Help me..... please.....

Answers

Answer 1

Answer: Hello!
The first step is to add the 40 to both sides of the equation because the 40 is negative, and adding a 40 will make it 0.
Hope this helps!

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Not sure how to solve. Julia uses the shadow of a flagpole to estimate its height. She stands so that the tip of her shadow coincides with the tip of the flagpole’s shadow, as shown. Julia is 5 feet tall. The distance from the flagpole to Julia is 28 feet, and the distance from the tip of the shadows to Julia is 7 feet. Calculate the height of the flagpole. a. 13 feet b. 980 feet c. 39 feet d. 25 feet

Answers

You are going to have to compare the height and shadow of Julia to the height and shadow of the flagpole.
Julia is 5 feet tall with a shadow of 7 feet.
The flagpole is "x" feet tall with a shadow of 35 feet (to get 35, I added 28 feet and 7 feet.)
So, you do 5/7 = x/35
You cross multiply and get 175 = 7x
Then, divide by 7 and you get 25.
25 feet is the height of the flagpole, so it would be option "D".

Answer:

C. 25 feet.

I just wanted to clarify because he got the answer 25 correct however not the option.

mark him brainliest plox?

What number must be added to the expression below to complete the square? x2+x

Answers

Answer:

answer is 1/4

Step-by-step explanation:

proof is (x-1/2)²= x²-2*1/2*x+1/4= x²-x+1/4

In a certain dart game, points are awarded for hitting a certain sections of the board. You get 5 points for each hit and lose 3 points for each miss. Each game consists of throwing 10 darts. If one team scores 18 points, how many darts hit the target and how many miss the target?Use substitution or elimination to solve:

t= dart that hit the target
m= darts that miss the target

t+m=10
5t+3m=18

Answers

so we have
h=hits
m=miss
h+m=10

gain 5 for every hit and lose 3 for every miss
so 5 times number of hit=points from hit
-3 times number of miss=points deducted from miss
add
5h-3m=18
so we have the equations

h+m=10
5h-3m=18

multiply first equation by 3
3h+3m=30
add to first equatio

3h+3m=30
5h-3m=18 +
8h+0m=48

8h=48
divide by 8
h=6
subsitute
h+m=10
6+m=10
subtract 6
m=4

6 hits
4 miss

Well look at that! The equations are already set up.

Let t= dart that hit the target
Let m= darts that miss the target

t+m=10 This equation is true because you throw 10 darts in one game.
5t+3m=18 This equation is true because the team got 18 points.

Now let's use substitution by solving one variable and substituting what the variable equals into the other equation.
t+m=10
m = 10-t
Now substitute 10-t as "m" in the other equation.
5t + 3(10-t) = 18
5t + 30 -3t = 18
2t = -12
t = -6

Now substitute -6 into the equation m=10-t
m = 10 - (-6)
m = 10 + 6
m = 16

Is this figure a parallelogram?

Answers

Answer:

it is not a parallelogram.it is a kite or either a rhombus

True or false? The equation (x y)^2 is always equal to x^2 y^2.

Answers

Hello!

Answer:

$\Large \boxed{\sf True}$

Step-by-step explanation:

→ We want to find if the expression (xy)² is equal to x²y².

→ Let's simplify the expression:

→ We know that $\sf (a * b)^n$ is equal to $\sf a^nb^n$ .

In our expression:

$\sf a = x\nb = y\nn = 2$

→ So the expression is equal to:

$\sf x^2 y^2$

Conclusion:

The expression (xy)² is equal to x²y².

So the answer is true.

Answer:

True

Step-by-step explanation:

(xy)²

= xy × xy

= x × x × y × y

= x² × y²

= x²y² ← True

Theo used to drive 60 miles to work each day. His new home is now 20 miles awayfrom his job. What is the percent of
decrease in the distance Theo travels to
work? Round to the nearest tenth if
necessary.

Answers

The percentage of decrease in the distance Theo travels to work is 66.7%.

Used concept of percentage;

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating the hundredth part of any quantity is called a percentage.

Given that;

Theo used to drive 60 miles to work each day.

And, His new home is now 20 miles away from his job.

Hence the percentage of decrease in the distance Theo travels to work is,

P = (60 - 20)/60 x 100

P = 40/60 x 100

P = 66.7%

So, The percentage of decrease in the distance Theo travels to work is 66.7%.

Learn more about the percentage visit:

brainly.com/question/24877689

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Answer: