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sergiy2304 [10]
3 years ago
9

Pls help me the question is on the picture

Mathematics
2 answers:
luda_lava [24]3 years ago
7 0

Answer:

X=149

Step-by-step explanation:

77+72=149

Ivanshal [37]3 years ago
6 0

Answer:

x =149

Step-by-step explanation:

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Which expression can be placed on the right side of the equals sign to form an equation 2+33=
qaws [65]

Answer: 33+2, 32+3, 31+4, 30+5, 29+6, 28+7, 27+8, 26+9, 25+10, 24+11, 23+12, 22+13, 21+14, 20+15, 19+16, 18+17, 17+18, 16+19, 15+20, 14+21, 13+22, 12+23, 11+24, 10+25, 9+26, 8+27, 7+28, 6+29, 5+30, 4+31, 3+32, 1+34.

Step-by-step explanation: Plz give e brainliest

5 0
3 years ago
A loan of $990 was repaid at the end of 6 months with a check for 1015. What annual interest was charged
ANEK [815]

The answer is .42%

Explained

I / PT = R

I = The amount of interest paid

P = The amount paid before adding interest

T = The time (weeks, months, years)

R = Interest Rate (must move 2 decimal place to the right)

8 0
4 years ago
A cylinder has a volume of 75 cubic centimeters. What is the volume of a sphere with the same height and radius?
bagirrra123 [75]
The sphere and the cylinder have the same heightbecause of this the height of the cylinder is equal to the diameter of the spherethe diameter of the sphere is 2*7=14 cm, so the height of the cylinder is also 14 cmthe radius of the cylinder is 7 cmV=∏*r^2*hV=3.14159*7^2*14V=3.14159*49*14V=3.14159*686V=2155.13074 cubic cm, or...V=(22/7)(7^2)(14)       (22/7 is an approximation for pi)V=(22/7)(49)(14)V=(22)(7)(14)V=(22)(98)V=2156 cubic cm
8 0
3 years ago
A rectangular box is to have a square base and a volume of 12 ft3. If the material for the base costs $0.17/ft2, the material fo
katen-ka-za [31]

Answer:

(a)Length =2 feet

(b)Width =2 feet

(c)Height=3 feet

Step-by-step explanation:

Let the dimensions of the box be x, y and z

The rectangular box has a square base.

Therefore, Volume of the boxV=x^2z

Volume of the box=12 ft^3\\

Therefore, x^2z=12\\z=\frac{12}{x^2}

The material for the base costs \$0.17/ft^2, the material for the sides costs \$0.10/ft^2, and the material for the top costs \$0.13/ft^2.

Area of the base =x^2

Cost of the Base =\$0.17x^2

Area of the sides =4xz

Cost of the sides==\$0.10(4xz)

Area of the Top =x^2

Cost of the Base =\$0.13x^2

Total Cost, C(x,z) =0.17x^2+0.13x^2+0.10(4xz)

Substituting z=\frac{12}{x^2}

C(x) =0.17x^2+0.13x^2+0.10(4x)(\frac{12}{x^2})\\C(x)=0.3x^2+\frac{4.8}{x} \\C(x)=\dfrac{0.3x^3+4.8}{x}

To minimize C(x), we solve for the derivative and obtain its critical point

C'(x)=\dfrac{0.6x^3-4.8}{x^2}\\Setting \:C'(x)=0\\0.6x^3-4.8=0\\0.6x^3=4.8\\x^3=4.8\div 0.6\\x^3=8\\x=\sqrt[3]{8}=2

Recall: z=\frac{12}{x^2}=\frac{12}{2^2}=3\\

Therefore, the dimensions that minimizes the cost of the box are:

(a)Length =2 feet

(b)Width =2 feet

(c)Height=3 feet

7 0
3 years ago
paige spent $7.55 on some report covers and one lanyard at the spirit shop. Each report cover costs $0.35 and the layard cost $6
fomenos

Answer:

The answer is 3.

Step-by-step explanation:

7.55-6.50=1.05

1.05/.35=3

8 0
3 years ago
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