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Alenkinab [10]
2 years ago
8

Solve the equation for x. x2 = 25/784 The solution of the equation is x =

Mathematics
2 answers:
riadik2000 [5.3K]2 years ago
5 0

Answer:

x 28\25=-1.120 hope it helps

aniked [119]2 years ago
3 0

Step-by-step explanation:

x² = 25/784

Since 25 = 5² and 784 = 28²,

x = ±(5²/28²) = ±5/28.

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NiCole Spent 15% of her day doing homework. How many hours did she spend on her homework?
Whitepunk [10]

Answer:

4 hour of her day

Step-by-step explanation:

4 0
2 years ago
Need help quick please. Find the area of the sector use 3.14 for pi
olga55 [171]

\textit{area of a sector of a circle}\\\\ A=\cfrac{\theta \pi r^2}{360} ~~ \begin{cases} r=radius\\ \theta =\stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ r=9\\ \theta =120 \end{cases}\implies \begin{array}{llll} A=\cfrac{(120)\pi (9)^2}{360}\implies A=27\pi \\\\\\ \stackrel{using~\pi =3.14}{A\approx 84.8} \end{array}

7 0
1 year ago
I need help on this question
vodka [1.7K]

Answer

Arc EF = 52°

Arc HD = 142°

Angle HGF = 128°

Explanation

To solve for the unknown angles, we need to first solve for x

To do that, we need to first note that the sum of angles on a straight line is 180°

So,

Angle HCG + Angle HCD = 180° (Sum of angles on a straight line)

Angle HCG = 2x

Angle HCD = 6x + 28°

Angle HCG + Angle HCD = 180°

2x + 6x + 28° = 180°

8x + 28° = 180°

8x = 180° - 28°

8x = 152°

Divide both sides by 8

(8x/8) = (152°/8)

x = 19°

Angle HCG = 2x = 2 (19°) = 38°

Angle HCD = 6x + 28° = 6(19°) + 28° = 142°

So, we can solve for the rest now

Arc EF = Angle ECF

= 90° - Angle ECD

Angle ECD = Angle HCG = 38° (Vertically opposite angles are equal)

Arc EF = Angle ECF

= 90° - Angle ECD

= 90° - 38°

= 52°

Arc HD = Angle HCD = 142°

Angle HGF = Angle HCG + Angle GCF = 38° + 90° = 128°

Hope this Helps!!!

6 0
1 year ago
I have 1,000 riyals in ten and five riyal notes. If the number of ten riyal notes that I have is ten more than the number of fiv
jeka94

Answer:

66 notes of 5 riyal

76 notes of 10 riyal

Step-by-step explanation:

(10x + 10) +5x = 1000

15x = 990

x = 66

so there are 66 of 5 riyal notes and 66 + 10 ie 76 of 10 riyal notes

4 0
2 years ago
together Charlotte and vinny have 20 marbles. charlotte has 4 times as many as vinny. how many marbles does Charlotte have.
nadya68 [22]

Answer:

5

Step-by-step explanation:

20 divided by 4 is 5

5 0
3 years ago
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