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Ganezh [65]
3 years ago
13

I WILL MARK BRAINLEIST AND 20 EASY POINTS

Mathematics
1 answer:
salantis [7]3 years ago
4 0

Answer:

21 × 4 units³ 10 × 4 units³ 7 × 7 units³ 3 × 11 units³ A rectangular prism made up of unit cubes. There are 4 layers, and each layer is 3 units long and 7 units wide.

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A certain flagpole that is 298 feet tall casts a shadow 139 feet long. Find the angle of elevation on the sun.
Svetllana [295]

Answer:

57.6159 round if needed

Step-by-step explanation:

We know the length of the triangle which is 298. We know the base of the triangle which is 189.

We need to find angle of elevation so we must use tangent function.

\tan(x)  =  \frac{298}{189}

Use inverse tan function

\tan {}^{ - 1} ( \frac{298}{189} )  =  57.6159

Round if needed.

4 0
3 years ago
Solve the system be either substitution or elimination 3x-5y=21 and 2x+y=1
IRISSAK [1]

Answer:

(2,-3)

Step-by-step explanation:

I used substitution and rearranged the second equation to y=-2x+1. Then I replaced the y in the first equation with -2x+1. So, I got 3x-5(-2x+1)=21. When you solve that you get 13x=26 or x=2. Then you replace x with 2 in either equation and end up with y=-3.

4 0
3 years ago
Read 2 more answers
Solve The Following System of equations by graphing<br><br>3x + y = 5<br>x - 4y = 32​
Nostrana [21]

first you convert to slope intercept form

3x+y = 5 is the same as y = -3x+5

x - 4y = 32 is the same as y = 4x-8

then you graph

(starting with the y-intercepts as your first points)

the point where the two lines intercept is your solution.

5 0
3 years ago
HELPPPPPPPPP ASAPPPPPPPP PLSSSS
yanalaym [24]

-1/3(px-2) = 9

ok! so first we want to isolate x.

multiply both sides by -3/1 (this is the reciprocal of -1/3)

(px-2) = -27

px = -27 + 2

px = -25

x = -25/p

hope this helped!

8 0
3 years ago
If 2/5 of the macaroni and cheese provides 16 pieces to the table,how many pieces were in the pan when it was full? Support you
astra-53 [7]
Bearing in mind that a whole will be 5/5, so the full pan is 5/5.

\bf \begin{array}{ccll}&#10;macaroni&pieces\\&#10;\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\&#10;\frac{2}{5}&16\\\\&#10;\frac{5}{5}&p&#10;\end{array}\implies \cfrac{\quad\frac{2}{5} \quad }{\frac{5}{5}}=\cfrac{16}{p}\implies \cfrac{2}{5}\cdot \cfrac{5}{5}=\cfrac{16}{p}&#10;\\\\\\&#10;\cfrac{2}{5}=\cfrac{16}{p}\implies 2p=80\implies p=\cfrac{80}{2}\implies p=40
8 0
3 years ago
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