial turf than grass. A study followed 24 NCAA division 1A college football teams over three seasonsIn total there were 1050 injuries that occurred on field turf. Of the field turf injuries, 83.3333% were minor and 10.857% were substantial. 77.972% of grass injuries were minor. 4.26% of injuries occurred on grass were severe. (There is a total of minor injuries on grass and on field turf is equal to 1813. How many injuries were severe and occurred on field turf? Write your answer as an integer. How many injuries were severe? Write your answer as an integer.
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Help me with my pre algebra hw

Answers

0.4 (2x + 1/2) = 3 [0.2x+(-2)] - 4
0.4 (2x + 1/2) = 3(0.2x-2) - 4

Then, you have to use the distributive property.
0.8x + 0.2 = 0.6x - 6 - 4
0.8x + 0.2 = 0.6x - 10
0.8x - 0.6x + 0.2 = -10
0.2x + 0.2 = -10
0.2x = -0.2 - 10
0.2x = -10.2
x = -10.2/0.2
x = -51

Does that make sense?

We just distribute the numbers out inside the parenthesis:

0.4(2x + $(1)/(2)$ ) = 3[0.2x + (-2)] - 4
(0.4 × 2x) + (0.4 × $(1)/(2)$ ) = (3 × 0.2x) + (3 × -2) - 4
0.8x + 0.2 = 0.6x - 6 - 4

Join the like terms:

0.8x + 0.2 = 0.6x - 10

0.8x - 0.6x = -10 - 0.2
0.2x = -10.2

Divide by 0.2 to isolate x

$(0.2x)/(0.2)$ = $-(10.2)/(0.2)$
0.2 and 0.2 cancels out

x = -51

A highway is 45km in length.2/3 of the highway is paved.how many km of the highway is paved?

Answers

45 km* (2/3)= 30 km.

30 km of the highway is paved~

What fraction of 1 gallon is 1 quart

Answers

1/4 because 4 quarts in a gallon. So 1 quart is 1/4

Which graph represents the solution set of the inequality Negative 9 greater-than x?A number line going from negative 13 to negative 7. An open circle is at negative 9. Everything to the left of the circle is shaded.
A number line going from negative 13 to negative 7. A closed circle is at negative 9. Everything to the left of the circle is shaded.
A number line going from negative 13 to negative 7. An open circle is at negative 9. Everything to the right of the circle is shaded.
A number line going from negative 13 to negative 7. A closed circle is at negative 9. Everything to the right of the circle is shaded.

Answers

Answer:

(A)

Which graph represents the solution set of the inequality Negative 9 greater-than x?

A number line going from negative 13 to negative 7. An open circle is at negative 9. Everything to the left of the circle is shaded.

Step-by-step explanation:

edge 2021

brainliest??? :)

Answer: It's A - I got it right !

Step-by-step explanation:

In triangle ABC, the measure of ∠B is 90°, BC=16, and AC=20. Triangle DEF is similar to triangle ABC, where vertices D, E, and F correspond to vertices A, B, and C, respectively, and each side of triangle DEF is 1/3

the length of the corresponding side of triangle ABC. What is the value of sinF?

Answers

Answer:

Step-by-step explanation:

From.the Pythagoras theorem,

DF² = DE² + EF²; therefore, DE²= DF²-EF².since each of the side of DEF is 1/3 of sides ABC , it implies that ,1/3 of 20 = 6.7 ( DF)and 1/3 of 16 = 5.3 (EF)

DE² = 6.7²-5.3²;

DE² = 44.89 - 28.09

DE² =16.8

Therefore taking the square root is both side to get the true value of DE

√DE² = √16.8; DE = 4.098.

there the value of sin of angle F

SinF°= 4.098/6.7; = 0.6116

Therefore F° = sin-¹0.6116; 37.7°.

SinF = 0.6116, while angle F = 37.7°

Note: the purpose of using the Pythagoras theorem is to help you find the third side of triangle DEF which is DE

Sal wants to save a minimum of $1200 over the summer by saving $125/wk. He has saved $230 so far. About how many weeks will it take Sal to save enough money? A. at least 12 wk B. at most 12 wk C. at least 8 wk D. at most 8 wk Question Resources

Answers

it will take him 9 weeks to have $1200+ so the answer is c
XD

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