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ss7ja [257]
3 years ago
11

Find the value of a and explain

Mathematics
2 answers:
Irina-Kira [14]3 years ago
3 0

Answer:

D

Step-by-step explanation:

The triangle is an isosceles triangle which means that two sides are the same, A is the same size of the equal side so A is D.

Eduardwww [97]3 years ago
3 0

Answer:

The answer is D.

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Tony's fish tank is a right rectangular prism 50 \,\text{cm}50cm50, space, c, m long by 25\, \text{cm}25cm25, space, c, m wide.
Svetlanka [38]
The volume of the prism is calculated by multiplying the length, L, width,W, and depth or height, H. 
                                 V = L x W x H
Fish tank:
                                V = 50 cm x 25 cm x 25 cm 
                                     = 31250 cm³
Depth of the water in tank (with castle - without castle)
                                   d = 57.5 cm - 48 cm = 9.5 cm
Volume of the caste: 
                                V = 9.5 cm x 50 cm x 25 cm = 11875 cm³
6 0
3 years ago
Can someone please solve this?
MrRa [10]

I ran out of time. will come back in a few minutes to answer the question.

8 0
2 years ago
Emmanuel carves a cone-shaped hollow out of a solid clay cylinder. What is the approximate volume of the solid portion of the cy
bixtya [17]

Answer:

3.14r^2(h-\frac{1}{3}h_1)

Step-by-step explanation:

Let h be the cylinders height and r the radius.

-The volume of a cylinder is calculated as:

V=\pi r^2h

-Since the cone is within the cylinder, it has the same radius as the cylinder.

-Let h_1be the height of the cone.

-The area of a cone is calculated as;

V=\pi r^2 \frac{h}{3}\\\\=\frac{1}{3}\pi r^2h_1

The volume of the  solid section of the cylinder is calculated by subtracting the cone's volume from the cylinders:

V=V_{cy}-V_{co}\\\\=\pi r^2h-\frac{1}{3}\pi r^2 h_1, \pi=3.14\\\\=3.14r^2(h-\frac{1}{3}h_1)

Hence, the approximate area of the solid portion is 3.14r^2(h-\frac{1}{3}h_1)

5 0
3 years ago
after five days in her new job, karen has $800 in her bank account. if she is adding exactly $50 to her account each day, when w
Colt1911 [192]

Answer:

After 4 more days

Step-by-step explanation:

The remaining amount of money needed to reach the goal is $200 this is because 1000-800=200

Now we divide the 200 by the amount Karen  earns a day

200/50=4

That means after 4 more days Karen will have $1000

8 0
2 years ago
WRONG ANSWERS WILL BE REPORTED- PLS GIVE EXPLANATION WTIH ANSWER<br> 8TH GRADE MATH
raketka [301]

Answer:

95.

Step-by-step explanation:

2.85 times 10⁶=2850000

then 2850000÷30,000=9.5

so either 95 or 9.5

Which one sounds correct should be.

6 0
2 years ago
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