All categories

3 years ago

8a+3b-10+c the power of 2 when a=2,b=5 and c=4

Mathematics

1 answer:

egoroff_w [7]3 years ago

4 0

(16 + 15 -10 +4) = 25
25 squared is 625

You might be interested in

Compute $\sqrt{25^2-7^2}$.

EastWind [94]

Answer:

Step-by-step explanation:

$\sqrt{25^2-7^2}\\\\=\sqrt{(25-7)(25+7)}\\\\=\sqrt{18(32)}\\\\=\sqrt{9*2*2^5}\\\\=\sqrt{3^2\cdot 2^6}\\\\=\sqrt{(3\cdot2^3)^2}\\\\=3\cdot2^3\\\\=3\cdot8\\\\=24$

5 0

2 years ago

Explain the steps you would take to complete this conversion problem

OLEGan [10]

Answer:

20909.09 grams

Step-by-step explanation:

$\frac{46 \: lb}{1} \times \frac{1 \: kg}{2.2 \: lb} \times \frac{1000 \: g}{1 \: kg} = \\ \frac{46 \: lb}{2.2 \: lb} \times \frac{1 \: kg}{1} \: \times \frac{1000 \: g}{1 \: kg} = \\\frac{230 \: }{11 \:} \times \frac{1 \: kg}{1 \: kg \:}\times \frac{1000 \: g}{1 \:} = \\\frac{230 \: }{11 \:} \times \frac{1}{1}\times \frac{1000 \: g}{1 \:} = \\\ \frac{230}{11}g \times 1g \times \: 1000g$

= 230 grams / 11 grams × 1000 grams = 20.90909... × 1000 = 20909.09 grams

8 0

2 years ago

Read 2 more answers

there were three full pizzas sitting on the counter. if joe ate 1/4 of a pizza,rhoda at 3/8 of a pizza,and chris ate 4 slices, h

IrinaK [193]

ANSWER:
15 SLICES

Explanation:
Joe ate 2 slices (1/4 = 2/8), Rhoda ate 3 (3/8), Chris ate 4.
2+3+4= 9.
There are 3 pizzas divided into 8 slices per pizza.
3 x 8 = 24 ; 24 SLICES TOTAL
Subtract 9 (that’s what was consumed) from 24.
24-9 = 15 ; 15 SLICES LEFT OVER

pls mark brainliest hehe

6 0

2 years ago

Father is 20 years older than son. if the sum of their ages is 40 years find their age

sweet-ann [11.9K]

Answer:

20 is the father's 20 is the son

Step-by-step explanation:

20+20=40

40/2=20

40-20=20

another way:

20:n= 40

40-20=20

20:20=40

4 0

2 years ago

Read 2 more answers

PLZ HELP ASAP WILL GIVE BRAINLIEST :)!!!

Kobotan [32]

9 students earned an 85 or higher.

2 earned 85
1 earned 86
3 earned 91
1 earned 94
2 earned 95.

2+1+3+1+2=9

3 0

3 years ago