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2 years ago

64.3- 3 x 23 - 2 is what.

Mathematics

2 answers:

andreev551 [17]2 years ago

7 0

Answer:

-6.7

Step-by-step explanation:

Lena [83]2 years ago

3 0

Answer: -6.7

Step-by-step explanation:

64.3−(3)(23)−2

=−6.7

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Nhich pairs of triangles appear to be congruent? Check all that apply.

Fiesta28 [93]

Answer:

Answer is B and C Triangles 1, 3 and 4 appear to be congruent

8 0

2 years ago

Helen has 48 cubic inches of clay to make a solid square right pyramid with a base edge measuring 6 inches. Which is the slant h

Nikitich [7]

Answer: 5 inches

Step-by-step explanation:

Given: Volume of clay = 48 cubic inches

If we make a solid square right pyramid with a base edge a= 6 inches.

Then its base area = $a^2=6^2=36\ inches^2$

we know that volume of square right pyramid= $\frac{1}{3}\times\ a^2h$

Therefore, volume of square right pyramid made by all of clay= $\frac{1}{3}\times\ a^2h$ =48 cubic inches

$\Rightarrow\frac{1}{3}\times\ (36)\times\ h=48\\\Rightarrow12h=48\\\Rightarrow\ h=4\ inches.....\text{[Divide 12 on both sides]}$

Now, slant height $l=\sqrt{(\frac{a}{2})^2+h^2}$

$\\\Rightarrow\ l=\sqrt{3^2+4^2}\\\Rightarrow\ l=\sqrt{9+16}\\\rightarrow\ l=\sqrt{25}\\\Rightarrow\ l=5$

The slant height of the pyramid if Helen uses all the clay=5 inches

5 0

2 years ago

Read 2 more answers

Factor 25 into prime numbers

kirill [66]

Image result for factor 25 into prime numbers

25 is a composite number, and it is 5 squared. 25 = 1 x 25 or 5 x 5. Factors of 25: 1, 5, 25. Prime factorization: 25 = 5 x 5, which can also be written 25 = 5².

8 0

3 years ago

Which of the following is the least? A. 0.105 B. 0.501 C. 0.015 D. 0.15

Naddika [18.5K]

C is the least that is beause it is .015 which is smaller than 0.15

8 0

2 years ago

Please help! Question posted above ^

emmainna [20.7K]

Answer:

( x^2 - 6 )^2

Step-by-step explanation:

x^4 -12x^2 +36

Find one factor
Factor by grouping

(x^2 - 6x) (x^2 - 6x)

*solution* ( x^2 - 6 )^2

8 0

3 years ago