All categories

3 years ago

Evaluate the expression when a=5.a² - 17

Mathematics

2 answers:

jek_recluse [69]3 years ago

8 0

Answer:

a²-17=8

Step-by-step explanation:

5²-17= 25-17

= 8

Alecsey [184]3 years ago

3 0

Answer:

Step-by-step explanation:

$5^{2}$ −17

=25−17

You might be interested in

Help I need help on a find the x 4x + 16=

sweet-ann [11.9K]

i wanna say its 20x i think

But i hated this!

3 0

3 years ago

12p + 7 > 139 greater or less than

bazaltina [42]

Answer:

$\Huge \boxed{p>11}$

Step-by-step explanation:

First, subtract by 7 both sides of equation.

$\displaystyle 12p+7-7>139-7$

Solve.

$\displaystyle 139-7=132$

$12p>132$

Then, divide by 12 both sides of equation.

$\displaystyle \frac{12p}{12}=\frac{132}{12}$

Solve to find the answer.

$\displaystyle 132\div12=11$

$\huge \boxed{p>11}$ , which is our answer.

3 0

4 years ago

Last week Anna received a pay check for $442.50. She noticed in the check stub that $47.30 of the money she earned had been with

Troyanec [42]

Answer:

Percentage of Taxes = 10.689 %

Step-by-step explanation:

Given that

Total earning of Anna is $442.50

The amount which is held with Taxes = $47.30

Now in terms of percentage

percentage of taxes from her total earning = $\frac{47.30}{442.50} times 100$

So % taxes = ( 0.106892) × 100

∴ Taxes percentage = 10.689 %

6 0

4 years ago

Eve is making a bird house. To make the walls she takes a piece of wood and cuts it into 4 pieces in the ratio 5:6:6:7. The long

allsm [11]

Answer:

The original piece of wood is 108 cm

Step-by-step explanation:

From the given ratio, the shortest is of the ratio 5 and the longest is of the ratio 7

Let the original piece of wood be x

so the sum of the ratios will be;

5 + 6 + 6 + 7 = 24

the shortest length would be 5/24 * x

= 5x/24

the longest will be 7/24 * x = 7x/24

From the question;

7x/24 -5x/24 = 9

(7x-5x) = 24(9)

2x = 24(9)

x = (24 * 9)/2

x = 108 cm

4 0

3 years ago

What three points are solutions to 2x-y =4

DochEvi [55]

Answer:

Attached file

Step-by-step explanation:

5 0

2 years ago

Evaluate the expression when a=5.a² - 17​

Evaluate the expression when a=5.a² - 17