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3 years ago

Here's a better picture again

Mathematics

2 answers:

choli [55]3 years ago

8 0

The answer of the question number 2 is D

grigory [225]3 years ago

6 0

He was right it's D.

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10-19+5 Regroup the integers and add and subtract

ale4655 [162]

Answer:

Step-by-step explanation:

<u>Solve left to right →:</u>

10 - 19 + 5
= (10 - 19) + 5
= -9 + 5
= -4.

Nothing else to say.

<h2>Your answer is -4.</h2>

7 0

1 year ago

Read 2 more answers

floodwalls are used to prevent damage from floods. A town built a floodwall 4 4/8 feet tall. Another town built a floodwall 7 1/

Bas_tet [7]

Answer:3 3/8

Step-by-step explanation:

Im not sure but im not dumb good luck

just minus 4 from 7 = 3 and 1-4=3

7 0

2 years ago

Can't figure out how to find the line of reflection.

FinnZ [79.3K]

I think you just got to plot the points it give you the it will be a reflection

3 0

2 years ago

The landing for the steps leading up to a county courthouse is shaped like a trapezoid. The area of the landing is 1500 square f

77julia77 [94]

Answer:

The length of the longer base is 80 feet.

Step-by-step explanation:

We are given that county courthouse is shaped like a trapezoid.

Let the height of the court house be h

Since we are given that The shorter base of the trapezoid is 15 feet longer than the height.

So, the shorter base = h+15

We are also given that The longer base is 5 feet longer than 3 times the height

So, longer Base = 3h+5

Now we are also given that the area of the landing is 1500 square feet.

Formula of area of trapezium :

= $\frac{1}{2} *(\text{Length of longer base}+\text{Length of shorter base})*height$

Substituting the values .

$1500=\frac{1}{2} *(h+15+3h+5)*h$

$1500=\frac{1}{2} *(4h+20)*h$

$1500*2=(4h+20)*h$

$3000=4h^2+20h$

Taking 4 common from the equation.

$750=h^2+5h$

$h^2+5h-750=0$

$h^2-25h+30h-750=0$

$h(h-25)+30(h-25)=0$

$(h-25)(h+30)=0$

⇒ h = 25, -30

Neglect the negative value .

So, height = 25 feet.

Length of Longer base = 3h+5 =3*25+5=80 feet

Hence , the length of the longer base is 80 feet.

6 0

3 years ago

What is 2+2•100000-3

emmasim [6.3K]

The answer is 399,997. 2+2= 4, the miliply 100,000 you get 400,000 then you subtract 3 which gives you 399,997. Now can you help me with my math question please?

8 0

2 years ago