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4 years ago

Can someone plz help me with this?

Mathematics

1 answer:

Finger [1]4 years ago

7 0

Answer: 39.25 squared centimeters

Step-by-step explanation:

Radius squared times pi

5*5= 25

25*3.14= 78.5

Since its HALF of the circle, divide by 2.

78.5/2= 39.25

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I’ve been stuck on this someone please help me solve this question

Leno4ka [110]

Answer:

part A) $f=2.75p$

par B) $38.5\ cups\ of\ flour$

Step-by-step explanation:

Part A)

Let

p ----> the number of pounds of cake

f ----> the number of cups of flour

we know that

A relationship between two variables, p, and f, represent a proportional variation if it can be expressed in the form $k=\frac{f}{p}$ or $f=kp$

Find the value of k

For p=3, f=8.25 ----> $k=\frac{8.25}{3}=2.75$

therefore

The linear equation is

$f=2.75p$

Part B) we have

For p=14

substitute in the equation and solve for f

$f=2.75(14)=38.5\ cups$

3 0

4 years ago

PLEASE HELP!<br> find the missing value:

Bess [88]

Answer:

Step-by-step explanation:

3 0

3 years ago

A system of equations and its solution are given below.

ratelena [41]

Answer:

Step-by-step explanation:

The second equation in system B is only in terms of y, so we need to use elimination to eliminate the x term from the second equation in system A.

To do that, we need to multiply the first equation by 5.

5 (-x − 2y = 7)

-5x − 10y = 35

Add to the second equation. Notice the x terms cancel out.

(-5x − 10y) + (5x − 6y) = 35 + (-3)

-16y = 32

Combining this new equation with the first equation from system A will get us system B.

-x − 2y = 7

-16y = 32

4 0

3 years ago

Solve and write solution in interval notation 4(x+1)+3>x-5

soldi70 [24.7K]

Answer:

$\large\boxed{x\in\left(-\dfrac{13}{3},\ \infty\right)}$

Step-by-step explanation:

$4(x+1)+4>x-5\qquad\text{use the distributive property}\\\\4x+4+4>x-5\\\\4x+8>x-5\qquad\text{subtract 8 from both sides}\\\\4x>x-13\qquad\text{subtract}\ x\ \text{from both sides}\\\\3x>-13\qquad\text{divide both sides by 3}\\\\x>-\dfrac{13}{3}\to x\in\left(-\dfrac{13}{3},\ \infty\right)$

3 0

3 years ago

Order the sides of the triangle from shortest to longest.

Genrish500 [490]

Answers:

Shortest Length = LN
Middle Length = LM
Longest Length = MN

========================================

Explanation:

Let's find the missing angle.

For any triangle, the three interior angles always add to 180

L+M+N = 180

75+50+N = 180

N+125 = 180

N = 180-125

N = 55

So we know the three angles of the triangle are

L = 75
M = 50
N = 55

We see that M = 50 is the smallest angle, so the smallest side is the segment opposite this angle. The smallest side is LN. The smallest side is always opposite the smallest angle.

Similarly, the largest side is always opposite the largest angle. The largest angle here is L = 75, so the largest side is MN.

The middle side must therefore be LM.

The diagram below shows a visual summary.

7 0

3 years ago