Help please i’m terrible at maths !!

Least multiple of 5 and 25

melomori [17]

Answer:

25

Step-by-step explanation:

25 is a multiple of 5, so is the least multiple of both 5 and 25.

8 0

3 years ago

Read 2 more answers

"two less than the product of seven and a number?"

sweet-ann [11.9K]

Answer:

-5

Step-by-step explanation:

two less means two minus seven times one

so is two minus seven

6 0

3 years ago

(This is a "show your work" type of assignment)

joja [24]

Answer:

Part 1) It is not possible to apply the Pythagorean Theorem to find the missing side, because is not a right triangle

Part 2) I would use the law of the cosine, because to apply the law of sine I would need to know the value of angle C or angle B

Part 3) The length of side CB is $369\ units$

Part 4) The measure of angle C is $35\°$

Part 5) The measure of angle B is $88\°$

Step-by-step explanation:

Part 1) Can you use Pythagorean Theorem to find the missing side?

we know that

The Pythagorean Theorem is used in a right triangle

The triangle ABC of the figure is not a right triangle

therefore

It is not possible to apply the Pythagorean Theorem to find the missing side

Part 2) Would you use Law of Sine or Law of Cosine to find the length of side CB?

I would use the law of the cosine, because to apply the law of sine I would need to know the value of angle C or angle B

Part 3) Find the length of side CB. Show your work and round your answer to the nearest whole number

Applying the law of cosine

$BC^{2}=AB^{2}+AC^{2}-2(AB)(AC)cos(A)$

substitute the values

$BC^{2}=255^{2}+440^{2}-2(255)(440)cos(57\°)$

$BC^{2}=136,408$

$BC=369\ units$

Part 4) Find the measure of angle C. (Hint: use the other “Law”). Round your answer to the nearest whole degree

Applying the law of sines

$\frac{AB}{sin(C)}=\frac{CB}{sin(A)}$

substitute the values

$\frac{255}{sin(C)}=\frac{369}{sin(57\°)}$

$sin(C)=255*sin(57\°)/369=0.5796$

$C=arcsin(0.5796)=35\°$

Part 5) What is the measure of angle B? Show your work and round your answer to the nearest whole degree.

Remember that

the sum of the interior angles of a triangle must be equal to 180 degrees

sp

substitute the values and solve for <B

$57\°+$

4 0

3 years ago

Drew purchased a 4K Blu-ray for $18.00 and sold it to a customer on EBay for 50% more than the purchase price . The customer was

Setler [38]

Answer: $24.84

Step-by-step explanation: So if the seller sold the Blu-ray for 50% more than the original purchase price, it will equal to $27 from $18.00 - a $9.00 difference. An 8% sales tax was then charged on top of the $27.00 purchase that would total to $2.16 deduction.

$27.00 - 2.16 = <u>$24.84</u> for the total cost of the Blu-ray.

3 0

3 years ago

Subtract: 3 x 106 – 7.197 x 105 = WWW

algol [13]

Answer:

w= 7.59

Step-by-step explanation:

6 0

3 years ago