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3 years ago

I NEED THE ANSWER! PLEASE! HELP

Mathematics

1 answer:

DedPeter [7]3 years ago

5 0

Answer:

2=yes, 3= Yes, 4= Yes, 5= Yes, 6= Yes, 9= No, 10= Yes

Step-by-step explanation:

Divisibility rules 1-10, look up this video. It tells you all of the rules of divisibility 1-10.

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Please hurry... A boat traveled 36 miles in 3 hours.At this rate,how many miles will the boat travel in 0.5 hour. This is not a

Nataly [62]

velocity of the boat = 36miles/3 hours

divide denominator and numerator by 6 respectively

6 miles/0.5hrs

thus, the we can say that the boat will travel 6 miles in 0.5 hour

3 0

3 years ago

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A rectangular storage container with an open top is to have a volume of 10 m3. The length of this base is twice the width. Mater

marshall27 [118]

Answer:

$ 327.08

Step-by-step explanation:

Let x = width of the container,

Then Length of the container = 2x

Let h = height of the container,

volume of the container can be calculated as length × width × height

= 2x × x × h

= 2x² h

Then we can say Volume =

= 2x² h=10

If we simplify inorder to get h

We have h= 5/x²

Then the area= (2L×h) +(2xh)

Where L is lenght

x= wish

h= height

= 2× 2x × h+ x× h

= 4x× 5/x + 2x × 5/x

Area = 30/x

Now, the area of the base = length × width

But from question, for the base costs $20 per square meter. Material for the sides costs $12 per square meter

Then the cost C(x)= 2x²× 20+30/x ×12

C(x)= 40x²+35/x²

If we differenciate wrt x we have

C(x)= 80-360/x²

If we equate C(x)=0the

80=360/x²

x= 1.651

If substitute to C(x)= 40x²+35/x²

C(x) = 40(1.651)² + 35/(1.651)²

We have cost= 327.08

6 0

3 years ago

The ratio of the measures of the sides of a triangle is 4:7:5. If the perimeter of the triangle is 128 yards, find the length of

andrew11 [14]

Answer:

Step-by-step explanation:

4+7+5=16

7/16*128=56

3 0

3 years ago

What is AE and the perimeter of BCDE? Round your answer to the nearest tenth.

Oliga [24]

Answer:

AE = 43.2 units

Perimeter = 229.2 units

Step-by-step explanation:

Let the side AE be 'x'.

Consider triangles AEB and ADC

Statements Reasons

1. ∠ ABE ≅ ∠ ACD Right angles are congruent.

2. ∠A ≅ ∠A Common angle

Therefore, the two triangles are similar by AA postulate.

Now, for similar triangles, the ratio of their corresponding sides are also proportional to each other. Therefore,

$\frac{AE}{AD}=\frac{AB}{AC}=\frac{BE}{DC}\\\\\frac{AE}{AE+ED}=\frac{AC-BC}{AC}$

Now, plug in the given values and solve for 'x'. This gives,

$\frac{x}{x+72}=\frac{88-55}{88}\\\\88x=33(x+72)\\\\88x=33x+2376\\\\88x-33x=2376\\\\55x=2376\\\\x=\frac{2376}{55}=43.2$

Therefore, AE = 43.2 units

Now, from right angled triangle ABE,

$(AB)^2+(BE)^2=(AE)^2...(Pythagoras\ Theorem)\\\\(33)^2+(BE)^2=(43.2)^2\\\\BE=\sqrt{(43.2)^2-(33)^2}=27.879$

Similarly from right angled triangle ACD,

$CD=\sqrt{AD^2-AC^2}\\\\CD=\sqrt{(72+43.2)^2-88^2}=74.344$

Now, perimeter is the sum of all the sides of a figure. Therefore, the perimeter of BCDE is given as:

Perimeter = BE + ED + CD + BC

Perimeter = 27.879 + 72 + 74.344 + 55 = 229.223 ≈ 229.2 (Nearest tenth)

Therefore, the perimeter = 229.2 units

6 0

3 years ago

A clothing store has the sign shown in the shop window pani sees the sign and wants to buy three shirts and two pair of jeans th

Valentin [98]

Shirts are 12-3=$9 after the discount, and jeans are 19-3=$16.

3*9+2*16=27+32=$59.

3 0

3 years ago

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