36. perform the indicated operation: 70÷7×5 + 64÷4×2.\na. 10\nb. 34\nc. 36\nd. 82\n37. which of the…

36. perform the indicated operation: 70÷7×5 + 64÷4×2.\na. 10\nb. 34\nc. 36\nd. 82\n37. which of the following has the largest perimeter?\na. a rectangle whose sides are 22 cm and 23 cm.\nb. an equiangular triangle with a 24 - cm side.\nc. a square whose side measures 22 cm.\nd. a circular pizza with a radius of 13 cm.\n38. what will be the value of 8.56 when multiplied by 10 raised to the power of 6?\na. 856,000,000\nb. 85,600,000\nc. 8,560,000\nd. 856,000\n39. mr. chan borrowed php50,000.00 from a bank at 5% interest per month. how much will he pay after a year?\na. php80,000.00\nb. php100,000.00\nc. php150,000.00\nd. php130,000.00\n40. how many diagonals are there in an icosagon?\na. 135\nb. 160\nc. 170\nd. 180\n41. ito ay tumutukoy sa mga pahayag na may sukat o bilang ng mga pantig, tugma, taludtod, at saknong.\na. mga akdang tuluyan\nb. mga akdang tulua\nc. talambuhay\nd. sanaysay\n42. which of the following is a physical property of sugar?\na. it decomposes with heat\nb. it turns black with concentrated acids\nc. its a white crystalline solid\nd. it breaks down with water and enzymes\n43. which of the following illustrates newtons second law of motion?\na. a car will have a greater acceleration than a truck when the same force pushes both car and truck.\nb. a glass of water lies on top of a flat table.\nc. a car is moving at a steady speed of 50km/h.\nd. a ball is falling from an airplane.\n44. 200 °c is equivalent to __________.\na. 392 °f\nb. - 273 k\nc. 353 °f\nd. - 173 k\n45. the product of the collapse of massive star with a core three times the mass of our sun is a __________.\na. neutron star\nb. red giant\nc. pulsar\nd. black hole\n46. which is incorrect about the elements neon, argon, krypton, and xenon?\na. they are very unreactive.\nb. they have very high ionization energies.\nc. they have 8 valence electrons.\nd. they are called halogens.\n47. which of the following explains why a virus cannot be considered a living organism?\na. it does not evolve.\nb. it is made up only of proteins and nucleic acid.\nc. it uses a limited source of energy to reproduce.\nd. it can reproduce only in the presence of a host cell.\n48. which of the following statements does not explain the movement of earths crust?
Answer
Explanation:
Step1: Solve 36
Follow the order - of - operations (PEMDAS: Parentheses, Exponents, Multiplication and Division from left - to - right, Addition and Subtraction from left - to - right). $70\div7\times5 + 64\div4\times2=(70\div7)\times5+(64\div4)\times2 = 10\times5 + 16\times2=50 + 32=82$.
Step2: Solve 37
- For option A: Perimeter of rectangle $P_{rect}=2(l + w)=2(22 + 23)=2\times45 = 90$ cm.
- For option B: Perimeter of equilateral triangle $P_{triangle}=3s=3\times24 = 72$ cm.
- For option C: Perimeter of square $P_{square}=4s=4\times22 = 88$ cm.
- For option D: Circumference of circle $C = 2\pi r=2\times\pi\times13\approx2\times3.14\times13 = 81.64$ cm. The rectangle has the largest perimeter.
Step3: Solve 38
When a number is multiplied by $10^n$, we move the decimal point $n$ places to the right. For $8.56\times10^6$, we move the decimal point 6 places to the right, getting $8560000$.
Step4: Solve 39
The interest formula is $I=Prt$, where $P = 50000$, $r=0.05$ (monthly interest rate), and $t = 12$ months. $I=50000\times0.05\times12=30000$. The total amount $A=P + I=50000+30000 = 80000$.
Step5: Solve 40
The formula for the number of diagonals of an $n$ - sided polygon is $d=\frac{n(n - 3)}{2}$. For an icosagon ($n = 20$), $d=\frac{20\times(20 - 3)}{2}=\frac{20\times17}{2}=170$.
Step6: Solve 42
The physical property of sugar is that it is a white crystalline solid. Decomposition with heat, turning black with concentrated acids, and breaking down with water and enzymes are chemical properties.
Step7: Solve 43
Newton's second law is $F = ma$, so $a=\frac{F}{m}$. A car has a smaller mass than a truck, so for the same force, a car will have a greater acceleration.
Step8: Solve 44
To convert Celsius to Fahrenheit, use the formula $F=\frac{9}{5}C+32$. For $C = 200$, $F=\frac{9}{5}\times200+32=360 + 32=392^{\circ}F$. To convert Celsius to Kelvin, use $K=C + 273$. For $C = 200$, $K=200 + 273=473$ K.
Step9: Solve 45
When a massive star with a core three times the mass of our Sun collapses, it forms a black hole.
Step10: Solve 46
Neon, Argon, Krypton, and Xenon are noble gases, not halogens. They have 8 valence electrons and very high ionization energies and are very unreactive.
Step11: Solve 47
A virus cannot be considered a living organism because it can reproduce only in the presence of a host cell.
Answer:
- D. 82
- A. A rectangle whose sides are 22 cm and 23 cm.
- C. 8,560,000
- A. Php80,000.00
- C. 170
- C. it's a white crystalline solid
- A. A car will have a greater acceleration than a truck when the same force pushes both car and truck.
- A. 392°F
- D. Black hole
- D. They are called halogens.
- D. It can reproduce only in the presence of a host cell.