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3 years ago

What is 2² x 5 ? Some help me please !

Mathematics

2 answers:

Naddika [18.5K]3 years ago

8 0

The answer is 20 i’m pretty sure

drek231 [11]3 years ago

6 0

Answer: 20

Step-by-step explanation:

2²=2×2=4

4×5=20

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Beatriz is reading a book tgat has 530 pages. If she reads 10 pages a day, how many days will it take her to finish the book?

Art [367]

The equation you want to use is this:

10x = 530 10 pages for x days

x = 530/10 530 pages divided by 10 pages

So the answer is,

53 days

6 0

2 years ago

Read 2 more answers

Please show your work! Thankyou!

ZanzabumX [31]

Log₄(y+2) = 3, transform it into exponent form:

(y+2) = 4³
y+2 = 64
y= 62

5 0

3 years ago

The weight of a Great blue heron, a type of bird, can grow to around 4 pounds, but can vary. Let W be a random variable that rep

hammer [34]

Answer:

10 ≥ w ≥ 9 ( ? )

Step-by-step explanation:

the probability that a Great blue heron is at least 9 pounds, but no more than 10 pounds -> w= weight of great blue heron

w is at lest 9 pound's -> w ≥ 9

w is no more than 10 pound's -> w ≥ 10

w ≥ 9 ( + ) w ≥ 10 = 10 ≥ w ≥ 9

6 0

3 years ago

Help me out please will mark you BRAINLIST

melisa1 [442]

Answer:

D. 18.68

Step-by-step explanation:

$27\div \frac{5}{3}-6+53\times (\frac{2}{5})^2$

Applying PEMDAS as order of operations.

Solving the exponents first $[(\frac{2}{5})^2=\frac{4}{25}]$

$=27\div \frac{5}{3}-6+53\times \frac{4}{25}$

Multiplying $[53\times \frac{4}{25}=8.48]$

$=27\div \frac{5}{3}-6+8.48$

Dividing $[27\div \frac{5}{3}=16.2]$

$=16.2-6+8.48$

Adding and subtracting.

$=18.68$

6 0

3 years ago

Find x<br> a) 21 √2<br> b)7<br> c)21 √2/2<br> d)21 √3/2

fgiga [73]

Answer:

Step-by-step explanation:

Use the sine ratio in the left, right triangle to find the common side to both triangles and the exact values

sin60° = $\frac{\sqrt{3} }{2}$ , cos45° = $\frac{1}{\sqrt{2} }$ , thus

sin60° = $\frac{opposite}{hypotenuse}$ = $\frac{opp}{7\sqrt{3} }$ = $\frac{\sqrt{3} }{2}$ ( cross- multiply )

2 × opp = 21 ( divide both sides by 2 )

opp = $\frac{21}{2}$

Now consider the right triangle on the right, using the cosine ratio

cos45° = $\frac{adjacent}{hypotenuse}$ = $\frac{\frac{21}{2} }{x}$ = $\frac{1}{\sqrt{2} }$ ( cross- multiply )

x = $\frac{21}{2}$ × $\sqrt{2}$ = $\frac{21\sqrt{2} }{2}$ → C

5 0

2 years ago