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VMariaS [17]
3 years ago
7

Help me will mark as brainliest only the 8th one​

Mathematics
2 answers:
Arlecino [84]3 years ago
8 0

Answer:

Step-by-step explanation:

Perimeter of rectangle = 52 cm

2*(length + width) = 52

2*(l + 42/5) = 52

l +\frac{42}{5}=\frac{52}{2}\\\\l+\frac{42}{5}=26\\\\      l = 26 - \frac{42}{5}\\\\      l = \frac{26*5}{1*5}-\frac{42}{5}\\\\l = \frac{130}{5}-\frac{42}{5}\\\\l=\frac{130-42}{5}\\l= \frac{88}{5}\\\\

love history [14]3 years ago
6 0
Do you still need help
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Help me Please! Find the volume and surface area for all.
HACTEHA [7]

Answer:

V =41.41³

A = 94.41²

----

V =225.16³

SA =283.25²

----

V = 64³

SA =113.32²

----

V =433.33³

SA = 378.57²

Step-by-step explanation:

Picture 2 = a = 1/2 base = 3.5 x 3.5 = 12.25  b= 5 x 5 = 25

c²= a² + b² = 3.5² + 5²

c ²= √12.25 + √25

c ²= √ 37.5 = 6.12372435696

c ² = 6.1237   missing side

Picture 1 + 2  formula SA = bh + (s1 + s2 + s3)H

V =  V= 1/2 b x h  h x SA

Picture 3 + 4  formula SA= a²+ 2a   a² / 4 + h²    V= a²  h/3

5 0
3 years ago
Ms.Littlebird is shopping at a farmers market. She buys 10 eggs for $0.33 per egg. She also buys 3 pounds of beets at a cost of
hjlf

Answer: she spent $10.21

Step-by-step explanation:

She buys 10 eggs for $0.33 per egg. This means that the total cost of eggs that she bought would be

10 × 0.33 = $3.3

She also buys 3 pounds of beets at a cost of $1.42 per pound. This means that the total cost of of beets that she bought would be

3 × 1.42 = $4.26

Before she leaves, Ms. Littlebird purchases 5/8 lb of spinach, which costs $4.24 per pound. This means that the total cost of spinach that she bought would be

5/8 × 4.24 = $2.65

Total amount that Ms Littlebird spend at the farmers market is

3.3 + 4.26 + 2.65 = $10.21

8 0
4 years ago
John and Martha are contemplating having children, but John’s brother has galactosemia (an autosomal recessive disease) and Mart
Rina8888 [55]
<h2>Answer:</h2>

Probability=\frac{1}{24}

<h2>Step-by-step explanation:</h2>

As the question states,

John's brother has Galactosemia which states that his parents were both the carriers.

Therefore, the chances for the John to have the disease is = 2/3

Now,

Martha's great-grandmother also had the disease that means her children definitely carried the disease means probability of 1.

Now, one of those children married with a person.

So,

Probability for the child to have disease will be = 1/2

Now, again the child's child (Martha) probability for having the disease is = 1/2.

Therefore,

<u>The total probability for Martha's first child to be diagnosed with Galactosemia will be,</u>

Probability=\frac{2}{3}\times \frac{1}{2}\times \frac{1}{2}\times \frac{1}{4}\\Probability=\frac{1}{24}

(Here, we assumed that the child has the disease therefore, the probability was taken to be = 1/4.)

<em><u>Hence, the probability for the first child to have Galactosemia is \frac{1}{24}</u></em>

3 0
3 years ago
Find the greatest common factor of the following monomials : 10b^5 , 26b^6
charle [14.2K]

Answer:

2b^5.

Step-by-step explanation:

The Greatest Common Factor of 10 and 26 is 2.

The GCF of b^5 and b^6 is 5^5.

Answer is 2b^5.

4 0
3 years ago
a desktop computer costs 849.75 and the hard drive is 63.3% of the total cost. what is a reasonable estimate for the cost of the
Alex_Xolod [135]
63.3% * 849.75 = $537.89
4 0
3 years ago
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