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3 years ago

Can someone please solve this? a-3 Times a+7

Mathematics

2 answers:

Colt1911 [192]3 years ago

8 0

You have to combine like terms.
Answer: -2a+7

3241004551 [841]3 years ago

5 0

The answer is a^2+4a−21. use the foil technique. (First, Outer, Inner, Last)

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3 years ago

What is the area of a triangle that has a base of 10 inches and a height of 7 inches

Natali [406]

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3 years ago

X - 2y = 5 -3x + 2y = 7 A.x=3, y=-1 B.x = 11, y = 12 C.x=-6, y =- D. x= 3, y=1

Rina8888 [55]

The answer is A

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7 0

4 years ago

Read 2 more answers

Please find the angles

marusya05 [52]

Step-by-step explanation:

a/q both the traingles are similar/congruent so,

theri angles also have equal value

angle Q = angle A

so,

apply angle sum property of triangle in ∆PQR

so according to it

Angle

P + Q + R = 180

→ 45° + 15° + Q = 180

→ 60° + Q = 180

→ Q = 180 - 60 = 60°

→ angle Q = 60°

therefore, angle A = 60°

Angle R = angle B

so,

angle B = 15°

as, angle P = angle C

so,

angle C = 45°

hope this answer helps you dear....take care and may u have a great day ahead!

6 0

3 years ago